B K S PRECISION DAS240 Series Portable Data Recorders User Manual
- June 13, 2024
- B K S PRECISION
Table of Contents
DAS240 Series Portable Data Recorders
Product Information
The product is an instrument designed for measurement purposes.
It is important to follow the safety precautions outlined in the
user manual during all phases of operation, service, and repair of
the instrument. The instrument is categorized according to the IEC
61010 standard safety category ratings.
-
Category I (CAT I): Measurement instruments not intended to be
connected to the mains supply. Voltages in the environment are
typically derived from a limited-energy transformer or a
battery. -
Category II (CAT II): Measurement instruments meant to be
connected to the mains supply at a standard wall outlet or similar
sources. Example measurement environments include portable tools
and household appliances. -
Category III (CAT III): Measurement instruments meant to be
connected to the mains installation of a building. Examples include
measurements inside a building’s circuit breaker panel or the
wiring of permanently-installed motors. -
Category IV (CAT IV): Measurement instruments meant to be
connected to the primary power entering a building or other outdoor
wiring.
It is crucial not to use this instrument in an electrical
environment with a higher category rating than specified in the
manual. Additionally, it is important to ensure that each accessory
used with the 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 may lower the category rating of
the measuring system.
Product Usage Instructions
-
1. **Electrical Power:**
This instrument is intended to be powered from a CATEGORY II
mains power environment. Ensure that the mains power is either 115
V RMS or 230 V RMS. Only use the power cord supplied with the
instrument and make sure it is appropriate for your country of
use.
-
1. **Ground the Instrument:**
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 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
properly-grounded approved outlet and the recommended
three-conductor AC line power cable may result in injury or
death.
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 the instrument in an
explosive or flammable atmosphere.
1
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.
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.
2
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 properly-grounded approved outlet
and the recommended three-conductor AC line power cable may result in injury
or death.
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 non-
office-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.
3
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 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 voltage-sensing 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 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
2
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.
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
This is the In position of the power switch when instrument is ON. This is the Out position of the power switch when instrument is OFF. is used to address practices not related to physical injury.
Contents
1 Introduction
6
1.1 Electrical Connections
6
1.2 DAS240-BAT Extension Module
6
1.3 Home screen
8
1.4 Recording Period
8
1.4.1 Example: Recording 9 Channels
9
1.4.2 Example: Power-Line, engine noise, or other electrical noise.
9
2 Setup
10
2.1 Switching On
10
2.1.1 Switching Off
10
2.1.2 In Case of Error
11
2.2 Extension Modules (DAS240-BAT only)
11
2.3 External Power
12
2.4 Battery
12
2.4.1 To Ensure Long Battery Life
12
2.4.2 To Charge the Battery
13
2.5 Calibration
13
2.5.1 Factory Default Calibration
13
2.6 Keypad Lock
14
2.7 System Setup
14
2.8 Language
14
2.9 Screen Shut Off (Dimming)
15
2.10 VNC
15
2.11 Additional Options
15
2.12 Firmware Update
15
2.13 Instrument Configuration Loading and Saving
15
2.14 Network
15
2.15 Alarms
16
3 Channel Setup
17
3.1 All Channels Screen
17
3.2 Individual Channel Screen
17
3.3 Extension Modules (DAS240-BAT only)
17
3.4 Measurement Connections
18
3.4.1 Voltage Measurement
18
3.4.2 Temperature Measurement With a Thermocouple
19
3.4.3 Temperature Measurement With Pt100/Pt1000 and RTD
19
3.4.4 Resistance Measurement
19
3.4.5 Current Measurement
20
4 F(t) Plot
22
4.1 Screen Setup
22
4.1.1 Custom Pages
23
4.2 Freeze Screen and Cursor Measurements
23
4.3 Time Base
24
4.4 Math
24
4.4.1 Math Functions
25
5 XY Plot
29
6 Numeric Display
31
4
7 Recording
32
7.1 Create a Recording
32
7.2 View Recording
32
7.2.1 Loading a Recording
32
8 Triggering Recordings
35
8.1 Waiting Start Condition
35
8.2 Recordings
35
8.3 Triggering
36
8.3.1 Single Analog Channel Trigger
36
8.3.2 Single Threshold
37
8.3.3 Multiple Thresholds
38
8.3.4 Trigger Examples
39
8.4 Trigger on Logic Channels
39
9 Alarms
40
9.1 Alarm Status
40
9.2 Analog/Math/Timing Signal Alarm
41
9.3 Analog Signal Combination Alarm
41
9.4 Logic (Digital) Signal Alarm Trigger
42
9.5 Alarm on Recording Start (Trigger Acquisition)
43
10 Logic Channels
44
10.1 Logic Input Connector
44
10.2 Logic Channel Setup
44
10.3 Timing
45
10.4 Alarm Outputs
45
11 File Management
47
11.1
Note:
47
11.1 Setup Files
47
11.1.1 Default
48
11.1.2 Save Setup Files
48
11.1.3 Load Setup Files
48
11.2 Recordings Files
48
12 Remote Interfaces
49
12.1 LAN Interface
49
12.1.1 LAN Setup
49
12.2 VNC
49
12.2.1 Changing the Password
49
12.3 Network File Transfer
49
12.4 Viewing with SeframViewer
50
12.4.1 Example
51
12.5 Device Control with DASLab
52
12.6 Modbus (slave)
53
12.6.1 Setup Modbus Slave
53
12.6.2 Mapping Modbus TCP
53
12.6.2.1 Analog Data
53
12.6.2.2 Logical Data
53
13 Maintenance
55
13.1 Updating the Internal Software
55
14 Specifications
56
15
57
16
57
5
17 Thermocouple Measurement Accuracy
57
17.1 J Type Thermocouple Example
57
17.2 Measurement Accuracy: Pm
57
17.3 Voltage of Thermocouple (mV)
57
17.3.1 Example of Accuracy Calculation
58
17.4 Accuracy Class – Class Index
58
17.5 Grounding
58
18 LIMITED TWO-YEAR WARRANTY
60
19 Service Information
61
Introduction
DAS240-BAT
Figure 1.1 Front View
DAS220-BAT
The DAS240-BAT and DAS220-BAT programmable recorders can measure measure voltage, current, temperature (thermocouple, Pt100, Pt1000), resistances, and logic channels. Highlights include:
· An intuitive interface on a wide capacitive and color 10″ touchscreen
· 32GB internal memory for storing recordings
· Composed of a main base frame and extension modules of 20 channels each
· Programmable via Ethernet using NTP, FTP and VNC protocols
· Built-in battery with capacity to run the recorder for hours
Model
Channels
DAS240-BAT 20-200 using expansion blocks
DAS220-BAT 10
Table 1.1 Channel Options
1.1 Electrical Connections
Connection to the recorders uses modular connectors shown in Figure 1.2 and
Figure 1.3.
1.2 DAS240-BAT Extension Module
Signals are connected to the unit via terminal blocks, see Figure 1.4. These
blocks accommodate 20 connections each and may be chained together to provide
more channels.
Introduction
7
Item Description 1 Power Connector 2 Charging LED 3 ON/OFF Switch 4 USB
Connectors 5 LAN Interface 6 Logic and Alarm Signals 7 Ground 8 Expansion
Module
Figure 1.2 DAS240-BAT Electrical Connections
Item Description 1 Channel Inputs 2 Power Connector 3 Charging LED 4 ON/OFF
Switch 5 USB Connectors 6 LAN Interface 7 Logic and Alarm Signals 8 Ground
Figure 1.3 DAS220-BAT Electrical Connections
Introduction
8
Figure 1.4 Terminal Block and Cable
1.3 Home screen
The home screen provides access to the various functions and settings of the
unit. Access this menu via the “Home” button in the top right corner of the
screen.
