NOVUS N1500FT Digital Panel Meter Instruction Manual

Digital Panel Meter N1500
DIGITAL PANEL METER
V2.3x P
USER MANUAL

SAFETY SUMMARY
The symbols below are used on the equipment and throughout this document to draw the user’s attention to important operational and safety information.

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CAUTION:
Read complete instructions prior to installation and operation of the unit.| CAUTION OR WARNING:
Electrical shock hazard.

All safety-related instructions that appear in the manual must be observed to ensure personal safety and to prevent damage to either the instrument or the system. If the instrument is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

PRESENTATION
N1500 is a digital panel meter that accepts a large variety of input signals and sensors. A six-digit LED display shows the measured value and all programming parameters.
Instrument configuration is achieved from the keypad, without any hardware change. Thus, the selection of input types and alarm modes, besides other special functions, are accessed and defined from the frontal keypad.
The user should read this manual thoroughly before using the instrument. It must be handled with care and should be used accordingly for best results.
Some of the features are:

• Universal input: Pt100, thermocouples, 0-50 mV, 0-5 V, 0-10 V, 020 mA and 4-20 mA.
• Customized indications.
• 4 Vdc power supply for remote transmitter excitation.
• Memory for maximum and minimum values.
• Hold and Peak Hold functions.
• Digital input.
• Increasing or decreasing display.
• Process Variable (PV) retransmission in 0-20 mA or 4-20 mA (optional).
• RS485 MODBUS RTU serial communication (optional).
• 3rd and 4th alarm relays (optional).

PROCESS VARIABLE INPUT (PV)
The process variable (PV) input type is configured through the frontal keypad according to the codes shown in Table 1 (refer to INPUT TYPE parameter () in CONFIGURATION LEVEL).
All input types are factory calibrated and no additional calibration is required. The user does not need to make any adjustments.

Table 1 – Input types

-130 to 940 °C (-202 to 1724 °F)
K| | Range: -200 to 1370 °C (-328 to 2498 °F)
T| | Range: -200 to 400 °C (-328 to 752 °F)
E| | Range: -100 to 720 °C (-148 to 1328 °F)
N| | Range: -200 to 1300 °C (-328 to 2372 °F)
R| | Range: 0 to 1760 °C (32 to 3200 °F)
S| | Range: 0 to 1760 °C (32 to 3200 °F)
B| | Range: 500 to 1800 °C (932 to 3272 °F)
Pt100| | Range: -200.0 to 850.0 °C (-328.0 to 1562.0 °F)
0 – 50 mV Linear| | Linear. Programmable indication.
0 – 5 V Linear| | Linear. Programmable indication.
0-10 V Linear| | Linear. Programmable indication.
0 – 50 mV
No Linear| | Custom linearization, user configurable.
0 – 5 V
No Linear| | Custom linearization, user-configurable.
0-10 y
No Linear| | Custom linearization, user-configurable.
4-20 mA
NO LINEAR| | T/C type J linearization. Range: -130 to 940 °C
| T/C type K linearization. Range: -200 to 1370 °C
| T/C type T linearization. Range: -200 to 400 °C
| T/C type E linearization. Range: -100 to 720 °C
| T/C type N linearization. Range: -200 to 1300 °C
| T/C type R linearization. Range: 0 to 1760 °C
| TIC type S linearization. Range: 0 to 1760 °C
| T/C type B linearization. Range: 500 to 1800 °C
| Pt100 linearization. Range:-200.0 to 850.0 °C
0-20 mA Linear| | Linear. Programmable indication.
4-20 mA Linear| | Linear. Programmable indication.
0-20 mA
No Linear| | Custom Linearization, user-configurable.
4-20 mA
No Linear| | Custom Linearization, user-configurable.

ALARMS
The digital panel meter has 2 alarm outputs in the basic version and up to 4 alarm outputs optionally.
Each alarm has a corresponding LED message in the front panel to show alarm status.

ALARM FUNCTIONS
The alarms can be set to operate in seven different modes. These modes are shown in Table 2 and described below. The alarm can also be set as ‘disabled’.

• Break alarm –
  The break alarm is triggered whenever the input sensor breaks or is badly connected.

