Hach-Lange PHC101-03 Instruction Sheet - Manual (Page 2)

2
Assembly
1. Remove the electrode from the electrode storage cap ( Figure 1 , item 6 ).
2. Remove the film that covers the two reference junctions ( Figure 1 , item 2 ).
3. Rinse the electrode with deionized water and blot dry with a paper towel. Do not
scrub the bulb.
4. Attach a pair of color-code clips to the electrode and cable connector
( Figure 1 , item 3 ).
5. When ready to use, attach the electrode storage cap to the electrode storage cap lid
( Figure 1 , item 6 ) to prevent storage solution spillage and/or loss of the cap.
Calibration
For calibration steps, refer to the HQ Portable Meters User Manual. The IntelliCAL™
probes store the current calibration and calibration history in the probe memory. It is not
necessary to recalibrate when moving a calibrated electrode from one meter to another.
Maintenance
Important Note: Never use this electrode organic solvents; or if the pH to be measured is
lower than 2.
Important Note: Do not scrub the bulb. If the bulb becomes fouled, immerse and agitate
in a warm dilute mild detergent solution for a few minutes, rinse well with deionized water,
and gently blot or air dry prior to reuse.
General Maintenance
• Before measuring a new sample, rinse the electrode with deionized water and blot dry
with a paper towel.
• If calibration errors occur, recalibrate using fresh, high-quality buffers.
• If the pH glass membrane is not properly hydrated, soak the electrode in pH 4 buffer
for up to two-hours.
Storage
• Between uses, in intervals of up to two hours, store the electrode in the sample (if the
sample pH is not extreme), or in a neutral solution such as tap water.
For longer term storage, place the electrode in a 3M potassium chloride (KCl)
solution, either in the provided storage cap, or in a beaker.