165910 Dew Point Meter 8072A Manual
8
June 2014
from the monitor’s tubing and internal fittings. After a few
minutes, the reading should start to drop until a stable reading
is obtained. It can take 30 minutes or more for the unit to
stabilize when first turned on.
NOTE: Not all dryers produce a -40
dew point. Check with
your dryer manufacturer for expected dew point levels.
Leave the 8072A connected and turned on during material
drying and processing. The built in red light and audible beeper
will indicate dryer trouble within moments of a dew point rise.
A constantly high reading on the 8072A may indicate a
malfunctioning dryer or one that is overloaded by damp
material in the hopper. If you suspect that the 8072A is giving
an incorrect high reading, perform the Dry-Down Test described
in the Troubleshooting section of this manual.
Remote Monitoring/Data logging
The 8072A analog output jack can be used to monitor or log
dew point over a period of time.
The output jack is a 3 pin male M8 type connector. This
connector accepts standard threaded or snap fit female M8
cables.
PIN 1
0-5V signal
PIN 3
Ground
PIN 4
4-20mA self-powered signal (current sourcing)
Note that the output scaling is -40
q
F to +70
q
F.
Summary of Contents for 8072A
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