Figure 1.5 Home Screen
Item Description 1 Setup Menu 2 Trigger Menu 3 Logic Channel Config Menu 4 XY Display 5 F(t) Display 6 Numeric Display 7 Channel Setup Menu 8 Channel and Function Display Config 9 Recording Display 10 Recording Replay Screen 11 Channel Configuration Screen
1.4 Recording Period
The acquisition sample rate is configurable. The unit samples one channel at a
time. The sample period defines the time a sample consumes.
Note: Each channel is sampled in sequence. The effect is that the rate at
which a channel is sampled depends on the number of channels and the sample
period of each channel. See Section 1.4.1
Introduction
9
The sample period is set to one of the following settings: 1, 2, 5, 10, 20, 50 and 100ms. When 3-wire thermocouple measurements (Pt100 and Pt1000) are made, the time periods are doubled. The doubled time periods are highlighted in the channel setup dialog with a “(x2)” beside the period. Also, by using a configurable low-pass filter per channel, measurements can be made filtering out higher frequency components.
1.4.1 Example: Recording 9 Channels
For example, if 9 channels are sampled, and the settings for each channel
sample period are [50, 50, 20, 20, 20, 20, 10, 10, 5] ms each, the total time
for an acquisition is 200 ms. Consequently, the minimum recording period, the
time between samples of an individual channel, is 200 ms. See Figure 1.6.
10ms 5ms
End
CH7 10ms
Ch6 20ms
CH5 20ms
CH4 20ms
CH3 20ms
CH2 50ms
Start CH1 50ms
CH8 CH9
Total Time = 200 ms Figure 1.6 9ch Ex.
1.4.2 Example: Power-Line, engine noise, or other electrical noise. For white
noise or noise with lower frequency (lower than recording frequency), you can
choose a software filter.
Setup
2.1 Switching On
Prior to powering ON the unit, connect the extension modules1 (DAS240-BAT).
Turn on the recorder by pressing the button at the top. When the recorder is
on, the ON/OFF button will illuminate, and displays a startup screen showing
the hardware version. It then switches automatically to “F(t)” mode. This
display is accessible from the “Home” menu, Figure 2.1, by pressing the “F(t)”
key.
Figure 2.1 Home Screen On power-up, the unit recalls the last settings and
configurations used. 2.1.1 Switching Off To switch off the recorder, press the
ON/OFF button. A dialog box appears prompting the user to confirm powering off
the unit. Select the green check mark to proceed. The dialog disappears if
either the red “X” is pressed or the 10 s countdown expires. Before the unit
turns off, the setup will be saved and the current file will be closed.
Figure 2.2 On Off Dialog
1 If there are no modules connected or detected, the will display “Error:Ti”
in the lower right-hand corner of the startup screen
Setup
11
If the recorder does not switch off correctly, then press the ON/OFF button for 5 seconds. Configurations and setup values may not be saved in this case. This is also true if the unit loses power.
2.1.2 In Case of Error
· If the unit still starts normally: reinitialize to default settings. From
the main menu open the “Setup” menu, then click on “Default setup” key. See
Section 2.7.
· Alternatively, the unit can be reset to factory defaults.
With the unit power off, press the power button to turn the unit on.
While the unit is booting up, quickly and repeatedly press power button
until the display shows a white startup screen. A setup_error.cnf file will be
created in the root folder of the internal memory.
The unit resets to defaults and reverts to French.
To change the language back to English, press “Menu Principal”, then
“Configuration”, then press the French flag and select the British flag for
English.
Note: If errors persist, please contact B&K Precision for further assistance.
2.2 Extension Modules (DAS240-BAT only)
Up to 10 extension modules may be connected at a time.
Figure 2.3 Extension Modules To assemble multiple terminal block modules: · Screw the electrical connectors’ plate to each additional extension · Assemble the extension modules together · Screw the plates with the adjacent modules · Stick the additional adhesive buttress · Connect the cable using unlocking levers · Connect the cable on the DAS240-BAT (must be powered off first) · Switch on the unit.
Setup
12
Figure 2.4 Breakout Cable and Module Note: The unit is delivered with a 70 cm
cable.
2.3 External Power
The DAS240-BAT and DAS220-BAT recorders are powered and charged using a 15V
DC, 5A power supply. Warning: To minimize the risk of shock, 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 a three-
conductor electrical outlet. Warning: When the charger is connected to the
unit, the chassis is connected to the power supply earth ground.
2.4 Battery
The unit is equipped with a lithium-ion battery. If the unit has remained
unused for more than one month, check its charge status and recharge it if
necessary. For continued safe use: · Never heat up or expose the battery pack
to fire · Never short the battery: there is a risk of explosion! · Do not
puncture the battery. · Do not dismantle the battery pack. · Do not reverse
the polarities of the battery. · This battery pack includes protection that
should not be damaged or removed. · Do not store the pack in a place exposed
to excessive heat. · Do not damage the protective sheath of the pack. · Do not
store inside a vehicle exposed to the sun. The battery should last at least
200 full charge-discharge cycles or 2 years.
2.4.1 To Ensure Long Battery Life
· Do not store for a long time without use. · Store the battery at around 40%
charge. · Do not fully charge or discharge the battery before storage.
Setup
13
When the battery is nearly discharged, the unit closes all open files, stops the software, and will shut off automatically.
2.4.2 To Charge the Battery
· Connect the provided external AC adapter to the power input of the unit. ·
Connect the AC adapter to a electrical outlet. · The green LED will light when
the battery is charging and will turn off when charging is complete. ·
Charging can be done with the unit turned on or off. Note: Battery replacement
and service should be performed by B&K Precision. Contact us for details.
2.5 Calibration
The recorder inputs for the voltage and thermocouple offsets can be
calibrated. This will remove any offset present on different channels.
Figure 2.5 Offset Calibration Screen 1. Let the unit warm up for 20 minutes at
ambient temperature 68-77F (20-25C). 2. Enter the recorder main page and then
press the “Setup” key. 3. Select the “Additional Option” menu. 4. Select the
“Electric Calibration” menu. 5. Press the “Calibration offset” to start
calibration. This takes approximately 5 minutes. 6. Power cycle the unit.
2.5.1 Factory Default Calibration The default factory calibration can be
restored to correct any possible mistake in the calibration coefficients. This
restores calibration values configured at the factory. This is performed as
follows:
Setup
14
1. Let the unit warm up for 20 minutes at ambient temperature 68-77F (20-25C). 2. Enter the recorder main page and then press the “Setup” key. 3. Select the “Additional Option” menu. 4. Select the “Electric Calibration” menu. 5. Press the “Recover factory calibration”. 6. Power cycle the unit.
2.6 Keypad Lock
To lock all keys: · Press the “Setup” key. · Press the “Additional Option”
key. · Press the “Locking the recorder” key. · Press the green check mark to
confirm and lock the unit. The keypad lock will occur 10 seconds after
confirmation. A yellow padlock appears in the upper right corner of the
display when locked. To unlock the recorder, press the lock icon in the upper
right corner repeatedly.
2.7 System Setup
The Setup Menu provides access to general setup of the instrument, monitoring of the alarm outputs, network address TCP/IP, calibration of the channels, and software (firmware) updating. The setup menu is shown in Figure 2.6.
Figure 2.6 Setup Menu
Button Description
1
Language
2
Screen dimming time
3
Date and time setup
4
VNC setup
5
Additional settings
6
Update
7
Load default settings
8
Load configuration from disk
9
Save configuration to disk
10 Network status and setup
11 Alarms
12 Channels
2.8 Language
The system language can be set to one of the following: French, Spanish,
English, Italian, German, and Swedish. Open the language dialog by pressing
the flag icon on the setup screen (Home>Setup). Then select the flag icon that
correlates to the language, Figure 2.7.
