Hanna-instruments HI 84529-01 Manual de usuario descargar pdf (Pagina 26)

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Operational Guide

1 Point Calibration

1. The 8.30 bu er will be selected by default. If necessary, press the

ARROW keys in order to select a di erent

bu er value.

2. The (unstable measurement)

symbol will be shown on the display until

the reading becomes stable.

3. When the reading is stable and close

to the selected bu er, the

(unstable

measurement) symbol will disappear and

the CONFIRM key will become active.

4. Press CONFIRM to con rm the

calibration or ESC to exit calibration.

5. After the calibration point has been

con rmed, press ESC to exit without

performing the second calibration point.

2 Point Calibration

6. After pressing CONFIRM in step 4 of

1 point calibration procedure of the

calibrated value will be shown on

the display and the second expected

bu er value will be displayed.

7. Remove the electrode holder with

electrodes from the top of the beaker.

8. Place the second beaker with calibration bu er in the beaker holder.

Rinse the electrodes in a beaker containing the second bu er rinsing

solution.

9. Place the electrode holder (with electrodes) on the top of the beaker

and secure it by turning clockwise and press STIR.

10. If necessary, press the ARROW keys in order to select a di erent bu er

value. The

(unstable measurement) symbol will be shown on the

display until the reading becomes stable.

11. When the reading is stable and close to the selected bu er, the (unstable

measurement) symbol will disappear and the Con rm key will become active.

12. Press CONFIRM to con rm the calibration.

13. The calibrated value will be shown on the display and the third expected

Electrode

Calibration

Procedure

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Hanna-instruments HI 84529-01 Manual de usuario Pagina 26

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