• Low alarm –
  The alarm relay is triggered whenever the measured value is below the alarm set point.

• High alarm –
  The alarm relay is triggered whenever the measured value is above the alarm set point.

• Differential low –
  Deviation alarm. The alarm relay is triggered whenever the difference (deviation) between the Process Variable and the reference value ( ) is lower than the values defined in . For this function, the triggering point is defined as:

• Differential High –
  Deviation alarm. An alarm relay is triggered when the difference (deviation) between the Process Variable value and the reference value ( ) is greater than the value defined in . For this function, the triggering point is defined as:

• Differential (or Band) out of range –
  Deviation alarm. The alarm relay is triggered when the difference (deviation) between the Process Variable value and the reference value ( ) has its modulus greater than the value configured in . For this function, the triggering point is defined as:
  

• Differential (or Band) within range –
  Deviation alarm. An alarm relay is triggered when the difference (deviation) between the Process Variable value and the reference value ( ) has its modulus lower than the value defined in . For this function, the triggering points are defined as:
  

Table 2 – Alarm functions

59](https://manuals.plus/wp-content/uploads/2022/07/NOVUS-Digital-Panel- Meter-N1500-FIG-59.png)
Differential High (differential High)| |
Differential out of range (differential out)| |
Differential within range (differential Within)| |

ALARM TIMER
The alarms can be configured to perform timing functions. The configuration allows the alarm output to be delayed, or to deliver a single pulse or a train of pulses. The delay, the pulse width, and the period are defined by the user.
Table 3 shows these advanced functions. Times T1 and T2 can be programmed from 0 to 6500 seconds and are defined during configuration (see ALARM LEVEL section). Programming 0 (zero) in the timer parameters T1 and T2 disables the timer function.
The LEDs associated with the alarm always light up when the alarm condition occurs, regardless of the current state of the output relay, which may be de- energized momentarily due to a time delay.

Table 3 – Timer alarm functions

65](https://manuals.plus/wp-content/uploads/2022/07/NOVUS-Digital-Panel- Meter-N1500-FIG-65.png)
Delayed| 0| 1 s to 6500 s|
Pulse| 1 s to 6500 s| 0|
Oscillator| 1 s to 6500 s| 1 s to 6500 s|

ALARM INITIAL BLOCKING
The Initial Blocking option inhibits the alarm from being recognized if an alarm condition is present when the controller is first energized. The alarm will be triggered only after the occurrence of a nonalarm condition followed by a new occurrence for the alarm.
The Initial Blocking is disabled for the Break Alarm function.

SPECIAL FUNCTIONS

MAXIMUM AND MINIMUM
The digital panel meter memorizes the measured maximum and minimum values (peak and valley). These two values are shown when pressing the MAX or MIN keys.
Pressing both keys simultaneously will clear the memory for a new peak and valley detection.

SPECIAL FUNCTION KEY AND DIGITAL INPUT
The key (special function key) in the frontal panel and the optional digital input can execute special functions according to the user selection. Figure 8 shows how to activate the digital input. The special functions for the key and for the digital input are explained as follows.
• – Freeze measured value
The Hold function freezes the measured value shown in the display. This function is toggled each time the key is pressed, or the digital input is selected.
Whenever the digital panel meter is in the Hold mode a message is briefly displayed to show the operator that the displayed value is the frozen value and not the current input reading.
• – Maximum value
The Peak Hold function shows the maximum value measured since the last time the key was pressed, or the digital input activated.
Each activation of the key or digital input triggers a new Peak Hold level and the display resets with a new peak value.
•  – Clears maximum and minimum
This function works the same way as the MAX and MIN keys pressed simultaneously, as explained in the MAXIMUM AND MINIMUM section.
If this function is programmed, every touch of the key or activation of the digital input will clear the memory and a new level of maximum and minimum values memorization will start.

