5-4 l Maintenance
Checking the Dewpoint
It is a good idea to monitor the dewpoint performance of your dryer periodically with a cali-
brated portable dewpoint monitor, to ensure it is performing at maximum capacity. Even if
your dryer has a dewpoint readout, comparing it to a portable instrument periodically will
confirm that the dewpoint sensor and readout is performing properly.
To check dewpoint:
1 Connect your portable dewpoint meter to the
dewpoint check port on the rear panel of the
dryer.
2 Turn on the portable instrument, and ensure
there is positive airflow through the sensor.
3 Monitor the readout and allow ample time for it to stabilize before disconnecting the
portable dewpoint monitor. Some dewpoint monitors require a substantial amount of
time for residual moisture to be purged from the sensor.
4 In the event the dewpoint is not satisfactory, refer to the Troubleshooting section of this
manual, under Delivery Air Dewpoint alarm.
NOTE: The DC-C control is av-
eraging the dewpoint over time.
Allow the system to stabilize to
ensure an accurate reading.
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