Hanna Instruments hi 221223 User Manual
1
Instruction Manual
HI 221 HI 223
pH/mV/ºC
Bench Meters
with Calibration Check
www.hannainst.com
Manufacturer since 1978
Functions
pH Calibration
HI 223
Calibration
Check
Microprocessor
pH Meter
Confirm
2 Buffer
nd
CFM
Select
2 Buffer
nd
/
Confirm
1 Buffer
st
CFM
/
Select
1 Buffer
st
Start Calibration
CAL
CFM/GLP
Show GLP
Information
Set Instrument
Parameters
Clear Log/Cal
Information
SET/CLR
RCL
Recall
Log Information
LOG
Store Log
Information
Select
pH/ORP
RANGE
RCL
LOG
CLR
SET
C
C
RANGE
GLP
CFM
CAL
C
ATC
pH
SLOW
FAST
POOR
GOOD