EM-M21A Current Loop Converter

EM-M21A is a multiscale converter for thermal transducer Pt-100. Pt-100 transducer is connected to converter with three wires. In this way the cable resistance is compensated. The converter has four selectable temperature ranges and a -50 °C settable offset. The gain and zero adjustments have no mutual effect. The output signal is 4...20 mA current signal, and the unlinearity of the Pt-100 is already corrected in the converter. The converter acquires its operating voltage from the current loop and needs no additional supply. EM-M21A can be connected as a voltage transmitter 1...5 V according to the figure below. Converter is efficiently protected against misconnections and voltage surges.


 

TECHNICAL DATA

Supply12...32 Vdc
Temperature Ranges0...100 °C
0...200 °C
0...300 °C
0...400 °C
-50...+50 °C
-50...+150 °C
-50...+250 °C
-50...+350 °C
Output Signal4...20 mA / 1...5 V
Linearity Error< 0.1 %
Thermal Drift< 100 ppm/°C
Cable Compensation0.1 %/10 ohm (Rc)
Transducer Supplyapprox. 1 mA
Loop Resistance0...700 ohm (24 V)
Oper. Ambient Temp.0...60 °C

Product files

EN_em-m21a.pdf (52,32 KB)
Stock: 9 pcs.
67,00 €
VAT 0%

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