PROCESS VARIABLE RETRANSMISSION
As an option, the digital panel meter can be supplied with an isolated 0-20 mA or 4-20 mA analog output for Process Variable (PV) retransmission. Available at the back panel terminals 29 and 30. When this option is available, retransmission will be always active, so that the user will not be required to turn it on or off.
The PV values that define the scale of the 0 mA / 4 mA to 20 mA retransmission can be programmed by the user in the high and low output limits ( and ), at the configuration level. High and low limits can be freely programmed, even with a low limit higher than the high limit, resulting in a reversed retransmission signal (decreasing signal when PV increases).
For a voltage output signal, an external shunt (calibrated resistor) should be installed at the analog output terminals.

AUXILIARY 24 VDC POWER SUPPLY – AUXILIARY P.S.
The digital panel meter provides a voltage power supply of 24 Vdc to excite field transmitters with a 25 mA current maximum capacity.
Available at the back panel terminals 16 and 17.

CUSTOMIZED LINEARIZATION
Three types of signals can be user-customized to fit a linearization profile. This means that the operator can configure the instrument to read non-standard crescent non-linear signals with high accuracy.

INSTALLATION

The digital panel meter is designed to be panel mounted. Remove the two plastic fixing clamps from the instrument, insert the unit into the panel cut- out and slide firmly the fixing clamps from the rear against the panel.

INSTALLATION RECOMMENDATIONS

• Input signal wires should be laid out away from power lines and preferably inside grounded conduits.
• Instrument mains (line) supply should be suitable for this purpose and should not be shared.
• In controlling and monitoring applications, the consequences of any system failure must be considered in advance. The internal alarm relay does not warrant total protection.
• The use of RC filters (47 R and 100 nF, serial) is highly recommended when driving solenoids, contactor coils, or other inductive loads.

ELECTRICAL CONNECTIONS
The internal electronics can be removed from the front panel without any cable disassembly. The input signals and power connections are shown in Figure 1.

POWER CONNECTION

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Figure 2 – Power Connection

SENSOR AND INPUT SIGNAL CONNECTIONS
These connections should be properly done, and terminals must be well tightened. Thermocouples must be installed with proper extension or compensation cables.
Pt100 RTDs must be 3-wire connected and the wires connected to terminals 22 and 23 should have the same electrical resistance (same wire gauge) for correct cable length compensation. Four-wire RTDs can be connected by disconnecting the fourth wire. Two-wire RTDs can be connected by shortening terminals 22 and 23 and connecting the Pt100 to terminals 23 and 24.
The figures below show the connections relative to each type of input.

Figure 9 shows the connections for a 4-20 mA transmitter powered by the 24 V power supply of the digital panel meter.

DIGITAL INPUT (DIG IN)
The digital input is activated by connecting a switch (or equivalent) to its terminals, as shown in Fig. 8 above.

ANALOG OUTPUT
The N1500 can deliver either 0-20 mA or 4-20 mA analog output, depending on how the instrument is configured. The output is available at terminals 29 and 30.

OPERATION

The front panel is shown below:

Status Display: Shows the process variable (PV) and the programming prompts.
Indicators A1, A2, A3, and A4: Show active alarms.
Indicators Rx and Tx: Indicate RS485 communication line is active.
PROGRAM key: This key is used to access different displays with the programmable parameters of the device.
BACK key: This key is used to go back to the previous parameter displayed in the menu level.
UP / MAX and DOWN / MIN key: These keys are used to increase and decrease parameter values. These keys are also used to display maximum and minimum values stored in memory.
FUNCTION key: This special function key is used for pre-programmed functions as explained in the special function key section of this manual.
The digital panel meter requires that the internal parameters be properly configured such as to fit the application’s needs. These parameters are the input type (T/C, Pt100, 4-20 mA, etc), alarm triggering points, alarm functions, etc.
These parameters are divided into five levels (or groups) of parameters which we will refer to as LEVELS.

Table 4 – Parameters levels

3 − Functions
4 − Configuration
5 − Customized Linearization
6 − Calibration

The work level has free access. All other levels require a certain combination of keystrokes to be accessed. The combination is:

and keys pressed simultaneously

Once within a level, just press to move to the subsequent parameters of this level. At the end of each level, the display will go back to the work level.
Note: To access the calibration level, however, it is required to press the keys and ****simultaneously for 10 seconds. The first parameter in this level is presented ( ) indicating that the calibration level is enabled.
After reaching the intended prompt just press the or keys to change this parameter accordingly. All changes are recorded in nonvolatile memory as we move to the next prompt. After 25 seconds with no key pressed the digital panel meter will return to the measuring level (work level).

