YSI IQ S ENSOR N ET TriOxmatic 702 IQ - Manual (Page 24)

Maintenance, cleaning, disposal, and replacement TriOxmatic
®
702 IQ
5 - 2 ba76048e01 01/2012
5.2 Cleaning the sensor shaft and membrane
For normal operation (e.g. boiler feed water), cleaning and calibration
are strongly recommended:
 if the measured values are suspected of being incorrect (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.
Caution
Clean the membrane very carefully!
Make sure that the membrane is not damaged, e.g. by sharp-
edged objects.
Contamination Cleaning agents
For loosely adhering dirt or
biological deposits Soft cloth or soft sponge, warm tap
water with detergent
Salt and / or lime deposits Acetic acid (volume percentage =
20 %),
soft cloth or soft sponge
1 Take the sensor out of the flow-thru vessel and put it into a
holding device.
2 Carefully clean the sensor shaft and the membrane as
specified in the C
LEANING AGENTS section.
3 Then, rinse it thoroughly with tap water.