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Water Quality Colour Monitoring

ProDetec supplies online water quality colour monitoring solutions for water utilities, municipal treatment plants, and industrial process operators across Australia. Continuous, real-time measurement of colour (Hazen units) and dissolved organic carbon as an integrated part of treatment process control. 

Colour in source water is primarily caused by natural organic matter, including humic and fulvic acids, and elevated readings signal changes in catchment conditions that directly affect coagulant dosing, disinfection efficiency, and compliance with Australia’s Drinking Water Guidelines.

Without a reliable water quality monitor at the raw water intake and treatment stages, colour events can go undetected until they affect finished water quality, which creates compliance risk, consumer complaints, and costly reactive treatment adjustments.

ProDetec supplies the Sigrist ColorPlus range, which is a purpose-built online water quality monitoring instrument measuring colour and UV 254 simultaneously across up to three wavelengths, with automatic turbidity compensation for True Colour readings, tool-free fouling correction, and straightforward SCADA integration.

With over 22 years of experience and local service support across Australia, ProDetec provides end-to-end water quality colour monitoring solutions from specification through to long-term maintenance.

AquaScat website (560 x 450 px)
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Range of Water Quality Colour Monitoring

AquaGuard PR 30

AquaGuard PR 30

The AquaGuard PR 30 measures up to five parameters directly in the water – without the use of expensive pumps and with zero water loss! The portable measuring system consists of an AquaScat S and can be equipped with up to three probes from Hamilton. This allows the AquaGuard PR 30 to be conveniently adapted to the measurement requirements. The SICON M operating device is used for control.

AquaMaster

AquaMaster

AquaMaster is a compact measuring system for the following parameters: turbidity, pH, conductivity, Redox, dissolved oxygen and temperature. The various parameters can be combined individually. The colour touch screen of the AquaScat is the central control and display unit, as well as the connection to the host control system. Up to 8 measuring values can be transmitted. The measuring station is delivered completely pre-mounted. It requires only connecting the water inlet and water outlet. Connect – Adjust flow rate – Measure! Special attention was paid concerning maintenance. Holders and trays are integrated to leave both hands free for cleaning and calibration tasks.

AquaScat 2 WTM | True non-contact turbidity meter (ISO 7027)

AquaScat 2 HT | High-Turbidity Meter for Raw Water

The AquaScat measures turbidity of potable, recycled and  raw water according to IEC 27027 using 90° scattered light detection in a non-contact, free-falling water stream. This contactless design eliminates window fouling and eliminates the need for regular maintenance, reducing downtime and labour costs.

Calibration is performed either automatically (AquaScat WTM A version) or manually (AquaScat WTM / HT) with a calibration checking unit specific to that instrument.

With a range of 0-4,000NTU, the AquaScat WTM is sensitive enough to be used for post-filtration potable water to a heavy rain event raw water. There are 8 pre-set 4-20mA measuring ranges in the AquaScat WTM, but any of these can be easily modified to suit your specific purpose (see the AquaScat video on setting your own measuring range).

AquaScat 2 WTM | True non-contact turbidity meter (ISO 7027)

AquaScat 2 WTM | True non-contact turbidity meter (ISO 7027)

The AquaScat measures turbidity of potable, recycled and  raw water according to IEC 27027 using 90° scattered light detection in a non-contact, free-falling water stream. This contactless design eliminates window fouling and eliminates the need for regular maintenance, reducing downtime and labour costs.

Calibration is performed either automatically (AquaScat WTM A version) or manually (AquaScat WTM / HT) with a calibration checking unit specific to that instrument.

With a range of 0-4,000NTU, the AquaScat WTM is sensitive enough to be used for post-filtration potable water to a heavy rain event raw water. There are 8 pre-set 4-20mA measuring ranges in the AquaScat WTM, but any of these can be easily modified to suit your specific purpose (see the AquaScat video on setting your own measuring range).

