• 100 ohm to 100 kilohm Potentiometer
• Selectable Response Time/Filter
• Provides a Fully Isolated DC Output Proportional to Wiper Position
• User Write-On Label
• User-Settable Input and Output Ranges
• Fully Labeled Jumper Positions for Easy Range Settings
• Plug-In Terminal Blocks
• Standard DIN-Rail Mount with Easy Snap-On Snap-Off
• Connections and Ranging Readily Accessible from the Front
• Choice of Power Options
• Permanent Warranty

The DM4003 provides an isolated voltage or current output proportional to the position of a potentiometer wiper. The output is fully isolated from input, line power and ground. The unit is useful in eliminating ground loops and common mode signals.

Input and output ranges are user settable. The output response may be normal or reverse-acting. A fully-labeled set of jumpers selects the input and output ranges.

All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning. It utilizes a feedback VCO to develop a pulse train with a duty cycle proportional to the input signal amplitude. This pulse train is coupled through a pulse transformer to the output circuitry, where the duty cycle data is converted to a proportional DC output level.

Connections are made via two 4-pin plug-in terminal blocks. These terminal blocks allow the product to be removed without unwiring the connections.

TYPICAL APPLICATIONS
A useful interface for monitoring valve and actuator position, or for generating test signals.

INPUT Input Potentiometer Value 100 ohm to 100 kilohm Excitation 1 VDC Span Selections for Full Scale Output (% rotation) 25%, 50%, 75% & 100% Offset ±0% to 100% of span OUTPUT Voltage 0/.25 V 0/1 V 1/5 V 0/5 V 0/10 V -5/+5 V -10/+10 V Current 0/1 mA 0/4 mA 4/20 mA 0/20 mA OUTPUT LOGIC Normal or Reverse Acting DRIVE CAPABILITY Voltage 5 mA Current >24 V compliance OUTPUT RIPPLE (Peak-to-Peak) <0.1% of full scale ISOLATION Resistance >500 megohms Voltage Rating >1000 VAC sinewave

RESPONSE TIME (99%) 2, 20, 50, 500 milliseconds ACCURACY ±0.1% of span LINEARITY ±0.1% of span COMMON MODE REJECTION >100 dB, DC to 60 Hz OPERATING TEMPERATURE 14 to 140 °F/-10 to 60 °C TEMPERATURE STABILITY ±0.01% of span/°C POWER Standard 115 VAC + 10%, 50/60 Hz 230 VAC + 10%, 50/60 Hz Optional 115/230 VAC Selectable ±10%, 50/60 Hz 24 VAC + 10%, 50/60 Hz 24 VDC (21 to 32 VDC) 12 VDC (10 to 16 VDC) Wattage 2.5 W max

Terminal 1 Terminal 2 Terminal 3 Terminal 4 Terminal 5 Terminal 6 Terminal 7 Terminal 8

Input FS Input Wiper Input Zero Shield Output + Output - Power AC L1 or DC + Power AC L2 or DC -