YSI IQ S ENSOR N ET TriOxmatic 700 IQ (SW) - Manual (Page 24)

Maintenance, cleaning, disposal, and replacement TriOxmatic
®
700 IQ (SW)
5 - 2 ba76013e01 01/2012
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
Caution
Acetic acid irritates the eyes and the skin. When handling acetic
acid, always wear protective gloves and protective goggles.
Contamination Cleaning agents
For sludge and loosely
adhering dirt, or 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.