Setup
15
Figure 2.7 System Languages
2.9 Screen Shut Off (Dimming)
The amount of time the screen back-light stays at full brightness may be set
from 1-30 mins or (disabled). Use the arrow keys to change the screen shut off
timeout.
2.10 VNC
VNC (Virtual Network Computing) allows the user to mirror the front panel
using a viewer on a networked computer. This button is for setting the
password. See Section 12.2 for more details.
2.11 Additional Options
Setting the screen brightness, locking the screen, calibrating the machine,
setting the start-up screen image and settings for the Modbus server are
available in this menu. See Section 2.5 for calibration information, and see
Section 2.6 for screen lock information.
2.12 Firmware Update
See Chapter 13 for details about updating the firmware.
2.13 Instrument Configuration Loading and Saving
Settings like the F(t) time/division and channels to display may be saved and
recalled by the instrument. Also, a default set of settings may also be
loaded. These can be configured with the 3 buttons in the “Setup” box of the
setup display window (home>setup).
2.14 Network
The current IP addresses of the network is shown within the network button. If
there is no network connection, 0.0.0.0 is shown.
Setup
16
Figure 2.8 Network Configuration Dialog Pressing the button opens the network
configuration dialog. Available options are shown in this window depending on
the hardware connected. DHCP, IP Address, Subnet Mask, and Gateway IP can be
configured here.
2.15 Alarms
See Chapter 9 for details.
Channel Setup
3.1 All Channels Screen
Access the channel setup menu from the Home screen and press the “Channels”
button. The screen shown in Figure 3.1 appears.
Figure 3.1 Channels Menu The channel configuration screen provides quick
access to individual channel settings. Each column lists a set of values for
each channel. The parameter available is listed in the left and right most
columns. Pressing the box corresponding to the channel and parameter opens a
dialog box with options for configuring that parameter. The contents of the
dialog change depending on the selected parameter value. For example, when the
channel type parameter is opened, selecting the Thermocouple value modifies
the box to give further options for thermocouples (type, temperature units,
etc…). Back on the main channel table, the value in the box shows a summary
version of the parameter’s configured value. In the upper right and left
corners of the table are navigation arrows for showing more sets of channels.
10 channels may be shown on screen at a time.
3.2 Individual Channel Screen
The complete set of parameters, values and options are also viewable for a
single channel on a single screen. To open this screen, press the box
displaying the Channel ID (A1 for example). This opens a window for setting a
greater number of values than available from the channels table. For example,
the plot color and thickness can be set here. See Figure 3.2.
3.3 Extension Modules (DAS240-BAT only)
Up to 10 extension modules may be connected at a time. To assemble multiple
terminal block modules: · Screw the electrical connectors’ plate to each
additional extension · Assemble the extension modules together · Screw the
plates with the adjacent modules · Stick the additional adhesive buttress
Channel Setup
18
Figure 3.2 Channel Configuration Screen
Figure 3.3 Extension Modules · Connect the cable using unlocking levers ·
Connect the cable on the DAS240-BAT (must be powered off first) · Switch on
the unit. Note: The unit is delivered with a 70 cm cable.
3.4 Measurement Connections
Using the terminal blocks provided with the unit. Figure 3.5. (Phoenix
Contacts: SMSTB 2,5/3-ST5,08 – 1826296) 3.4.1 Voltage Measurement Voltage
measurement is performed between the + and – terminals of the inputs. The
“GND” terminal is not used.
Channel Setup
19
Figure 3.4 Breakout Cable and Module
Figure 3.5 Terminal Blocks 3.4.2 Temperature Measurement With a Thermocouple
The voltage resulting from thermocouple is measured between the + and –
terminals of the relevant input. The “GND” terminal is not used. Errors in
reading temperature can be caused by reverse connection of the thermocouple
wires.
3.4.3 Temperature Measurement With Pt100/Pt1000 and RTD The Pt100/Pt1000 probe
must be connected to the + and – terminals. The current injects into the “GND”
terminal. For a 4 wire Pt100/Pt1000, only 3 wires are used.
Note: the “gnd” current injection is shared by all channels.
Figure 3.6 shows 2 ways to wire the temperature sensors. Using the 2-wire
method, the “-” and “GND” terminals are connected together at the terminal
block. For 3-wire, the ground connects at the measurement point.
2 Wire
3 Wire
Figure 3.6 Terminal Block Wiring
3.4.4 Resistance Measurement
Connect the resistance to measure between the “+” and “-” terminals and
connect the “-” and “GND” terminals together. For best resolution and
accuracy, configure the resistance display range appropriately for the
expected value. For example,
Channel Setup
20
set the on screen range close to the expected measurement value. Based on the range chosen, the unit determines the sense current and voltage range to use for measurement.
3.4.5 Current Measurement
The recorder includes the option to convert sensed voltage across a shunt or
sense resistor into a current reading. From the “Home” screen, open the
“Channels” menu. The “Type” row shows the current function per channel. Press
the square in the “channel” column and “Type” row to open the configuration
dialog for the function type. See figure 3.7. Select the “Current” menu
option. The window will change to show a button listing the current shunt
value. To change the value, press the button and a dialog for setting the
shunt value will open. See Figure 3.8. Set the value and unit and press the
green check mark to confirm the setting and the screen will return to the
previous menu. To wire the circuit for current measurement, connect the “+”
and “-” terminals to the current shunt. Also, set the current range in the
“Channels” window appropriately. Use either an external resistance or a shunt
(ref 902406500: 50 Figure 3.9).
Figure 3.7 Channel Function Type
Channel Setup
21
Figure 3.8 Current Shunt Value Setup Figure 3.9 50 Shunt Module
F(t) Plot
This mode displays the channel signals versus time, much like an oscilloscope. The time per division is called the “Timebase” on this unit. The display is normally in a scrolling mode displaying real time data. This changes when recording data. In that case, the display shows the full record. See Chapter 7 for more information about recording data.
Figure 4.1 F(t) Screen
Item Description
1 Screen Setup, Section 4.1.
2 Configure custom pages, Section 4.1.1
3 Freeze Screen, Section 4.2
4 Full Screen – change the view to full screen, touch the screen anywhere to
exit.
5 Timebase, Section 4.3
6 Numerical display – display the current signal value and control which
channel page is displayed.
7 F(t) plot
4.1 Screen Setup
Figure 4.2 Screen Setup Dialog
F(t) Plot
23
From this dialog, the type of plot, numerical values, math, grid scales, number of plots, and colors are set here. The number of plots is available when in F(t) mode, and is limited to the number of signals measured. The maximum number is 10. When in XY mode, the number of plots is replaced by the option to enable a custom grid (background image). When a custom grid is enabled, the options of directory and file are added to the dialog as in Section 4.3. Lastly, the choice of displaying points as dots or vectors is available for the XY display mode.
Figure 4.3 Screen Setup Dialog – XY mode
4.1.1 Custom Pages
Using this menu, set the channels to see on screen from the available channels
set using the “Channels and Functions On/Off” menu. The channels are divided
into banks and the shown bank is set here. For example, this allows channels 1
and 10 to be shown on the screen and turn off other channels.
4.2 Freeze Screen and Cursor Measurements
Freezes the graph at the screen to perform measurements through cursors, calculations, save or print the measurements at screen, in the F(t) mode. When frozen, horizontal and vertical cursor icons are added to the right-hand panel. Selecting the vertical cursor icon
enables time based cursors. Move the individual cursors by the touchscreen or other mouse interface to set the
cursor positions. selecting the horizontal cursor icon Figure 4.4.
changes the available buttons in the right hand panel, See
F(t) Plot
24
Figure 4.4 Horizontal Cursor Options
Icon
Description
Undo the last cursor action completed.
