3
3. When
Meter shows erratic readings, it must be sensor failed or power is weak.
4. Only select one of the two electrodes while measuring the same water zone, otherwise meter appears erratic
readings. Read two parameters at the same time are only available for measuring two different water sources.
(1) POWER
NOTE: Make sure you have connected the electrode to the meter before power on.
Momentarily press
PWR
button to turn on the meter, press and hold
PWR
button to turn off meter.
(2) Check PH mV value
Short press
MODE
to check pH in mV unit.
(3) CHANGE THE TEMP. UNIT TO
℃
/
℉
Short press
UNIT
button to toggle
℃
or
℉
.
(4) HOLD
Freeze the current readings of pH
, then icon “
Hold
” will appear on the top left of screen.
(5) AUTO POWER OFF
Meter will turn off automatically in 15 minutes when no use, to disable auto power off function by pressing
HOLD
and
PWR
button, “n” momentarily shows on screen, now meter is at non-sleep mode, then turns to
normal measurement, Meter default auto power off.
(6) FACTORY RESET
a)
pH electrode
Whenever replacing a new pH electrode. Long pressing
MODE+CAL
to enter pH calibration mode then strongly
recommend doing factory reset by pressing
SET+UNIT
under pH4/7/10 calibration mode, screen will
show “
rFS
” momentarily.
(7) TEMPERATURE PROBE TYPE SELECTION
NOTE:
If using NTC 10K probe but select 30K type. The temperature value will not be accurate.
Default setting is NTC 10K. User can change it depends on the electrode type to get the correct value.
NTC 10K:
Negative Temperature Coefficient 25
℃
= 10 K
NTC 30K:
Negative Temperature Coefficient 25
℃
= 30 K
NOT:
External temperature probe is excluded, user can enter the temperature degree by their own
temperature instrument, default: 25
℃
Adjustable range: 0.0
℃
~90.0
℃
Step 1:
Must
select correct probe type before measurement, otherwise the value would be incorrect.
Step 2:
Long pressing
UNIT
button, the meter default is
“
ntc 10k
”
, short pressing
UNIT
button to toggle ntc 30k
→
not.
Step 3:
Long pressing
UNIT
button again to save the setting, meter shows
“SA”
at the bottom of LCD and then
return to normal measurement mode.
