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9.0 Troubleshooting & Maintenance
9.1 S200 TUr Fault Detection
The S200 TUr performs continuous diagnostic monitoring. In the S200 TUr there are three
levels of fault detection; warnings, errors and failures. Any faults are displayed in a queue
form in the bottom row of the LCD. How these faults are indicated depends on the settings
made in sections 7.3
Configuring the Error Level
and 7.5
Configuring the Alarms.
If
ERLV is set to OFF and Alarms are not set to Error, there will be no remote, indication of
a problem.
If the desiccant alarm is turned off and the desiccant becomes saturated only a screen
warning
of
DESC
will appear and no alarms are activated. Another
warning
of
ALM1
or
ALM2
is displayed if an alarm is set and the threshold is exceeded.
An
error
indicates a failure or a problem that usually can be corrected by the operator.
These errors consist of:
•
Lamp out
LAMP
.
•
4-20 mA loop open
MA
.
•
Bad calibration
CAL
.
•
If desiccant alarm activated and replacement required
DESC
.
•
If enabled and no flow
FLOW
(if equipped with the flow switch).
•
If the S200 TUr is equipped with ultrasonic cleaning, an additional message will
indicate that the ultrasonic transducer is not making contact or the flow through
has been removed
CLN
.
If any of these errors occur the instrument will still display readings, however the accuracy
is not known and the instruments readings may not be reliable.
A
failure
is a system fault. This is NOT a problem that the operator can correct, and the
unit must be returned to the factory for service. These failures consist of failures in the
CPU, A/D, EEPROM or other devices internal to the instrument (
FAIL
). If a failure
occurs, the instrument will not function properly and will display the word FAIL on the
lower row.
If any fault conditions occur, the message indicating the fault will be shown on the lower
row of the display.
9.2 System FAIL Message
Normally, this condition indicates that the instrument will require servicing. Contact either
the Supratec Technical Service Department or the Supratec Customer Service Department.
9.3 Diagnostic Chart
Symptom
Cause
Cure
Lower display shows
MA
4-20 mA loop open
Check wiring. See sections
3.3.4 and 7.2
Lower display shows
DESC
Desiccant pouch bad
Change desiccant pouch. See
section 10.2
