Ametek WDG-V, Руководство пользователя

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PN 9000-133-VE, Rev U
Replacing the Combustibles / Methane Detectors
The Combustibles Detector will always face outward, and the Meth-
ane detector will always face inward from the factory.
Combustibles Detector
To replace the Combustibles Detector (Figure 3-5):
1. On the
Sensor
board, disconnect the Combustibles Detector wires from
the terminal block labeled
Cact
and
Cref
.
For RTD Combustibles Detectors, the White with Red stripe wire goes to
Cact
and the plain White wire goes to
Cref
.
For Hotwire Combustibles Detectors, the Black wires go to
Cact
and the
Brown wires go to
Cref
.
2. Loosen the two (2) 4.0 mm hex screws that hold the Combustibles Detector
in place and remove the detector from its housing. Save the screws from the
detector to use when installing the new Combustibles Detector.
3. Always use a new o-ring when the Combustibles Detector has been re-
moved.
4. Install the new Combustibles Detector in place, aligning the two s (2) crews
on the Heater Block. Be careful not to damage the detector element ends
while inserting the assembly. Tighten screws until face is flush with the
block and gasket is fully compressed.
5. Reconnect the detector leads to the
Sensor
board.
Methane Detector
To replace the Methane Detector (Figure 3-5):
1. You must remove the Heater Block in order to access and replace the
Methane Detector.
2. Disconnect the Methane Detector (Blue and White) wires on the
Sensor
board.
3. Loosen the two (2) 4.0 mm hex screws that holds the Methane Detector in
place and remove the detector from its housing. Save the screws from the
detector to use when installing the new combustibles detector.
4. Always use a new o-ring when the Methane Detector has been removed.
3-20 | Thermox
®
WDG-V / VC / VCM / VM