User Manual

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3.2. Keypad
Keypad operations: short press— <1.5 seconds; Long press — >2seconds.
Keypad operations and descriptions
Keypad Operations Descriptions
Short press
 Turn on/off the power.
Attention
: Only under measuring mode can the meter be
turned off. If under calibration or parameter setting mode, the
operation will be invalid. You need to press <ENTER> and go
back to measuring mode. Then press < > to turn off.
CAL
Short press
 The meter will go to calibration mode. Short pressing again
starts calibration.
MODE
Short press
 To select the parameters: →
Long Press
 Enter into parameter setting mode P1. Once in this Mode,
short press to enter P2, P3, P4 and so on.
UNIT
Short press
 In pH measuring mode: press the button to change the
resolution repeatedly: 0.01→0.1pH
 In mV measuring mode：press the button to change
parameter mode: →
 In parameter setting mode: press the button to move the
number position.
ENTER
Short press
 In calibration mode: press this button to confirm 1-point or
2-point calibration and then return to measuring mode.
 In parameter setting mode: press the button to confirm
parameter setting and then return to measuring mode.
 In (RM) mode: press button to return to measuring mode.
ON
OFF
ON
OFF