NAVI D-25 Instruction Manual page 166

● Long-term storage
● Cleaning electrodes
D-52/53/54/55
1.
Remove the electrode from the pH meter.
2.
Wash the electrode well with pure (de-ionized)
water, and then remove the water drops using
cotton gauze.
3.
Remove the DO tip from the electrode body.
4.
Push the socket onto the DO tip, and then store
it by placing it in its original packaging and
sealing it air-tight.
DO tip
Be careful not to damage the DO tip membrane.
When using a neutral detergent for cleaning, be careful
not to allow the detergent to come in contact with the
membrane.
When conducting air calibration after the electrode has
been stored, first connect the electrode to the main unit
of the pH meter and allow it to stand in the open air for
two hours prior to conducting the calibration.
Each time a different solution is to be measured, rinse
the electrode with pure (de-ionized) water, and then wipe
off the water drops using clean filter paper or cotton
gauze.
6 Maintenance and Troubleshooting
6.4 Dissolved oxygen electrode maintenance
Short socket
O-ring
155