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DIN Rail Resistance and Potentiometer Input Signal Conditioners

Resistance and Potentiometer Input Signal Conditioners

Item# DRF-POT-24VDC-0/100P-4/20

Resistance and Potentiometer Input Signal Conditioners DRF-POT-24VDC-0/100P-4/20 DRF-POT-24VDC-0/100P-4/20
  • Resistances between 1 K Ω and 10 K Ω
  • Excitation Current 0.2 mA
  • Potentiometers between 100 min and 1 M Ω max
  • Response Time < 70 mS
  • Accuracy 0.2%
  • Galvanic Isolation Between Input, Output and Power

The DRF series DIN rail signal conditioners are designed to accept a broad range of input signals, such as ac and dc voltage and current, frequency, temperature (thermocouple and RTD), and process transducers, and provide standard process outputs of either 4 to 20 mA, or 0 to 10 Vdc. The DRF series feature a modern housing design, that is easily mounted on standard 35 mm DIN rails. Connections are safely and securely made through pluggable screw terminal connectors, with input and output connections on the opposite sides of the module.

The DRF-RES and DRF-POT signal conditioners accept resistance and potentiometer input respectively and provide an isolated 0 to 10 Vdc or 4 to 20 mA output.

The DRF-RES is available with four standard ranges from 0 to 1500Ω to 0 to 10,000Ω. The DRF-POT can work with a variety of potentiometers from 100Ω up to 1 MΩ.

Models are available with three different power options, 24 Vdc, 120 Vac and 240 Vac. The DRF-RES and DRF-POT are ideally suited for industrial applications. All models mount on a standard 35 mm DIN rail and provide galvanic isolation between input, output and power up to 3500 Veff (model specific). Module response time is 70 ms or less.

Range Code Table for DRF-RES
Range CodeRange
0/1.5K0 to 1500Ω
0/3K0 to 3000Ω
0/5K0 to 5000Ω
0/10K0 to 10000Ω


  DRF-RES: 2 wire
  DRF-POT: 3 wire
Accuracy: <0.2% full scale
Linearity: <0.1% full scale
Thermal Drift: 250 ppm/°C typical (max <200ppm/°C)
Response Time: <70 mS (90% of signal)

Power: 24 Vdc ±10%, 230 Vac ±10% 50/60 Hz, 115 Vac ±10% 50/60 Hz
Power Consumption: <3.8 VA

Output: 4 to 20 mA and 0 to 10 Vdc
Maximum Voltage Output: 11 Vdc approx.
Minimum Voltage Output: -1 Vdc approx.
Minimum Load Resistance (Voltage): >1 KΩ Maximum Current Output: 22 mA approx.
Maximum Current Output: -1.5 mA approx.
Maximum Load Resistance (current): >400 Ω

Electrical Connections: Plug-in screw terminals
Protection: IP-30

(DC Powered Models): 120 g (4.2 oz)
(AC Powered Models): 200 g (7 oz)
(DC Powered models):
110 H x 22.5 W x 93 mm D (4.3 x 0.9 x 3.7")
(AC Powered models):
110 H x 37 W x 93 mm D (4.3 x 1.46 x 3.7")
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)
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