Print Load Cell Items



  • Analog Output Board is Plug & Play Field Installable
  • 16-bit resolution (1 part in 65,536 or 0.0015% of full scale)
  • 4-20 mA, 0-20 mA, 0-10V, or bipolar -10 to +10V analog output
  • Analog output linearized to reading
  • Analog output isolated to 250 Vac
  • ±0.02% full scale accuracy
  • Scale and offset via meter front panel, RS232, RS485 or USB
  • 50 Hz or 60 Hz update rate
  • 12V compliance at 20 mA
  • Output derived from filtered or unfiltered signal input
  • Certified EN 61010-1 (CE Mark) and RoHS

DPM-3 Option H


A 16-bit analog output option board can turn a 1/8 DPM-3 digital panel meter, into a superb, isolated, linearized digital panel meter or signal conditioner with exceptional accuracy and high-speed response.

The analog output can be selected as 4-20 mA, 0-20 mA, unipolar 0-10V, or bipolar -10V to +10V with a 20V span and 0V at mid-range. If a voltage output is selected, output pins 1 and 2 may be reversed to provide reversed polarity.

A 16-bit D-to-A converter provides 0.0015% full-scale resolution and ±0.02% full-scale accuracy. The update rate for meters is a fast 60/sec for 60 Hz power or 50/sec at 50 Hz power. The analog output can track the unfiltered signal for fastest response, or a digitally filtered signal for best noise rejection.

Isolation from power and signal is provided by a separate power supply in the meter. This supply can drive 20 mA of current into loads up to 600 ohms for 12V compliance. Isolation to signal ground and power ground eliminates problems caused by ground loops.

Scaling of the analog output can be via the meter's front panel pushbuttons or a serial digital interface using Instrument Setup software. The displayed readings to produce the low and high analog outputs can be set to any value from -99999 to +99999 for DPMs or from -999999 to +999999 for counters and timers. Depending on your selected output range, simply set the meter reading for low analog output (4 mA, 0 mA, 0V or -10V) and for high analog output (20 mA or 10V).

bipolar analog output The bipolar -10V to +10V analog output can provide a negative signal for a negative deviation from a setpoint, and a positive signal for a positive deviation. It can also be used for proportional control around a setpoint. For example, if proportional control is desired around 170°C with a ±10°C span, set the -10V output to 160°C and the +10V output to 180°C. The control signal will be 0V at 170°C.



Power source Provided by meter
Signal source Filtered or unfiltered digitized signal
Output linearization Linearized to reading
Output Levels (selectable) 4-20 mA, 0-20 mA, 0-10V, -10 to 10V
Compliance at 20 mA 12V ( 600 Ω max load )
Compliance at 10 V 2 mA ( 5 kΩ min load)
Isolation 250V rms working, 2.3 kV rms per 1 min test
Output resolution 16 bits (0.0015% of full scale)
Output nonlinearity < 0.01% of full scale
Accuracy < 0.02% of full scale
Output update rate 50 or 60/sec (output may be digitally filtered)
Output update rate Gate time + 30 ms + 0-2 periods


Zero output & full-scale output, DPMs -99,999 to +99,999 counts
Minimum span 150 counts

J4 Pin Assignments

Unipolar Connections Bipolar Connections
4-20 mA or 0-20 mA output 1 Unipolar Connections Reference or Return 1 Bipolar Connections
0-10V output 2 -10V to +10V Output 2
Isolated ground 3 N/C 3
DPM-OPT-H N/A 139.00