Water Turbidity Meter
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The AquaScat measures turbidity of potable water according to IEC 27027 using 90+° scattered light detection in a free-falling water stream (models WTM, WTM A, HT). This contactless design eliminates window foiling and minimizes servicing to a minimum. Calibration check is performed with a calibration unit that is either mounted to perform the check or that is already built in (depending on variant).
APPLICATIONS
Turbidity measurement in raw water
Monitoring of flocculation and dosage of flocculants
Filtration monitoring of filter performance and back-wash control
Turbidity measurement in treated and final waters
Turbidity monitoring of water in storage and distribution networks
Turbidity measurement in process and waste waters
True non-contact measurement in free-fall stream (models WTM, WTM A, HT) making it virtually maintenance free
Dual beam measurement in optimized cell (model P)
Re-calibration with secondary standard (fully automatic at model WTM A)
Lowest stray light levels
Convenient operation via touch screen
Graphical display of trends and/or values
Visualization of measured values over the previous month
SPECIFICATIONS
Measuring principle:90° Scattered light according toISO 7027/EN27027
Light source: LED 880 nm
Measuring span:0 .. 4‘000 FNU (WTM, WTM A, HT)0 .. 100 FNU (P)
Measuring ranges: 8, freely programmable
Resolution:0.001 FNU (WTM, WTM A, P); 0.1 FNU (HT)
Sample temperature: 0 .. +40 °C
Ambient temperature: –10 .. +50 °C
Operation: Touchscreen
Outputs:2 × 0/4 .. 20 mA, galv. isolated2 × Relays 250 VAC, 4A
Inputs:1 × for optional flow meter2 × 0/4 .. 20 mA
Digital interfaces: Ethernet, Modbus TCP, SD-card
Optional: Profibus DP, Modbus RTU
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