YOKOGAWA DPharp EJXC40A, Руководство пользователя

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<4. Installation>
4-4
IM 01C25W05-01EN
4.3 Connecting the DRS Cable
Connect the DRS cable to the high pressure
side transmitter (master) and low pressure side
transmitter (slave). Be careful of the termination
when connecting.
Low pressure side
transmitter
(slave)
High pressure side
transmitter
(master)
Shield
(Poly tube)
P+: red
B: blue
P−: white
A: black
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Figure 4.10 DRS Cable Connection
P+: red
P−: white
A: black
B: blue
Shielded wire
(Poly tube)
DRS cable
Connector
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Figure 4.11 DRS Cable Specifications
CAUTION
To shorten the cable, cut the side opposite to the
connector end.
When terminating the DRS cable, be sure to
completely insulate each wire to keep them from
making contact as each wire has independent
electric potential.
To prevent the shielded wire from making contact
with each terminal, cover each shielded wire with
a vinyl tube or wrap vinyl tape around it.
Do not connect the power directly to the low
pressure side transmitter (slave). If you connect
the power supply directly, it may damage the
equipment.
4.4 Mounting the C10FR
Flushing Connection Ring
4.4.1 Mounting to Pressure Detector
Section
The C10FR flushing connection ring is mounted
to the pressure detector section as shown in
Figure 4.12. At the factory shipment, the flushing
connection ring is enclosed with the diaphragm
seal section without being tightly attached to the
pressure detector section with screw, bolt/nut or
welding. Therefore, when taking it out, please
handle it with care not to damage the diaphragm
with ring holder or vent/drain plugs of the flushing
connection ring.
Vent/Drain plug
Ring
Ring holder
Spiral gasket
Pressure-detector section
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View from pressure detector section
Groove for installing
spiral gasket
Figure 4.12 Mounting to Pressure Detector Section
1. Mount the ring holder on the ring and loosely
tighten the mounting screws.
2. Place the spiral gasket in the ring groove. With
the ring correctly aligned and flush with the face
of the pressure detector, securely tighten each
ring holder’s mounting screws.
3. Position the ring so that the vent/drain plugs are
aligned straight up and down.