B K Precision Corporation 9140 Series Triple Output Multi Range DC Power Supplies User Manual
- June 12, 2024
- B K Precision Corporation
Table of Contents
9140 Series Triple Output Multi Range DC Power Supplies
Product Information
The product is an instrument designed for measurement purposes.
It is important to follow the safety precautions outlined in the
user manual to ensure safe operation and maintenance of the
instrument. The instrument has a category rating which determines
the electrical energy and voltage impulses it can handle. The
category rating is accompanied by a maximum voltage for the circuit
to be tested.
Safety Precautions
-
Comply with all safety precautions and warnings mentioned in
the user manual. -
Failure to follow the safety precautions may violate the safety
standards of the instrument and result in liability.
Category Ratings
-
Category I (CAT I): Measurement instruments not intended to be
connected to mains supply. -
Category II (CAT II): Measurement instruments meant to be
connected to standard wall outlets or similar sources. -
Category III (CAT III): Measurement instruments meant to be
connected to mains installation of a building. -
Category IV (CAT IV): Measurement instruments meant to be
connected to primary power entering a building or outdoor
wiring.
Do not use the instrument in an electrical environment with a
higher category rating than specified in the manual. Ensure that
any accessories used with the instrument have a category rating
equal to or higher than the instrument’s category rating to
maintain the overall measuring system’s rating.
Electrical Power
The instrument is designed to operate in a CATEGORY II mains
power environment with a voltage of either 115 V RMS or 230 V RMS.
Only use the power cord supplied with the instrument and ensure it
is suitable for use in your country.
Grounding
To minimize shock hazard, the instrument chassis and cabinet
must be connected to an electrical safety ground. The instrument is
grounded through the ground conductor of the supplied
three-conductor AC line power cable. Plug the power cable into an
approved three-conductor electrical outlet. The power jack and
mating plug of the power cable meet IEC safety standards.
Do not modify or disable the ground connection. Failure to use a
properly grounded approved outlet and the recommended
three-conductor AC line power cable may result in injury or
death.
2
Safety Summary
The following safety precautions apply to both operating and maintenance
personnel and must be followed during all phases of operation, service, and
repair of this instrument.
Before applying power to this instrument:
· Read and understand the safety and operational information in this manual.
· Apply all the listed safety precautions.
· Verify that the voltage selector at the line power cord input is set to the
correct line voltage. Operating the instrument at an incorrect line voltage
will void the warranty.
· Make all connections to the instrument before applying power.
· Do not operate the instrument in ways not specified by this manual or by B&K
Precision.
Failure to comply with these precautions or with warnings elsewhere in this
manual violates the safety standards of design, manufacture, and intended use
of the instrument. B&K Precision assumes no liability for a customer’s failure
to comply with these requirements.
Category rating
The IEC 61010 standard defines safety category ratings that specify the amount
of electrical energy available and the voltage impulses that may occur on
electrical conductors associated with these category ratings. The category
rating is a Roman numeral of I, II, III, or IV. This rating is also
accompanied by a maximum voltage of the circuit to be tested, which defines
the voltage impulses expected and required insulation clearances. These
categories are:
Category I (CAT I): Measurement instruments whose measurement inputs are not
intended to be connected to the mains supply. The voltages in the environment
are typically derived from a limited-energy transformer or a battery.
Category II (CAT II): Measurement instruments whose measurement inputs are
meant to be connected to the mains supply at a standard wall outlet or similar
sources. Example measurement environments are portable tools and household
appliances.
Category III (CAT III): Measurement instruments whose measurement inputs are
meant to be connected to the mains installation of a building. Examples are
measurements inside a building’s circuit breaker panel or the wiring of
permanently-installed motors.
3 Category IV (CAT IV): Measurement instruments whose measurement inputs are
meant to be
connected to the primary power entering a building or other outdoor wiring.
Do not use this instrument in an electrical environment with a higher category
rating than what is specified in this manual for this instrument.
You must ensure that each accessory you use with this instrument has a
category rating equal to or higher than the instrument’s category rating to
maintain the instrument’s category rating. Failure to do so will lower the
category rating of the measuring system.
Electrical Power
This instrument is intended to be powered from a CATEGORY II mains power
environment. The mains power should be 115 V RMS or 230 V RMS. Use only the
power cord supplied with the instrument and ensure it is appropriate for your
country of use.
Ground the Instrument
To minimize shock hazard, the instrument chassis and cabinet must be connected
to an electrical safety ground. This instrument is grounded through the ground
conductor of the supplied, three-conductor AC line power cable. The power
cable must be plugged into an approved three-conductor electrical outlet. The
power jack and mating plug of the power cable meet IEC safety standards.
Do not alter or defeat the ground connection. Without the safety ground
connection, all accessible conductive parts (including control knobs) may
provide an electric shock. Failure to use a properlygrounded approved outlet
and the recommended three-conductor AC line power cable may result in injury
or death.
4
Unless otherwise stated, a ground connection on the instrument’s front or rear
panel is for a reference of potential only and is not to be used as a safety
ground. Do not operate in an explosive or flammable atmosphere.
Do not operate the instrument in the presence of flammable gases or vapors,
fumes, or finely-divided particulates.
The instrument is designed to be used in office-type indoor environments. Do
not operate the instrument · In the presence of noxious, corrosive, or
flammable fumes, gases, vapors, chemicals, or finely-divided
particulates. · In relative humidity conditions outside the instrument’s
specifications. · In environments where there is a danger of any liquid being
spilled on the instrument or where any
liquid can condense on the instrument. · In air temperatures exceeding the
specified operating temperatures. · In atmospheric pressures outside the
specified altitude limits or where the surrounding gas is not air. · In
environments with restricted cooling air flow, even if the air temperatures
are within specifications. · In direct sunlight. This instrument is intended
to be used in an indoor pollution degree 2 environment. The operating
temperature range is 0C to 40C and 20% to 80% relative humidity, with no
condensation allowed. Measurements made by this instrument may be outside
specifications if the instrument is used in nonoffice-type environments. Such
environments may include rapid temperature or humidity changes, sunlight,
vibration and/or mechanical shocks, acoustic noise, electrical noise, strong
electric fields, or strong magnetic fields.
Do not operate instrument if damaged
If the instrument is damaged, appears to be damaged, or if any liquid,
chemical, or other material gets on or inside the instrument, remove the
instrument’s power cord, remove the instrument from service, label
5
it as not to be operated, and return the instrument to B&K Precision for
repair. Notify B&K Precision of the nature of any contamination of the
instrument.
Clean the instrument only as instructed
Do not clean the instrument, its switches, or its terminals with contact
cleaners, abrasives, lubricants, solvents, acids/bases, or other such
chemicals. Clean the instrument only with a clean dry lint-free cloth or as
instructed in this manual. Not for critical applications
This instrument is not authorized for use in contact with the human body or
for use as a component in a life-support device or system.
Do not touch live circuits
Instrument covers must not be removed by operating personnel. Component
replacement and internal adjustments must be made by qualified service-trained
maintenance personnel who are aware of the hazards involved when the
instrument’s covers and shields are removed. Under certain conditions, even
with the power cord removed, dangerous voltages may exist when the covers are
removed. To avoid injuries, always disconnect the power cord from the
instrument, disconnect all other connections (for example, test leads,
computer interface cables, etc.), discharge all circuits, and verify there are
no hazardous voltages present on any conductors by measurements with a
properly-operating voltagesensing device before touching any internal parts.
Verify the voltage-sensing device is working properly before and after making
the measurements by testing with known-operating voltage sources and test for
both DC and AC voltages. Do not attempt any service or adjustment unless
another person capable of rendering first aid and resuscitation is present. Do
not insert any object into an instrument’s ventilation openings or other
openings.
Hazardous voltages may be present in unexpected locations in circuitry being
tested when a fault condition in the circuit exists.
Fuse replacement must be done by qualified service-trained maintenance
personnel who are aware of the instrument’s fuse requirements and safe
replacement procedures. Disconnect the instrument from
6
the power line before replacing fuses. Replace fuses only with new fuses of
the fuse types, voltage ratings, and current ratings specified in this manual
or on the back of the instrument. Failure to do so may damage the instrument,
lead to a safety hazard, or cause a fire. Failure to use the specified fuses
will void the warranty.
Servicing
Do not substitute parts that are not approved by B&K Precision or modify this
instrument. Return the instrument to B&K Precision for service and repair to
ensure that safety and performance features are maintained.
For continued safe use of the instrument
· Do not place heavy objects on the instrument. · Do not obstruct cooling air
flow to the instrument. · Do not place a hot soldering iron on the instrument.
· Do not pull the instrument with the power cord, connected probe, or
connected test lead. · Do not move the instrument when a probe is connected to
a circuit being tested.
Compliance Statements
Disposal of Old Electrical & Electronic Equipment (Applicable in the European
Union and other European countries with separate collection systems)
This product is subject to Directive 2002/96/EC of the European Parliament and
the Council of the European Union on waste electrical and electronic equipment
(WEEE), and in jurisdictions adopting that Directive, is marked as being put
on the market after August 13, 2005, and should not be disposed of as unsorted
municipal waste. Please utilize your local WEEE collection facilities in the
disposition of this product and otherwise observe all applicable requirements.
