Hanna Instruments HI 4115 - Manual (Page 5)

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6. Holding the body of the electrode gently press upper
cap with your thumb. This permits the fill solution to
drain out of the body. Release cap and verify elec-
trode returns to its original position. (You may need to
gently assist for this to occur).
7. Tighten the electrode cap onto the body and fill elec-
trode body until fill solution volume is just below fill
hole.
8. Position electrode in a Hanna HI 76404 electrode
holder (or equivalent) and connect plug to meter.
H I4
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5
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/S
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3. Reassemble electrode by gently pushing the inner
assembly into the outer body, sliding spring down
cable, and screwing cap into place.
4. Remove fill hole cover and o-ring on fill hole spout.
5. Using the dropper pipette provided, add a few drops
HI 7072 fill solution to the electrode, wetting the o-
ring and rinsing out the fill solution chamber.
Deionized
Water
Remove
Parafilm
VIII. VIII. VIII. VIII. VIII. Electrode Preparation Electrode Preparation Electrode Preparation Electrode Preparation Electrode Preparation
HI 4015
1. Remove protective cover from sensor tip.
2. Prepare reference electrode by filling outer electrolyte
reservoir with HI 7072.
3. Place sensor and reference electrodes into electrode
holder and connect cable connectors to meter.
HI 4115
1. Unwrap plastic film seal found over ceramic junction
on inner stem and discard. This is only used for ship-
ping and long term storage.
2. Rinse inner stem with deionized water making certain
to wet the o-ring found on the inner stem.
•
Avoid large changes in temperature (thermal shock)
as it may damage the sensor.
•
Avoid leaving electrode in SAOB containing solutions
for long periods of time as it will damage the elec-
trode.