Hanna Instruments HI 9829 - Temperature Calibration; Atmospheric Pressure Calibration

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7.8 TEMPERATURE CALIBRATION
The probe is factory calibrated for temperature readings. The user can perform a
single point temperature calibration or restore factory calibration. This proce-
dure requires a reference temperature measuring instrument.
• Select “Temperature” from the “Calibration” menu.
• Select “Calibrate temperature”.
• Insert the probe in an isothermal bath with reference instrument and allow the
probe to come to thermal equilibrum.
• Use the keypad to enter the known temperature and then press <Accept> to
confirm.
• The stability timer will count down and the mes-
sage “Ready” and <Confirm> will be displayed.
•Press <Confirm> to store the calibration point.
• After confirmation, the following messages are
displayed “Storing” and “Calibration completed”.
• Press <OK> to return to the “Calibration” menu.
• Press <Measure> to return to the measurement
screen.
• To restore the factory calibration, select the
corresponding option in the “Temperature
calib.” menu and then press <Select>.
7.9 ATMOSPHERIC PRESSURE CALIBRATION
Place HI 9829 in a wind-free area and choose “Custom pressure” to perform a
user calibration or “Restore factory calib”.
Note “Custom pressure” procedure requires
a reference barometer.
Select the “Atm. pressure” from the “Calibration”
menu.
• Select the “Custom pressure” option.
• Using the keypad, insert the numeric value that
agrees with the reference meter and then press
<Accept> to confirm.