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18 Maintenance work
18.1 Cleaning the pressure probe
Recommended interval: Every 12 months
In case of difficult local measuring conditions (heavy
deposits): as required every 4 to 6 months.
(Measurements that are inaccurate or not plausible
indicate a contaminated pressure sensor.)
How to clean the pressure probe
Open the top cap/observation well cover.
Completely remove the OTT ecoLog 800 (3G) from the observation well.
Remove the black protective cap.
Clean the pressure sensor carefully using a brush and water. Clean graphite
electrodes and temperature sensors for the conductivity sensor with soapy
water and cotton buds. Lime scale deposits can be removed using a common
household scale remover. Make sure to follow the use and safety instructions
for the scale remover!
Rinse the pressure probe
thoroughly
with clear water!
Reattach the black protective cap.
Recommendation: Calibrate the conductivity sensor (see Chapter 18.4).
Reinstall the OTT ecoLog 800 (3G), refer to Chapter 8.
Determine current reference value by means of a contact gauge and enter it,
refer to Chapters 9.4 or 10.
Close the top cap/observation well cover.
Black
protective cap
Pressure Sensor
Pressure probe with
conductivity sensor
and datalogger
Conductivity
sensor
Graphite
electrodes
Temperature sensor
Fig. 27: Cleaning the pressure probe.
Summary of Contents for ecoLog 800
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