Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 78)

IM 11M12A01-03E 5-6
5.2.2 Connection to the Detector
To connect cables to the detector, proceed as follows:
(1) Mount conduits of the specified thread size or cable glands to the wiring connections
of the detector.
The detector may need to be removed in future for maintenance, so be sure to allow
a sufficient cable length.
(2) If the ambient temperature at the location of wire installation is 80 to 150
Њ C, be sure
to use a flexible metallic wire conduit. 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) Figure 5.6 shows the layout of the detector terminals.
CELL ϩ
TC ϩ (with Si TUBE)
TC Ϫ
TC CELL CJ
1 2 3 4 5 6
8 7
H T R
CELL
(+)
CELL
(-)
TC
(+)
TC
(-)
CJ
(+) CJ
(-)
HTR HTR
F5.6E.EPS
To the
converter
or the
terminal box
To the
ground
To the
converter
or the
terminal box
Figure 5.6 Detector terminals
The sizes of the terminal screw threads are M3.5 except for the M4 on grounding
terminal. Each wire in the cable should be terminated in the corresponding size of
crimp-on terminal(*1).
*1 If the ambient temperature at the detector installation site exceeds 60
Њ C, use a “ bare
crimp-on terminal”.
(4) Except when a “600V silicon rubber insulated glass braided wire” is used, connect
the cable shield to the FG terminal of the converter.