9
W
Ar
NiNG
& Err
Or
mESSAGES
Refilling the Electrode
• To remove the electrode sleeve, carefully rotate and slide it off (A). Set it to one side.
Note:
Handle the probe with care, the pH electrode stem is made of glass.
• Rinse off any traces of electrolyte gel from sleeve. Soak the electrode tip in
HI70061
General purpose cleaning solution (or
HI700661
,
HI700663
,
HI700664
) for
20 minutes. Rinse with distilled or deionized water.
• Refill the reference well with
HI9071
Gelled bridge electrolyte (B).
• Replace the sleeve. Ensure the o-ring is fixed inside the electrode. Rinse off excess
gel with distilled or deionized water.
• Shake the probe down gently to eliminate any trapped air bubbles.
• Soak the probe in
HI70300
Electrode storage solution for a minimum of 30 minutes before calibrating.
Storage
• To ensure a quick response, the glass tip and junction should be kept moist.
• When not in use, add a few drops of storage solution to the protective cap to keep the glass tip and the junction
hydrated. If storage solution is not available, pH 4.01 or pH 7.01 buffer can be used.
• Do not store the electrode in distilled or deionized water.
12. WARNING & ERROR MESSAGES
----
WRNG
“---- WRNG” displayed during calibration.
Invalid buffer.
Check the buffer value and use fresh buffer.
12.02
23.7
Measured value displayed blinking.
Measured value is out of electrode range.
Clean the electrode to improve condition.
!
8.02
23.7
Battery icon (
!
) displayed blinking.
Battery is below 10 %, replace the battery.
BAtt
DEAD
“BAtt DEAD” and tester turns off.
Depleted battery, replace the battery.
13. ACCESSORIES
Ordering Information Product Description
pH Buffer Solution
HI50016-02
pH 1.68 buffer solution, 20 mL sachet (25 pcs.)
HI70004G
GroLine pH 4.01 buffer solution, 20 mL sachet (25 pcs.)
HI70006P
pH 6.86 buffer solution, 20 mL sachet (25 pcs.)
HI70007G
GroLine pH 7.01 buffer solution, 20 mL sachet (25 pcs.)
HI70009P
pH 9.18 buffer solution, 20 mL sachet (25 pcs.)
HI70010P
pH 10.01 buffer solution, 20 mL sachet (25 pcs.)
HI77400P
pH 4.01 & 7.01 buffer solution, 20 mL sachet (10 pcs., 5 each)
HI770710P
pH 10.01 & 7.01 buffer solution, 20 mL sachet (10 pcs., 5 each)
A
B
