Hanna Instruments PHEP User Manual

®

pHep

Pocket-sized
pH Meter

OPERATION:

• Do not be alarmed if
white crystals appear
around the cap. This is
normal with pH elec­trodes and they dissolve
if rinsed with water.

• Remove the protective
cap and turn the pHep

pH

®

on.

• Immerse it in the sample
up to the maximum im­mersion level.

pH

• Stir gently and wait until
the display stabilizes.

• After use, rinse the elec­trode with water to mini­mize contamination.

• Store the electrode with
a few drops of storage
(HI 70300) or pH7 (HI

7007) solution in the pro­tective cap.

• Always replace the pro­tective cap after use.

DO NOT USE DISTILLED OR DEIONIZED
WATER FOR STORAGE PURPOSES.

• Large differences in pH readings
(±0.5 pH) could be due to lack of
calibration, dry electrode or run­down batteries.

CALIBRATION:

The calibration procedure is

pH

simple.

• Immerse the tester up to
the maximum level in pH 7
buffer (HI 7007).

HI 7007

HI 70300