7
Safety Symbols
Symbol
Description
Indicates a hazardous situation which, if not avoided, will result in death or
serious injury. Indicates a hazardous situation which, if not avoided, could
result in death or serious injury. Indicates a hazardous situation which, if
not avoided, will result in minor or moderate injury.
Refer to the text near the symbol.
Electric Shock hazard
Alternating current (AC)
Chassis ground
Earth ground
Indicates the In position of the power switch when instrument is ON.
Indicates the Out position of the power switch when instrument is OFF.
Indicates practices not related to physical injury. Table 1 Safety Symbols
Contents
1 Introduction
11
1.1 Product Overview
11
1.2 Contents
12
1.3 Features
12
1.4 Dimensions
13
1.5 Rackmount Installation
14
1.6 Front Panel
15
1.7 Display
16
1.8 Rear Panel
17
2 Getting Started
18
2.1 Input Power and Fuse Requirements
18
2.2 Fuse Requirements
19
2.3 Check or Replace Fuse
19
2.4 Preliminary Check
21
2.5 Self test Errors
22
3 Basic Front Panel Operation
23
3.1 Keys
23
3.1.1 Main Keys
23
3.1.2 Soft Keys
24
3.1.3 Numeric Keys
24
3.1.4 Output Control
24
3.2 Display
25
3.3 Check Model and Firmware Version
28
3.4 Setting Voltage and Current
29
4 Output Configuration
30
4.1 Protection Settings
30
4.1.1 Over Voltage Protection (OVP)
30
4.1.2 Over Current Protection (OCP)
30
4.1.3 Over Temperature Protection & Over Temperature Warning (OTP & OTW)
30
4.1.4 Vmax/Vmin
31
4.1.5 Protection Clear
31
4.2 Output Settings
31
4.2.1 Remote Sense
31
4.2.2 Output Timer
32
4.2.3 Voltage Slew
33
4.2.4 Current Slew
33
9
4.2.5 On/Off Delay
33
4.3 Operating Mode and Coupling
34
4.3.1 Normal Mode
34
4.3.2 Series Mode
36
5 List Mode
47
5.1 List Setup
47
5.2 Edit List
49
5.2.1 Load/Save List
50
5.2.1 List Number
51
5.2.2 Next
52
5.2.3 Repeat
52
5.2.4 Steps
52
5.3 List Run
55
6 Data Logger
58
6.1 Using the Data Logger Function
58
6.2 Parameters
59
6.2.1 Sampling Interval
59
6.2.2 File Path
59
6.2.3 T. Stamp Filename
59
6.2.4 Log Data
60
6.2.5 Status Code
61
6.2.6 Trigger Source
61
6.2.7 Datalog Start/Stop
62
7 Utilities Menu
63
7.1 User Settings
63
7.1.1 Key Lock Output
63
7.1.2 Beep Sound
63
7.1.3 Date
64
7.1.4 Time
64
7.1.5 Screen Intensity
64
7.1.6 Language
64
7.2 Remote Interface
65
7.2.1 USB Settings
66
7.2.2 LAN
67
7.3 GPIB (optional)
73
7.4 Digital I/O
74
7.4.1 Functions
75
7.4.1 Polarity
76
7.4.1 Inhibit Mode
76
7.5 Test/Admin
77
7.5.1 Self Test
77
10
7.5.2 Security
77
7.6 Error Log
79
7.7 Help
81
7.8 On Screen Help
82
8 Key Lock
83
9 Save/Recall
84
9.1 Save the Output Settings
84
9.2 Recall the Instrument’s Settings
85
9.3 Power-On Settings
86
9.4 Screenshot
87
10 Calibration Adjustment Procedure
89
10.1 Voltage Calibration Adjustment
90
10.2 Current Calibration Adjustment
91
10.3 OVP Calibration Adjustment
92
10.4 OCP Calibration Adjustment
93
10.5 RTC Calibration Adjustment
94
11 Performance Verification
95
12 Specifications
98
13 Service Information
99
14 LIMITED THREE-YEAR WARRANTY
100
Introduction
1.1 Product Overview
9140: 32 V / 8 A / 300 W
9141: 60 V / 4 A / 300 W
Figure 1.1 Front View
The 9140 Series triple output multi-range DC power supplies combine industry- leading power density and performance with an extensive set of features in a compact 2U form factor.
Three isolated output channels each produce 100 W of clean power with exceptionally low ripple and noise characteristics. Combine channels to output up to 300 W, distributing the power across all three channels. Multiple outputs paired with advanced list mode programming, data logging, and protection features make these power supplies suitable for a wide range of benchtop or test system applications.
Model
Voltage per Channel Current per Channel Maximum Power per Channel Maximum
Combined Power
9140
0 to 32 V 0 to 8 A
Table 1.1 Models
100 W 300 W
9141
0 to 60 V
0 to 4 A
Introduction 12
1.2 Contents
Please inspect the instrument mechanically and electrically upon receiving it.
Unpack all items from the shipping carton, and check for any obvious signs of
physical damage that may have occurred during transportation. Report any
damage to the shipping agent immediately. Save the original packing carton for
possible future reshipment. Every power supply is shipped with the following
contents: · 1 x 9140 or 9141 Power Supply · 1 x AC Power Cord · 1 x
Certificate of Calibration · 1 x Test Report
Note:
Ensure the presence of all the items above. Contact the distributor or B&K
Precision if anything is missing.
1.3 Features
· Three independent galvanically isolated, floating output channels providing
up to 100 W per channel or 300 W total when combining all three channels
· High power density, compact 2U half-rack form factor · Multi-ranging
operation delivers rated power at various voltage/current combinations ·
Combine outputs in parallel or series to increase current or voltage (up to 24
A or 180 V depending
on the model) · Advanced list mode programming with internal storage for up to
10 list mode programs and list
sequencing capabilities · Digital I/O block offers external triggering,
voltage fault and remote inhibit capabilities · Overvoltage (OVP), overcurrent
(OCP), overtemperature (OTP), and includes a key-lock function · NISPOM-
compliant sanitization procedure to securely erase and return the instrument
to factory
settings
Introduction 13 · USB (USBTMC-compliant) and LXI compliant LAN interfaces
standard, GPIB optional · LabVIEW , IVI-C, and IVI.NET drivers provided
1.4 Dimensions
The 9140 power supply’s dimensions are approximately: 213 mm (8.4 in) x 88.2
mm (3.47 in) x 330 mm (13 in) (W x H x D).
Figure 1.2 Dimensions
Introduction 14
1.5 Rackmount Installation
The 9140 Series is compatible with the optional 19-inch rackmount kit model
RK2US. The RK2US installation instructions can be downloaded from
bkprecision.com
Figure 1.3 Dimensions
1.6 Front Panel
Introduction 15
Item
1 2 3 4 5 6 7 8
Name
Power Button
Figure 1.4 Front Panel
Description
Power the instrument ON or OFF
Function Keys See section ?? for details.
USB Host Port USB port used to connect flash drives.
Display
Visual presentation of the device function and measurements.
Numeric Keypad Used to enter precise values.
Rotary Knob Output
Soft Keys
Used to navigate menues or configure parameters.
Isolated and floating output channel supporting sheathed banana plugs and
spade lug type connectors Used to invoke any functions displayed above them.
Table 1.2 Front Panel
1.7 Display
Icon
Introduction 16
Description
The output is disabled.
The output is enabled and in constant voltage mode
The output is enabled and in constant current mode
Data loggin is enabled but not recording.
Data logging is enabled and recording.
The instrument is connected to a network.
An issue occured when attempting to connect to a network.
The instrument is not connected to a network.
All keys excluding softkey F6 are locked.
Over voltage protection was triggered.
Over current protection was triggered.
Over temperature protection was triggered.
The instrument is set to remote mode
Remote sense is enabled.
Remote
Table 1.3 Display Icons
1.8 Rear Panel
Introduction 17
Item
1 2 3 4 5 6 7 8
Name
Output/Sense
Kensington security slot GPIB Interface (Optional) Digital I/O
Figure 1.5 Rear Panel
Description
Rear panel output with remote sense. Internal relays switch between local and
remote sensing. Lock the instrument to a fixed location using the security
lock via the lock hole. Lock is not included.
Connect a GPIB cable to remotely control the unit `
Send or receive a signal to or from an external device.
USB interface LAN interface
Chassis ground AC power input
& fuse box
Connect a USB type B to type A to remotely control the unit. Connect a Cat 5/6
Ethernet straight-through patch cable to remotely control the unit. Provides a
zero potential voltage reference and a dissipation point for interference,
transient voltages and static.
Houses the fuse as well as the AC input.
Table 1.4 Rear Panel
Getting Started
Before connecting and powering up the instrument, please review and go through the instructions in this chapter.
2.1 Input Power and Fuse Requirements
The supply has a universal AC input that accepts line voltage input within:
AC Line Input
9140
9141
100 – 240 VAC ±10%, 47 to 63 Hz
AC Line Phase
Maximum Rated Input Power
Single Phase 500 VA
Before connecting to an AC outlet or external power source, be sure that the power switch is in the OFF position and verify that the AC power cord, including the extension line, is compatible with the rated voltage/current and that there is sufficient circuit capacity for the power supply. Once verified, connect the cable firmly.
The included AC power cord is safety certified for this instrument operating
in rated range. To change a cable or add an extension cable, be sure that it
can meet the required power
ratings for this instrument. Any misuse with wrong or unsafe cables will void
the warranty.
