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4-digit universal tempature indicator
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The DPM4003 is a 4 digit (-1999 to 9999) LED universal temperature indicator that can be used in any application where temperature needs to be displayed and controlled. This DIN 48mm x96mm, high accuracy, high-quality panel meter is designed for accurate measurement & display (in °C, °F or K) of temperature from thermocouples (selectable from the front push buttons) of Type J, K, N, R, S, T, W5 and from RTDs such as PT100. Ni100 RTD is available as an option as well as other thermocouple types.

The thermocouple and RTD signals are accurately linearised by the internal micro-controller. Options include programmable analogue output, single, dual, three & four alarms, peak hold, RS-232/485 output and more.

  • Front panel IP65 / NEMA 4 / UL Type 4 rating,
  • -1999 to 9999 display counts
  • Touch button programmable
  • Programmable for °C, °F, and K
  • Programmable for TC of Type J, K, N, S, R, T, W5
  • Programmable for RTDs such as Pt100
  • ‘Plug & Play’ feature available with selected options
  • Other thermocouples and RTDs available as an option
  • Low cost - high performance design
  • Keypad lockout (Standard)
  • Meets European EMC directive 89/336/EEC & Low Voltage directive 73/23/EEC
  • Customizable to suit your requirements


Display 4 digit : -1999 to 9999
Display Colour : Red
Display Size : 14.2mm
Display Type : 7 Segments LED
Enviromental Humidity : < 85% non-condensing
Enviromental Operating temperature range : -10 to +50°C
Enviromental Service temperature range : -15 to +60°C
Enviromental Storage temperature range : -40 to +80°C
Front panel rating IP 65 / NEMA 4 / UL Type 4 with supplied o-ring seal
Mounting Panel Mounted
Physical Cut out Size : 48mm x 96mm
Physical Size : 48mm x 96mm x 147mm
Physical Weight : approx. 385g (no options fitted)
Power Supply Optional : 10 - 30Vdc isolated switch mode power supply option (Option 3008), 5VA typical
Power Supply Optional : 8 - 30Vdc isolated switch mode power supply option (Option 3008), 5VA typical 95V-265Vac/dc switch mode power supply option (Option 3010), 5VA typical
Power Supply Standard : 115 / 230Vac ± 10% (standard), link selectable, 50/60Hz, 5VA typical 8 - 30Vdc non-isolated on request, 5VA typical (Option 3028)
Protection UL94V-0 : Flame retardant ABS plastic housing
Regulatory compliance Complies with EC Directives 89/336/EEC & 73/23/EEC
Regulatory compliance Complies with EC Directives 89/336/EEC & 73/23/EEC
Supply Standard : 95 to 265Vac/dc


A/D conversion rate Approximately 7 per second
A/D Type & resolution 16 bit dual slope, 40 000 internal counts
Power-up / self test time 1 - 3 seconds
RTD input accuracy 0.3°C, ± 1 display count
Settling time 1 second
Temperature coefficient 20 ppm / °C typically
Thermocouple input accuracy 0.5°C, ± 1 display count (note 1)
Warm up time 15 minutes typically


Ni100 (optional) -60.0°C to +235.0°C
Note 1 Overall accuracy is dependent on the thermocouple type. The table below lists the designated minimum standard error of some thermocouple types:
Note When the instrument is first installed, it may take a few minutes before accurate readings are shown. This is normally due to the different temperatures between the instrument, panel and thermocouple cable, and these temperature have to stabilise for the cold junction compensation circuit to measure the correct temperature. *** This instrument is designed for non-grounded thermocouple probes only. ***
PT1000 (optional) -165.0°C to +600.0°C (max 999.9°F)
PT100 -165.0°C to +600.0°C (max 999.9°F)
PT500 (optional) -165.0°C to +600.0°C (max 999.9°F)
RTD resolution 0.1°C
TC resolution 1°C (Type T+ is 0.1°C)
Type J -25°C to +900°C
Type K -25°C to +1275°C
Type N +200°C to +1200°C
Type R +625°C to +1750°C
Type S +625°C to +1750°C
Type T+ -35.0°C to 330.0°C
Type T- -235°C to +25°C
Type W5 +1150°C to +2050°C
Type: J : Minimum Std Error: ±2.2C
Type: K : Minimum Std Error: ±2.2C
Type: R: Minimum Std Error: ±1.4C
Type: S: Minimum Std Error: ±1.4C
Type: T: Minimum Std Error: ±0.8C

Set Point Options

Electro-mechanical relay 250Vac, 30Vdc, 2A
Electro-mechanical relay Form type : Form C (change-over contact)
Solid state 400Vac/dc, 0.5A
Solid state Form type : Form A (normally open contact)

Serial Interface Options

Capabilities - Asciibus protocol - continuous output approximately 5 x second
Capabilities - Asciibus protocol - output on demand via print button
Capabilities - Asciibus protocol - output on demand via serial request
Capabilities - Digibus protocol Full remote control, except for field setup
Isolation to input Optional, 1500V isolation (order option 3006)
Serial interface RS-232 or RS-485, 2400, 4800, 9600 & 19200 baud


Memory retention Full non-volatile operation
Setup and calibration Full digital with visual prompting in plain messages

Analogue Outout Options

Analogue output accuracy 0.1% of full scale, 12-bits
Analogue output isolation Optional, 1500V input/output isolation (order option 3006)
Analogue output temp. coefficient 20 ppm / °C typically
Current analogue output load 500O maximum (current is source, not sink)
Voltage analogue output load 1kO minimum

This Product is available in the following options:

  • DPM3006 - Isolated outputs (order with 3002/3/13)
  • DPM3009 - Parallel BCD output (cannot be ordered with any alarm options, option 3006 or with option 3022)
  • DPM3012 - Peak / valley hold
  • DPM3014 - Auto zero (with remote zero)
  • DPM3025 - Keypad lockout Standard
  • DPM3026 - Display hold
  • Setpoint - Alarms - DPM3001P, DPM3001M, DPM3004P, DPM3004M, DPM3017M, DPM3017P, DPM3018P, DPM3018M
  • Outputs - DPM3002, DPM3013
  • Power Supply - DPM3008, DPM3010
  • Displays - DPM3019, DPM3022

For more information, click here.

Download DPM4003 Datasheet