YSI IQ S ENSOR N ET TriOxmatic 700 IQ (SW) - Manual (Page 27)

TriOxmatic
®
700 IQ (SW) Maintenance, cleaning, disposal, and replacement
5 - 5 ba76013e01 01/2012
5.3 Changing the electrolyte and membrane cap
YSI delivers the sensor ready for operation. The electrolyte solution
and membrane cap must only be replaced if:
 the membrane is heavily contaminated and a calibration error
occurs
(log book message)
 the membrane is damaged
(log book message)
 the electrolyte solution is depleted or the counter electrode is
poisoned
(log book message)
 after the gold working electrode and silver counter electrode have
been cleaned
Note
Information on the contents and structure of the log book and how you
can call it up is given in the L
OG BOOK chapter of the IQ S ENSOR N ET
system operating manual.
Note
Unscrew the membrane cap for maintenance purposes only. After
doing so, always use a new membrane cap!
Changing the electrolyte
and membrane cap
Caution
The ELY/A electrolyte solution irritates eyes, skin and mucus
membranes. If it comes into contact with the eyes, rinse
thoroughly with water and consult a doctor! During working
activities, always wear suitable protective gloves and protective
goggles/face shield! Follow the safety datasheet.
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.