DIN Rail Mounted Transmitter for 2, 3, and 4 wire RTDs Conax Models: DRT2-RTD and DRT4-RTD

DIN Rail Mounted Transmitter for 2, 3, and 4 wire RTDs Conax Models: DRT2-RTD and DRT4-RTD

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Description

The Conax Model DRT2-RTD and DRT4-RTD are compact, DIN rail mounted transmitters for 2, 3, and 4 wire RTD sensors. The output is linear with respect to the sensor’s temperature. The 4-wire input circuitry provides near perfect compensation for the effect of long leadwire resistance.
The units are powered by standard industrial loop power supply and provide a 4-20mA output on a 2-wire transmitter system (DRT2-RTD) or any standard current or voltage output on a 4-wire system (DRT4-RTD).

Specifications
Input Pt-100, 2, 3, or 4-wire RTD.
Other Pt, Ni, NiFe, Cu RTDs, available
Input Temp Range -200°C (-328°F) to +850°C (1562°F)
Input Span  20°C Min. to 800°C Max.
Output
(DRT2-RTD) 2-Wire
(DRT4-RTD) 4-Wire
Current loop 4-20mA
0…1…4…20mA
0…1…2…6…10V
Linearity Better than 0.1%, referred to the sensor’s actual temperature

Lead Wire Error (4-Wire)

(3-Wire)

Negligible, for 4-Wire sensors

Better than 100:1 compensation

Temperature Stability <±0.01% of range/°F (100°C SPAN)
Power Supply Range 24 VDC ±20%, polarity protected
Adjustments ±25% on both ZERO and SPAN
Operating Temperature -20°C to 70°C (0°F to 160°F)
Mounting DIN rail 35 mm
Accuracy 0.1% of SPAN typical

 

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