- 10 -
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.
12. Technical Specifications
13. Icons and Functions
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
Calibrated points
Self-Diagnosis
Symbol
Er1, Er2, Er3, Er4, Er5, Er6
Stable reading indicator
Waterproof Rating
IP67, floats on water
Reading Lock
HOLD
Power
DC3V, AAA batteries*4
Bluetooth Signal
Battery Life
＞
200 Hours
Low power reminder
Backlight
White: Measurement.
Green: Calibration; Red: Alarm
Auto. Power Off
Automatically power off if no operation for 10 minutes
Dimension/Weight
Instrument
：
40×40×178mm/133g; case
：
255×210×50mm/680g;
Graph-3
LCD Display
Graph-4
pH calibration reminder
Graph-5
pH alarm triggered