Page 4 - 6_TOC in daily practice

SCA-130-601

■ Sampling ■ Remote control
An analysis system is only as good as the The measuring instruments can be started
sample preparation preceding it. Various and calibrated from a control station, and a
sample preparation systems are available for selection between the different measuring
the 4200 series, which can be optimally tuned streams is possible. Numerous alarm and
to the individual application area. When status signals simplify detection of exceeded
sewage plant inlet and outlet are to be limit levels and indicate the need for
measured using the same instrument, the maintenance. In addition to the conventional
sample stream switcher is used. communication modes, a Modbus
communication channel is available. An
optional web browser enables a ‘view’ of the
instrument from any networked computer.
The software counts consumables such as
acids and pure water for dilution, and emits a
signal to the measuring station for refilling the
consumables.

■ Recommended analyzer / Configuration
TOC-4200
Multi-Stream suspended solids sampling unit
Acid Rinse option

Fig. Multi-Stream switcher

The sample enters the sample chamber via a
strainer, where it is homogenized through a
rotating knife before it is transferred to the
instrument for analysis. This way, even
samples containing large amounts of
particulate matter can be measured without
any problems. After sampling, the chamber
and the strainer are cleaned with rinsing
water. Depending on the application, the
rinsing water can be acidified in order to
prevent the growth of algae. The rinsing
function prevents any carry-over effects when
changing sample streams. The measuring [1] Source: Wikipedia
program can be individually selected for each
sample stream. In addition, the user can
freely choose the measuring sequence of the
sample streams.