Battery Replacement; Ph Electrode Refilling (Ph110/115 Refillable Electrode Only); Filling The Electrode - Extech Instruments ExStik PH100 User Manual

Battery Replacement

1. Twist off the battery compartment cap
2. Replace the four (4) 2032 batteries observing polarity.
3. Replace the battery compartment cap

pH Electrode Refilling (pH110/115 refillable electrode only)

The refillable electrode does not need to be detached from the
TM
body of the ExStik
Refillable electrodes (PH115) have a removable reference junction
(slotted) and the word REFILLABLE on the side of the electrode
housing.
Removing the Reference Junction
The removal tool supplied with the
PH113 Refill Kit is used to remove
the reference junction from the
sensing surface of the electrode. If
the reference junction does not have
slots for the 'teeth' of the removal
tool to lock onto, the electrode is
NOT refillable.
Holding the electrode upside down, unscrew and remove the reference junction using the
removal tool.

Filling the Electrode

1. Once the reference junction
supplied in the Refill Kit.
2. Replace the reference junction using the removal/installation tool. (Spare junctions
are provided if needed).
Filling Solution
The supplied container includes 15ml of filling solution. There is enough solution for 4 to 5
refills. Use only the supplied solution for refilling the electrode.
in order to perform the refilling procedure.
Junction removal tool
is removed, fill the cavity with the refill solution
PH100-PH110 Version 5.0 06/05
6
Refillable
pH Module
Reference junction