power supply is two-wire system, non-explosion-proof instrument voltage 10-35 VDC, explosion-proof instrument voltage 10-30 VDC1 ,2-
TMT181 can connect thermocouple or thermal resistance thermocouple: 4 ,6-
Two-wire thermal resistance: 3 and 6 terminals
Three-wire thermal resistance: one end is connected to 3, and the other end is connected to 5 and 6.
Four-wire thermal resistance: two wires at one end are connected to 3 and 4, and two wires at the other end are connected to 5 and 6.
