Measuring range: 0.00~14.00pH

Resolution: 0.1pH

Accuracy: ±0.1pH or 0.05pH

Calibration: manual, 2 points

ATC:   5-60 

Power: 4×1.5v alkaline (AG13)

Auto shut-off: Approx. 4minutes

Dimension: 175×41×23mm

Weight: 90g

OPERATION

• Remove the protective cap. Don't be worry if white crystals appear around the probe head. This is normal with pH electrodes and they dissolve when rinsed with water.

• Turn the meter on by sliding switch on the top.

• Immerse into solution up to the max immersion level.

• Stir gently and wait until the display stabilizes.

• After use, switch off pH meter, use the water clean the electrode and replace the protective cap.

• Large fluctuations in readings could be due to lack of calibration, dry electrode or rundown batteries.

CALIBRATION

• Immerse the tester up to the maximum immersion level in pH 6.86 buffer solution

• Allow the reading to stabilize and using a small screwdriver adjust the calibration trimmer to read 6.86

Calibration is now complete.

ALWAYS USE FRESH BUFFERS FOR CALIBRATION.

BATTERY REPLACEMENT

When the meter cannot be switched on or the display fades, pull out the battery compartment and replace all three 1.5V batteries, while paying attention to their polarity. Batteries should only be replaced in a safe area using the battery type specified in  instruction manual.(1.5 Alklaine or AG13)

HANNA HI98108 pHep PEN PH meter PH tester