102
6.6.1
External wiring of the NZ2GF2B-60TCTT4
(1) In the temperature input mode
*1
Be sure to use the shielded compensation lead wire.
Use the compensation lead wire for the cable of the thermocouple. If the compensation lead wire is not used, and when the
cold junction temperature compensation resistor is away from the end tip of thermocouple, the (ambient) temperature
difference may lead to a faulty temperature process value (PV).
L1
L2
L4
COM-
CH1+
CH1-
CH2+
CH2-
CH4+
CH4-
Filter
Filter
Filter
Internal
circuit
Internal
circuit
Internal
circuit
*1
*1
Temperature
measurement object
Unused
NZ2GF2B-60TCTT4
NZ2GF2B-60TCTT4
Reference junction
Compensation lead wire (OK)
Shielded cable (NG)
Cold junction temperature
compensation resistor
(Ambient) temperature difference
Terminal block
A: Reference junction of the
thermocouple
B: Cold junction temperature
compensation resistor
A
B
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