CONFIGURATION PROTECTION
As a safety measure, parameter changes can be prevented by a combination of keys, valid for each level. The protected parameters can be inspected but not modified.
To protect a level, press the and keys simultaneously for 3 seconds while in the level. To unlock the level, press and for 3 seconds.
The display will briefly flash confirming that the level was successfully locked or unlocked.
For further protection, the keypad unlocks operation can be disabled by changing the position of an internal strap inside the digital panel meter:
When PROT is OFF, the user is allowed to lock and unlock the levels using the keypad as explained above. If PROT is ON, the levels lock/unlock operation is disabled.
Note: It is recommended to disable/suspend the control whenever it is necessary to change the device settings.

PROGRAMMING THE DIGITAL PANEL METER

WORK LEVEL
This is the first level. At power up the digital panel meter will display the Process Variable (PV). The alarm triggering points are also displayed at this level (alarm Setpoints).
To advance in this level simply press

thermocouples, the display will show the absolute temperature value.
For 0-50 mV, 0-5 V, 0-10 V, 0-20 mm, and 4-20 mA inputs the display shows the values defined in the and parameters.
With the hold, function programmed the display shows the frozen variable and alternates with the message .
Likewise, with the Peak Hold function programmed the high limit is displayed with the prompt alternately.
Should any fault situation occur the digital panel meter will display an error message which can be identified in the PROBLEMS WITH THE DIGITAL PANEL METER section of this manual.
| Differential Alarm Reference Value. This prompt is shown only when there is an alarm programmed with a differential function. This value is used as a reference for differential alarm triggering.
| Alarms Setpoints 1, 2, 3, and 4. Defines the operation point of each alarm programmed with or functions.
When an alarm is programmed with a differential function, the alarm setpoint value represents the deviation value of the alarm relative to the reference .

ALARM LEVEL

| Alarm Function – Defines functions for alarms 1, 2, 3, and 4, configured in the ALARM FUNCTIONS section.
  Alarm off
  Broken or Shorted Sensor
Low value
High value
Differential low
Differential high
Differential outside the range
Differential within range.
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| Alarm Hysteresis. This is the difference from the measured value to the point where the alarm is turned ON and OFF.
| Alarm Blocking. Should any alarm condition occur, the alarms can be individually disabled when energizing the digital panel meter.
| Alarm Timer. The user can set delayed, momentary, or sequential alarms by configuring times T1 and T2 according to Table 3.
To disable this function just set zero for T1 and T2.

FUNCTION LEVEL

| KEY FUNCTION. Defines functions for the key. The available options are:
Key not used.
Hold PV.
Resets Peak and Valley (MAX and values).
Peak Hold.
These functions are described in detail in the SPECIAL FUNCTION KEY AND DIGITAL INPUT section.
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| Digital Input Function. Defines the function of the digital input. The available functions are the same as for the key:
These functions are described in detail in the
SPECIAL FUNCTION KEY AND DIGITAL INPUT section.
| Input Digital Filter. Adjustable from 0 to 60, this is used to reduce the instability of the measured value.
0 means the filter is off and 60 means maximum filtering. The higher the filter value, the slower the response.
| Display Offset. This is a value that is added to the PV to offset any measurement deviation or sensor error. The offset is shown in the programmed engineering unit. For °F measurements, the null reference is at 32 °F.
| Baud Rate. Serial digital communication speed in kbps. Programmable:
1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, 115.2 (no parity).
1.2P, 2.4P, 4.8P, 9.6P, 19.2P, 38.4P, 57.6P, and 115.2P (with EVEN parity).
| Communication Address. A number that identifies instruments in a multidrop network.

