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4. Keypad Functions
■
Short
press------
< 2 seconds ,
Long press-------
> 2 seconds
5. Preparation before Use
Pull out the battery insulation slip, and take off the probe cap.
Rinse off the probe in pure water (preferably distilled or deionized
water. RO water or tap water is the alternative), then shake off excess
water.
Perform at least a 2-point calibration. For pH calibration tutorial, refer
to Section 6.
When you are not using the tester, always store the spear probe in
the 3M KCL soaking solution. Never let it dry out. Replace the soaking
solution if it gets contaminated.
6. pH Calibration
Short press
to turn on the meter; rinse the probe in distilled water, Shake off excess water
Pour certain amount of pH 7.00 and pH 4.00 buffer solution into the corresponding calibration
bottles (to about half volume of the bottle);
Long press
to enter calibration mode (screen turns green);
Insert the probe into pH 7.00 buffer solution, make a quick stir, and hold still. When the reading
1. When turned off, short press to turn on the tester; long
press to enter parameter setting.
2. In calibration mode or parameter setting, short press to
return to measurement mode.
3. In measurement mode, long press to turn off the tester,
short press to turn on/off backlight.
1.In measurement mode, long press to turn on/off
Bluetooth
®
receiver. When turned on, will be flashing;
when connected to smartphone, will stay on.
2.In parameter setting, short press to change parameter
(Uni-directional).
1. Long press to enter calibration mode.
2. In calibration mode, short press to confirm calibration.
3. In measurement mode, when automatic lock is turned off,
short press to manually lock or unlock readings.
Probe cap
Swiss spear
pH probe
Probe ring
Battery cap
