• Provides DC Output Proportional to a DC Voltage or Current Input
• Fully Isolated Input/Output
• Unlimited Choice of Input Ranges via Interchangeable Range Cards (Within specified range limits)
• Reverse Polarity Protected
• Test Points for Loop Current Monitoring without Breaking Loop Circuit
• 50 mm Diameter Case - 33 mm Mounting Hole Spacing
• NEMA-4 Connection Head and Explosion-Proof Housing Available
• Low Cost
• 5 Year Warranty

The SR2101 is a low-cost, reliable, DC input two-wire transmitter for field or panel   mounting in various industrial housings and enclosures. It provides a DC output current (4/20 mA) proportional to an DC voltage or current input.

The output is galvanically isolated from the input.

Test points located on the SR2101 front panel allow monitoring of loop current value, using a current meter, without breaking the loop.

A plug-in range card permits user ranging to the required voltage or current input range. The output ZERO and SPAN controls are accessible through the top of the case.

The SR2101 is enclosed in an extruded aluminum housing with an aluminum back. A DIN rail mounting clip is available.

TYPICAL APPLICATIONS
Remote data acquisition. Distance limited by wire resistance. Voltage to current conversion. Isolation between input and output. Elimination of ground loops.  Measurement of signals with high common mode voltages.

All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning.

INPUT RANGE Voltage any range between ±128V max (min. full scale span 16 mV) Current (internal shunt) any range between ±0.1 A max (min. full scale span 10 uA) INPUT OFFSET can cancel any offset from -100% to +100% of span INPUT IMPEDANCE Voltage In < 1 V: > 10 megohms Voltage In > 1 V: > 1 megohm Current In: range dependent Current Input Input Shunt Value 0/1 mA - 100.0 Ohm 0/5 mA - 49.9 Ohm 4/20 mA - 61.9 Ohm 10/50 mA - 20.0 Ohm 1/100 mA - 20.0 Ohm OUTPUT RANGE 4/20 mA Current Limited = 28 mA ISOLATION Output / Input 1000 Volts RMS sinewave

MAX LOAD RESISTANCE = [(V supply - 10)/20 mA] kilohms RESPONSE TIME (Range Dependent) - Step Change 150 ms for 99% of final value ACCURACY ±0.1% of span LINEARITY Better than ±0.05% of span COMMON MODE REJECTION 120 dB, DC to 60 Hz OPERATING TEMPERATURE -13°F to 176°F/-25°C to 80°C TEMPERATURE STABILITY ±0.015% of span per °C POWER 10 to 36 VDC, Polarity-Protected SUPPLY VOLTAGE EFFECT 0.02% of span max, 10 to 36 V