Thoreson-McCosh Inc
EDITION 05/07/10
24
IB201001.doc
SECTION 10.5 DEWPOINT SENSOR REPLACEMENT
The dewpoint sensor should be replaced once a year or when contaminated.
Note: Never attempt to measure the resistance of the sensor. This will damage the sensor.
To replace the sensor:
1.
Remove power from the unit.
2.
Locate the sensor manifold assembly. This is a manifold (block) with wires coming
from the socket to the dewpoint board.
3.
Remove socket.
4.
Unscrew retaining nut.
5.
Remove sensor and insert from manifold.
6.
Remove the insert from the sensor. Place the insert onto the new sensor.
7.
Reverse steps 1-5.
SECTION 10.6 DISPOSAL OF MERCURY CONTACTORS
When a mercury contactor needs to be replaced, care must be taken to properly dispose of
the defective unit. Remove the contactor and place it in a plastic baggy and seal the bag.
Then place the unit or units in a sealable 5 gallon steel drum. If the unit is under Thoreson-
McCosh's factory warranty, ship to Thoreson-McCosh for warranty replacement credit. If
the unit is no longer under warranty, please contact:
Bethlehem Apparatus
P.O. Box 890
Front St.
Hellertown. PA 18055
Ph: (215) 838-7034
