<5. Wiring>
5-3
IM 01C25W05-01EN
(2) Flameproof Type
Wire cables through a cable gland or using a
flameproof metal conduit.
F0507.ai
Wiring metal
conduit
Flexible metal conduit
Tee
Drain plug
To low pressure side trasmitter
(slave)
High pressure side
transmitter
(master)
DRS cable
Cable gland
Figure 5.7
Typical Cable Wiring Using Flameproof
Packing Adapter
Flameproof metal conduit wiring
• A seal fitting must be installed near the terminal
box connection port for a sealed construction.
F0508.ai
Flameproof
heavy-gauge
steel conduit
Flameproof flexible
metal conduit
After wiring, impregnate the fitting
with a compound to seal tubing.
To low pressure side trasmitter
(slave)
High pressure side
transmitter
(master)
DRS cable
Non-hazardous
area
Hazardous area
Tee
Drain plug
Seal fitting
Gas sealing device
Figure 5.8
Typical Wiring Using Flameproof Metal
Conduit
5.5 DRS Cable Connection
Connect the DRS cable between the high pressure
side transmitter (master) and low pressure side
transmitter (slave). Wires can be run through a
cable gland or a wiring metal conduit. In either
method, follow the procedure below to connect and
disconnect wiring.
CAUTION
• In the case of the flameproof type, running
the wires through a cable gland is the
only method allowed for the DRS cable
connection. As such, refer to subsection
5.5.1, and connect the wiring.
• Because the high pressure side transmitter
(master) and low pressure side transmitter
(slave) are not insulated, do not turn on the
power until all wiring is complete.
• When the option code: FF1, FU14, PF22,
PF23, NF2, NF21, UF1, GF12 and GU14 is
selected, cable glands for DRS cable are not
attached.
• For these options, prepare the cable gland
conform to the cable of ø8.5 mm diameter.
In the case to insert the DRS cable into
cable gland from the side of DRS connector,
inner diameter of the cable gland must be
larger than ø13 mm. If the inner diameter of
selected cable gland is smaller than
ø13 mm, insert the DRS cable from the
oposit side of the DRS connector before
laying DRS cable.
5.5.1 Wiring through a Cable Gland
Cable gland
Wiring port
Enlarged view of
connector
F0509.ai
High pressure side
transmitter
(master)
DRS Cable
Figure 5.9 Mounting the Cable Gland for the DRS
Cable
