• Spans from 6.25% to 100% of T/C Range
• Linearized for J, K, R, S, T, E, and N Thermocouples
• Provides a Fully Isolated DC Output Proportional to T/C Input
• Plug-In Output Terminal Block
• Standard DIN-Rail Mount with Easy Snap-On Snap-Off 
• Connections and Ranging Readily Accessible from the Front
• User-Settable Input and Output Ranges
• Fully Labeled Jumper Positions for Easy Range Settings
• Choice of Power Options
• User Write-On Label
• Permanent Warranty

The DM4130 provides an isolated voltage or current output proportional to temperature as measured with a thermocouple. Any thermocouple may be used, and types J, K, R, S, T, E, and N can be linearized.

A microprocessor controls span and offset settings, performs cold junction compensation calculations, and performs a table look-up for linearization.

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 terminal blocks. The lower terminal blocks allow the product to be removed without unwiring the connections.

TYPICAL APPLICATIONS
Useful for temperature monitoring, control and data acquisition.

INPUT Span Adjustment Minimum (5 mV input minimum) Maximum 100% of T/C range Offset Adjustment 0% to 90% of T/C range COLD JUNCTION COMPENSATION ± 0.25°C accuracy IMPEDANCE 1 megohm UPDATE PERIOD 4/sec 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 rms sine wave ACCURACY ±0.1% of span LINEARIZATION + 0.25°C of NIST tables full range of J, K, R, S, T, E, N COMMON MODE REJECTION >120 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)

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

Shield T/C Input + No Connection T/C Input - Output + Output - Power AC L1 or DC + Power AC L2 or DC -