Aquamatic Aquacell S100, User Manual

Page: 139 / 170

6.63
OPERA
TION
A Few simple DO’S and DON’TS when operating
your Sampler
Do's
1. Do ensure that the plastic surface inside the chamber top,
particularly between the electrodes, is kept clean and free from
wastewater contamination.
2. Do ensure intake filter is correctly suspended in the water.
3. Do ensure that there are no leaks in Intake Hose joints. Leaks
will cause air bubbles to be entrained in the water being drawn
up the Intake Hose and, in turn, the samplers lift velocity will be
degraded.
4. Do ensure there are no sags in the Intake Hose. - These retain
water from previous samples and cause cross contamination of
samples.
5. Do check humidity indicator regularly. It is vital that all the
electrical parts are kept dry. Always change the Desiccant Bag
when 40% circle on indicator turns pink.
6. Do take great care to ensure that sample frequency and size are
optimised to provide a true representation of the wastewater flow.
Companies can often obtain advice from their local water company
particularly where samples are being taken in connection with
charge assessment / consent limits.
7. Do disconnect battery (if fitted), if Sampler is not used for
prolonged periods, as failure to do so can cause damage to occur.
8. Do keep the sample volume small where a wastewater has the
potential to create foam. This has the effect of minimising the time
that wastewater is dropping out of the Volume Control Tube and
hitting the surface of the wastewater accumulating in the Sample
Chamber, (so creating foam), before the Volume Control Tube
becomes immersed.
Don’ts
1. Don't leave samples for longer than necessary before analysing
them. When the samples are biologically active, the degradation
can be minimised by storing them in a refrigerator set to about
4°C.