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4-digit dual input process indicator
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The DPM4015, 4 digit (-1999 to 9999), LED Dual Channel Process Indicator can be applied to many applications which require a dual input and a single display eg. temperature and humidity monitoring. Each channel is individually setup for zero , span, input type and more. The unit boasts a number of useful mathematical functions such as addition, subtraction, multiplication and division. The display as well as alarms, analogue out and peak hold can be selected using channel A, Channel B and the above mentioned mathematical functions. Options include linearisation, analogue output and set-points up to a total of four. Excitation is standard and link selectable for 2-wire / 3-wire transmitters and a potentiometer input. Selected options now feature ‘Plug & Play’ technology, allowing option boards to be ordered separately & field fitted when required

  • Front panel IP65 / NEMA 4 / UL Type 4 rating,
  • 4 Digit : -1999 to 9999 display counts
  • Dual channel process inputs of 0 - 20mA, 4 - 20mA and Volt input
  • Dual 24Vdc supply for 2 / 3 wire transmitters
  • Low cost - high performance design
  • Built in mathematical features such as adding (summing) / subtracting
  • (Differential),multiplication and division of both inputs
  • Keypad lockout standard
  • Meets European EMC directive 89/336/EEC & Low Voltage directive 73/23/EEC
  • Customizable to suit your requirementsts


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)
Protection UL94V-0 : Flame retardant ABS plastic housing
Regulatory compliance Complies with EC Directives 89/336/EEC & 73/23/EEC
Supply Standard : 95 to 265Vac/dc


Accuracy & linearity 0.05% of full scale, ± 1 display count


Link selectable for 24Vdc (17-26V), current limited. (For 2-wire transmitters). 5Vdc ± 1%. Maximum 25mA. 2.5Vdc precision reference, 2mA maximum for potentiometer (2kO pot minimum).
Option 24Vdc (17-26V), increased current capacity 100mA with option 3010.

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
Specifications Full digital with visual prompting in plain messages

Analogue Input Ranges

0 - 10 V Input impedance 500kO
0 - 2 V Input impedance 100kO
0 - 20 mA Input impedance 100O
0 - 200 mV Input impedance 100kO
4 - 20 mA Input impedance 100O
A/D conversion rate Approximately 7 per second
A/D Type & resolution 16 bit dual slope, 40 000 internal counts
Note Other ranges on request
Note These inputs are all standard and are link selectable, with programmable zero, span and decimal point.
Potentiometer Input impedance 100kO
Power-up / self test time 1 - 3 seconds
Settling time (frequency input) 5 msec (no averaging)
Settling time (process inputs) 0.5 seconds
Temperature coefficient 20 ppm/°C typically
Warm up time None required

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

Setput Options

Adjustable settings Hysteresis, on delay, hi/lo, normally open/closed
Electro-mechanical relay Form type: Form C (change-over contact)
Electro-mechanical relay Rating: 250Vac, 30Vdc, 2A, power factor 1
Solid- state relay Form type: Form A (normally open contact)
Solid- state relay Rating: 400Vac/dc, 0.5A, power factor 1

Power Supply

Optional 10V-30Vdc isolated switch mode power supply option (Option 3008), 5VA typical
Optional 8V-30Vdc non-isolated dc power supply (Option 3028), 5VA typical
Optional 95V-265Vac/dc switch mode power supply option (Option 3010), 5VA typical
Standard 115 / 230Vac ± 10% (standard), link selectable, 50/60Hz, 5VA typical

This Product is available in the following options:

  • DPM3000 - Lineariser (square root / sphere / & more)
  • DPM3003 - 0 - 20mA / 4 - 20 mA analogue output
  • 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
  • DPM3028 - 10 - 30Vdc non isolated dc supply
  • Setpoint - Alarms - DPM3001P, DPM3001M, DPM3004P, DPM3004M, DPM3017P, DPM3017M, DPM3018P, DPM3018M
  • Outputs - DPM3002, DPM3013
  • Power Supply - DPM3008, DPM3010
  • Displays - DPM3020

For more information, click here.

Download DPM4001 Datasheet