Hanna-instruments HI 250 Manuel d'utilisateur télécharger pdf (Page 14)

 The calibration buffers in calibrating order.

The first pH calibration buffer:

The second pH calibration buffer:

The third pH calibration buffer:

Note:  The OLd message displayed beside the pH value means that

this buffer was not used during last calibration. Press and hold

down SET/CLR if you want to see calibration date (or time if old

calibration was made in the same day with current calibration).

 If no bUF message appears on the LCD, the instruments inform

you that calibration was performed in less than three points.

 pH resolution during calibration.

 Calibration Alarm Time-Out status:

if disabled.

or the number of days until the calibration alarm will be displayed.

or if expired (7 days ago).

CAL pH

BUF

CAL pH

BUF

CAL

BUF

CAL

INTV

CAL

CAL pH

BUF

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 39 40

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Hanna-instruments HI 250 Manuel d'utilisateur Page 14