Wiring For Power To Detector Heater; Cable Specifications; Connection To Detector - YOKOGAWA EXAxtZR Instruction Manual

5.3 Wiring for Power to Detector Heater

(1) Ambient temperature of the detector: 80 C or less
(2) Ambient temperature of the detector: exceeding 80 C
5.3.1

Cable Specifications

5.3.2

Connection to Detector

5-8
This wiring provides electric power from the converter to the heater for heating the
sensor in the detector.
Detector
HTR 7
HTR 8
Detector
HTR 7
HTR 8
Heat-resistant wiring
Figure 5.7 Wiring for power to the detector heater
Basically, PVC insulated PVC sheathed control cables (2 cores) are used for this wiring.
When the ambient temperature of the detector exceeds 80 C, install a terminal box, and
connect to the detector using six 600V silicon rubber insulated glass braided wires.
When connecting the cable to the detector, proceed as follows:
(1) Mount cable glands or conduits of the specified thread size to the wiring connections
of the detector.
The detector may need to be removed in future for maintenance, so be sure to allow
sufficient cable length.
(2) If the ambient temperature at the location of wire installation is 80 to 150 C, be sure
to use a flexible metallic conduit for the wire. If a non-shielded " 600V silicon
rubber insulated glass braided wire" is used, keep the wire away from noise sources
to avoid noise interference.
(3) The size of the terminal screw threads is M3. Each cable should be terminated in the
corresponding size crimp-on terminals contact (*1) respectively.
*1 If the ambient temperature at the detector installation site exceeds 60 C, use a " bare
crimp-on terminal".
Terminal box
Converter
HEATER
Converter
HEATER
F5.7E.EPS
IM 11M12A01-02E