SHOCK HAZARD
The power cord provides a chassis ground through a third conductor. Verify
that your power outlet is of the three-conductor type with the correct pin
connected to earth ground.
2.2 Fuse Requirements
Getting Started 19
An AC input fuse is necessary when powering the instrument. The below table shows the fuse required for all models.
Model
9140
9141
Fuse Specification
3.15 AT, 250 V
3.15 AT, 250 V
2.3 Check or Replace Fuse
For safety, no power should be applied to the instrument while changing line
voltage operation. Disconnect all cables connected to the instrument before
proceeding.
Locate the fuse box next to the AC input connector in the rear panel. (See
figure 1.5) Insert a small flathead screwdriver into the fuse box slit to
pull and slide out the fuse box as indicated
below. Check and replace fuse if necessary. (See figure 2.1)
Figure 2.1 Fuse Removal
Getting Started 20
Any disassembling of the case or changing the fuse not performed by an authorized service technician will void the warranty of the instrument
SHOCK HAZARD:
Hazardous voltages may exist at the outputs and the load connections when
using a power supply with a rated output greater than 60 V. To protect
personnel against accidental contact with hazardous voltages, ensure that the
load and its connections have no accessible live parts. Ensure that the load
wiring insulation rating is greater than to the maximum output voltage of the
power supply.
The rear output terminals can accept wire sizes AWG 24 to AWG 12 (See Table 2.1).However, we recommend using 12 AWG if current output is between 5 to 10 A. Refer to Table 2 below to determine the proper wire size.
Wire Gauge Rating
AWG
10
12
14
16
18
20
22
24
26
28
Imax (A)
40
25
20
13
10
7
5
3.5 2.5 1.7
m/meter
3.3
5.2
8.3 13.2
21
33.5 52.8 84.3 133.9 212.9
Table 2.1 Wire Gauge Rating
Output Isolation
The output terminals of the 9240 Series are isolated from earth ground. An
earth ground terminal is provided on the front panel for convenience. Any
output terminal may be grounded. However, output terminals must not exceed
±200 VDC.
SHOCK HAZARD:
Floating voltage must not exceed 200 VDC.
Getting Started 21
2.4 Preliminary Check
Complete the following steps to verify the Power supply is ready for use.
Verify AC Input Voltage
Verify and check to make sure proper AC voltages are available to power the instrument. The AC voltage range must meet the acceptable specification as explained in section “2.1 Input Power and Fuse Requirements”.
Connect Power & Self-Test
Connect AC power cord to the AC receptacle in the rear panel and press the power button. It will run through a self-test procedure initially before booting to the main screen.
After Power on, during the self-test, the following should be displayed:
Figure 2.2 Initializing After the system scan is complete the LCD will display
as shown in Figure 2.3
Note:
The initial power on state is based on the settings set on Power-ON
Getting Started 22
Figure 2.3 Home Display
2.5 Self test Errors
The following errors will be displayed if the self-test did not complete
successfully:
Error Message
EEPROM Fail
Description
The internal EEPROM is corrupted or damaged.
System Lost
Last system settings within the EEPROM are lost.
Module Fail
Channel response failure.
Cal Lost
Calibration data within the EEPROM is lost.
Fact Loss
Factory calibration data is lost.
Model Lost
Channel initialization failed.
Table 2.2 Error Message
If any of these errors occur, please contact B&K Precision.
Basic Front Panel Operation
At power-on, the power supply will automatically enter the front-panel
operation mode and the instrument can be controlled via the front panel keys
and knob.
3.1 Keys
3.1.1 Main Keys
There are three main keys:
Navigates the 5 available screens. When navigating any menu returns the key will return “Home” main display
Opens up a menu giving access to various save and load options, regardless of the current display of the screen.
5 available displays:
Main page: Overview of the 3 outputs.
Single Channel Display 1 to 3: Detailed channel overview.
Live Output Monitoring: Oscilloscope like overview of the measured output parameters.
Opens the main menu bar. If a menu bar is already open,
pressing
will navigate to
the main menu bar.
More information on each display in 3.2.
Basic Front Panel Operation 24
3.1.2 Soft Keys
The unit has six soft keys, which are located beneath the screen. Each key
selects the corresponding function. Functions will vary depending on the
current menu or display.
Figure 3.1 Soft Keys
3.1.3 Numeric Keys
The numeric keys allow the configuration of various parameters. Using the numeric keys provides a fast
and precise input. The
key can be found with the numeric keys. Pressing enter will assign the
selected value to the desired parameter.
Figure 3.2 Numeric Keys
3.1.4 Output Control
The
button toggles the output On/Off. When output is enabled, the ON button will turn green
and the supply will display the state of the channel.
represents constant current mode.
represents constant voltage mode. This is indicated for
each channel independently. When output is disabled, the channel state will display
.
The
key toggles all the channels On/Off simultaneously. Its function may vary depending on the
coupling state of the channels. For more information go to Coupling.
Basic Front Panel Operation 25
3.2 Display
These power supplies have three main display modes: three channel display, single channel display, and
live output monitoring display. Press the
button to cycle between the different display modes or to
return home when viewing any other menu.
Three Channel Display
Provides information of the outputs’: · State · Run time · Voltage · Current ·
Power
Allows configuration of: · Vset · Iset
Figure 3.3 Three Channel Display
Single Channel Display
Provides information of the outputs’: · State · Run time · Voltage · Current ·
Power · Vmax/Vmin · OVP/OCP · OnDelay/OffDelay
Basic Front Panel Operation 26
Allows configuration of: · Vset · Iset · Vmax/Vmin · OVP/OCP ·
OnDelay/OffDelay
Figure 3.4 Single Channel Display
Basic Front Panel Operation 27
Live Output Monitoring
The live output monitoring display shows metered output voltage and current
over time. It is always active and will continuously plot and overwrite the
oldest value when the display graph is full.
Figure 3.5 Live Output Monitoring Display The Live output display can be
configured by setting the: Voltage, Current, and Time Scale.
Voltage Scale
The voltage scale of each output can be set from 10 mV/Div up to 20 V/Div. 1.
While in Live Output Display use the softkeys to select Voltage Scale. 2.
Select a channel to configure. 3. Use the rotary knob to navigate through the
available scales.
Current Scale
The current scale of each output can be set from 10 mA/Div up to 3 A/Div. 1.
While in Live Output Display use the softkeys to select Current Scale. 2.
Select a channel to configure. 3. Use the rotary knob to navigate through the
available scales.
Basic Front Panel Operation 28
Time Scale
The time scale of each output can be set from 1 s/Div up to 10 min/Div. 1.
While in Live Output Display use the softkeys to select Time Scale. 2. Use the
rotary knob to navigate through the available scales.
Voltage Offset
A voltage offset can be added to each output. The offset can be set from 0 V
up to 60.6 V on the 9141 and 0 V up to 32.2 V on the 9140. 1. While in Live
Output Display use the softkeys to select Voltage Offset. 2. Select a channel
to configure. 3. Use the rotary knob to navigate through the available scales.
Current Offset
A current offset can be added to each output. The offset can be set from 0 A
up to 4.4 A on the 9141 and 0 A up to 8.8 A on the 9140. 1. While in Live
Output Display use the softkeys to select Current Offset. 2. Select a channel
to configure. 3. Use the rotary knob to navigate through the available scales.
3.3 Check Model and Firmware Version
The firmware version, model, and serial number can be verified by entering the
security settings. Press button then use the soft keys to select Utilities >
Help > System Info to view model and firmware
information.
Basic Front Panel Operation 29
3.4 Setting Voltage and Current
Follow the steps below to set the output voltage or current. The values can be entered using the numeric keypad or the rotary knob.
1. Using the keypad: Use the soft keys to select the channel VSET or ISET
settings beneath channel view on the display. Then use the numeric keypad to
input the voltage or current value then press
to confirm.
2. Using the rotary knob: Use the soft keys to select the channel VSET or ISET settings beneath the channel view on display. Then turn the knob clockwise to increment or counter-clockwise to decrement the value.
a. Use the
below the rotary knob to move the cursor. Press the knob in to confirm.
Output Configuration
4.1 Protection Settings
4.1.1 Over Voltage Protection (OVP)
Over voltage protection is always enabled, however the user can set the OVP voltage limits.
1. Press the
button then use the soft keys to select Output config > Protection settings
2. Use the soft keys to select a channel to adjust.
3. Select OVP Limit.
4. Use the numeric keypad or rotary knob to set the desired OVP limit.
When OVP protection is tripped during operation, the output will be de-rated to 0 V and the icon will appear between the wattage and Vset.
4.1.2 Over Current Protection (OCP)
Over current protection state and limit can be set in the protection settings.
1. Press the
button then use the soft keys to select Output config > Protection settings
2. Use the soft keys to select a channel to adjust.
3. Press OCP State to toggle the over current protection on or off.
4. Select OCP Limit and use the numeric keypad or rotary knob to set limit value.
When OCP protection is tripped during operation, the output will be de-rated to 0 V and the icon will appear between the wattage and Vset.
4.1.3 Over Temperature Protection & Over Temperature Warning (OTP & OTW)
The state and limit of both OTP & OTW cannot be set or configured in the protection settings. OTP is set
to 85 °C and OTW is set to 75 °C. If the temperature reaches either OTW, the OT icon will blink on the display with a low period beep sound. If temperature reaches OTP the OT icon will show on the display
and the output will turn off. The output will not be allowed to turn on until the temperature drops to 75 °C.
