Xylem WTW TriOxmatic 690, Руководство по эксплуатации, Страница: 13 / 40

TriOxmatic
®
690 Maintenance, cleaning, disposal, and replacement
13 ba25314e05 09/2020
5 Maintenance, cleaning, disposal, and
replacement
5.1 General maintenance instructions
WARNING
Contact with the sample can lead to danger to the user!
Depending on the type of sample, suitable protective measures
must be taken (protective clothing, protective goggles, etc.).
5.2 Cleaning the sensor shaft and membrane
For normal operation (e.g. municipal wastewater), cleaning and
calibration are strongly recommended:

in the case of pollution (according to visual check)

in the case of suspected incorrect measured values (usually too low)

if the measured value lies outside the range of precision required by
the user during the function check.
Cleaning agents
Cleaning
Contamination Cleaning agents
Sludge and loosely adhering
dirt, biological deposits Soft cloth or soft sponge, warm
tapwater with detergent
Salt and / or lime deposits Acetic acid (volume percentage =
20 %), soft cloth or soft sponge
1 Pull the sensor out of the sample.
2 Get rid of any coarse contamination on the sensor (e.g. brush
it off in a bucket of tapwater, wash it down with a hose or wash
it off with a cloth).
3 Unscrew the protective hood from the sensor.