17. Operation and Maintenance of Neon pR
Dr. A. Kuntze
I
Gutes Wasser mit System
Robert-Bosch-Str. 7a
40668 Meerbusch
+49 (0) 2150-7066-0 / Fax -60
www.kuntze.com
70
17.2.3.
Cleaning of assemblies, filters, etc.
An important part of maintenance is the cleaning of all parts that come in contact with
the water. Besides the sensors, this includes assemblies, pipes and tubes, filters,
flow meters, cocks, valves etc. Coatings, deposits, and biofilm can adulterate the
measurement, impede the water flow and at worst even damage the sensor.
Attention
We recommend to use only water and perhaps a soft brush for
cleaning. Many synthetic materials are affected by acids or organic
solvents!
17.2.4.
Calibration of the pH measurement
The response characteristics of pH sensors change over time, even without use, so
the measurement has to be recalibrated at regular intervals.
The instrument checks the calibration results after calibration and displays an event
message if the sensor has to be cleaned, regenerated, or replaced. Refer to Trouble-
shooting for more information.
17.2.5.
Checking the gaskets
Especially in pressurized applications all gaskets and sealing rings must be checked
regularly and replaced at needs. Make sure to use only spare parts consistent with
your application and your equipment. Check the proper placement before reapplying
pressure!
17.2.6.
Testing the safety features
Regularly test all safety features, especially when using control functions. Check the
function of water level or flow sensors and verify that the controller is automatically
shut down in a low-water situation.
Simulate such an event by impeding the water flow temporarily or by lifting the level
sensor out of the water. Switching of the level sensor or loss of the flow signal has to
Summary of Contents for Neon pR
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