Troubleshooting / Service
Self Diagnostics
208 DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual Release L
February 2017
Error message prompts
The messages listed in Table 9-4 may appear during the power-up test or status test, or they may blink in
the lower display as the result of ongoing background tests that verify data and memory integrity.
In the case of more than one simultaneous malfunction in the background tests, the failure messages will be
displayed in rotation.
Table 9-4 lists the error message, the test group that prompted the message, the reason for the failure, and
how to correct the problem.
Table 9-4 Error message prompts
How to Correct the Problem
FAILSAFE
(Note 1)
(Note 2)
This error message shows whenever
the recorder goes into a failsafe
mode of operation. This will happen
if control is enabled and:
a power-up test fails,
a specific background test fails.
(Failsafe will be displayed in rotation
with other failure messages, except
BATTERY, only if control is
enabled.)
23. Run through the “Device Status”
check (page 207) to determine the
reason for the failsafe indication.
24. Identify the other failure message in
the display and correct the problem
according to the recommendations
given in this table for that particular
error message.
26. Check “Device Status” (page 207) to
see if error clears.
27. If error doesn’t clear, replace the
main printed circuit board.
Configuration data is in error.
28. Check all the configuration prompts
for accuracy.
See Section 3 - Configuration for
selections and limits.
29. Change any configuration item,
check “Device Status” to see if
CONFTEST = PASS, return
configuration item to original value.
See Section 3 - Configuration for
instructions to change a
configuration item.
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