YOKOGAWA av550g, Руководство пользователя

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< 5. Wiring >
5-5
IM 11M12D01-01E
5.2 Wiring for the Averaging Converter and Peripheral
Devices
5.2.1 Preparation for Wiring to the Averaging Converter
Follow the instructions below when connecting cables to the averaging converter.
(1) The terminal screws on the control and channel cards are M3.5, and all the other terminal screws
are M4. Each wire should be terminated with a crimp terminal appropriate to the screw.
(2) If a silicone rubber insulated glass fiber braided wire is used for wiring to the detector, run the
wiring through a terminal box. It is recommended that a cable that withstand temperatures of
at least 80°C be used between the terminal box and the averaging converter. This is to prevent
moisture or corrosive gases from entering into the averaging converter and to ensure the
grounding of the detector.
5.2.2 Preparation for Wiring to Detectors
Follow the instructions below when connecting cables to detectors.
(1) Install a conduit or cable gland appropriate to the specified screw size to the cable inlet of a
detector. Allow for the sufficient length of a cable in case that the detector needs to be removed
for maintenance.
(2) If the ambient temperature around the wiring lines exceeds 75°C, a flexible metal conduit tube
must be used. If an unshielded 600 V silicon rubber insulated glass fiber braided wire is used,
keep the wire away from noise sources to avoid noise interference.
(3) Figure 5.4 shows the layout of the detector terminals.
The sizes of the terminal screws are M3.5. Each wire should be terminated with a crimp terminal
appropriate to the screw.
If the ambient temperature at the detector installation site exceeds 60°C, use a “burl crimp-on
terminal”.
CELL +
TC +
TC –
TC CELL CJ
1 2 3 4 5 6
8 7
H T R
CELL
(+)
CELL
(-)
TC
(+)
TC
(-)
CJ
(+)
CJ
(-)
HTR HTR
To Converter,
or
Terminal Box
To Converter,
or
Terminal Box
To Ground
F5-4E.ai
Figure 5.4 Detector Terminals