OTT Hydrolab DS5X - Standard Reference Electrode

45
Maintenance
6.8.1 Standard Reference Electrode
1. Gently pull the entire
reference sleeve away
from the Transmitter.
2. Discard the old
electrolyte from the
reference sleeve.
3. Drop two KCl salt pellets
(Cat. No. 005376HY) into
the reference sleeve.
4. Refill the sleeve to the
top with reference
electrolyte.
Note: The porous Teflon
®
Reference Junction is the most
important part of the pH and ORP performance. Make sure it is
clean and passes electrolyte readily. If not, replace it with the
spare provided in the maintenance kit. Replacement Reference
Junctions are Cat. No. 000548HY.
Note: When seating the reference sleeve, trapped air and
excess electrolyte are purged. This purging flushes and cleans
the porous Teflon
®
Reference Junction.
5. With the Transmitter
sensors pointed down,
push the full reference
sleeve back onto its
mount until the sleeve
has just covered the
O-ring located on the
mount (just behind the
silver electrode).
6. Turn the Transmitter so
that the sensors point up
and push the sleeve the
rest of the way onto its
mount. Rinse with tap
water.