AquaScat S | In-Line Turbidity Sensor

AquaScat S | In-Line Turbidity Sensor

In-line turbidity measurement for water treatment

The AquaScat measures the turbidity of potable water according to IEC 27027 and the temperature, with the measurement carried out directly in the water. This reduces maintenance work to a minimum and has zero water loss. There is also a retractable option which allows the AquaScat S to be withdrawn for CIP and maintenance.

Calibration is done with a checking unit that has no consumables which enable the operator to return the instrument calibration to factory calibration, increasing operational efficiency whilst maintaining flexibility non real world applications.

ColorPlus 2 (In-line)

ColorPlus 2 (In-line)

Knowing the organic load of your raw water and the colour staining of your raw water intake can provide a feed-forward element of control to your water treatment process to optimise the treatment process and save money.

Until now, measuring the dissolved organics and colour required an expensive system. With the Sigrist ColorPlus the upfront cost is low enough so that your ROI is going to be much higher, much sooner.

The ColorPlus measures the colour by absorption online using up to three different wavelengths. The bypass measuring cell has been specifically designed for applications within the water industry. Depending on the configuration you select, it allows measuring DOC (UV absorption) and colour (Hazen) simultaneously while compensating for turbidity, which would otherwise influence the results

ColorPlus 2 O3 Water and Gas

ColorPlus 2 O3 Water and Gas

The ColorPlus O3 analyuser can be setup to measure ozone in either gases or ultra-pure water. Let’s have a brief overview of both versions.

Measuring Ozone O3 in Water: The Sigrist ColorPlus 2 O3 Ozone meter for ultra-pure water measures the ozone concentration at a wavelength of 254nm according to standard DIN 19627 and the IOA (International Ozone Association). This instrument has a special measuring cell with a path-length of 100mm which allows measuring ozone in ultra pure water in the ppb range.

Measuring Ozone for Gases measures the ozone concentration according to standard DIN 19627 and the IOA at a wavelength of 254nm. According to these standards, the extinction coefficient is 3024 l/mol cm. Therefore, the ozone measurement can be regarded as an absolute measurement requiring no calibration with ozone.

ColorPlus 3 Nitrate

ColorPlus 3 Nitrate

Nitrate is one of the most common groundwater contaminants in rural areas. Higher nitrate levels can pose a direct threat to health, but they also indicate the possible presence of other more serious contaminants, such as bacteria or pesticides.  Nitrate in groundwater originates primarily from fertilizers, septic systems, and manure storage or agricultural spreading operations.

The Sigrist ColorPlus 3 offers you online measurement of nitrate. We use a long-life xenon flash lamp is which offers a well-defined light spectrum over the wavelengths we require with a very low loss of intensity.

ColorPlus 3 SAK 254

ColorPlus 3 SAK 254

ColorPlus 3 SAK 254
UV absorption is an indicator of water pollution by certain dissolved organic substances, such as aromatic compounds or humic substances from the soil. Sigrist ColorPlus 3 offers you online measurement of UV Absorption with optional colour measurement. As a light source a long-lived xenon flash lamp is used having a very low loss of intensity over a long time!
The medium is measured with two optical path lengths from which any soiling is determined. The value measured is automatically corrected and the instrument informs the user when the measuring cell has to be cleaned. The PVC cover can be removed without tools. Free access to the optics allows simple cleaning of the measuring cell. The instrument indicates any maintenance due. The instrument is used in the treatment of drinking water as well as in the treatment of process water in various kinds of industries.

OilGuard 2W

OilGuard 2W

The instrument is used for monitoring oil traces in raw, surface run-off, process and wastewater. As a result of the non-contact (free-fall) measurement, there is no drift in readings as a result of window fouling. Another benefit of this design feature is the extremely low need for maintenance. This instrument is for non-hazardous applications.

No external operator interface is required as the colour touch-pad is integral to the analyser.

If the environment is hazardous, please refer to the OilGuard Ex