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3.2
Key Operation
Short press: key press time < 2 seconds; Long press: key press time> 2 seconds.
Power on: Press to turn on. Power off: long press 2 seconds off.
Special notes: After meter power on, wait about 30 seconds to read value or operatation.
Table - 1 Key operation and functions
Key
Operation
Functions
Short
Press
⚫
In the shutdown mode: press the key to boot
⚫
In measurement mode: press to turn backlight on or off
Long Press
⚫
Press and hold for 2 seconds to turn off
Short
Press
⚫
In measurement mode: press the key to switch unit: %→mg/L
or %→ppm
Long Press
⚫
In the measurement mode: press the key for 2 seconds to enter the
calibration mode
Short
Press
⚫
T
o cancel any operation, press to return to measurement mode
Short
Press
⚫
In the menu mode: press the key to change the serial number or
select the parameter
Short
Press
⚫
In the menu mode: press the key to change the serial number or
select the parameter
Short
Press
⚫
In measurement mode: press to enter menu mode;
⚫
In calibration mode: press key to calibrate;
⚫
In the menu mode: press key to confirm the parameter.
①
Measurement mode icon
⑦
Auto lock icon
②
Reading/Measured Value
⑧
Temperature Compensation
ATC — Auto Temperature Compensation
MTC — Manual Temperature Compensation
③
Symbol
④
Units of Measurement
⑤
Temperature unit
⑨
Reading Stability Icon
⑥
Temprature value / Symbol
⑩
Low Voltage Icon
Fig.-2
