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Instruction Manual
HI 253
Microprocessor-Based
pH/mV/Ion/ºC
Bench Meter
pH
Functions
pH Calibration - 3 point
s
RCL
LOG
CLR
SET
C
C
RANGE
GLP
CFM
CAL
pH / ORP
/ Ion Meter
HI 253
Confirm Calibration
in selected pH Buffer
CFM
Select pH Buffer
/
Start/Exit Calibration
CAL
Select pH/ORP/
mV/Ion
Scroll Log Dat
a Rel
RANGE
GLP
Show GLP
Data
LOG
Store
Log Data
SET/CLR
Set Instrument Parameters
Clear Calibration/Log Dat
a
RCL
Recall
Log Data
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