Upload
brennan-coker
View
238
Download
2
Embed Size (px)
Citation preview
Sigrist AquaScat
AquaScat WTM A
Page 2 Doc. No. 11892 E/1
AquaScat WTM A
Page 3 Doc. No. 11892 E/1
Non-contact free-fall concept
Water passes through the AquaScat without touching the optics:
» No window fouling. Hence, the measured values are not falsified and there is no drift.
» Very Low to very high turbidity values can be measured with no contamination of the optics
» Dissolved metals like iron or manganese do not contaminate the optics
» Extremely low maintenance is the result
Measuring light passes through the entire sample beam:
» There is no selection of the sample at the surface. The entire water beam is measured and hence, the result is representative.
AquaScat WTM A
Page 4 Doc. No. 11892 E/1
AquaScat WTM A
Page 5 Doc. No. 11892 E/1
Re-calibration with secondarystandard (High stability optical glass)
» Precise re-calibration is possible without the use of Formazine
» Allows a stable measurement over a long time period
» Allows a fully automatic operation » Purchase and storage of Formazine
is not needed
WTMA: Automatic calibration check
WTM and HT: Manual calibration check
AquaScat WTM A
Page 6 Doc. No. 11892 E/1
Manual calibration method for AquaScat WTM and HT
AquaScat WTM A
Page 7 Doc. No. 11892 E/1
Automatic calibration method for AquaScat WTMA
AquaScat WTM A
Page 8 Doc. No. 11892 E/1
Low levels of stray light
The design of the AquaScat in combination with
high quality optical components minimizes the
quantity of stray light inside the instrument:
AquaScat WTM A
Page 9 Doc. No. 11892 E/1
Control Unit
The control unit of all AquaScat is a colour touch screen:
» Values, graphs, alarm and status messages can be selected by the operator.
» An internal data logger allows the recall of measured data for the last 32 days
» Password protection avoids unauthorized access
» Various means of communication including an integrated web server
AquaScat WTM A
Page 10 Doc. No. 11892 E/1
Cost of ownership
In addition to its daily dependability, the product design was focused on long useable life and low maintenance costs:
» The maintenance work is very low» The cost for consumables during 10
years of operation are at AUD 150
AquaScat WTM A
Page 11 Doc. No. 11892 E/1
Turbidity measurement application
» The installation is simple» An optional de-aeration system can be
installed if required.» 2 Analogue outputs can transfer two
measuring ranges to the PLC
AquaScat WTM A
Page 12 Doc. No. 11892 E/1
AquaScat Wall Mounting Set
Level Control overflow
Inlet to AquaScat
Flow Control Valve
Docking Station
Level Control
De-aeration tube
Water Inlet
Water Outlet