Opens a dialog box for setting the signal to measure with the cursors.
Zoom the selected channel to fit within the current cursor settings.
Set the vertical axis parameters for the selected channel. The range is the vertical span of the channel. The center value defines what value is the middle of the axis. The “Position” defines the vertical location of the horizontal axis (time) in percentage. The range is from -100 to 100 %. For example, -50 will place the horizontal axis at 2.5 divisions above the bottom of the display. All together, the range sets how many volts tall the vertical axis is, center sets the
4.3 Time Base
The trace time scale may be set to a number of values. Pressing the Timebase
button on the right of the F(t) plot screen brings up the dialog as shown in
Figure 4.5.
4.4 Math
Math functions may be applied to multiple channels. To enable math functions, enable the check-box for “Math” in the
“Screen Setup” window. When enabled, the
icon is added to the right hand button panel. Pressing the
button brings up the configuration dialog shown in Figure 4.6. Use the arrow buttons at the top to increase of decrease
the number of math functions. Use the arrows at the bottom to change the channel on which the math is done, or press
the channel named for each row to set the desired channel. See Figure 4.7 for the set of functions available.
The values calculated for each function configured are shown on the main plot screen, colored the same as the channel
they do math on. See Section 4.4.1
Calculated values are displayed in the plot window showing the following:
F(t) Plot
25
Figure 4.5 Time Base Setting (Time/Division)
· channel number (with its color) · function name · value
Figure 4.6 F(t) Channel Math Settings Dialog
4.4.1 Math Functions
Math function values may be moved around on the screen. To move the math
values, click and drag them to a desired position on screen.
Minimum
F(t) Plot
26
Figure 4.7 F(t) Channel Math Functions Dialog
Maximum Peak to Peak
Low High Amplitude
Figure 4.8 Math Dialog Box
The most frequent value below the median The most frequent value above the
median
F(t) Plot
27
On positive oscillation On negative oscillation
–
100
–
100
Average frequency
1
Cycle average
Duration of N
complete periods
Average
duration
of
a
complete
cycle
calculated
on as many periods as possible
Rising edge
T1 = 10% Amplitude T2 = 90% Amplitude Trise = T2 – T1
Falling edge Positive pulse width Negative pulse width
Positive duty cycle Negative duty cycle
T1 = 90% Amplitude T2 = 10% Amplitude Tfall = T2 – T1 Measurement of the time
of 1st positive pulse. It is measured at 50% of amplitude Measurement of the
time of 1st negative pulse. It is measured at 50% of amplitude
positive pulse duration
negative pulse duration
N : total number of dots
1
=1
–
Note2
2 Calculated using the whole graphic range
F(t) Plot
28
RMS Standard Deviation
1
=1()2
–
Note2
1
=1(
–
)2
–
Note2
XY Plot
The XY mode is accessible via the main menu by pressing the XY key. In this
mode, one of the channel represents the horizontal axis (X), and the other
channel the vertical axis (Y). For example, if the channel for the horizontal
axis is 1V and the channel for the vertical axis is at 95F, the recorder plots
a point at (1,95). A custom background/grid may also be shown on the display.
From the “Screen Setup” menu accessed by pressing the button on the XY plot
screen, select the “custom grid” check-box, select the folder containing the
bitmap to be used (middle button), and select the bitmap using the right most
button on the line. Along with the XY plot, a numeric representation of the
current signal values is shown.
Item Description
1 Screen configuration – Open the measurement display
2 Trace – Allows to start or stop the trace
3 Delete Allows to delete the screen
4 X channel Selects the channel for the horizontal axis
5 Full screen Allows to view on the full screen, press on the reticule to come
back to the normal mode
6
Figure 5.1 XY Display Screen
Arrow
key shows or hides
the numerical window
Figure 5.2 XY Setup Window
Item Description
1 Plot type – F(t) or XY
2 Point display – Dots or vectors
3 Display Numerical Values shows the numerical values in a table
4 Display Boundaries – shows or hides the axes
5 Custom Grid – configures the grid and background image
6 Colors – sets the color of the background, grid and cursor using a color
picker
XY Plot
30
Figure 5.3 Numerical Window
1. The or keys : selects the group to view. 2. By pressing a specific
channel:
The graph terminals are bound to this channel. In real time acquisition,
the instant value will show up. By visualizing the cursors; then the
difference value between cursors as well as T1 and T2 values corresponding
to cursors T1 and T2 will be displayed. 3. Press right to hide this window,
and when hidden, the icon points left.
Numeric Display
The numerical window allows to visualize in real time the values of each
channel. See Figure 6.1. The number of channels shown per screen depends on
the number of channels selected. Each display page is accessed by pressing the
right and left arrows.
Item Description 1 Cycle display screens (channels, custom sets, logic
functions, etc…) 2 Digital channel state (shown when “Logic Channels” option
is set in the “Channels and Functions” menu. 3 Reset minimum and maximum
recorded values 4 Individual channels, click within each channel to open the
configuration menu for that channel
Figure 6.1 Numeric Display Screen
Recording
The DAS240-BAT and DAS220-BAT can save data to internal storage. The user can
then retrieve the data and review it on the unit, save it to a USB drive, or
retrieve it via the Ethernet interface.
7.1 Create a Recording
To create recordings, press the “record” button on either the “setup” screen
or from the top ribbon when in any of the 3 data display modes (F(t), XY, or
Numeric) to start a recording. See Figure 7.1. Recording starts when the
trigger condition is met. If the trigger function is not running, stop is
selected on the trigger setup page, then recording starts immediately. Figure
7.2 is waiting for a trigger, and Figure 7.3 has started recording.
Figure 7.1 Record Keys
] Figure 7.2 Record screen
7.2 View Recording
Stored recordings may be recalled and analyzed. With a recording loaded,
zooming into portions of the recording and making cursor measurements can be
done. To open a saved recording, navigate to the “Home” screen and press the
button. Alternatively, when in either XY or F(t) screens, the blue triangle
(Figure 7.4) in the top ribbon opens the recording playback mode. 7.2.1
Loading a Recording
Recording
33
Figure 7.3 Recording started
Figure 7.4 Recording playback
1. Press the
button. This will open Figure 7.5.
2. Press the “Read File” button within the new dialog.
3. Navigate and select the recording to view.
4. When a file is selected, a new button appears . Press this button to load the selected recording.
Recording
34
Figure 7.5 Load Saved Recording File Dialog
Figure 7.6 File Browser Figure 7.7 Saved Recording Loaded
Triggering Recordings
Figure 8.1 Trigger Menu
Item Description 1 Record file path 2 Recording size 3 Reading storage rate
(reading
period) 4 Start condition 5 Stop condition 6 Trigger arm state
The start and stop functions control the conditions that initiate data recording. Opening the “Start”, or “Stop” trigger menus open the start condition dialogs with the following recording start options:
Manual pressing a key
Trigger Based on Analog, or Digital signal conditions. See Section 8 for details
Waiting After a delay or at a specified date and hour. See Section 8.1 for details
Automatic Occurs immediately, and automatically stops when the file is full
Pre-Trigger Quantity of samples to record preceeding the trigger
8.1 Waiting Start Condition
Starting a recording at a prescribed later time or date. Figure 8.2 shows the
2 dialogs for configuring each condition. Waiting on a delay, will wait for
the prescribed time and proceed with a recording. Waiting for date delays
recording until a specific time and date. For each, configure the time in
hours, mins and seconds, and for the date, the day, month and year is also
set.
