User Manual

<4. Wiring and Piping>
4-3
IM 21B04C01-01E
F0402.ai
Blind plug
Grounding
Input signal
Ground terminal
–
Figure 4.2 Wiring
(1) General-use Type and Intrinsically Safe
Type
Make cable wiring using metallic conduit or
waterproof glands.
• Apply a non-hardening sealant to the terminal
box connection port and to the threads on the
exible metal conduit for waterproong.
F0403.ai
Flexible metal conduit
Wiring metal
conduit
Tee
Drain plug
Apply a non-hardening
sealant to the threads for
waterproofing.
Figure 4.3 Typical Wiring Using Flexible Metal
Conduit
(2) Flameproof Type (JIS)
Wire cables through a ameproof packing adapter,
or using a ameproof metal conduit.
 Wiring cable through ameproof packing
adapter for only JIS ameproof type (see Figure
4.4).
• Use only ameproof packing adapters
approved by Yokogawa.
• Apply a nonhardening sealant to the terminal
box connection port and to the threads
on the ameproof packing adapter for
waterproong.
Flameproof packing
adapter
Flexible metal conduit
Wiring metal
conduit
Tee
Drain plug
Apply a non-hardening
sealant to the threads for
waterproofing.
F0404.ai
Figure 4.4 Typical Cable Wiring Using Flameproof
Packing Adapter
• Measure the cable outer diameter in two
directions to within 1 mm.
• Calculate the average of the two diameters,
and use packing with an internal diameter
nearest to this value (see Table 4.1).
Table 4.1 Flameproof Packings and Applicable
Cable Outer Diameters
Optional
Code
Wiring
Port thread
Diameter
Applicable
Cable OD
(mm)
Identifying
Mark
Part
Number
G11 G 1/2
8 to 10
10.1 to 12
16
16
8-10
10-12
G9601AM
• Mounting ameproof packing adapter body
to conduit connection (see Figure 4.5)