Omega manual Installation, Wiring the TX91 Refer to Figure

3Installation

3.2Wiring the TX91 (Refer to Figure 3-5)

1.Connect a DC power supply in series with the load to the (+PS) and (-PS) power terminals. Note that the load (usually a monitoring instrument) may be connected to either the (+) or (-) power lead.

2.Connect the thermocouple to the (+IN) and (-IN) input terminals.

NOTE

A milliamp monitoring instrument can be used in the circuit by connecting the monitor’s positive lead to (+PS) and the negative lead to

15(M). This allows monitoring the current loop without disconnecting the main wiring.