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Potentiometer Input to DC Transmitters


Item# DMD4008-DC

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $463.23
10-24 $440.07
25-49 $430.80
50-99 $412.27
100+ $403.01

In stock

Lead Time (If not in stock): 5 weeks
Potentiometer Input to DC Transmitters DMD4008-DC DMD4008-DC
  • For use with Linear Potentiometers or Rotary Potentiometers
  • Voltage, Bidirectional Voltage or Current Outputs
  • Quick Field Setup for Hundreds of I/O Ranges
  • External Switches and Table for Range Selection

DMD4008-DC Model Options

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Input Voltage
Warning WARNING: This product can expose you to Nickel, a chemical known to the State of California to cause Cancer or birth defects or other reproductive harm. For more information go to

  • Housing Material Mounts to standard 35 mm DIN rail
  • Maximum Ambient Temperature -10°C to 60 operating ambient better than ±0.02% per°C stability
  • Retransmission/Analog Output Voltage: 0-1 V to 0-10 Vdc
OMEGA's DMD4008 accepts a resistance input from potentiometer, slidewire, linear position, displacement, or rotational devices and provides an optically isolated DC voltage or current output that is linearly related to the potentiometer position. It will accept any potentiometer with a value of 0 to 100 ohms through 0 to 1 Megohms without recalibration and without affecting accuracy. The DMD4008 output can be field configured via external rotary and slide switches, Offsets and/or input ranges other than 0 to 100% of the potentiometer range can also be selected.

Potentiometer Input Ranges: Field selectable ranges via switch settings 3 wire connection required
    Minimum: 0 to 100 Ω
    Maximum: 0 to 1 Megohms
    Input Span: 10 to 100% of potentiometer range
    Input Offset: 0 to 90% in 10% increments
Input Impedence: 10 Megohms minimum
Output Ranges: Field selectable ranges via switch settings
    Voltage: 0-1 V to 0-10 Vdc, 10 mA maximum
    Bipolar Voltage: ±5 Vdc or ±10 Vdc
    Current: 0-2 mADC to 0-20 mAdc 20V compliance, 1000 Ω at 20 mA
Output Linearity: Better than ±0.1% of span
Output Zero and Span: Multi-turn potentiometers to compensate for load and lead variations, ±15% of span adjustment range typical.
Output Loop Supply Power: 20 Vdc nominal, regulated, 25 mAdc maximum, ripple, less than 10mVrms may be selectively wired for sinking or sourcing mA output
Output Test: Front button sets output to test level when pressed, potentiometer adjustable 0 to 100% of span
Response Time: 70 milliseconds typical
Common Mode Rejection: 120 dB minimum
Isolation: 1200 Vrms minimum
    Full Isolation: power to input, power to output, input to output
Ambient Temperature Range and Stability: -10°C to 60 operating ambient; better than ±0.02% per °C stability
Standard Power: 60 to 265 Vac, 50/60 Hz or 85 to 300 Vdc, 2W maximum
Low Voltage Option: 9 to 30 Vdc, or 10 to 32 Vac
Housing: Mounts to standard 35 mm DIN rail, IP40 environmental rating
Connectors: Four 4-terminal removable connectors 14 AWG maximum wire size
Dimensions: 22.5 W x 117 H x 122 mm D (0.89 x 4.62 x 4.81') height includes connectors
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