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• Press “Read” functional key to take the
measurement.
The display will show “READ” in the left side and
blinking dashes. The icon for lamp will appear during
different measurement phases. The first value is
displayed after 10 seconds and then a new average of
the available readings is displayed each second. When
a new value is displayed, the measurement value will
blink briefly. The last averaged value remains on the
display at the end of the measurement.
• Press “Read” functional key and keep it pressed to take continuous readings.
The display will show “READ” in the left side and blinking dashes. The dashes and lamp icon will
appear during different measurement phases. The first value is displayed after 10 seconds and then
a new reading is displayed each second as long as the “Read” functional key is kept pressed. When
a new value is displayed, the measurement value will briefly blink.
The last value remains on the display after the “Read” functional key is released.
AVERAGED MEASUREMENT
This measurement mode is useful when samples that cause unstable readings are analyzed. By
averaging several readings, noise effect is reduced and accurate measurements can be taken.
This mode can also be selected when high accuracy measurements are needed. In the average mode
10 measurements are averaged in a short period of time (about 20 seconds).
To use the averaged reading mode first enter setup and enable the Average reading mode. The “AVG”
text will be displayed in the left side of the screen.
HI 88703 automatically selects the correct turbidity
range to display the results with the highest accuracy.
If the measured value is higher than 4000 NTU
(980 EBC or 26800 Nephelos), the display will
show the maximum value blinking and the message
“Out of range” on the message line.
UNITS CHANGE
To change the units, simply press the “Unit” functional key when a measurement is available. The
Nephelos value is obtained by multiply with 6.7 the NTU value. The EBC value is obtained by
multiply with 0.245 the NTU value.
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