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7. Operation of the WP-88
1. Plug the Turbidity sensor into the
Turbidity
socket.
2. Switch the meter on.
3. Rinse the Turbidity sensor in distilled water and blot dry.
4. Place the Turbidity sensor into the unknown sample to be measured.
The TPS Turbidity sensor is designed for in situ measurements, so
the sensor can simply be immersed into the body of water to be
measured.
When taking measurements in a sample vessel, the vessel should
have a black or dark floor and walls to avoid reflection affecting the
reading. Ensure that there is a minimum of 30mm clearance to the
floor and walls of the vessel, as per the following diagram…
Take care to ensure that there are no bubbles trapped on the
underside of the sensor. Bubbles can interfere with Turbidity
measurements. Gently stir the sample or the sensor to dislodge any
bubbles.
5. The measurement may be recorded when reading has stabilised. The
Notepad function is ideal for this purpose (see section 9).
6. Clean and rinse the sensor (especially the glass lenses), with distilled
water after use. This is particularly important after use in high
Turbidity standards or sample solutions.