GE PT878GC Manual De Usuario
April 2004
9-38
Servicing the PT878GC
Testing the Watchdog Timer Circuit
The PT878GC includes a watchdog timer circuit. If a software
error causes the meter to stop responding, this circuit
automatically resets the meter. A properly functioning PT878GC
restarts if you run the Watchdog Test.
error causes the meter to stop responding, this circuit
automatically resets the meter. A properly functioning PT878GC
restarts if you run the Watchdog Test.
To start the Watchdog Test, scroll to the Watchdog Test option in
the Test Menu and press
the Test Menu and press
[ENTER]
. The screen appears similar to
Figure 9-23 below.
Figure 9-23: 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 PT878GC should go
blank for a few seconds, and then restart. If it does not follow this
sequence, consult GE Panametrics.
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
Factory Defaults
Flash Update
0
6
12
Factory Calibration
Test
X
No
Watchdog Test
Test Screen
Test Keys
Yes
** WARNING **
This test should automatically
restart your meter!
restart your meter!
Press ‘Yes’ to start the test.
Press ‘No’ to cancel the test.
Press ‘No’ to cancel the test.
Watchdog Test