8.2 Recordings
· Recording setup: Selection the folder Selection the file name (beginning
of the file name, the end is an incremented numerically) Length of the file
(maximum or selection of the number of samples per channel) Measurement data
prior to a trigger event may be included in the data recording. The amount of
data is defined as the “Pre-trigger” samples. The amount of data is set and
determines the amount of time before the trigger event to include in the
recording.
· Speed: The maximum speed is determined by the number of channels for
acquisition.
Triggering Recordings
36
Wait for a Time
Wait for a Date Figure 8.2 “Waiting” Start Conditions
· Start: Start condition of the data acquisition · Stop: Stop condition of the
data acquisition
Automatic: when the file is full Trigger: on a channel or a combination of
analog or logic channels · After acquisition: action after the end of the data
acquisition (only available if the Start and Stop triggers are not set to
Manual) Stop: no action Rearm: a new file is launched waiting for the
Start trigger · View of the active channels, of the recording time, of the
pre-launch Note: A message “Impossible” shows up when the saving possibilities
are exceeded. Fix this by reducing the sampling speed or the number of
channels. Various conditions are available for starting and stopping
acquisition recording. Analog signals, time delays, and logic inputs are
trigger sources. Also, the amount of data prior to a trigger event is
configurable. Access the trigger menu from the “Home” screen and the “Trigger”
button. Figure 8.1 is representative of the trigger configuration window.
8.3 Triggering
Triggering is based either on a single channel edges and thresholds,
combinations of analog channels, or set digital signal states.
8.3.1 Single Analog Channel Trigger
To use a single analog channel as a trigger source, the general procedure is
as follows:
Triggering Recordings
37
Figure 8.3 Start Condition Dialog 1. Select trigger, and “Analog Channel” from
the trigger dialog. 2. Set the amount of Pre-trigger samples to record. 3.
Choose the trigger source channel. 4. Select the trigger condition (Threshold,
level (higher/lower), or edge) 5. Set the trigger analog signal level. 8.3.2
Single Threshold
Figure 8.4 Trigger Threshold Setup Channel: Selection of the channel, on which
the trigger threshold is applied Threshold 1 / Threshold 2: Selection of the
threshold to settle; each channel is tested with reference with 2 thresholds,
i.e.
you can program a start condition on the channel A1 and the threshold 1, and a
stop condition on this same channel A1 and the threshold 2 Higher / Lower:
Trigger when the channel value is more or less than the set threshold
Threshold value: Threshold value selected in real value (taking the current
unit and scale of the configuration of the selected channel into account)
Triggering Recordings
38
Edge: Selection of the active edge of the channel in reference to the threshold Pre-triggering (only for start): Gives the acquisition time before the trigger appears.
8.3.3 Multiple Thresholds
After selection of a trigger on a set of logic channels, the window allows you
to set the trigger under several conditions. Then, by pressing the various
thresholds in front of their respective channels, you open the threshold
parameter window.
Figure 8.5 Multiple Threshold Trigger Screen · One of the thresholds, or the
first achieved condition activates the trigger · All thresholds, and all
conditions must be simultaneously achieved to validate the trigger · A table
makes it possible to select all channels and the validity of the channels
Selecting the channel allows the selection of the thresholds: · S1 and S2 ·
Value of the thresholds · Rising / Falling edge, or Low / High value
Figure 8.6 Trigger Type Setup Screen
Triggering Recordings
39
8.3.4 Trigger Examples
· Edge trigger: you need a change of status Example: Channel A1, rising edge,
threshold = 0V: triggers only if the signal status changes from negative to
positive
· Level trigger: no need to pass the threshold Example: Channel A1, high
level, threshold = 0V: triggers only if the signal is positive
· Alarms only have level triggers
8.4 Trigger on Logic Channels
Selecting “Logic Channels” as the trigger source changes the window to show
conditions for logic channel triggering. Each of the logic channels is
configured as a 1, 0 or X (don’t care). Use the arrow keys to move through the
logic input bits. Triggering may be configured as either an AND condition or
an OR condition. This is applied to each channel. Lastly, the trigger event is
generated on either a Level or Edge condition.
Logic 1 Greater than 4.0 Volts
Logic 0 Less than 1.6 Volts
Figure 8.7 Logic Trigger Setup Screen
Alarms
4 configurable alarm signals allow signaling from the recorder through the
digital port. The alarm signals are high (5V) when the alarm condition is
detected. The main display’s alarm status section indicates the status of the
alarms. The main display alarm status is “sticky” in that when alarm triggers,
the field is set to active (red). See Figure 9.3. The condition may clear, and
the alarm status will continue to show an alarm happened. The digital port
clears the alarm when the programmed condition is not met any longer and
returns to 0V. To configure the alarms, open the “setup” menu from the “home”
screen. See Figure 9.1. At the bottom of the screen are the 4 alarms. Each
button opens the configuration dialog for that alarm. See Figure 9.2
Figure 9.1 Alarms on Setup Screen
9.1 Alarm Status
Figure 9.2 Alarm Dialog Figure 9.3 Alarm Status
Alarms
41
The status of all 4 alarms is always visible in the top ribbon, each with its
own small square. The status of each alarm is indicated 3 colors:
Transparent Alarm disabled Blue Alarm enabled, not triggered Red Alarm enabled
and triggered
To clear an alarm, press the on screen box containing the alarm statuses.
9.2 Analog/Math/Timing Signal Alarm
An alarm based on analog signal levels, a math function, or a “logical
function” is set by selecting the “trigger” function on the Alarm dialog
(Figure 9.2). Signals available for Alarms must be active signals configured
in the “Channels” menus on the “Home” screen. When selected, the dialog
changes contents to show something similar to Figure 9.4. Select the desired
signal by pressing the button listing a channel at the center of the dialog
box. Depending on the signal type, 1 thresholds may be set. The selected
threshold is show at the top of the dialog. To set the trigger as a window,
the “channels combination” configuration must be used. See Section 9.3.
Figure 9.4 Analog Alarm Trigger
Figure 9.5 Alarm Analog Thresholds
9.3 Analog Signal Combination Alarm
More complex triggering based on windows, and combinations of signals is
available. The signals are limited to the analog channels and do not include
math and timing as in the single channel alarm. The signals may have 2
thresholds.
Alarms
42
The set of signals configured will trigger the alarm if 1 threshold is true, or all thresholds are true. This is set by the AND/OR condition at the top of the dialog.
Figure 9.6 Analog Combination Trigger
9.4 Logic (Digital) Signal Alarm Trigger
An alarm based on the logic state of the digital input is configured by
selecting the “Logical Channels” option. Following the typical convention of a
1, 0 and X to denote true, false and “dont’t care” respectively, is used to
set the digital patter to trigger on. Also, using the “AND” or “OR” conditions
select when the trigger occurs. With the “AND” condition, all signals defined
must be true for the Alarm to trigger. In the “OR” case, any valid signal,
excluding the “X” signals will trigger an alarm.
Figure 9.7 Digital Trigger
Alarms
43
9.5 Alarm on Recording Start (Trigger Acquisition)
An alarm is also available for signaling the start of a recording. Select the
“Trigger Acquisition” option to enable this type of alarm.
Figure 9.8 Trigger on Alarm
Logic Channels
Up to 12 logic channels can be recorded simultaneously with the analog
channels. In addition, 4 timing channels are also available for measuring duty
cycle, RPM, and pulse count.
10.1 Logic Input Connector
This is a DB-25 connector located on the top of the unit.
