Maintenance; Routine Maintenance; Sensor Window; Self Diagnostic Warnings - Process Sensors MCT Series Installation And Operation Manual

12.0 Maintenance

Tools required for maintenance on the MCT sensor and Operator Interface are:

12.1 Routine Maintenance

The MCT requires little or no routine maintenance.

12.1.1Sensor Window

The 'Clean Window Software' continuously monitors the cleanliness of the MCT window.
When the system detects a dirty window, a warning message will be displayed on the OI screen.
The window needs to be cleaned to remove the contamination from it.
Use a soft lint-free cloth or paper towel and glass cleaner fluid to remove dirt from the window.
DO NOT USE AN ABRASIVE CLEANER TO CLEAN THE WINDOW.
The window may be cleaned with the air purge shroud in place or the shroud may be removed to
fully expose the window. Remove the four Allen screws that hold the shroud to the sensor. Clean
the window and re-fit the shroud.

12.2 Self Diagnostic Warnings

The MCT has built-in self–diagnostic software that monitors key elements of the sensor's
operation. When this software detects a fault, it transmits a fault status bit out the serial port and
presents a warning message on the Operator Interface. If the optional maintenance alarm board is
fitted the alarm contact will also be triggered.
The screen warning messages are:
Flat blade screwdriver
7/64" Allen Key
3/32" Allen Key
5/64' Allen key
1/16" Allen Key
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