Hanna Instruments HI 83742 - Manual (Page 10)

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ERROR MESSAGES
The meter has lost its configuration. Contact your dealer or the nearest
Hanna Customer Service Center.
“Light high”: there is too much light to perform a measurement.
Please check the preparation of the zero cuvet.
“Light low”: there is not enough light to perform a measurement.
Contact your dealer or the nearest Hanna Customer Service Center.
“No Light”: the instrument cannot adjust the light level. Contact your
dealer or the nearest Hanna Customer Service Center.
a) on zero reading: a) on zero reading: a) on zero reading: a) on zero reading: a) on zero reading:
A flashing value of the maximum concentration indicates an over
range condition. The concentration of the sample is beyond the
programmed range: dilute the sample and measure again.
The sample absorbs less light than the zero reference. Check the pro-
cedure and make sure you use the same cuvet for reference (zero)
and measurement.
“Inverted”: the sample and the zero cuvet are inverted.
b) on sample reading: b) on sample reading: b) on sample reading: b) on sample reading: b) on sample reading:
Indicates that the batteries are dead and must be replaced. After this
message appears, the instrument is switched off. Change the batteries
and restart the meter.
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• After a few seconds the display will show “-0.0-”.
The meter is now zeroed and ready for measurement.
• Remove the cuvet from the instrument.
• Insert the sample (cuvet #2) into the holder and
close the lid.
#2
(Sample)
• Press READ/TIMER and “----” will blink during
measurement.
• The instrument directly displays the color hue on the
Liquid Crystal Display.
• Fill an empty cuvet with deionized water and replace
the cap. This is the zero zero zero zero zero.
#1
(Zero)
• Insert the zero cuvet into the holder and close the lid.
• Press ZERO and “----” will blink on the display.
INTERFERENCES
Suspended matter should be removed by centrifugation or prior filtration. Use an adequate filter
material that does not absorb color.