- 10 -
2)
Auto. Lock (P02)
–
Users can set the auto lock time from 5 to 20 seconds. For example, if 10
seconds is set, when the measured value is stable for more than 10 seconds, the measured
value will be automatically locked, and the HOLD icon will be displayed. Short press
to
release the lock. When the setting is "Off" , the Auto. lock function is turned off, that is, the
measured value can only be manually locked. Short press
to lock or unlock the measured
value. The HOLD icon will be displayed when reading is locked.
3)
Auto. Backlight (P03)
─
Users can set the automatic backlight time for 1 to 8 minutes. For
example, if 3 minutes is set, the backlight will turn off automatically after 3 minutes; when the
“
Off
”
is set, the auto. backlight function will be turned off, and short press
to manually
turn the backlight on or off.
4)
Auto. Power off (P04)
─
The auto. power off time can be set to 10 to 20 minutes. For
example, if 15 minutes is set, the meter will automatically shut down after 15 minutes if no
operation; when
“
Off
” i
s set, the auto. power off function will be turned off. Long press
to
manually shut down the meter.
5)
pH Calibration Reminder (P07)
–
set X hours (H) Or X days (D) in ZenTest mobile app
–
settings
–
Parameter
–
pH
–
Calibration Reminder. On the meter, you can only check the
values that’s been set up on ZenTest App. For example, if 3 days is set up, the Er6 icon (see
Figure-4) will appear in the lower right corner of the LCD screen in 3 days to remind you to
perform calibration, also in the ZenTest App there will be a pop-up reminder. After calibration
is finished or the reminder setting is cancelled in the ZenTest App, the Er6 icon will disappear.
6)
pH Back to Factory Default (P08)
–
Select “Yes” to recover instrument calibration to
theoretical value. This function can be used when instrument does not work well in calibration
or measurement. Calibrate and measure again after setting the instrument back to factory
default.
10 Technical Specifications
pH
Range
-2.00 to 16.00 pH
Resolution
0.01 pH
Accuracy
±0.01 pH ±1 digit
Calibration Points
1 to 3 points
Auto. Temperature Compensation
0
–
50˚C (32 –
122˚F)
ORP (mV)
Range
-1000 mV to 1000 mV
Accuracy
±0.2% F.S
Temperature
Range
0 to 50˚C (32
-
122˚F)
Accuracy
±0.5˚C
Graph-3
LCD Display
Graph-4
pH calibration reminder
Graph-5
pH alarm triggered