Sper Scientific 850061 pH SD Card Datalogger Kit - Manual (Page 23)

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MEASUREMENT
PROCEDURES
Turning the Unit On/Off
1. Press POWER to turn the meter
on.
2. Press and hold POWER for 2
seconds to turn the meter off.
Selecting the Function
1. Press and hold FUNC to cycle
through the options listed below.
Release FUNC when you reach
the desired function.
Defaults
The meter will default to the following
settings:
•
pH
“pH” appears on the LCD.
•
mV
“mV” appears on the LCD.