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Hanna Instruments HI 2221 User Manual

Page 20

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• If “no bUF” message appears on the LCD, the instrument informs

you that the calibration was performed with less than five buffers.

• Calibration Expiration status:

- if disabled.

- or the number of days until the calibration alarm will be displayed,

- or if expired (7 days ago).

• The instrument ID.

Notes: • Press GLP to return to measurement mode.

• If calibration has not been performed, the instruments

display “no CAL” message blinking.

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