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Turbidity & Suspended Solids

ZÜLLIG Turbidity and Suspended Solids Sensors are highly accurate nephalometric and absorption systems using optically ground focused lenses to monitor and control your application. Thanks to the latest technology, it has become possible to measure turbidity and solids content with only one sensor. The sensor has a flat face without crevices which means fouling is almost eliminated. This makes them ideal for food, water and wastewater applications.

A single sensor can accurately monitor drinking water after filtration while monitoring the high contamination back flush cycle at several thousand NTU. An integral automatic wiper can be provided for very fatty or oily applications. Drains in the Dairy and Food industry and high temp chemical recovery circuits are typical applications. The sensors are of 316 Stainless steel with sapphire, optically ground lenses to ensure they are almost impervious to chemical and mechanical damage. The small size (38 mm dia.) of the body and flat face allows installation into even small lines and drains without restricting flow.

Specifications

Sensor	Turbidity	Suspended Solids
Type of Measurement	Combined multiple-beam concept, with infrared-diode system and beam focusing, wavelength 860nm
Measuring Range	Programmable between 0.001 to 10,000 NTU	0.1 - 400 g/L   SiO2 0.1 - 100 g/L biological sludge
Turbidity Standard Deviation	0.3% of programmed measuring range	Depending on calibration quality
Operating Temperature	0-60 ° C; (0-110 optional)
Material in contact with the media	Stainless Steel DIN 1.4436, Sapphire
Pressure Rating	10 Bar
Controller
Optimal Controller	B-Line	B-Line
Power Supply	230 VAC; 24 VDC	230 VAC; 24 VDC
Display	Backlit Dual Screen LED	Backlit Dual Screen LED
Analog Outputs	4 to 20 mA; Dual form C relays	4 to 20 mA; Dual form C relays
Serial Interface	RS 485	RS 485
Housing	IP65 Field mount	IP65 Field mount

Dimensions

TURBIDITY & SUSPENDED SOLIDS PROBE

The s::can spectro::lyser. Versatility and precision.

The revolutionary s:;can spectro::lyser is a multi parameter submersible UV/Vis spectrophotometer. This unique technology allows you to measure numerous parameters including turbidity and suspended solids that usually require the use of several different cabinet analysers. Parameter concentrations from g/l down to the µg/l region are calculated from the complete UV/Visible spectrum, enabling a level of precision and long term stability that has not been possible until now. The s::can spectro::lyser can be operated in the internal data-logger mode, via PC/laptop, or via our industrial terminal "con::stat".

The number of concurrently available parameters is relatively unrestricted and pre set "global "calibrations for many applications are readily available.

All of the functions of a high quality 2-beam laboratory spectrometer are packed into the ultra-compact and robust field instrument. s::can's advanced software options allow the utilisation of the spectral information for rapid and effective investigative work on almost any liquid stream from dirty industrial to ulrtrapure water.

Applications for Waste Water/Industrial

• 0.5 to 5mm measuring path
• Industrial Waste Monitoring in Petrochem,Food, Chem industries
• Sewer sulphide and load monitoring
• Inlet load monitoring to indutrial and municipal WWTP's
• Feed forward control of chemical dosing to DAF and other treatment processes
• Control of carbon dosing and denitrification systems
• Monitoring for compliance of discharges to the environment.

Applications for Drinking Water

• 35mm to 100mm measuring path
• Raw water monitoring and alarm systems
• Distribution system monitoring and management
• Control of treatment processes ( coagulation, filtration, chlorination, ozonation,chloramination etc)
• Evaluation and elimination of taste and odour events
• Minimisation of chlorine dosing
• Prediction and quantification of THM formation
• Monitoring for ultra-pure water for the pharmaceutical and electronic industries
  

Features

• Multi parametric
• Real time
• Robust and versatile
• In-situ
• Drift free
• Almost zero maintenance
• Low operation costs
• Chemical free
• Portable
• On board data logging
• Simple data transfer to Excel

Specifications

s::can spectro::lyser
Submersible UV/Vis Spectrometer range	200 - 730nm (2.5nm bandwidth) or 200 to 380nm (0.8nm bandwidth) with increased resolution
Light Source	Xenon Flash Lamp
Mounting	Direct insertion style with 7.5 metre cable
Dimensions	Length 550mm x  Diameter 44mm
Pathlengths	0.5mm to 5mm ( wastewater) 5mm to 100mm ( Water)
Cycle Time	User programmable from 30 seconds
con::stat
Display	Full colour back-lit touch-screen display of current values, spectral fingerprint and historic trends
Signal Output-expandable	1.  Four analog outputs 2.  Six digital outputs 3.  Analog and digital input 4.  RS 485 TCP/IP RS232 as required
Range	1.  <0.1 mg/l to 260 mg/l Nitrate as N 2.  DOC levels from ppb to 10,000mg/l COD 3.  0.001 equiv FTU to 5000 mg/l solids via variable path length modules
Supply voltage	230V AC   10 - 30V DC at 50 watts maximum Note:  integral user selectable timed sleep mode
Housing	IP65

Installation Options

• Bypass
• Pipe
• Channel
• Tank
• In-bore
• Submerged
• Sewer
  

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Application Papers

s::can spectro::lyers for Drinking Water and Enviromental Monitoring

In order to prevent any jeopardy to the drinking water consumers' health, the measure data must be available continuously and without delay.  This is the only way to allow quick reaction to changes in the water quality.  These requirements can only be fulfilled by on-line assessment of the raw and drinking water qualities.

Read more...

Removal of Organics during Water Treatment Studies Using the s::can spectro::lyser

Organic material that is not removed by conventional water treatment contributes to a number of problems in modern water supply systems.  The s::can spectro::lyser offers the opportunity to rapidly study the effect of treatment over a full range of wavelengths, at multiple sites without having to wait for laboratory data.

Read more...