CONFIGURATION LEVEL

| Input type. Selects the input signal or sensor type to be connected to the PV terminals. Refer to Table 1 for options.
Changing the input type causes all other parameters related to PV and alarms to be changed as well, therefore, this parameter shall be the first to be set.
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| Decimal point position. Defines the decimal point position in the displayed value.
It is displayed when linear input types 0-50 mV, 0-5 V, 0-10 V, 0-20 mA, or 4-20 mA are selected at the  prompt.
| Temperature unit. Select °C or °F indication.
This prompt is not shown for input types 0-50 mV, 0-5 V, 0-10 V, 0-20 mA, or 4-20 mA are selected at the  prompt.
| Square root. This prompt is only shown when input types 0-50 mV, 0-5 V, 0-10 V, 0-20 mA, or 4-20 mAare selected at the prompt.
Set and the square root will be applied to the measured value within the limits programmed and .
The display will show the low limit ( ) value should the input signal be below 1 % of the range.
| Scale. Defines the indication range for linear inputs (0-50 mV, 0-5 V, 0-10 V, 0-20 mA and 4-20 mA).
Configurable indication from – 31000 to + 31000.
Configurable indication from 0 to + 60000.
Configurable indications from 0 to +120000. Only even values will be displayed (resolution is not improved).
The selected scale affects values of PV, alarm setpoints, and Offset.
| Input low limit. Sets the low limit for input type 0-50 mV, 0-5 V, 0-10 V, 0-20 mA or 4-20 mA.
The range created may have increasing or decreasing behavior in relation to the input signal behavior.
| Input high limit. Sets the high limit for input type 0-50 mV,0-5 V, 0-10V, 0-20 mA or 4-20 mA.
The range created may have increasing or decreasing behavior in relation to the input signal behavior.
| Analog output type. Selects the analog output type to either 0-20 mA or 4-20 mA.
| The low limit for analog retransmission. Defines the PV value that results in a 4 mA (or 0 mA) analog output current.
| High limit for analog retransmission. Defines the PV value that results in a 20-mA analog output current.
| 4-20 mA output behavior in case of failures.
Defines the output as 4-20 mA when there is an error in the indication.
Applies a value < 4 mA.
Applies a value > 20 mA

CUSTOMIZED LINEARIZATION LEVEL

| Defines the initial and end analog input values for each custom segment line. The values must be entered in the input signal unit:
0-50 mV, 0-5 V, 0-10 V, 0-20 mA or 4-20 mA. For 010 V, select 0-5 V.
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| Defines the corresponding indication that each custom segment is to show.
Values are expressed in the desired indication unit (within the Indication Lower and Upper Limits ).

Table 5 shows the sequence of levels and parameters presented in the display. There are parameters that must be defined for each alarm available.

WORK LEVEL| ALARM LEVEL| FUNCTION LEVEL| CONFIGURATION LEVEL| CUSTOMIZED LINEARIZATION LEVEL| CALIBRATION LEVEL
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| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |

Table 5 – Sequence of levels and parameters displayed by the digital panel meter

• Parameters that require a definition for each available alarm.
  CALIBRATION LEVEL
  All input and output types are factory calibrated. This level should only be accessed by experienced personnel. If this level is accidentally accessed do not touch the or keys, just press the key a few times to go back to the Work Level.

| Input low calibration. Sets the Process Variable low calibration (offset).
Several keystrokes at or might are necessary to increment one digit.
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| Input high calibration. Sets the Process Variable span calibration (gain).
| Analog output low calibration. Sets the analog current output low calibration (offset).
| Analog output span calibration. Sets the analog current output high calibration (span) of the analog output (20 mA).
| Cold Junction calibration. Allows the user to calibrate the cold junction temperature (at the input terminals) directly in degrees.
| Hardware type. This parameter adapts the firmware to the actual hardware (optional features) and should not be changed by the user.
2 Alarms …………………………………………. 3
2 Alarms and 4-20 mA ……………………. 19
2 Alarms and RS485 ………………………. 35
2 Alarms, 4-20 mA, and RS485 ……….. 51
4 Alarms ……………………………………….. 15
4 Alarms and 4-20 mA ……………………. 31
4 Alarms and RS485 ………………………. 47
4 Alarms, 4-20 mA, and RS485……….. 63

CONFIGURATOR SOFTWARE

Available for free download from the NOVUS website, QuickTune software is the ideal tool to configure the N1500. It also has diagnostic tools.
To configure the device, simply follow the procedure below:

1. Download and install the software on the computer to be used.
2. Run QuickTune, set up communication, and start device recognition.

