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Introduction
1.1 General Description
The OMEGA
®
TX90 Series Temperature Transmitters consist of the
TX91 Miniature Two-Wire Thermocouple Transmitter and the
TX92 Miniature Two-Wire RTD Transmitter. This manual is written
for the OMEGA TX91 Thermocouple Transmitter.
The TX91 Transmitter accepts thermocouple sensor types J, K, T,
or E and will produce a standard 4-20 mA output signal propor-
tional to that produced by its attached input temperature sensor.
Transmission of the proportional current output may be
accomplished by using copper wires.