B-3
“Oil-Less” Scroll Laboratory Air
4107 9006 25.11
Appendix B: Dew Point Transmitter
B.7 Troubleshooting
WARNING:
Before removing the dew point
transmitter, verify that line pressure has
been valved off or reduced to atmospheric
pressure.
Before servicing the dew point transmitter, do the
following:
1. Close dew point transmitter isolation valve
2. Allow transmitter piping to depressurize
through the fl owmeter until it reduces to
atmospheric pressure.
3.
Disconnect sensor cable and remove
transmitter from piping.
NOTE:
Remote alarms will be activated
Problem
Possible Cause
Solution
Slow system response
Insuffi
cient fl ow through dew
point sensor
Check fl ow
No power
No incoming power
Verify line power is being supplied
Erratic display
Unit defect
Contact
BeaconMedæs
High dew point
Air is not being dried
Verify that the online dryer (valve
open) is in the “Automatic” position
on the control panel and that the
off -line dryer (valve closed) is in the
“Off ” position on the control panel.
Check fl ow
Faulty sensor
Replace sensor
