GE PM880 User Manual

August 2003
8-8 Servicing the PM880
Testing the Watchdog Timer Circuit
The PM880 includes a watchdog timer circuit. If a software error
causes the meter to stop responding, this circuit automatically
resets the meter. A properly functioning PM880 restarts if you
run the Watchdog Test.
To start the Watchdog Test, scroll to the Watchdog Test option in
the Test Menu and press
[ENTER]. The screen appears similar to
Figure 8-7 below.
Figure 8-7: The Watchdog Test Screen
Press
[F2] (No) to cancel the test and return to the Menu screen,
or press
[F3] (Yes) to start the test. The PM880 should go blank
for a few seconds, and then restart. If it does not follow this
sequence, consult GE Panametrics.
Dew Point, °C Signal, dB
-52.0
32
Pressure, PSIg
55.00
10.0
Run Time, Hours
Site Program Meter Logging Service
Units
Reports
Reference
MIS Probe
Factory Defaults
Flash Update
06
12
Factory Calibration
Test
X
No
Watchdog Test
Test Screen
Test Keys
Yes
** WARNING **
This test should automatically
restart your meter!
Press ‘Yes’ to start the test.
Press ‘No’ to cancel the test.
Watchdog Test

GE PM880 Specifications

General

Brand	GE
Model	PM880
Category	Measuring Instruments
Language	English