Resistance Transmitter BRT143

The RESISTANCE TRANSMITTER BRT143 is primarily a 4-wire resistance or slidewire transmitter designed for 2 or 3-wire resistance input, process signal output matching the Series 100 process control module range. The resistance change is detected by applying a constant, load independent current to the field device which will result in a change of voltage on change of resistance. Two current ranges are available to suit the magnitude of resistance change. For resistances up to 100 ohm a fixed 20mA current source is supplied as the excitation. For resistances above 100 ohm a current excitation is supplied of a value to develope 2V across the input resistance at maximum value. Internal 15-turn trim adjustment allows for initial sensor match. For final field calibration the front accessible span and offset trimmers can be used. Lead breakage will cause the output to increase to maximum (30mA).The output signal level is indicated by L.E.D. on the front giving clear indication of module function, presence of signal and output loop closed (for current outputs only). RF and power transients protection is also standard as with all BASI modules. Various power supply choices are available ranging from 240Vac down to 8Vdc, all provide power isolation.

Files:
Product specification (pdf)

Product categories:
Back Panel Mount > DIN Rail Series 100

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