4
FUNCTIONAL DESCRIPTION HI 9321
MR
°C
MEM
ON/OFF
°C
RANGE
CFM
CAL
CFM
Confirm when ready
/
Select buffer 2 value
CFM
Confirm when ready
/
Select buffer 1 value
CAL
Start calibration
pH calibration procedure
Select pH or ORP measurement
MR
Recall previous stored data
MEM
For storing display result
RANGE
Function
HI 9321
MICROPROCESSOR
pH METER
ins rum n s
1
2 3
4
5
6
7
8
°C
1
2
pH
pH
mV
CAL
MEM
NOT READY
CON WRONG
BUF
I. BNC Socket
II. Reference Electrode Socket
III. Reference Electrode Socket
IV. Temperature Probe Socket
V. Reset Button
VI. VDC Power Socket (for HI 710005 or HI 710006)
1. Liquid Crystal Display
2.
CAL
enters and exits calibration mode
3.
CFM
confirms calibration values
4.
↑↑↑↑↑
°C
and
↓↓↓↓↓
°C
manually set temperature and select pH
buffer values
5.
MR
recalls the stored value
6.
MEM
stores a value in memory
7.
RANGE
selects measurement range
8.
ON/OFF
turns meter on and off
