178 of 220 Troubleshooting - Anatel A643a
RPS - June 2007 - Edition 12
Operator Manual Anatel
14.3 Troubleshooting
With the exception of Codes 4, 10, 11 and 18, the Electromechanical Alarms are not
userserviceable. A Code 4 alarm, if caused by changing the lithium battery, will result in lost
data that cannot be recovered. A Code 10 alarm can be corrected by restoring the factory
default parameters (see “Factory Defaults” on page 51), then modifying them as necessary.
A Code 11: Check Battery can be corrected by replacing the battery (see “Lithium Battery
Replacement” on page 166). A Code 18 or Code 137 alarm indicates faulty communications;
check A-Net wiring and contact Anatel if the problem persists.
The following alarms warrant a general check to verify that the isolation valve is open and the
instrument’s sample valve is functional. This is done by watching the output of the drain line
through an entire analysis. Flow should be unrestricted during the Sample Time, there should
be absolutely no flow (watch for dripping from the drain tubing) during oxidation, and there
should be no bubbles evident in the drain line at the start of a new analysis. In the case of
alarms 34–36, an hour or more of self-cleaning is recommended (see “Self-Cleaning Mode” on
page 155).
44 Sys Suitability The system suitability test should be repeated.
45 See Guide
Possible hardware performance issue. Call the
Anatel Service Department.
46 See Guide
Possible hardware performance issue. Call the
Anatel Service Department.
47 See Guide
Possible hardware performance issue. Call the
Anatel Service Department.
48 See Guide
Possible hardware performance issue. Call the
Anatel Service Department.
49 See Guide
Possible hardware performance issue. Call the
Anatel Service Department.
50 Test Interrupt A calibration or “grab sample” test was interrupted by a power loss. Check the vial or
sample vessel and ensure proper operation.
51 Change Password The 90-day limit has expired and the Password(s) must be changed (see “Password
Security” on page 54).
52 UV Lamp Failing UV Detect indicates that the UV lamp is degrading and the life of the lamp is extremely
limited. Replace UV lamp as soon as possible.
53 UV Lamp Bad UV Detect indicates that the UV lamp has failed and must be replaced immediately.
Table 14-1 :
Anatel A643a Alarm Codes (Continued)
Code Corrective Action
27/29 Check the water supply to the instrument for unobstructed, bubble-free flow or sample vial
empty.
32/33 Check UV lamp connections; replace the UV lamp assembly if necessary.
34 If TOC is greater than 1000 ppb or the Analyzer has been idle for a long period prior to
analysis, place the instrument in the Self-Clean Mode for at least one hour before attempting
another analysis. If the problem persists, it is either a hardware problem or an unsuitable
application; contact
Anatel.
35 The sample valve is plugged or the UV lamp is going bad. Replace the UV lamp if
necessary.
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