PROBLEMS WITH THE DIGITAL PANEL METER

Connection errors or improper configuration will result in the malfunctioning of the digital panel meter. Carefully revise all cable connections and programming parameters before operating the unit.
Some error messages will help the user identify potential problems.

above the configured input signal limit.
| The measured value is below the value allowed for the selected sensor or below the configured input signal limit.
| Open input. No sensor is connected, or the sensor is broken.
| Pt100 cable resistance is too high, or the sensor is badly connected.

Figure 11 – Error messages

Different messages other than the ones above should be reported to the manufacturer. Please inform the serial number if this should occur. The serial number can be viewed on the display by pressing the key for about 3 seconds.
The software version of the instrument can be viewed at the time the unit is powered.
When not properly configured, the instrument may show false error messages, particularly those related to the type of input selected.
SPECIAL RECOMMENDATIONS
Should the digital panel meter be repaired, some special handling care should be taken. The device must be withdrawn from the case and immediately placed in an anti-static wrap; protected from heat and humidity.
INPUT CALIBRATION
All inputs are factory calibrated and recalibration should only be done by qualified personnel. If you are not familiar with these procedures do not attempt to calibrate this instrument.
The calibration steps are:
a) Select the input type to be calibrated.
b) Set the desired upper and lower display limits.
c) At the input terminals injects an electrical signal corresponding to a known indication value a little higher than the lower display limit.
d) Select the prompt. Through the and keys adjust PV so that it matches the injected signal.
e) Inject a signal that corresponds to a value a little lower than the upper limit of the display.
f) Select the prompt. Through the and keys adjust PV so that it matches the injected signal.
g) Repeat steps c) to f) until no further adjustment is necessary.
Note: When verifications are proceeded, note if the Pt100 excitation/activation current the calibrator requires is compliant with the Pt100 excitation current used in this instrument: 0.750 mA.

SERIAL COMMUNICATION

The digital panel meter can be supplied with an asynchronous RS485 digital communication interface for a master-slave connection to a host computer (master).
The digital panel meter works as a slave only and all commands are started by the computer which sends a request to the slave address.
The addressed unit processes the command and sends back the answer.
Broadcast commands (addressed to all units in a multidrop network) are accepted but no response is generated.
FEATURES

• RS485 compatibility with two-wire bus from the host to up to 31 slaves in a multidrop network topology.
• Up to 247 units can be addressed by the MODBUS RTU protocol.
• Maximum network distance: 1000 m.
• Disconnection time: Maximum of 2 ms after the delivery of the last byte.
• Communication signals are electrically isolated from the rest of the instrument.
• Baud rate: 1200, 2400, 4800, 9600, 19200, 38400 or 57600 bps.
• A number of data bits: 8, without parity.
• Number of stop bits: 1
• Time to start response transmission: 100 ms maximum delay after acknowledging the command.
• Protocol: MODBUS (RTU)

Two parameters must be configured to use the serial communication interface: Communications Baud Rate ( ) and the Communication Address ( ).
RS485 INTERFACE: ELECTRICAL CONNECTION
The RS485 signals are:

D1

|

D

|

D +

|

B

| Bidirectional data line| Terminal 25
---|---|---|---|---|---

D0

| |

D –

|

A

| Inverted bidirectional data line| Terminal 26

C

| Optional connection. Improves communication performance for long cable runs.| Terminal 27

REDUCED REGISTERS TABLE FOR SERIAL COMMUNICATION
COMMUNICATION PROTOCOL
The MOSBUS RTU slave is implemented. All configurable parameters can be accessed for reading or writing through the communication port. Broadcast commands are supported as well (address 0).
The available Modbus commands are:
01 – Read Coils
03 – Read Holding Register
05 – Write Single Coil
06 – Write Single Register
HOLDING REGISTER TABLE
Follows a description of the usual communication registers.
For the full documentation, download the Registers Table for Serial Communication in the N1500 section of our website: www.novusautomation.com.
All registers are 16-bit signed integers.

