Water Quality OnLine Drinking Water - S-can

Physical Probes
“How do we measure”
Just as all other s::can instruments the s::can physical probes can
be operated according to the “plug & measure” principle. With a
simple plug connection, which provides power supply and data
communication, the s::can probes are connected to an s::can terminal
and are ready for use. All s::can probes are pre-calibrated ex
works and do not require any conditioning before they can be used
- all can be used continuously (OnLine) and directly in the water
(InSitu). The “plug & measure” principle avoids complex installation
procedures on site and thus does not only save time during
initial operation, but also reduces avoidable errors.
The highly optimised design completely eliminates all moving
parts in contact with the water. This reduces failures and maintenance
dramatically.
Using standardised mounting devices s::can physical probes can
be installed quickly and effortlessly, either submersed (InSitu) or
in a fl ow through setup (by-pass, monitoring station).
Like all other s::can instruments s::can physical probes are intelligent
instruments - amongst others local calibrations are stored on
the probes and auto-diagnosis procedures are used to ensure best
possible operation.
oxi::lyser (see fi g.1)
is an optical multi-parameter probe that measures the concentration
of dissolved oxygen and the temperature directly in the water.
The oxi::lyser does not need a minimum fl ow to produce accurate
readings and integrates the temperature measurement for On-
Line correction. The sensing element, which uses the principle of
fl uorescence for the oxygen measurement, is neither affected nor
damaged by direct exposure to sunlight. Under normal conditions,
fouling of the sensing element will not affect the results. However,
to be sure that fouling is kept to a minimum, the oxi::lyser
can be cleaned automatically with compressed air. The oxi::lyser
uses no replaceable parts or consumables. Therefore, when operated
properly there will be no costs for spare parts at all. For
the oxi::lyser we guarantee replacement of spare parts free of
charge for the fi rst three years after delivery (upon presenting the
warranty card).
condu::lyser (see fi g.2)
is a multi-parameter probe that measures conductivity and temperature
directly in the water. The condu::lyser does not require
a minimum fl ow to produce accurate readings and uses the temperature
to correct the conductivity measurement online. The
4-electrode measurement of the electrical conductivity produces
results that are practically independent of possible fouling. The
condu::lyser uses no replaceable parts or consumables. Therefore,
when operated properly there will be no costs for spare parts at all.
pH::lyser (see fi g.3)
is a multi-parameter probe that measures the pH value and temperature
directly in the water. The pH::lyser uses the temperature
to correct the result of the pH measurement online. The non-porous,
solid-state reference electrode ensures excellent pH readings
and a long lifetime of the electrode.
redo::lyser
is a probe that measures the oxidation-reduction potential (also
known as redox potential) and temperature directly in the water.
The non-porous, solid state reference electrode ensures excellent
ORP readings and a long lifetime of the electrode.
chlori::lyser
chlori::lyser monitors free or total chlorine - mounted in a fl ow cell
setup. Due to the membrane covered amperometric measuring
principle, fl ow and pH fl uctuations of the water do not infl uence
the measurement result. Additionally, the integrated temperature
compensation and the special, third electrode completely eliminates
potential interferences.
Their unrivalled measurement features in combination with the lowest
possible total costs - initial cost and foreseeable operational costs
- make s::can sensors the most attractive solution available today.
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