Fan Speed Control
2A
0%
2 to 5 A
25%
5A
100%
Output Configuration 31
4.1.4 Vmax/Vmin
Configure the maximum or minimum voltage value the user can set from the protection settings.
1. Press the
button then use the soft keys to select Output config >
Protection settings
2. Use the soft keys to select a channel to adjust.
3. Select Vmax or Vmin and set a maximum or minimum value using the numeric keypad or rotary knob.
4.1.5 Protection Clear
Protections are cleared from the output configuration settings as shown in the following steps.
1. Press the
button then use the soft key to select Output config >
Protection Clear.
2. Press the soft key to clear the protection for the corresponding channel, or select
All CH Clear to clear protections on all three channels.
4.2 Output Settings
4.2.1 Remote Sense
Remote sense can be used to compensate for voltage drops (up to 1 V) due to
resistance from test leads connected to your device under test (DUT), thus
providing more accurate output voltage. When remote sense is enabled, the
positive (+S) and positive lead (+) of the DC output are connected to the
positive (+) of the load. Similarly, the negative sense (-S) and negative lead
(-) of the DC output are connected to the negative (-) end of the load shown
in figure 4.1
Figure 4.1 Remote Sense
Output Configuration 32
Never connect any power source into any of the terminals at any time during
operation. When output is enabled, DO NOT use your hands to touch the
terminals or the screws that are designed to tighten wires to the terminals.
Doing so may create a shock hazard under high voltage output conditions.
DO NOT at any time disconnect the wires from the S+ and S- terminals to the DUT while output is enabled (ON). Doing so may damage the power supply and cause unstable output.
Remote sense is disabled by default, see the following steps to enable remote sense:
1. Press the
button then use the soft key to select Output config > Output Settings.
2. Select a desired channel to configure.
3. Press Remote Sense using the soft key to enable remote sense.
4.2.2 Output Timer
Output timer can be set for each channel individually. When the output timer is enabled, an hourglass icon will be displayed next to the channel number. The timer countdown will begin when the channel output is enabled. The output is disabled when the countdown reaches 0. The timer can be set from 1 second to 99 hours 59 minutes and 59 seconds. Follow the steps below to enable and set the output timer:
1. Press the
button then use the soft key to select Output config > Output Settings.
2. Select a desired channel to configure. Push Timer State to enable the timer.
3. Select Timer Setting and set a desired time for the output to be enabled using the numeric keypad or rotary knob. The timer format is: HH:MM:SS. Use the keys to move the cursor.
Output Configuration 33
4.2.3 Voltage Slew
The rising voltage slew rate can be set in volts per second. The voltage slew range can be set from 0.001 V/s to 3200.0 V/s.
1. Press the
button then use the soft key to select Output config > Output Settings.
2. Select a desired channel to configure.
3. Select Voltage Slew and use the numeric keypad or rotary knob to adjust the slew rate value. Press to confirm input.
4.2.4 Current Slew
The rising current slew rate can be set in amps per second. The current slew range can be set from 1 A/s to 800 A/s.
1. Press the
button then use the soft key to select Output config > Output Settings.
2. Select a desired channel to configure.
3. Select Next Pg. > Current Slew and use the numeric keypad or rotary knob to adjust the slew rate
value. Press
to confirm input.
4.2.5 On/Off Delay
A channel on or off delay in seconds can be applied to any channel. These delays can be set from 0.001 s to 3600.0 s.
1. Press the
button then use the soft key to select Output config > Output Settings.
2. Select a desired channel to configure.
3. Select Next Pg. > On Delay to set an on delay or Off Delay to set an off delay.
4. Use the numeric keypad or rotary knob to adjust the delay value. Press
to confirm input.
4.3 Operating Mode and Coupling
Set the operation mode or coupling.
Output Configuration 34
Press the Mode.
button then use the soft key to select Output Config > Op. Mode/Coupling > Operation
4.3.1 Normal Mode
Sets operation mode to Normal.
Normal mode sets the instrument to operate as a true triple output power supply.
Press the
button then use the soft key to select Output Config > Op. Mode/Coupling >
Operation Mode > Normal.
9140
9141
Individual CH
Individual CH
32 V 8 A
60 V 4 A
Figure 4.2 Normal Mode
Output Configuration 35 In Normal mode the main page will display the three
outputs.
Toggles through CH1, CH2, CH3, and live output monitoring display.
Figure 4.3 Normal Mode Main Page Single CH displays more information about the
output, and allows configuration of more parameters.
Figure 4.4 Single Channel
Output Configuration 36
4.3.2 Series Mode
Set operation mode to Series. Series mode changes the UI to accurately
represent the possible outputs configurations. Series mode does not internally
wire the outputs. The outputs must be connected externally to increase the
available voltage range.
Press the
button then use the soft key to select Output Config > Op. Mode/Coupling > Operation
Mode > Series.
The image below illustrates the external wiring required to connect all channels in series. If CH1+ CH2 is chosen CH2’s positive terminal does not connect to CH3’s negative terminal.
Series CH1+2
9140
CH1 + CH2
64 V
All CHs 96 V
Series All
9141
CH1 + CH2
120 V
All CHs 180 V
Output Configuration 37
CH1 + CH2
Operation mode will be set to Series 1 + 2. Changing operation mode will undo previous coupling configuration.
Press the
button then use the soft key to select Output Config > Op. Mode/Coupling > Operation
Mode > Series > CH1 + CH2.
Figure 4.5 Series 1+2
In Series CH1 + 2 the main page will display the output of the combined outputs, as well as the output
of the individual CH3. The
button will toggle through single channel display for Series CH1 + 2,
CH 3, and live output monitoring.
Figure 4.6 Series CH1+2 Main Page
Output Configuration 38 Single CH displays more information about the output,
and allows configuration of more parameters. The voltage configurations will
now range from 0 v to 64 V for model 9140 and 0 V to 120 V for model 9141.
Figure 4.7 Series CH1+2 Single Channel Display Protection Setting menu will
also adjust the configurable values.
Figure 4.8 Series CH1+2 Protection Settings
Output Configuration 39
Series All
Operation mode will be set to Series All. Coupling will not be available in Series All mode.
Press the
button then use the soft key to select Output Config > Op. Mode/Coupling > Operation
Mode > Series > Series All.
Figure 4.9 Series All
In Series All mode
will only toggle between the Series All display and live output monitoring.
Series All CH display will adjust to voltage configuration between 0 V and 96 V for model 9140 and 0 V
to 180 V for model 9141.
Figure 4.10 Series All Main Page Protection Setting menu will also adjust the configurable values.
Output Configuration 40
Parallel Mode
Set operation mode to Parallel.
Parallel Mode does not internally wire the outputs. The outputs must be connected externally to increase the available current range.
Parallel Mode changes the UI to accurately represent the possible output configurations.
Press the
button then use the soft key to select Output Config > Op. Mode/Coupling > Operation
Mode > Parallel.
The image below illustrates the external wiring required to connect all channels in Parallel. If CH1+ CH2 is chosen CH2’s terminals do not connect to CH3’s terminals.
Parallel CH1+2
Parallel All
CH1 + CH2 16 A
9140
All CHs 24 A
CH1 + CH2 8A
9141
Table 4.1 Parallel Mode
All CHs 12 A
Output Configuration 41
CH1 + CH2
Operation mode will be set to Parallel 1 + 2. Selecting an operation mode will undo previous coupling configuration.
Press the
button then use the soft key to select Output Config > Op. Mode/Coupling > Operation
Mode > Parallel > CH1 + CH2.
Figure 4.11 Parallel CH 1+2
In Parallel CH1 + 2 Mode the main page will display the output of the combined outputs, as well as the
output of the individual CH3. The
button will toggle through single channel display for Parallel CH1
+ 2, CH 3, and live output monitoring.
Figure 4.12 Parallel CH 1+2 Main Display 9141
Output Configuration 42 The Single CH display will adjust to allow current
configuration between .030 A to 16 A for model 9140 and .030 A to 8 A for
model 9141.
Figure 4.13 Parallel CH 1+2 Single Channel Display Protection Setting menu
will also adjust the configurable range of each parameter.
Figure 4.14 Parallel CH 1+2 Protection Settings
Output Configuration 43
Parallel All
Operation mode will be updated based on selected mode. Coupling is not
available.
Figure 4.15 Parallel All Operation Mode
In Parallel All Mode the monitoring.
button will only toggle between the Parallel All display and live output
Parallel All CH display will adjust to allow value configuration of .045 to 24 A for model 9140 and .045 A to 12 A for model 9141.
Figure 4.16 Parallel All Main Page Protection Setting menu will also adjust the configurable values.
Output Configuration 44
Figure 4.17 Parallel All Main Page
Tracking
Voltage levels are tracked on either CH1+2 or All Channels.
Press the
button then use the soft key to select Output Config > Op. Mode/Coupling >
Operation Mode > Tracking.
Tracking mode allows real time voltage tracking across all channels or between
CH1 and CH2.
When tracking mode is enabled, list mode will still operate independently on
the channel that has list enabled. Tracking channels will not track the list
changes.
Figure 4.18 Tracking Mode
Output Configuration 45
Coupling
Enable or disable the output coupling between multiple output channels, by using the soft keys to toggle individual channel coupling On or Off.
