Hanna Instruments hi 931400 User Manual

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