User Guide

7
OPERATIONAL GUIDE
POWER CONNECTION
Plug the 12VDC adapter to the meter and to
the mains.
HI964400 uses an EEPROM to retain the
D.O. calibration and temperature calibration
as well as the serial communication setting.
The instrument will store the respective data
after a calibration or serial communication
setting, even when it is not plugged-in.
LCD FUNCTIONAL DESCRIPTION
P
r
i
mary
Di
sp
l
ay
Secondary Display
1
2
DATEppm TIME
CFM MEM
WRONG
CAL
LOG
°C
m
S
INTV
BUF