Press the
button then use the soft key to select Output Config > Op. Mode/Coupling
If coupling is enabled,
will follow the coupling settings. Channel output On/Off buttons will also
follow the coupling settings if the correlated channel is coupled to another channel.
Example:
If CH1 and CH2 are coupled and the coupled CHs are on, CH3. It will turn off
CH1 and CH2.
will not turn on
However, if all channels are OFF
will turn all CHs ON.
If all CHs are ON
will turn all CHs OFF.
Figure 4.19 Parallel All Main Page
Output Sequencing
Output Configuration 46
Figure 4.20 Sequencing
Combine CH Coupling with Output On and Off Delay to toggle the outputs in a
set sequence. To configure a sequence: 1. Set voltage and current output of
the participating channels.
Reference section Setting Voltage and Current. 2. Synchronize output state by
coupling of all participating channels.
Reference section Coupling 3. Configure the turn on order of the outputs using
the On and Off Delay.
Reference section Output Timer
Begin the sequence by turning on any of the participating outputs.
List Mode
The 9140 and 9141 are capable of storing up to 10 programmable lists in the
internal memory. Each list can have up to 100 configurable steps.
List memory is shareable across all 3 channels, allowing the channels to run
the same list or different list simultaneously.
If all ten list numbers are taken, a list can also be saved to a USB. Lists
can be loaded from a USB, allowing for a larger collection of programmed
lists.
5.1 List Setup
Press the
button then use the soft key to select List Setup.
Use the softkeys to select one of the channels CH1, CH2, or CH3.
Figure 5.1 List Setup Use the softkeys to set the following parameters.
List State:
Toggle list state On/Off for the selected channel.
List Mode 48
List Number:
Select a list program from the memory to run on the channel. Use the numeric keypad or rotary knob to select list number.
Press
to assign the list to a channel.
Pace:
Set the pace in which steps are executed. a. Dwell: The next step outputs once
the dwell time elapsed. b. Trigger: After the dwell time elapsed, wait for a
trigger before outputting the next step.
Trigger Source
Set the trigger source.
a. Manual: Select to use a manual trigger. The Trigger softkey will be
available once List State is on and exit out of the menu to the main display.
Press it to manually trigger the list program. If the step dwell time has not
elapsed, then Trigger will not have a white background. When dwell time
elapses, Trigger background color will turn white to indicate the trigger is
ready.
Figure 5.2 Waiting for Trigger
List Mode 49 b. Digital IO: Select to use the digital I/O pins to receive a
trigger. To assign trigger input function to a
pin see 7.4.1. c. Remote: Select to receive a trigger from the remote
interface.
After List
Sets the voltage and current settings at the end of the list program.
a. DC: Returns to the last DC output voltage and current setting prior to
enabling list mode. b. Last: Retains the last step voltage and current setting
after the list program ends.
Note:
If the list is aborted, the output will return to the last set voltage and
current output values before the list began, even if After List is set to
Last.
5.2 Edit List
Press the
button then use the soft key to select List Setup > Edit List.
Use the softkeys to set the following parameters.
5.2.1 Load/Save List
List Mode 50
Save to USB
Save the selected list program to a USB.
Use the rotary knob to navigate through the file paths of the USB. Use the
button to expand folders.
Once the desired location has been found select Save by pressing the softkey furthest to the left.
Figure 5.3 Save to USB
Load from USB
Load a previously saved list from a USB to selected List Number.
List Mode 51
Use the rotary knob to navigate through the file paths of the USB. Use the
button to expand folders.
Once the desired location has been found select Load by pressing the softkey furthest to the left.
Figure 5.4 Load from USB
Note:
The list must be saved/overwritten at the selected list number location before
it is able to be assigned.
5.2.1 List Number
1. Select a list program from the internal memory. 2. Use the numeric keypad
or rotary knob to select a list (0 to 9). 3. Press
List Mode 52
5.2.2 Next
Set the next list program to run after the current list elapse. a. To make a
list run continuously and indefinitely, set Next to the same number as List
Number. b. To run different list sequences continuously, set Next to each
other.
Example Set Next on List 1 to 2. Set Next on List 2 to 1.
5.2.3 Repeat
To repeat a list, set Repeat using the numeric keypad or rotary knob and press
.
5.2.4 Steps
Add, delete, clear all, or edit steps.
Add Step
Use the softkeys to add a step to the list. The step added will be a
duplication of the step selected before pressing Add Step.
To select a step to duplicate, use the rotary knob to navigate the available
steps. If the list is new, only one default step will be available. Pressing
Add Step will duplicate the default step.
Figure 5.5 Default Step In New List
Delete Step
Delete the step selected before pressing Delete Step. Use the rotary knob to
navigate between each step.
Clear All
Clear all list parameters. See fig 5.5
Edit Step
Use the rotary knob to navigate the steps available.(select a row)
To edit parameters of the step, use the
keys.(selects a column)
See figure 5.6 for the parameter each row edits.
Press
to toggle enable/disable BOST and/or EOST.
List Mode 53
Figure 5.6 List Configuration
List Mode 54
Step Parameters
Voltage Sets Vset value. When setting Vset the list will not limit the voltage
range based on mode. Therefore, Vmax will be 96.960 for model 9140 and 180.800
for model 9141. To prevent a protection trip, verify the Vset and Iset values
in the list is within the range of the configured operation mode before
running the list.
Current Sets Iset value. When setting Iset the list will not limit the current
range based on mode. Therefore, Imax will be 24.240 for model 9140 and 12.120
for the 9141. To prevent a protection trip, verify the Vset and Iset values in
the list is within the range of the configured operation mode before running
the list.
BOST Press the knob or to enable/disable a trigger-out signal at the beginning
of the step (BOST).
EOST Press the knob or to enable/disable a trigger-out signal at the beginning
of the step (EOST).
Dwell Sets the dwell time of the selected step.
List Mode 55
5.3 List Run
List allows a sequence of outputs with up to 100 configurable steps. With
sharable memory across all three channels, a list can run simultaneously on
various channels. This allows for a list to be compatible in normal, parallel
or series mode.
Before running a list its parameters must be configured.
1. Configure the parameters of each step. See 5.2 2. Set the settings of the
channel which will output the list. See 5.1
a. Enable List State on desired channel. b. Assign a List Number to the
channel. c. Select Pace {Dwell or Trigger}. d. Select Trigger Source {Manual,
Digital IO, or Remote }. e. Select After List output {DC or Last}.
3. After configuring the list and channel parameters press
to return to the main page.
Vset will be replaced with List Start if List State was enabled.
Figure 5.7 List State Disabled 4. Select List start to start the list.
Once the list begins List Start will change to Abort List
List Mode 56
Figure 5.8 List State Enabled CH 1 The interaction with the list will vary depending on the chosen Pace. See 5.1 5. Select List Abort to end the list before all steps elapse. If the all steps elapse the list will end and the output will be set to chosen After List parameter. If After List is set to DC the output will output the Vset and Iset values. If After List is set to Last the output will output the values of the last step in the list.
Note:
While the list is running the user can adjust the current step output by setting Vset or Iset on the main display. Doing so will immediately change the value of the ongoing output. However, the set value will not be saved to the list. Once the dwell time of the step has elapsed the list will continue and output the next step.
If Trigger source is set to manual, Vset/Iset will not be available. The rotary knob and numeric keypad can be used to adjust the selected value. To adjust both Vset/Iset navigate to the single CH display of
the output using the
key.Vset/Iset will be available as shown in figure 5.9.
List Mode 57 Figure 5.9 Single Channel Display Vset/Iset
Data Logger
The data logger can record the output voltage, current, and error codes of all
three channels. Log data can be configured to record either Voltage only,
Current only, or both.
Connect a USB flash drive to the front panel USB port. Max. Recording time
will vary based on the flash drive size and the amount of the data being
logged.
Figure 6.1 Data Logger Max Time
6.1 Using the Data Logger Function
Press the
button then use the soft key to select Data logger. The Data Logger settings can be
selected in this menu.
Before starting the Data Logger its settings must be adjusted.
1. Set the desired Sampling Interval See 6.2.1
2. Select a File Path to determine where to store the collected data. see 6.2.2
3. Enable or disable T. Stamp Filename. See 6.2.3
4. Choose what data to record. See 6.2.4
5. Enable or disable Status Code. See 6.2.5
6. Select a Trigger Source. See 6.2.6
7. After setting all desired parameters press datalog Start/Stop to begin recording. Staring data log will vary based on chosen trigger. See6.2.7
6.2 Parameters
Data Logger 59
6.2.1 Sampling Interval
Press the
button then use the soft key to select Data logger > Sampling Interval.
Use the numeric keypad or rotary motor to select the sampling interval. Press value. (.2s to 300s)
to assign the selected
6.2.2 File Path
Press the
button then use the soft key to select Data logger > File Path.
Using the rotary knob and
navigate through the file path of the USB. Once the desired location
has been found select save by pressing the softkey furthest to the left.
Verify that the correct path was chosen in the Data Logger menu.
Figure 6.2 File Path Selected
6.2.3 T. Stamp Filename
Press the
button then use the soft key to select Data logger > T. Stamp Filename
Toggle to enable/disable time and date on the file name.
Example Enabled 9140_log_20201017002307 Disabled 9140_log
Data Logger 60
6.2.4 Log Data
Press the
button then use the soft key to select Data logger > Next Pg. > Log Data.
