Maintenance Of The Sensor - ProMinent DULCOTEST PER Serie Instrucciones De Servicio

Maintenance of the sensor

Maintenance frequency
Maintenance operation
Cleaning the diaphragm Do not unscrew the diaphragm cap!
38
9 Maintenance of the sensor
IMPORTANT
• Maintain the sensor regularly in order to avoid over metering
in a control system resulting from an incorrect measured
value!
• Observe the relevant national regulations in force for fre-
quency of maintenance!
• Do not touch the electrodes or bring them into contact
with greasy substances!
• Do not unscrew the diaphragm cap when cleaning the dia-
phragm!
Figures based on
experience for:
Other applications: depending on operating conditions
Check the sensor regularly for dirt, deposits and air bubbles!
Avoid, as far as is possible, contamination of the diaphragm with
particles, deposits/sediments, etc. Eliminate air bubbles by in-
creasing the flow.
Check the sensor display value at the control equipment
regularly using suitable reference methods (Photometry,
Chap. 8.2).
If necessary, re-calibrate the sensor (see section 8.2 Calibration).
If calibration is no longer possible, clean or replace the dia-
phragm cap and then repeat calibration (see sections 6,
Assembly, 8.1 Running-in time and 8.2 Calibration).
Wipe the diaphragm with a damp cloth.
media with minor dirt contamination: 1 month
ProMinent ®