Hanna-instruments HI 98280 Instrukcja Użytkownika Pobierz pdf (Strona 38)

4.5 ATMOSPHERIC PRESSURE CALIBRATION

For this procedure a reference barometer is needed. During calibration the cur-

rent reading can differ up to 40 mbar from the calibration point.

Choose the “Atmospheric pressure” option from

the “Calibration” menu, then select the calibra-

tion type using the arrow keys and press <OK>.

• To perform a pressure calibration at a custom

point, select the “Custom pressure” option.

• Select the measure unit with the <Unit> key

and insert the pressure value with the keyboard.

• Press <OK> and wait for stable reading, then

press <Confirm> to store calibration data.

• After confirmation, the following messages are

displayed: “Storing data on probe, please wait...”, “Updating GLP data, please

wait...” and “Calibration completed”.

• Press <OK> to return to the “Calibration” menu.

• To return to the main menu, press ESC repeatedly.

• To restore the factory calibration, select the corresponding option in the “Pres-

sure calibration” menu and then press <OK>.

4.6 ORP CALIBRATION

The “ORP calibration” menu allows to perform a single point custom calibration

or to restore the factory calibration.

• Select the “Custom ORP” option and press

<OK>.

• Fill a beaker with a ORP solution (see “Accesso-

ries” section to choose the proper HANNA so-

lution).

• Using the keyboard, insert the solution value and

then press <OK> to confirm.

• When the reading is stable, press <Confirm>

to store the calibration point.

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 63 64

Brak uwag

Hanna-instruments HI 98280 Instrukcja Użytkownika Strona 38