PART THREE - OPERATION
SECTION 6 - TEST/MAINTENANCE
Rev. 6-501
Model P53 pH/ORP Analyzer (universal-mount 1/2 DIN)
71
S
ECTION
6
6.1 STATUS Checking
(analyzer, sensor, and
relays)
The analyzer has TEST/MAINT menu screens to:
•
Check operating status of the analyzer, sensor, and
relays, including TIMER relay countdown.
•
Hold analog outputs at their last measured values.
•
Manually reset all relay overfeed timers at once.
•
Provide analog output test signals to confirm operation
of connected devices.
•
Test relay operation (energize or de-energize).
•
Identify analyzer EPROM version.
•
Simulate a pH (or mV) or temperature signal to exercise
the measurement loop.
•
Reset configuration -- not calibration -- values to defaults.
•
Reset calibration -- not configuration -- values to defaults.
The system diagnostic capabilities of the analyzer enable
you to check the operating status of the analyzer, sensor
(measurement and temperature signals), and relays. The
MEASURE screen will flash the “WARNING CHECK
STATUS” message when a system diagnostic “fail” condi-
tion has been detected. To determine the condition causing
the warning, display the “STATUS” screens:
1.
Press
MENU key
to display
&21),*85(
7(670$,17
(;,7
, and use
Ø
Ø
key
to select the “TEST/MAINT” line.
2.
Press
ENTER key
to display
.
3.
With the “STATUS” line selected, press
ENTER key
to
display the “STATUS: ANALYZER OK” screen. This
screen confirms that the analyzer is operating properly.
If “FAIL” appears, it may mean:
TEST/MAINTENANCE