Pin Signal
Pin Signal
13 Logic Ch 1 19 Function K2
25 Logic Ch 2 6 Function K3
12 Logic Ch 3 18 Function K4
24 Logic Ch 4 5 Ground
11 Logic Ch 5 17 Ground
23 Logic Ch 6 4 Ground
10 Logic Ch 7 16 9-15V 0.2A
22 Logic Ch 8 3 Ground
9 Logic Ch 9 15 Alarm C
21 Logic Ch 10 2 Alarm D
8 Logic Ch 11 14 Alarm A
20 Logic Ch 12 1 Alarm B
7 Function K1
Figure 10.1 Logic Connector
10.2 Logic Channel Setup
To set the logic channels, press the “logic channels” button on the “Home”
screen, or from the “F(t)” screen, click within the logic signal portion of
the screen when present, See Figure 10.2. The configuration screen will open
and resemble Figure 10.3. The set of channels depends on the number of
channels chosen. For a given number of channels, the signals enabled on the
connector is fixed. For example, if 4 channels are enabled by the up/down
arrows beside the text listing the number of channels, then pins 13, 25, 12,
and 24, will be active. They become channels 1-4 respectively.
Figure 10.2 Logic Channels on the F(t) screen
Logic Channels
45
Item Description 1 Channel number, color and arrows to
change channel 2 Channel count 3 Enable logic channels 4 Connector (red –
selected channel) 5 Additional pin information 6 Channel #, pin, and state
(dim –
disabled)
Figure 10.3 Logic Channel Configuration Screen
10.3 Timing
Function channels K1-4 are used for measuring the PWM duty cycle, count, or frequency of up to 4 digital signals. They are also 3.3V level signals and tolerant of 24V.
Access the setup for these functions from the “Home” screen and pressing the
. Then navigate to the
channels K1-4. See Figure 10.4. To configure each channel, either change the parameters on this screen by opening the
menus per field in the table, or open the configuration screen for a single channel by pressing the channel ID (i.e. K1).
Configuration of a single channel is done via screens similar to Figure 10.5.
Figure 10.4 Timing Function Channels
10.4 Alarm Outputs
Finally, the “Alarm” signals are also present on the Logic connector (A, B, C
and D. Pins 14, 1, 15 and 2 respectively). Their setup and use is described in
Section 9. All outputs are TTL 5V. When the unit is powered off, outputs have
a 5k resistance.
Logic Channels
46
Figure 10.5 Single Timing Function Setup Screen
File Management
The recorder is capable of creating recordings, screenshots, and saving device
setup configurations. All of these are stored as files, “.rec” for
recordings, “.bmp” for screenshots, and “*.cfg” files for configurations. The
file view dialog Figure 11.1 is accessible from the “Home>Setup”,
“(Waveform)>Screen Setup>Background”, “Home>View Records”,
“Home>Setup>Load/Save on Disk” screens for example. Each instance of the file
dialog allow interaction between internal and external (USB) storage. Finally,
folder navigation and creation is also available. 1 Note: It is highly
advisable to work in a folder and not at the root of the flash disk. When
erasing a folder, all files in this directory will be erased too.
Figure 11.1 File View Screen 1. Read/write to internal flash disk or USB stick
(if it was connected during unit startup) 2. Copy the selected file or folder
to a USB drive 3. Create and name a new file 4. Create a new folder 5. Delete
the selected folder or file 6. Close the window 7. Folder navigation and
location window 8. File view and selection window
11.1 Setup Files
Setup configurations are loaded and saved from the “Home>Setup” menu. The
configuration may be changed via the 3 buttons in the upper righthand corner
of the screen:
File Management
48
Default Sets up the appliance in standard configuration Load from disk Loads a
configuration from a file in the internal flash disk or an USB stick
Save to disk Saves a configuration into a file in the internal flash disk or
an USB stick These commands are only available when the data recording is
stopped.
11.1.1 Default This action loads the system defaults as programmed into the unit during manufacturing.
11.1.2 Save Setup Files
To save a configuration, press the on screen, or, if attached, a USB keyboard.
11.1.3 Load Setup Files
. The name of the file with the alphanumerical keyboard displayed
To load a configuration, press the
. Select the directory and then the file to load, and click “Load”.
11.2 Recordings Files
Saved recordings are transferable between internal storage and USB. Recordings
are saved to internal storage. See Chapter 7 for details.
Remote Interfaces
12.1 LAN Interface
The LAN connection to the DAS240-BAT supports ModBus, VNC, Sefram Viewer and
DAS Lab. Sefram Viewer and DAS Lab are tools provided by B&K/Sefram, and are
available as a single download from http://www.bkprecision .com. The LAN
connection supports 10mBit and 100mBit networks. In the case where a network
is not available, using a crossover cable is also possible.
12.1.1 LAN Setup Setup of the LAN interface is available by clicking the
“Network” button on the “Home” screen. (See Figure 12.1). Clicking the
“Network” button opens the network setup dialog (See Figure 12.2). The LAN
interface supports static and dynamic (DHCP) configuration. For DHCP, the DHCP
checkbox is marked, and the network address will be shown on the “Network”
button shown on the “Home” screen. For static IP configuration, using
parameters defined for the network (see your local network administrator for
details) are set in the dialog.
Figure 12.1 LAN Configuration Button
12.2 VNC
Use of the unit from another computer is available using VNC (Virtual Network
Computing). This presents an interactive view of the front panel allowing
nearly all functions to be used remotely. Numerous software tools are
available for using VNC (ex. UltraVNC). To open a connection, the IP address
of the unit is required. This is found on the “Network” button on the “Setup”
screen.
12.2.1 Changing the Password Open the “Setup” screen and press the “VNC”
button. The resulting dialog box shows the current password. Press the
keyboard icon in order to change the password.
12.3 Network File Transfer
Transfer your files to your computer to save them or view them with the
SeframViewer software. · Using of the Windows file explorer · Filezilla:
freeware (https://filezilla-project.org/) · Using an external browser
(Firefox, Chrome, Edge, etc…)
Remote Interfaces
50
DHCP
Figure 12.2 LAN Setup
Static
12.4 Viewing with SeframViewer
You can transfer the data acquisition files to a PC computer for viewing. The
SeframViewer software is provided on a CD-ROM with the appliance. You can use
it to view the recorded files or convert it into xls or txt files. It works
under WINDOWS with Framework 2.0. Transfer of the files from the appliance to
the PC computer:
· USB peripheral device
· with the FTP protocol
Launch the SeframViewer software (or double-click on a file) Open a data
acquisition file (suffix .rec) You can select:
· the channels to display
· the display mode f(t) or xy
· the self-calibration of the channels.
Your data acquisition file shows up on screen. The functions of SeframViewer
are available. Refer to the instruction manual included in the software to
discover all available functions in SeframViewer by clicking on the last icon
Remote Interfaces
51
Figure 12.3 Sefram Viewer 12.4.1 Example C:Program Files
(x86)SeframViewerseframviewer.exe myfile.rec /x will create a .xls file
C:Program Files (x86)SeframViewerseframviewer.exe myfile.rec /t will create a
.txt file Excel@export will directly launch Excel in the browser.
Figure 12.4 Excel Export
Remote Interfaces
52
12.5 Device Control with DASLab
The DASLaB software manages configurations of your DAS240-BAT device.
· Open, modify and save your configurations
· Manage configurations remotly using network via Ethernet or WiFi
· Download your record files using network via Ethernet or WiFi
According to your needs, click on the right button. If you want manage your
DAS240-BAT or DAS220-BAT using network, enter the IP address to establish the
connection. For every action, including opening, saving, sending or refreshing
configurations, the left sliding menu makes you able to apply it.
