Hanna Instruments HI 9321 - Manual (Page 25)

2 5
• When the temperature reading has stabi-
lized, use the
↑↑↑↑↑
°C or
↓↓↓↓↓
°C keys to set the
reading on the secondary LCD to that of
the reference thermometer.
• Press CFM. The primary LCD section will show "380.0 mV".
• Complete your temperature calibration by
pressing CAL if you do not want to perform
mV calibration.
mV CALIBRATION
• Use a mV simulator with a range of ±500.0 mV and an
accuracy of ±0.1 mV.
• Continuing from the temperature calibra-
tion, the primary LCD section will show
"380.0 mV".
• Select 380.0 mV on the simulator.
• Wait for 3 sec., press CFM. The primary
LCD will display the next reading to be
selected on the simulator.
• Repeat previous two steps for -380.0 mV, 500.0 mV and
-500.0 mV.
• At the end of the mV calibration, the meter will automatically
return to the pH measurement mode.
INTERFACE WITH PC (HI 931400 & HI 931401)
If you are not using Hanna Instruments HI 92000 application
software, please find below some additional information to help you
link-up to your PC.
Setting the Baud Rate and the Command Prefix
The transmission speed (baud rate) of your meter and that of the
external device must be the same. To set the baud rate of the meter
press COMM, the primary LCD shows the current baud rate.
COMM