PASCO PS-2108 Dissolved Oxygen Sensor - Manual (Page 13)

Model No. PS-2108 Dissolved Oxygen Sensor
9 ®
Storage
Short-Term Storage (two weeks or less)
Store the probe in the plastic storage bag with the tip inserted in the soaker bottle containing
about 10 ml of deionized water.
Long-Term Storage (more than two weeks)
1. Unscrew and remove the cartridge housing by turning it to the left.
Always hold the probe below the stainless steel band when unscrewing the cartridge housing
or otherwise applying torque to the end of the probe.
2. Dispose of the electrolyte and rinse the electrode with tap water (or deionized water in
areas with hard tap water) and dry it with a paper towel, removing loose silver oxide
(Ag
2
O) from the anode.
3. Rinse the cartridge housing with tap water and allow it to air dry.
4. Rinse the soaker bottle with tap or deionized water and shake dry.
5. Replace the cartridge housing onto the probe and place the dry probe in its storage bag
with the end of the probe in the soaker bottle to protect the membrane from damage.
Troubleshooting
If the Dissolved Oxygen Sensor does not give the expected output, do the following, and
check the function of the sensor after each step until the sensor works properly:
1. Replace the filling solution. See "Changing the Electrolyte Solution."
2. Replace the membrane. See "Replacing the Membrane."
3. Check the O-ring and replace if necessary (See "Replacing the O-ring."
If the Dissolved Oxygen Sensor still does not function properly, contact Technical Support
(See the Technical Support section in the back of this manual.)