Figure 12.5 DASLab
Figure 12.6 DASLab
Remote Interfaces
53
12.6 Modbus (slave)
Modbus is a non-proprietary communication protocol. All Modbus frames are
encapsulated into Ethernet frames: it is called Modbus over TCP/IP. That
protocol is dialog based (question-answer) : the client (master) send a
command, and then the server (slave), send back wanted data. The
DAS240-BAT/DAS220-BAT includes a Modbus TCP Slave service.
12.6.1 Setup Modbus Slave
The Modbus protocol uses ethernet network. So you have to choose the port used
for that feature, and then enable the Modbus TCP server. Default port for
Modbus TCP is 502. It is possible to use Wifi provided a USB Wifi adapter is
installed and working: for performance reasons however, the wired USB
interface should be used when using Modbus. In the Setup page of your
instrument, then Additional option, select the “Modbus TCP Server” button. You
could enable or disable the server: click on the radio button < Modbus server
state >. According to your preferences, you are able to change the network
port dedicated to the Modbus server. To carry out that change to a successful
conclusion, you must disable the Modbus server, change the port (502 by
default), and then restart the Modbus server.
12.6.2 Mapping Modbus TCP The instrument shares acquisition data at input registers (0x04) and discrete input (0x02).
12.6.2.1 Analog Data
Acquisition data for the 200 analogs channels, and 4 logicial functions channels (K1 to K4) are located in inputs registers from the following address : 0x08.
Register Register Description
0x08 A1 High word
0x09 A1 Low word
0x0A A2 High word
0x0B …
A2 Low word …
0x19F K4 High word (channel n* 204)
0x1A0 K4 Low word
Table 12.1 Modbus register map
An input register contains 16 bits, and each channel value is represented as a float (32 bits). So, to read one channel, you should read two input registers. Example : Input A1 from address 0x08 to 0x09 At address 0x08 : -16460 (16 bits) At address 0x09 : 28160 (16 bits) Value in float : -1.40961 (32 bits)
12.6.2.2 Logical Data Logical values about the 12 logical channels are located in the discrete inputs from the address 0x08.
Remote Interfaces
54
Register Register Data
0x08 DI1
…
…
0x14 DI12
Table 12.2 Register Mapping
Maintenance
Unplug the unit before any cleaning or maintenance. Periodically clean the
recorder while unplugged, in the following ways: · Use water and soap to clean
the front and rear surfaces. · Never use any product that contains petroleum
by-products, benzene or alcohol: damage the screen printings may
occur · Wipe with a soft lint-free cloth. · Use an antistatic product to clean
the screen.
13.1 Updating the Internal Software
The internal software is updated regularly with the latest evolutions. These
updates are available on our website. http://www.sefram.com/en/software-
updates.html · To update the software, copy the file that will be provided on
an USB stick. Place it on the USB connector on the
rear side of the unit. · Press the “Setup” key. · Then press the “Software
update” key to enter the update. · Finally, to run the update, press the
“Sofware update” key. · Then, the internal software automatically copies the
necessary files to the new version. · Turn the unit off and on after the end
of the updating process.
Specifications
Note: All specifications apply to the unit after: 1. A temperature
stabilization time of 15 minutes over an ambient temperature range of 23 C ± 5
C. 2. Short correction operation performed before making measurement.
Specifications are subject to change without notice.
Multi-channel data recorder DAS240-BAT Series
Specifications
Analog Channels
Analog Input Channels
20 standard, expandable to 200 with optional 20-channel modules
DC Voltage
Ranges
± (0.5, 1, 2.5, 5, 10, 25, 50, 100) mV ± (0.5, 1, 2.5, 5, 10, 25, 50, 100) V
Maximum input Voltage
100 V DC
Accuracy
0.1% of the full scale ±10 µV
Temperature with Thermocouples
J
-210 °C to 1200 °C
K
-250 °C to 1370 °C
T
-200 °C to 400 °C
Sensors Range by
S
Type (Cold junction
B
compensation: ±0.5 °C)
E
-50 °C to 1760 °C 200 °C to 1820 °C -250 °C to 1000 °C
N
-250 °C to 1300 °C
C
0 °C to 2320 °C
L
-200 °C to 900 °C
Temperature with Pt100 and Pt1000
Current
1 mA (Pt100), 100 µA (Pt1000)
Range
-200 °C to 850 °C
Measurements
2 and 3 wires
Accuracy (at 20 °C)
0.3 °C ±0.1% of reading
Compensated Resistance
2 wires 3 wires
30 max. 50 max.
Resistance
Ranges
1 k and 10 k
Accuracy
1 (range 1 k) and 10 (range 10 k)
Logic Input/Output Number of Channels
Maximum Permitted Voltage Input Impedance Sampling Rate
Timing Input Number of Channels
Maximum Permitted Voltage Input impedance Sampling Rate Pulse Counter
Frequency Measurement PWM Measurement
Alarm Output Number of Channels Output Level
Logic Channels
12 24 V Cat I
4.7 k 1 ms max.
4 (K1 to K4) 24 V Cat I
4.7 k 1 ms max. 0 to 10 Million, accuracy 0.1% 1 Hz to 10 kHz, accuracy 0.1%
100 Hz to 2 kHz, accuracy 0.1%
4 Alarms (A, B, C, D) 0 to 5 V
Acquisition System
Resolution
16 bit
Acquisition System
Scan, one sample per channel
Sampling Interval
V >50 mV
V 50 mV, thermocouples and
Pt100 / Pt1000
1 ms to 20 min 2 ms to 20 min
Trigger
Date, delay, threshold, combination of thresholds (and/or), word on logic channels (and, or, slope, level)
Pre-trigger
Variable from 0 to 100k samples
General
Internal Flash Drive Size
32 GB
Maximum File Size
2 GB
Operating Temperature
0 °C to 40 °C, 80% RH (no condensation)
Storage Temperature
-20 °C to 60 °C
Display
10″ TFT touchscreen LCD, backlit, 1024 x 600 dots
Power Supply
15 V / 4 A max with main adapter (100 / 240 VAC)
Interfaces
2 x USB host, LAN (10/100 base-T with RJ45 socket)
Battery (-BAT)
Non removable, Lithium-ion
Typical Battery Life (-BAT)
15 hours with standby mode, 10 hours without stand-by mode
Safety
Cat I 100 V, according to IEC61010-1
Weight
DAS240 / 3.3 lbs (1.5 kg) DAS240-BAT / 4.5 lbs (2 kg)
Dimensions (W x H x D)
2.6″ x 11.7″ x 6.9″ (66 x 298 x 176 mm)
Warranty
Two Years
Supplied Accessories
Main adapter 100 / 240 V, 25 pin male connector(1) and backshell, 1 cable (70
cm) for
measurement module connection, 1 measurement module (20 channels) with input
terminals, stylus, soft wipe, screwdriver, calibration certificate and test
report
Order Information for Optional Accessories
902401000
20-channel analog module with 20 input terminal blocks
902401050
Analog input terminal blocks 20 pack
902408000
Rugged carrying case
902407000 902406500
Logic channels patch cord 4 to 20 mA / 50 shunt
902409000 (1) User configurable with solder cups
19″ rack-mount kit
Portable 10-channel data recorder DAS220-BAT Series
Specifications
Note: All specifications apply to the unit after a temperature stabilization
time of 30 minutes over an ambient temperature range of 23 °C ± 5 °C.
