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4-digit load cell indicator/controller
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The DPM4004 load cell indicator is an easy-to-use precision programmable digital indicator for load cell & strain gauge applications. Inputs to the instrument include load cell input (6 wire) and two digital inputs for remote tare and remote peak hold reset (optional). The excitation includes sense feedback to compensate for cable voltage loss. Digital filtering for better stability and tare function is included as standard. Options include programmable analogue output, set-points (up to four alarms), peak or valley hold, RS-232/485 serial interfaces & more.

A feature of these programmable indicators is the calibration method. The instrument can be pre-calibrated without load cell connections for zero & full scale values, & then on-site calibration can be done for deadweight offset & span calibration (single point test weight trim).

  • User selectable excitation for normal or barriered applications (Atex applications)
  • 5Vdc excitation is selected)
  • Low cost - high performance design
  • Simple on-site calibration for deadweight & single point span calibration
  • 4-wire bipolar excitation (6 wires total)
  • Meets European EMC directive 89/336/EEC


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 : 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 : 95V - 265Vac/dc Isolated supply, 10VA max, powers 4 load cells.
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


Accuracy & linearity 0.05% of full scale, ± 1 display count
Digital filter Low pass with user selectable values
Input impedance 20 MO
Memory retention Full non-volatile operation
Sensitivity adjust 1 mV/V, 2 mV/V, 3 mV/V and 10 mV/V (2 mV/V default)
Span drift 20 ppm / °C typically
Warm up time 20 minutes
Zero drift 0.1µV / °C typically


Digital input no. 1 Remote input for tare
Digital input no. 2 (optional) Remote input for peak / valley reset


10V 4 x 350O load cell
10V 4 x 1000O load cells
Load cell connection 6 wire + shields (sense included)

Set Point 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

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

Analogue Outout Options

Analogue output accuracy 0.1% of full scale
Analogue output isolation Optional, 1500V input/output isolation (order option 3006)
Analogue output resolution 12 bits
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

A/D Converter

A/D conversion rate Approximately 5 per second
A/D Type 16 bit dual slope
Resolution 40 000 internal counts

RTD Input Specifications

Setup and calibration Full digital with visual prompting in plain messages

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 - DPM3020, DPM3022

For more information, click here.

Download DPM4004 Datasheet