
Operation
-
Start-up
Release M
DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
119
April 2017
Test failures
If control is enabled and one or more of these tests fail, the recorder will go to the Failsafe Manual Mode,
and “FAILSAFE” will flash in the lower display.
If control is
not
configured, the self-test failures will be displayed periodically as other error messages are
presently displayed (CNFG ERR, CAL1 ERR, CAL2 ERR, or BATT LOW).
Troubleshooting
Refer to “STATUS TESTS” in
Section 9 Troubleshooting/Service
to identify and correct the problem.
Check the displays and keys
Table 5-4 to run the display and key test.
Table 5-4 Procedure for testing the displays and keys
Press
Result
SET
UP
and hold in, then press
FUNC
at the same time
Release the keys. The recorder runs a display test. All the displays will
light for 8 seconds, then you will see:
Upper Display:
KEYS
Lower Display:
TRY ALL
Press each key to see if it
works
When the key is pressed, the lower display indicates the name of the
key pressed.
Key Pressed
Lower Display
SET UP
SET UP
FUNC
FUNCTION
LOWR DISP
LWR DISP
MAN/AUTO
AUTO MAN
CHART
CHART
▲
INCRMENT
▼
DECRMENT
RUN/HOLD
RUN HOLD
Note: MAN/AUTO or RESET is shown but not both
If no key is pressed for 25 seconds, the test times out and the recorder exits the key test.
If any test fails, go to
subsection 9.3
Self Diagnostics
for more information.