Hanna Instruments HI 9828, Инструкция по эксплуатации

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Chapter 4 - CALIBRATION MODE
HI 9828 allows to perform six different types of calibration, one for each param-
eter and also a quick single point calibration for all the parameters.
The calibration data are memorized in the non volatile probe memory. This func-
tion is useful to use the same probe with different meters without the need to
recalibrate.
• To perform a calibration, select “Calibration”
in the main menu with the arrow keys and then
press OK.
NOTE: If the password is enabled and the latest
function shown on display was not a
password protected feature, the meter
will ask to insert the password.
• Select the type of calibration with the arrow keys and then press OK.
The available options are:
Quick Calibration (allows the D.O. saturation, pH and conductivity calibration
with a single point procedure), pH, Dissolved Oxygen, Conductivity, Atmospheric
pressure, ORP and Temperature.
4.1 QUICK CALIBRATION
The quick calibration is a feature that allows the user to calibrate the multipa-
rameter probe on the field, with only one solution, HI 9828-25, in a fast and
easy way.
• Fill the calibration beaker with HI 9828-25 calibration solution.
• Screw the calibration beaker clockwise on the probe body. Some solution will
overflow.
• Wait a few minutes to stabilize.
• In Calibration menu, select Quick calibration
and press OK.
• A 3 items (pH, Conductivity and Dissolved
Oxygen)screen appears, the pH starts to blink and the “Not ready”message