Select data to be logged. All: Record both voltage and current output of all channels. Voltage: Record the voltage output of all channels. Current: Record the current output of all channels.
Figure 6.3 Log Data All
The data is recorded in the following order:
CH1 Voltage CH1 Current CH2 Voltage CH2 Current CH3 Voltage CH3 Current Status
Code Table 6.1 Data Order
Note:
Data Logger 61 Data order will vary depending on Log Data selected.
6.2.5 Status Code
Press the
button then use the soft key to select Data logger > Status Code.
Toggle to enable/disable status code.
Enabled Status Code will record all codes reported. See 6.3 for an example. In figure 6.3 the code 0x0001 is returned. This indicates OVP has been triggered.
Table 6.2 defines each code.
Code
0x0001 0x0002
0x0004
0x0008
Description
Over Voltage Protection Triggered Over Current Protection Triggered
Over Temperature Protection Triggered Sense not connected
Table 6.2 Status Code
6.2.6 Trigger Source
Press the
button then use the soft key to select Data logger > Trigger Source.
Datalog can be triggered in three ways: Manual, Digital IO, and Remote.
· Manual: Select to use manual trigger. The trigger softkey will be available
as Datalog Start/Stop. See section 6.2.7
· Digital IO: Select to use the digital I/O pins to receive a trigger. To
assign a function to a pin see section7.4.1.
· Remote: Select to receive a trigger from a remote interface.
Data Logger 62
Note:
For Digital IO and Remote the first trigger will turn Data log on. A second trigger will begin data
recording.
will be displayed on the top right when data is being logged. See 6.2.7
6.2.7 Datalog Start/Stop
Press the
button then use the soft key to select Data logger > Datalog Start/Stop. Toggle to turn
datalog On/Off.
will be displayed on the top right when data logger is on but not recording. The command INIT:IMM:DLOG will turn on data logger. For Digital IO press Datalog Start/Stop to turn data logger on.
will be displayed on the top right when data logger is recording. The command TRIG:DLOG:IMM will begin the recording. For Digital IO an input high signal to the set pin will turn data logger on.
If Trigger Source is set to manual pressing Datalog Start/Stop will start/stop recording without a second signal.
Utilities Menu
Configure the settings in the following menus: · User Settings · Remote Interface · I/O Configuration · Test/Admin · Error Log · Help
7.1 User Settings
Press the
button then use the soft key to select Utilities > User Settings.
The system’s settings can be configured here.
7.1.1 Key Lock Output
Press the
button then use the soft key to select Utilities > User Settings > Key Lock Output.
Toggle to enable/disable the key lock. Enabling Key Lock Output changes the function of Key Lock. For more information see chapter 8 Default: OFF
7.1.2 Beep Sound
Press the
button then use the soft key to select Utilities > User Settings >Beep Sound.
Toggle to enable/disable the beeper sound. Default: ON
Utilities Menu 64
7.1.3 Date
Press the
button then use the soft key to select Utilities > User Settings >Date.
Use the number pad to set the date.
YY/MM/DD
7.1.4 Time
Press the
button then use the soft key to select Utilities > User Settings >Time.
Use the number pad to set the time. HH:MM:SS
7.1.5 Screen Intensity
Press the Intensity.
button then use the soft key to select Utilities > User Settings >Next Pg. > Screen
Use the rotary knob or number pad to set the screen brightness. Lowest 1 Highest 10
7.1.6 Language
Press the
button then use the soft key to select Utilities > User Settings >Next Pg. > Language.
Set the language for the On Screen Help guide. It does not change the language for the menus. For
more information about On Screen Help see section 7.8
Utilities Menu 65
7.2 Remote Interface
The 9140 series supports remote communication on up to three interfaces: USB, LAN, and GPIB (optional). While in remote mode the screen displays “RMT” in the upper right corner. Switching to remote mode does not impact the supply’s output parameters. In remote mode, front panel operation is disabled. Only the Local button is enabled. Revert to manual
mode by pressing the
key or by sending the command SYST:LOC.
The webserver remote interface requires the password BK to login.
Select and configure the following interfaces:
· USB
· LAN
· GPIB
Utilities Menu 66
7.2.1 USB Settings
Press the
button then use the soft key to select Utilities > I/O Config > USB Settings.
The USB device port is located in the rear-panel. See 1.8
The 9140 series are both USBTMC and USB VCP compliant.
In the USB Settings menu use the soft keys to select either: USBVCP USBTMC
Default: USBVCP
Figure 7.1 USB Details
The VISA Resource string gives USB0::
Example
From figure 7.1 :
When using USBVCP set the port setting to:
Utilities Menu 67
Figure 7.2 USB Port Settings
7.2.2 LAN
To configure the LAN Settings
Press the
button then use the soft key to select Utilities > I/O Config > LAN Settings.
The following settings are available in LAN Settings:
· IP Mode · IP Address · Subnet
Mask · Gateway IP · Primary
DNS · Hostname · LAN Reset · Restore
Default · LAN Status
Figure 7.3 LAN Settings
Utilities Menu 68
Note:
To access the webserver remote interface enter the default password bk.
IP Mode
Select Dynamic Host Configuration Protocol (DHCP) or Manual to set how the LAN settings will be configured.
Press the
button then use the soft key to select Utilities > I/O Config > LAN Settings > IP MODE.
The easiest way to configure the LAN settings is to set the IP Mode to DHCP.DHCP will automatically assign an IP address to the instrument.
The settings can manually be configured by selecting Manual.
IP Address
The IP Address is a unique string of numbers separated by periods. To enter an IP address:
Press the Address.
button then use the soft key to select Utilities > I/O Config > LAN Settings > IP
Use the numeric keypad to enter an IP address. Then
keys are used to separate each number in
the string. After inputting each number press
to set the address.
Subnet Mask
Subnet Mask divides the IP address into network address and host address.
To set Subnet Mask:
Press the
button then use the soft key to select Utilities > I/O Config > LAN Settings > Subnet
Mask.
Use the numeric keypad to enter the subnet mask. Then
keys are used to separate each number
in the string. After inputting each number press
to set the address.
Utilities Menu 69
Gateway IP
The gateway address is by default the IP address of the network device that
connects the instrument. If IP Mode is set to DHCP Gateway IP does not have to
be set. To set Gateway IP :
Press the IP.
button then use the soft key to select Utilities > I/O Config > LAN Settings > Gateway
Use the numeric keypad to enter an IP address. Then
keys are used to separate each number in
the string. After inputting each number press
to set the address.
Primary DNS
Domain Name Service (DNS) is the system that automatically translates Internet
addresses to the numeric machine addresses. The DNS address is the IP address
of the system that performs this service.
If IP Mode is set to DHCP DNS will automatically be set. To set the Primary
DNS :
Press the DNS .
button then use the soft key to select Utilities > I/O Config > LAN Settings > Primary
Use the numeric keypad to enter an IP address. Then
keys are used to separate each number in
the string. After inputting each number press
to set the address.
Hostname
Each instrument comes with a unique hostname that can be changed. The default
hostname has the following format:
BK-
Figure 7.3 shows the example:
BK-9141-20101
Utilities Menu 70
LAN Reset
LAN Reset resets all LAN settings and webpage passwords. The default webpage
password is bk.
To reset LAN :
Press the Reset .
button then use the soft key to select Utilities > I/O Config > LAN Settings > LAN
Before resetting a warning will display informing both LAN settings and webpages passwords will be reset.
Select Yes to finalize the reset.
Figure 7.4 Reset
Utilities Menu 71
Restore Default
Restore Default will set all LAN settings to their factory defaults.
To restore factory defaults:
Press the Default .
button then use the soft key to select Utilities > I/O Config > LAN Settings > Restore
Before restoring LAN settings to default the following warning will display.
Figure 7.5 Restore Factory Defaults Select Yes to set to factory default.
Utilities Menu 72
LAN Status
LAN Status provides an overview of the LAN settings.
To view the LAN status:
Press the
button then use the soft key to select Utilities > I/O Config > LAN Status .
Figure 7.6 LAN Status
Utilities Menu 73
7.3 GPIB (optional)
In GPIB the GPIB address can be changed from 01 to 30.
To change the GPIB address:
Press the
button then use the soft key to select Utilities > I/O Config > GPIB.
Figure 7.7 GPIB Address
Use the numeric keypad to enter the new address, then press the
key.
The rotary knob can also be used to set the address.
must be pressed to set the new address.
Utilities Menu 74
7.4 Digital I/O
To enter the Digital I/O menu:
Press the
button then use the soft key to select Utilities > I/O Config > Digital I/O.
Select the function and polarity of pins: 1, 2, and 3.
· Pin Functions
· Inhibit Mode
None
Digital In | Out Trigger In | Out
Off Latched Live
Fault Out/Inhibit In
Polarity Pos | Neg
Figure 7.8 Digital I/O Menu
Utilities Menu 75
7.4.1 Functions
Default: None
To configure a pin:
Press the
button then use the soft key to select Utilities > I/O Config > Digital I/O > Pin(#).
None
Set selected pin to have no function.
Digital In | Out
Toggle to select In/Out digital function.
Digital In: Receive a signal from external device. Digital Out: Send a signal
to external device.
The input voltage range for digital I/O pins is 0 V to 5 V. To prevent damage
to the instrument, do not exceed 5 V or supply a negative voltage to the
digital I/O pins.
