Hanna Instruments HI 96785 - Manual (Page 5)

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KEYPAD DESCRIPTION
•
ON/OFF: to turn the meter on and off.
• CAL: to calibrate the meter prior to measurement.
• READ: to make a measurement.
OPERATING MODES
•
Measurement mode: default operation mode, enables both calibration and measurement.
DISPLAY ELEMENTS DESCRIPTION
1) The measuring scheme (lamp, cuvette, detector), appears during different phases of zero or
reading measurement
2) Error messages and warnings
3) The battery icon shows the charging level of the battery
4) The hourglass appears when an internal checking is in progress
5) Status message
6) Four digit main display
ERRORS AND WARNINGS
The instrument shows clear messages when erroneous condition appears. Messages are also displayed
when the obtained values are outside expected range. The beeper is playing a beep on errors.
a) on calibration
Light High: There is too much light to perform a measurement.
Please check the preparation of the calibration cuvette.
Light Low: There is not enough light to perform a measurement.
Please check the preparation of the calibration cuvette.
No Light: The instrument cannot adjust the light level. Please
check that the calibration cuvette does not contain any debris.
CAL: A Calibration reading was not taken. Follow the instructions
of the measurement procedure for calibrating the meter.
b) on sample reading
Inverted Cuvettes: The sample and the calibration cuvette are
inverted.
1) CAL key
2) READ key
3) ON/OFF key
4) Liquid Crystal Display (LCD)
5) Cuvette holder
FUNCTIONAL DESCRIPTION
INSTRUMENT DESCRIPTION