WT.050.560.001.UA.IM.0714
71
Depolox
®
3 plus ReSIDUAl ANAlYZeR
eVoQUA
W3T140188
CAUTION: The membrane may not touch the gold working electrode.
Restarting: Refer to “Commissioning the membranesensor for chlorine
dioxide CD7”.
Error in Membrane Sensor for Chlorine Dioxide CD7
Trouble-shoot and debug if the measuring signal is too low or irregular:
1. Remove air bubbles on the membrane (e.g. tap the inflow mating
connector); air bubbles prevent the chlorine dioxide from diffusing
through the membrane and distort the measurement.
NOTE: Air bubbles on the remaining parts of the sensor are normal after
initial commissioning or restarting; they disapate after one or two days.
2. Replenish electrolyte.
3. Open membrane sensor. To do this, push the elastomer seal to one side
to permit the inflow of air and unscrew the membrane cap.
4. Pour out the electrolyte.
5. Wash the electrode finger and the membrane cap with clean (distilled)
water and allow it to air dry.
For further procedure, see “Commissioning the membranesensor for
chlorine dioxide CD7”.
If the sensor’s measuring signal is still too low or irregular, a new membrane
cap must be used. The measuring cell requires one to two hours before it
can be calibrated.
3.4.6.3
Membrane Sensor for Ozone Oz7
The OZ7 membrane sensor enables the ozone content in all types of water to
be determined selectively, without cross-sensitivity to chlorine, bromine and
hydrogen peroxide, however, with cross-sensitivity to chlorine dioxide and
peracetic acid. The sensor does not demonstrate a pH value dependency and
is therefore very suitable for water with various pH values.
CAUTION: The electrode fingers (reference electrodes) and membrane are
extremely sensitive! Do not touch, soil or damage! Before unscrewing the
filled membrane cap, push the elastomer seal to one side to permit the inflow
of air through the vent underneath it! Otherwise, the membrane may be
damaged due to developing negative pressure. Do not sand down the light
yellowish-gray deposit of the electrode finger or wipe it in the direction of
the gold working electrode!
!
!
Summary of Contents for Wallace & Tiernan Depolox 3 plus
Page 11: ...WT 050 560 001 UA IM 0714 Depolox 3 plus RESIDUAL ANALYZER EVOQUA W3T140188 ...
Page 12: ......
Page 19: ......
Page 39: ...WT 050 560 001 UA IM 0714 26 Depolox 3 plus RESIDUAL ANALYZER EVOQUA W3T140188 ...
Page 40: ......
Page 109: ......
Page 127: ...WT 050 560 001 UA IM 0714 112 Depolox 3 plus RESIDUAL ANALYZER EVOQUA W3T140188 ...
Page 128: ......
Page 146: ...WT 050 560 001 UA IM 0714 130 Depolox 3 plus RESIDUAL ANALYZER EVOQUA W3T140188 ...
Page 147: ......
Page 157: ......