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Condensation may appear on the cuvette when your sample is very cold and
the relative humidity is high. When this happens, the turbidity that you read
may be higher than the actual turbidity due to the light scattered by the
condensate on the cuvette. If you find yourself in this circumstance you can
alleviate the problem by either coating the cuvette with an anti-fogging
agent, or by running warm water over the cuvette for a short period of time
to warm the sample prior to measurement.
6.2 Battery Replacement
The instrument will periodically require new batteries to function properly.
This will be indicated with a flashing battery indicator on the display. To
replace the batteries:
1. Turn the instrument off and place it upside down on a soft surface.
2. Remove the two screws (A) securing the battery cover (B). Lift cover
off.
3. Remove the old batteries. Place four new “AAA” alkaline batteries (C)
into the battery compartment (ensuring the correct polarity).
4. Replace the battery cover and fasten the two screws carefully to ensure a
watertight seal.
5. Dispose of used batteries in accordance with your local regulations.
Figure 3: Detailed view of the battery compartment