Trigger In | Out
Toggle to select In/Out trigger function. Trigger In: Receives signal that
triggers set event. Trigger Out: Sent trigger signal when specified. (BOST or
EOST)
In List Mode, the Trigger In function can be used to trigger the next step
when Trigger Source is set to Digital IO. In Datalog, the Trigger In function
can be used to start/stop data logging when Trigger Source is set to Digital
IO. Trigger Out is only available for list mode, step BOST and EOST.
Utilities Menu 76
Fault Out
Enable a fault condition, which generates a protection fault signal on the
digital port. Different conditions such as over voltage, over current, or over
temperature will generate a fault event. The fault event will “disable” all
outputs without turning them off. The outputs are “disabled” by setting the
outputs as low as possible.
7.4.1 Polarity
Default: Positive Set polarity of selected pin.
Positive
A logic true signal is received as a voltage high.
Negative
A logic true signal is received as a voltage low.
7.4.1 Inhibit Mode
Receive an external input signal that controls the output state of all channels. Default: Off To set Inhibit Mode:
1. Assign the inhibit In function to pin 3 by:
Press the Inhibit In.
button then use the soft key to select Utilities > I/O Config > Digital I/O > Pin 3 >
2. Select Inhibit Mode: Press the Digital I/O > Inhibit Mode.
button then use the soft key to select Utilities > I/O Config >
3. Select one of the following modes:
Note:
The following modes are only available for pin 3.
Off
The inhibit input is ignored.
Utilities Menu 77
Latched
A logic-true transition signal will disable the power supply. The output will
remain disabled.
Live
Power supply output follows the state of the inhibit signal. If the inhibit
signal is true the output is disabled. When it is false the output is enabled.
7.5 Test/Admin
7.5.1 Self Test
Run a Module test.
Press the
button then use the soft key to select Utilities > Test/Admin > Self-Test > Start.
Figure 7.9 Self Test Complete
7.5.2 Security
The Security Settings are locked and can be accessed by entering the default
code 77416699.
Utilities Menu 78
Note:
Figure 7.10 Security Locked
The default password can be change in the Change Code menu. If the set code is forgotten contact B&K Precision customer support.
Use the password to gain access to the following settings. · Change Code · Calibrate · Firmware Update · NISPOM · Lock
Change Code
Changes the security code.
Utilities Menu 79
Press the Code.
button then use the soft key to select Utilities > Test/Admin > Security > Change
Calibrate
Enter calibration mode.
Press the
button then use the soft key to select Utilities > Test/Admin > Security > Calibrate .
See chapter Calibration Adjustment Procedure to adjust the units calibration.
Firmware Update
Update the firmware and module. Press the Test/Admin > Security > Firmware
Update .
button then use the soft key to select Utilities >
NISPOM
Select for complete memory wipe. Press the Test/Admin > Security > NISPOM .
button then use the soft key to select Utilities >
Lock
Sets security status to Lock. Press the > Security > Lock .
button then use the soft key to select Utilities > Test/Admin
If Done is selected without locking the security settings, the user will be prompted that the security settings will not be locked.
7.6 Error Log
View up to 50 previously set error codes.
Press the
button then use the soft key to select Utilities > Error Log.
Utilities Menu 80
Figure 7.11 Error Log
Errors are placed in the order that they were encountered. 1 being the most
recent. The error log displays up to 50 error codes. After reaching 50 error
codes no more codes will be reported in the error log. To continue filing
error codes the error log list must be cleared The error log can be saved into
a USB flash drive connected to the USB port on the front panel.
Save the log by:
Pressing the
button then use the soft key to select Utilities > Error Log > Save .
Use the rotary knob and the
button to navigate through the file path of the USB. Once the desired
location has been found select Save by pressing the softkey furthest to the left.
Clear the data log by:
Pressing the
button then use the soft key to select Utilities > Error Log > Clear All > Yes.
Code
0x0001 0x0002
0x0004
0x0008
Description
Over Voltage Protection Triggered Over Current Protection Triggered
Over Temperature Protection Triggered Sense not connected
Table 7.1 Status Code
7.7 Help
To enter the Help menu:
Press the
button then use the soft key to select Utilities > Help.
Utilities Menu 81
Figure 7.12 Help Menu
Use the rotary knob to navigate the help options shown in figure 7.12.
To select the Quick help topic press the
key or press the Select softkey.
System Info
To view the instrument’s general information:
Press the
button then use the soft key to select Utilities > Help > System Info.
Figure 7.13 System Info
Utilities Menu 82
7.8 On Screen Help
Press and hold any soft key that selects a menu branch for 3 seconds to
receive an explanation of what can be found in that branch.
Key Lock
Lock all front panel keys including
and
.
Press the
button then use press and hold the soft keys Key Lock for 3 seconds.
Figure 8.1 Key Lock
If Key Lock Output is enabled, holding Key Lock for 3 seconds locks all front panel keys except
and
. See section 7.1.1 to enable/disable Key Lock Output.
To unlock the front panel use the softkey to select Unlock.
Save/Recall
Save/Recall the instruments Output Settings and Power-On Settings.
9.1 Save the Output Settings
Save to Internal Memory
Save the instrument’s output settings to the internal memory. A total of 10 (0
to 9) output settings can be saved.
To save the output settings :
Press the
button then use the soft keys to select Save > Save to INT.
Using the numeric keypad enter a number from 0 to 9 to save the output settings to that address. The settings will be saved after a short delay.
Figure 9.1 Save to Internal Storage
Save to USB
Save the instrument’s output settings to a USB flash drive connected to the
front panel USB host port.
Press the
button then use the soft keys to select Save > Save to USB.
Using the rotary knob navigate through the file paths of the USB. Use the Once the desired location has been found press Save. The output settings will be saved after a short delay.
Save/Recall 85 button to expand folders.
Figure 9.2 Save to USB
9.2 Recall the Instrument’s Settings
Recall previously saved output settings from the internal memory. A total of
10 (0 to 9) user settings can be saved.
To recall settings :
Press the
button then use the soft keys to select Recall > Recall from INT.
Use the numeric keypad to enter a number from 0 to 9 to recall the output settings stored in that address. The settings will be recalled after a short delay.
Recall from USB
Recall the instrument’s output settings from a USB drive.
Press the
button then use the soft keys to select Recall > Recall from USB.
Use the rotary knob to navigate through the file paths of the USB. Use the Once the desired location has been found press Load. The settings will be recalled after a short delay.
button to expand folders.
Save/Recall 86
Figure 9.3 Recall from Internal Memory
Figure 9.4 Recall from USB
9.3 Power-On Settings
Load previously saved output parameters on power-on.
Off
To turn off Power-On Mode:
Press the
button then use the soft keys to select Power-On Settings > Power- On Mode > Off.
Last
To set the output parameters to the previous parameters before powering-off
the instrument: Press the
Save/Recall 87
button then use the soft keys to select Power-On Settings > Power- On Mode > Last.
User
To set the output parameters previously saved parameters:
· Press the User.
button then use the soft keys to select Power-On Settings > Power- On Mode >
· Press the
button then use the soft keys to select Power-On Settings > User Settings.
· Use the numeric keypad or the rotary knob to assign an address (0 to 9). To save settings see 9.1.
Default Values and Ranges
Set the instrument’s output settings to default.
Press the
button then use the soft keys to select Set to Default.
9.4 Screenshot
To take a screenshot:
Press
together for 3+seconds until you hear a beep.
A USB must be plugged in for this function.
Save/Recall 88
Parameter
VSET ISET Vmax Vmin Vslew Islew OVP Limit OCP Limit Timer On Delay Off Delay
Datalogger Sampling Interval List Dwell List Voltage List Current List Repeat
Default 0 1
32.32 0
1600 500 35.2 8.8
0 0 0
9140
Max 32.32 8.08 32.32 32.32 3200 800 35.2 8.800 99:59:59 3600 3600
Min 0
.015 0 0
0.001 1 0
0.015 0 0 0
Default 0 1
60.6 0
600 100 66 4.4
0 0 0
9141
Max 60.6 4.04 60.6 60.6 3000 200 66 4.4 99:59:59 3600 3600
0.2
300
0.200
0.2
300
0.1
9999
0.1
1
96.96
0
.015
24.24
.015
0
100000
0
0.1
9999
1
181.8
.015
12.12
0
100000
Table 9.1 Default Values & Ranges
Min 0
.015 0 0
0.001 1
0.000 0.015
0 0 0
Unit
V A V V V/s A/s V A HH:MM:SS Sec Sec
0.2
Sec
0.1
Sec
0
V
.015
A
0
Calibration Adjustment Procedure
Calibration Interval
The recommended calibration interval for the 9140 series is one year.
To enter the Calibration Menu:
Press the
button, then use the soft key to select Utilities > Test/Admin > Security > Calibrate.
In the Calibration Menu use the softkeys to select a parameter from the menu to calibrate. · Voltage · Current · OVP · OCP · RTC
Figure 10.1 Calibration Parameters
Calibration Adjustment Procedure 90
10.1 Voltage Calibration Adjustment
For the voltage calibration procedure a precise DMM will be needed.
To adjust the voltage calibration: 1. Enter the Calibration Menu
· Press the
button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the security menu.