Write: Not allowed.
Range: The minimum value is in . The maximum value is in . The decimal point position depends on .
0003| PV| Read Normalized Process Variable.
Write: Not allowed.
Maximum range: 0 to 120000.
0004| Display Value| Read Current display value.
Write Current display value.
Maximum range: -31000 to 31000.
The range depends on the shown display.

SPECIFICATIONS

DIMENSIONS: …………… 48 x 96 x 92 mm (1/8 DIN). ………….. Approximate weight: 250 g
PANEL CUT-OUT: ……………………………… 45 x 93 mm (+0.5 -0.0 mm)
POWER: ……………………………….. 100 to 240 Vac/dc ±10 %, 50/60 Hz
Optional 24 V: ………………. 12 to 24 Vdc / 24 Vac (-10 % / +20 %)
Max. Consumption: ……………………………………………………. 7.5 VA
ENVIRONMENTAL CONDITIONS:
Operating temperature: ………………………………………… 5 to 50 °C
Maximum RH:
……….. 80 % up to 30 °C
………. For temperatures above 30 °C, decrease 3 % per °C
……… Installation category II, pollution degree 2, altitude < 2000 m
INPUT ……………….. Keyboard selection of input type (refer to Table 1 )
Internal resolution: ………………………………………… 128000 levels
Display resolution:
Temperature: ……………………………………………………………… 1 / 0.1
Other measures ………………………….. 1 / 0.1 / 0.01 / 0.001 / 0.0001
Input sample rate: …………… 5 per second for Pt100 and T/C …… 15 per second to 0-50 mV, 4-20 mA, 0-5 V, and 0-10 V
Accuracy: ……. Thermocouples J, K, T, N: 0.25 % of span ±1 °C
……………………… Thermocouple E, R, S, B: 0.25 % of span ±3 °C
……………………… Pt100: 0.2 % of span
……………………. mA, mV, V: 0.2 % of span
Input impedance:
…………………………. 0-50 mV, Pt100 and thermocouples: >10 MΩ
………………………….. 0-5 V, 0-10 V: >1 MΩ
…………………………… 0-20 mA, 4-20 mA: 15 Ω (+2 Vdc @ 20 mA)
Pt100 measurement: ………… DIN 43760 standard (α = 0.00385)
Excitation current: …………………………… 0.750 mA. 3-wire circuit, cable resistance compensation
ANALOG OUTPUT:
…………………… 0-20 mA or 4-20 mA, 500 Ω max.
…………………… 4000 levels, Isolated
RELAY OUTPUT:
…………………… ALM1, ALM2: SPDT 3 A / 240 Vac (3 A / 30 Vdc Res.)
…………. ALM3, ALM4: SPST-NO: 1.5 A / 250 Vac (3 A / 30 Vdc Res.)
AUXILIARY POWER SUPPLY: ………………….. 24 Vdc, ±10 %; 25 mA
EMC: …………………………. EN 61326-1:1997 and EN 61326-1/A1:1998
SAFETY: ……………………. EN61010-1:1993 and EN61010-1/A2:1995
SPECIFIC CONNECTIONS FOR TYPE FORK TERMINALS OF 6.3 MM.
FRONTAL PANEL: ……………………….. IP65, polycarbonate UL94 V-2.
HOUSING: …………………………………………. IP20, ABS + PC UL94 V-0.
START-UP: 3 seconds after power up.
CERTIFICATIONS:

ORDERING INFORMATION

A: Series model: N1500
B: Relays outputs: Blank (2 relays); 4R (4 relays)
C: Analog output: RT – (Retransmission of the input signal) or Blank
D: Digital Communication: 485 – (RS485, Modbus protocol) or Blank
E: Voltage rating: Blank (100-240 Vac/dc); 24V (12 to 24 Vdc / 24 Vac)

WARRANTY

Warranty conditions are available on our website www.novusautomation.com/warranty.

References

• NOVUS Automation Inc. - Controllers, Thermostats, Data Loggers, Solid State Relays, Sensors, Transmitters, SCADA, Data Acquisition and Temperature Controllers
• NOVUS Automation Inc. - Controllers, Thermostats, Data Loggers, Solid State Relays, Sensors, Transmitters, SCADA, Data Acquisition and Temperature Controllers

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