Aquametrix AM-TBR Turbidimeter User Manual - Manual (Page 35)

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9. Troubleshooting & Maintenance
9.1. AM-TBR Fault Detection
The AM-TBR performs continuous diagnostic monitoring. In the AM-TBR 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
7.3and 7.5. 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:
1. Lamp out LAMP.
2. 4-20 mA loop open MA.
3. Bad calibration CAL.
4. If desiccant alarm activated and replacement required DESC.
5. If enabled and no flow FLOW (if equipped with the flow switch).
6. If the AM-TBR 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 Water Analytics Technical Service Department or the Water Analytics Customer
Service Department
.
Water Analytics, Inc.
100 School St. Andover, MA 01810
Phone: 978-749-9949 or Toll Free 855-pH-Probe
Fax: 978-749-9961
Email: [email protected]
www.aquametrix.com