Hanna Instruments HI 84529-01 - Manual (Page 24)

www. hannainst .com 24 Setup/Installation
Remove the electrode protective cap.
If the bulb is dry, soak the electrode in HI 70300 Storage Solution for at least
one hour.
Preparation of reference electrode:
1.
Unwrap Parafi lm™ seal found
over ceramic junction on inner
stern of the reference electrode
and discard. This is only used for
shipping.
2. Rinse inner stern with deionized
water, making certain to wet o-ring
found on the inner stern.
3. Reassemble reference electrode
by gently pushing the inner
assembly into the outer body (from
the bottom), slide spring and cap
down the cable and over the top of
the inner stern. Screw the cap into
place.
4. Unscrew and remove the fi ll hole
plug and o-ring on fi ll hole spout.
5. Using the dropper pipette provided,
add a few drops of HI 7072 fi ll
solution to the electrode. Invert
electrode to wet the o-ring and rinse the electrolyte chamber.
6. Holding the body of the electrode gently press the cap with your thumb.
This permits the fi ll solution to drain out of the body. Release your thumb
and verify electrode returns to its original position (you may need to
gently assist for this to occur).
7. Fill electrode body with HI 7072 fi ll solution until solution volume is just
below fi ll hole.
Note: During measurement always operate reference electrode with the fi ll
hole open.
Measurement
Place pH electrode and reference electrode into electrode holder and connect
the electrodes to the instrument.
Rinse the pH and reference electrodes with distilled or deionized water.
Electrode
Preparation
Procedure