7
GF 263X Series Chlorine Electrodes
Storage
Dry electrodes are shipped and need to be stored between –10 ºC to 60 ºC (14 ºF to 140 ºF) at a relative humidity that
does not exceed 95%.The primary concerns when storing the electrode is damage to the membrane.
DO NOT
FREEZE
If the sensor or panel assembly is to be removed from service for a period of time the sensor must be properly prepared for storage
and may need to be recommissioned.
Storage periods of 1 week or less:
•
Close the drain valve, then close the inlet valve of the
fl
ow cell, to maintain water inside the
fl
ow cell to keep the membrane wet.
•
If draining the
fl
ow cell is required, remove the sensor from the cell and the 2650 electronics and store in the shipping bottle with
tap water added.
Storage periods more than 1 week:
•
Remove the membrane cap and internal electrolyte solution.
•
Rinse the sensor internal chamber with DI water or cold tap water; drain and allow to dry.
•
Place the membrane cap back onto the sensor. INSTALL LOOSE, DO NOT COMPLETELY TIGHTEN THE CAP.
WHEN STORED DRY, THE MEMBRANE CAP MUST BE STORED RELAXED AND UNSTRESSED.
•
Store sensor DRY in the shipping bottle, DO NOT ADD WATER.
Recommissioning Procedure:
1. Fill the sensor with the electrolyte as outlined in Maintenance, see page 6, and install the membrane cap.
2. The sensor will have to be polarized in the
fl
ow cell with
fl
owing Chlorinated water before being used.
Note:
This may take 30 to 120 minutes before calibration can be performed.
3. If the sensor does not recover after recommission, follow steps 1-10 outlined in Reconditioning on page 8.
4. If the sensor still fails to work properly, continue with steps 11-17.
