5
4
pH Measurement
4.1
Power on and remove the probe cap.
4.2
Rinse the probe with clean water and shake off excess water.
4.3
Fully submerge the probe into the solution at least 1 inch deep,
make a quick stir to remove potential air bubbles around the
probe.
4.4
Hold the pen and wait for the reading to stabilize (
stays on
screen), then record the reading.
4.5
Thoroughly rinse off the probe with clean water, then close the
probe cap.
5
Other Functions
5.1
If necessary, you can manually hold (lock) the reading by short pressing
. Press it
again to cancel the hold.
5.2
Long press
to switch temp. unit between °F and °C.
5.3
The tester will automatically power off if there is no operation
within 10 minutes. If you want to turn off/on the Auto. Power Off
function, power off the tester, and then hold
for 5 seconds
until you see Auto Off or Auto On. Then it will power on and go
to measurement mode automatically.
6
Probe Cleaning
6.1
The tester is only as accurate as the probe is clean. Always thoroughly rinse off the
probe before and after each measurement with clean water in a container or with a
wash bottle.
or