2. Use the softkeys to select Voltage > CH {1 |2 |3}.
3. Verify the correct channel is chosen.
· The upper left corner will display the chosen channel. Voltage Calibration will have a frame with the color corresponding to the chosen channel.
Yellow = CH 1
Blue = CH 2
Orange = CH 3
4. Connect the DMM’s voltage input to the power supply’s binding post corresponding to the selected channel.
5. Use the softkey to select Start.
6. Use the numeric keypad to enter the measured voltage. Press the
button to configure the point.
7. Repeat step 6 for the remaining calibration points.
Upon entering the last calibration point value the display will return to the channel selection screen.
8. Repeat steps 2 through 7 to calibrate the remaining channels.
Calibration Adjustment Procedure 91
10.2 Current Calibration Adjustment
For the current calibration procedure a precise DMM will be needed.
To adjust the current calibration: 1. Enter the Calibration Menu
· Press the
button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the security menu.
2. Use the softkeys to select Current > CH {1 |2 |3}.
3. Verify the correct channel is chosen.
· The upper left corner will display the chosen channel. Current Calibration will have a frame with the color corresponding to the chosen channel.
Yellow = CH 1
Blue = CH 2
Orange = CH 3
4. Connect the DMM current input to the power supply’s binding post corresponding to the selected channel.
Note:
Upon entering a calibration point the unit will immediately output the next current point. To avoid blowing the DMM’s fuse ensure the correct DMM’s input is chosen.
The points’ output are as follows:
9140 1st Point 0.4 A 2nd Point 2.8 A 3rd Point 5.5 A 4th Point 8.0 A
9141 1st Point 0.2 A 2nd Point 1.4 A 3rd Point 2.7 A 4th Point 4.0 A
Calibration Adjustment Procedure 92
5. Use the softkey to select Start.
6. Use the numeric keypad to enter the measured current. Press the
button to configure the point.
7. Repeat step 6 for the remaining calibration points.
Upon entering the last calibration point value the display will return to the channel selection screen.
8. Repeat steps 2 through 7 to calibrate the remaining channels.
10.3 OVP Calibration Adjustment
For the over voltage protection calibration the instrument’s voltage must be
calibrated.
To adjust the OVP calibration: 1. Enter the Calibration Menu
· Press the
button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the security menu.
2. Use the softkeys to select OVP > CH {1 |2 |3}.
3. Verify the correct channel is chosen.
· The upper left corner will display the chosen channel. OVP Calibration will have a frame with the color corresponding to the chosen channel.
Yellow = CH 1
Blue = CH 2
Orange = CH 3
4. Connect the DMM’s voltage input to the power supply’s binding post corresponding to the selected channel.
5. Use the softkey to select Start.
6. Calibration State will show as Busy. After a few seconds the calibration will be adjusted on its own.
7. Upon successfully completing the calibration adjustment a different channel can be selected.
8. Repeat steps 2 through 6 to calibrate the remaining channels.
Calibration Adjustment Procedure 93
10.4 OCP Calibration Adjustment
For the over current protection calibration the instrument’s current must be
calibrated.
To adjust the OCP calibration: 1. Enter the Calibration Menu
· Press the
button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the security menu.
2. Use the softkeys to select OCP > CH {1 |2 |3}.
3. Verify the correct channel is chosen.
· The upper left corner will display the chosen channel. OCP Calibration will have a frame with the color corresponding to the chosen channel.
Yellow = CH 1
Blue = CH 2
Orange = CH 3
4. Connect the DMM’s 10 A input to the power supply’s binding post corresponding to the selected channel.
5. Use the softkey to select Start.
6. Calibration State will show as Busy. After a few seconds the calibration will be adjusted on its own.
7. Upon successfully completing the calibration adjustment a different channel can be selected.
8. Repeat steps 2 through 6 to calibrate the remaining channels.
Calibration Adjustment Procedure 94
10.5 RTC Calibration Adjustment
To adjust the Real-Time Clock(RTC) calibration: 1. Enter the Calibration Menu
· Press the
button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the security menu.
2. Use the softkeys to select RTC.
3. Use the softkey to select Start.
4. Calibration State will show as Busy. The calibration will be adjusted on its own in about 4 to 5 mins.
5. Calibration State will show as Success once the calibration has finished.
Performance Verification
Performance verification ensures the instrument will meet specifications
listed in the datasheet. Load regulation can be tested for both the front and
rear outputs.
Note:
All specifications apply to the unit after a temperature stabilization time of
15 minutes over an ambient temperature range of 23 °C ± 5 °C. Specifications
are valid for single unit operation only.
CV Load Regulation Front Panel Output
1. Turn off the power supply before making any connections. 2. Connect the:
DMM, electronic load, and the rear panel remote sense to the power supply’s
terminal
being tested. (Remote sense must correspond with the channel being tested.)
Figure 11.1 Front Panel Wiring Diagram
Performance Verification 96
Note:
Keep all cables as short as possible.
3. Turn on the power supply. 4. Set the power supply settings of the channel
being tested to the values given in table 11.1. 5. Set the electronic load
settings to the stated values in table 11.1. 6. Enable remote sense. See
section Remote Sense. 7. Enable the channel output. 8. Enable the electronic
load. Monitor the power supply to ensure it remains in CV mode.If the power
supply switches to CC slightly lower the current on the electronic load until
the power supply return to CV mode. 9. Give the power supply some time to
settle and record the DMM reading as V load. 10. Disable the electronic load
and record the DMM reading as V noload. 11. Take the difference between V load
and V noload (V load – V noload) and record the value as the voltage
regulation. The difference should be within the specification limit.
CV Load Regulation Rear Panel Output
1. Turn off the power supply before making any connections. 2. Connect the:
DMM, electronic load, and the rear panel remote sense to the power supply’s
rear +/-
terminal being tested.Use jumpers to connect the +S to + and -S to -. See
figure 11.2 (Remote sense must correspond with the channel being tested.) 3.
Turn on the power supply. 4. Set the power supply settings of the channel
being tested to the values given in table 11.1. 5. Set the electronic load
settings to the stated values in table 11.1. 6. Enable remote sense. See
section Remote Sense. 7. Enable the channel output.
Performance Verification 97
Figure 11.2 Rear Panel Wiring Diagram
8. Enable the electronic load. Monitor the power supply to ensure it remains in CV mode.If the power supply switches to CC slightly lower the current on the electronic load until the power supply return to CV mode.
9. Give the power supply some time to settle and record the DMM reading as V load.
10. Disable the electronic load and record the DMM reading as V noload.
11. Take the difference between V load and V noload (V load – V noload) and record the value as the voltage regulation. The difference should be within the specification limit.
Model
9140 9141
Power Supply Settings
Voltage
Current
Remote
32.000 V
3.069 A
ESneanbsleed
60.000 V
1.666 A
Enabled
Electronic MoLdoead SettiCnugrsrent
CC
3.065 A
CC
1.650 A
Table 11.1
Load Regulation Limit
Lower Limit Upper Limit
– 6.2 mV
+ 6.2 mV
– 9 mV
+ 9 mV
Specifications
Service Information
Warranty Service: Please go to the support and service section on our website
at bkprecision.com to obtain an RMA #. Return the product in the original
packaging with proof of purchase to the address below. Clearly state on the
RMA the performance problem and return any leads, probes, connectors
and accessories that you are using with the device.
Non-Warranty Service: Please go to the support and service section on our
website at bkprecision.com to obtain an RMA #. Return the product in the
original packaging to the address below. Clearly state on the RMA the
performance problem and return any leads, probes, connectors and accessories
that you are using with the device. Customers not on an open account must
include payment in the form of a money order or credit card. For the most
current repair charges please refer
to the service and support section on our website. Return all merchandise to
B&K Precision Corp. with prepaid shipping. The flat-rate repair charge for
Non-Warranty Service does not include return shipping. Return shipping to
locations in North America
is included for Warranty Service. For overnight shipments and non-North
American shipping fees please contact B&K Precision Corp.
Include with the returned instrument your complete return shipping address,
contact name, phone number and description of problem. B&K Precision Corp.
22820 Savi Ranch Parkway Yorba Linda, CA 92887 bkprecision.com
714-921-9095
LIMITED THREE-YEAR WARRANTY
B&K Precision Corp. warrants to the original purchaser that its products and
the component parts thereof, will be free from defects in workmanship and
materials for a period of three years from date of
purchase. B&K Precision Corp. will, without charge, repair or replace, at its
option, defective product or component parts. Returned product must be
accompanied by proof of the purchase date in the form of
a sales receipt. To help us better serve you, please complete the warranty
registration for your new instrument via our
website www.bkprecision.com Exclusions: This warranty does not apply in the
event of misuse or abuse of the product or as
a result of unauthorized alterations or repairs. The warranty is void if the
serial number is altered, defaced or removed.
B&K Precision Corp. shall not be liable for any consequential damages,
including without limitation damages resulting from loss of use. Some states
do not allow limitations of incidental or consequential
damages. So the above limitation or exclusion may not apply to you. This
warranty gives you specific rights and you may have other rights, which vary
from state-to-state.
B&K Precision Corp. 22820 Savi Ranch Parkway
Yorba Linda, CA 92887 www.bkprecision.com
714-921-9095
LIMITED THREE-YEAR WARRANTY 101 Version: May 19, 2022
References
- B&K Precision Corporation
- Clínicas de Reproducción asistida - Tratamientos de fertilidad - IVI
- B&K Precision Corporation