Hanna Instruments HI 96729C, Инструкция по эксплуатации

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STARTUP
Prepare the instrument for measurement as follows:
• Unpack the instrument by removing the dust protection sleeve from the instrument cuvet holder.
• Place the battery in the instrument as described in the “BATTERY REPLACEMENT” chapter.
• Place the instrument on a flat table.
• Do not place the instrument under direct sun light.
• In order to avoid reagent leaking and to obtain more accurate
measurements, it is recommended to close the cuvet first with
the supplied HPDE plastic stopper and then with the black
cap.
• Whenever the cuvet is placed into the measurement cell, it
must be dry outside, and completely free of fingerprints, oil
or dirt. Wipe it thoroughly with
HI 731318 or a lint-free
cloth prior to insertion.
• Shaking the cuvet can generate bubbles in the sample, causing higher readings. To obtain
accurate measurements, remove such bubbles by swirling or by gently tapping the cuvet.
• Do not let the reacted sample stand too long after reagent is added, or accuracy will be lost.
• It is possible to take multiple readings in a row, but it is recommended to take a new zero
reading for each sample and to use the same cuvet for zeroing and measurement.
• After the reading it is important to discard immediately the sample, otherwise the glass
might become permanently stained.
• All the reaction times reported in this manual are referred to 20°C (68°F). As a general rule
of thumb, they should be doubled at 10°C (50°F) and halved at 30°C (86°F).
• In order to maximize accuracy, prior to a measurement follow the validation procedure to
be sure that the instrument is properly calibrated. If necessary, calibrate the instrument.
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