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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
Lower
Display
Indication
Test Group
Reason for Failure
How to Correct the Problem
FAILSAFE
(Note 1)
(Note 2)
Status or
Background
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.
RAM TEST
(Note 1)
Power-up
RAM failure
25.
Cycle power.
26.
Check “Device Status” (page 207) to
see if error clears.
27.
If error doesn’t clear, replace the
main printed circuit board.
CONFTEST
(Note 1)
Power-up
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.