Washing - Mitsubishi CA-200 Instruction Manual

Section 8: Maintenance and Inspection

8-2-2. Washing

When cell parts are contaminated, moisture attached to there and the baseline is unstable.
Wash it as follows and keep it in a desiccator with desiccant.
(1) Generator solution cell washing
1. Discharge all reagents.
2. Remove all parts of a generator solution cell and remove grease and attachments with
ethanol (acetone).
3. Wash them with a soft sponge and mild detergent.
4. Wash them with pure water, pour ethanol, and dry them in the air, dry them fully in a
desiccator (about 50 to 105 degrees Celsius).
* Wash equally parts remove at "2".
(2) Detection electrode washing
1. Remove attachment with ethanol (acetone).
When the removal at the glass border surface is insufficient, wipe it with soft paper.
Take care not to crack glass part contacting platinum.
2. Wash it with pure water, pour ethanol on it, wipe it with soft paper, and dry it fully with a
hair dryer.
(3) Cathode solution cell washing (Mainly platinum electrode and ceramic part washing)
1. Discharge cathode solution without contacting a lead.
2. Remove attachments with paper containing ethanol.
3. Pour ethanol into a cathode solution cell, set a rubber plug to a sealing plug setting port, and
shake the cell fully to wash it.
4. After ethanol discharge, repeat "3" operation until the cell is clean. When contamination is
not removed, pour acetone into a beaker and a cathode solution cell for a long time.
5. Wash them with pure water, pour ethanol, and dry them fully with a dryer.
CAUTION
At nonpyridine cathode solution use, by pouring acetone into a cathode solution
cell without good wash, white deposits are generated by reaction.
8-4
CA-200