Analog Channels
Analog Input Channels
10 integrated channels
DC Voltage
Ranges
± (0.5, 1, 2.5, 5, 10, 25, 50, 100) mV ± (0.5, 1, 2.5, 5, 10, 25, 50, 100) V
Maximum input Voltage
100 V DC
Accuracy
0.1% of the full scale ±10 µV
Temperature with Thermocouples
J
-210 °C to 1200 °C
K
-250 °C to 1370 °C
T
-200 °C to 400 °C
Sensors Range by
S
Type (Cold junction
B
compensation: ±0.5 °C)
E
-50 °C to 1760 °C 200 °C to 1820 °C -250 °C to 1000 °C
N
-250 °C to 1300 °C
C
0 °C to 2320 °C
L
-200 °C to 900 °C
Temperature with Pt100 and Pt1000
Current
1 mA (Pt100), 100 µA (Pt1000)
Range
-200 °C to 850 °C
Measurements
2 and 3 wires
Accuracy (at 20 °C) Compensated Resistance
0.3 °C ±0.1% of reading
2 wires
30 max.
3 wires
50 max.
Resistance Ranges Accuracy
1 k and 10 k 1 (range 1 k) and 10 (range 10 k)
Logic Channels
Logic Input/Output
Number of Channels
12
Maximum Permitted Voltage Input Impedance
24 V Cat I 4.7 k
Sampling Rate
1 ms max.
Timing Input
Number of Channels
4 (K1 to K4)
Maximum Permitted Voltage Input impedance
24 V Cat I 4.7 k
Sampling Rate
1 ms max.
Pulse Counter
0 to 10 Million, accuracy 0.1%
Frequency Measurement
1 Hz to 10 kHz, accuracy 0.1%
PWM Measurement
100 Hz to 2 kHz, accuracy 0.1%
Alarm Output
Number of Channels
4 Alarms (A, B, C, D)
Output Level
0 to 5 V
Acquisition System
Resolution
16 bit
Acquisition System
Scan, one sample per channel
Sampling Interval
V >50 mV
V 50 mV, thermocouples and
Pt100 / Pt1000
1 ms to 20 min 2 ms to 20 min
Trigger
Date, delay, threshold, combination of thresholds (and/or), word on logic channels (and, or, slope, level)
Pre-trigger
Variable from 0 to 100k samples
General
Internal Flash Drive Size
32 GB
Maximum File Size
2 GB
Operating Temperature
0 °C to 40 °C, 80% RH (no condensation)
Storage Temperature
-20 °C to 60 °C
Display
10″ TFT touchscreen LCD, backlit, 1024 x 600 dots
Power Supply
15 V / 4 A max with main adapter (100 / 240 VAC)
Interfaces
2 x USB host, LAN (10/100 base-T with RJ45 socket)
Battery (-BAT)
Non removable, Lithium-ion
Typical Battery Life (-BAT)
15 hours with standby mode, 10 hours without stand-by mode
Safety
Cat I 100 V, according to IEC61010-1
Weight
DAS220 / 3.3 lbs (1.5 kg) DAS220-BAT / 4.5 lbs (2 kg)
Dimensions (W x H x D)
2.6″ x 11.7″ x 6.9″ (66 x 298 x 176 mm)
Warranty
Two Years
Supplied Accessories
Main adapter 100 / 240 V, 25 pin male connector(1) and backshell, 10 input
connectors, shoulder strap, stylus, soft wipe, screwdriver,
calibration certificate and test report
Order Information for Optional Accessories
902401050
Analog input terminal blocks 20 pack
902408000
Rugged carrying case
902407000 902406500
Logic channels patch cord 4 to 20 mA / 50 shunt
902409000
19″ rack-mount kit
(1) User configurable with solder cups.
Thermocouple Measurement Accuracy
The thermocouple measurements are treated as voltage measurements. For a given
range of temperature measurement, the software calculates the voltage caliber
the following way: · Let < T > the absolute value of the max. measurable
value, in C · Add 40C to take the max. cold welding temperature into account ·
Search the corresponding voltage value U in the table of thermocouples ·
Program the caliber with U included in the range.
17.1 J Type Thermocouple Example
You want to program a measurement range between -50 and + 50C with a J
thermocouple: · Max. absolute value T = 50C · Add 40C T + 40 = 90C ·
Corresponding U voltage according to the tables ThJ U = 4.726 mV · Programmed
caliber: 10 mV (measurement range: -5mV to +5mV) The measurement inaccuracies
below are max. values: the typical values are half to thrice as much. The
temperature measurement accuracy is the sum of several possible uncertainty
causes: · Pl: linearization accuracy · Ps: weld welding accuracy · Pm:
measurement accuracy of the equivalent voltage The total accuracy Pt is then:
= + + For the recorder: · Pl = + 0.25C for all thermocouples · Ps = + 0.5C for
all thermocouples · Pm = 0.1% of the voltage caliber + 10V) divided by the
slope of the thermocouple in V/C
17.2 Measurement Accuracy: Pm
The measurement accuracy Pm depends on the voltage caliber of the appliance
(see the previous paragraph) and on the slope of the thermocouple. You shall
take the slope at 0C while knowing that it will vary as a function of the
temperature, but this variation is generally of the second order for the
accuracy calculation.
17.3 Voltage of Thermocouple (mV)
Slope of the thermocouples (V)
Thermocouple Measurement Accuracy
58
· At 100 C the slope of thermocouple J is 55V · At -100 C slope is 30V . · So the error is 2 time greater then 100C to -100C.
17.3.1 Example of Accuracy Calculation
You make a welding between -50C and +50C with a J thermocouple with
compensation of cold welding. = ++
Linearization accuracy = +0.25 Compensation of cold welding = +0.5
Used caliber 10mV – (see previous example) Accuracy for voltage measurement
0.1 % 10 + 10 = 20
Slope of J thermocouple 50 / Accuracy Pm = 20/50 = 0.4
Total accuracy = 0.25 + 0.5 + 0.4 = 1.15
(17.1)
17.4 Accuracy Class – Class Index
This is one of the most important concepts of the CEI recommendation; it tends
to shorten the list of specifications. To do so, it introduces the concept of
PREDICTIVE CLASS that depends on the C CLASS INDEX. The normalized values of
the class index are: C = 0.1, 0.25, 0.5 and 1. The intrinsic error (in the
reference conditions) does not exceed + C% (the manufacturer may also specify
this limit of the intrinsic error as an absolute value (ex. + 5 V) for the
first calibers). The variations (of the measured value) with the variations of
one of the influential variables in the nominal range of use do not exceed:
· C % for the position for the magnetic induction with external source and
parasite voltages
· 0.5 C% for the power supply source
· 0.3 C% according to the class index at ambient temperature (0.15% for the
0.25 class).
In addition, the insensitivity range should not exceed:
· C% in the reference conditions
· 1.5C% for the maximal resistance of the external measurement circuit
· 2C% for parasite voltages
And the excess should not be more than 2C% (4C% within the limits of the power
supply source). %
17.5 Grounding
· If the source of the signal you have to record has low internal impedance,
you shall use twisted wires. In case of high impedance, you shall use shielded
wires.
· When gathering grounds from the various items on the measurement line, it is
good to check that there is no voltage difference between them, in order to
prevent any shortcut. If any doubt, make a measurement with a voltmeter on a
low resistance (i.e. 1k) between the terminals.
· If any important noise,
Thermocouple Measurement Accuracy
59
When using the battery , connect the GND connection to the ground use the sampling period for each channel >20ms an appropriate capacity can be placed between the ground and the – wire of the signal.
LIMITED TWO-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 two 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
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.
B&K Precision Corp. : 22820 Savi Ranch Parkway
Yorba Linda, CA 92887 bkprecision.com
714-921-9095
Include with the returned instrument your complete return shipping address,
contact name, phone number and description of problem.
Version: October 7, 2020
References
- B&K Precision Corporation
- Precision Data Products - Home
- B&K Precision Corporation
- Software Updates - Sefram
- FileZilla - The free FTP solution