<5. Wiring>
5-7
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
(2) When the ambient temperature of the wiring installation is 75 to 150°C for the wiring of the
(3) When connecting the ground wiring to the ground terminal of the converter case, be sure
that the lock washer is in contact with the case surface (see Figure 5.5.).
5.2.4 Wiring for Power to Detector Heater
This wiring provides electric power from the converter to the heater for heating the sensor in the
detector.
ZR22G
Detector
ZR802G
Converter
(1) Ambient temperature of the detector: 75°C or less
(2) Ambient temperature of the detector: exceeding 75°C
Heat-resistant wiring
HTR 7
HTR 8
HTR 7
HTR 8
HTR
HTR
Terminal box
ZR22G
Detector
ZR802G
Converter
Figure 5.7 Wiring for power to detector heater
Cable Specications
Basically, cables (2 cores) that withstand temperatures of at least 80°C are used for this wiring.
When the ambient temperature of the detector exceeds 75°C, install a terminal box, and connect
to the detector using six-piece 600 V silicon rubber insulated glass braided wires.
5.2.5 Wiring for Detector Output
This wiring enables the converter to receive cell output from the detector, output from a
loop resistance or less. Keep detector wiring away from power wiring.
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