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Sigrist PhaseGuard

PhaseGuard

The PhaseGuard monitors phase change of product with water, yeast or CIP transitions by methods of turbidity or colour. The three models of the PhaseGuard cover most the possible applications: phase switch for turbidity (model T), for high turbidity (model HT) or based on of the products (model C). 

The PhaseGuard is factory adjusted with a universal measuring range based on absorption. For simple applications and system integration the instrument configuration and communication can be easily done using the serial interface in the instrument itself. combination with the existing outputs. For local monitoring and control, the optional control unit SICON with touch screen technology and colour display can be connected. 

Sigrist ColorPlus 2 (HAZEN and DOC Measurement in Raw Water)

ColorPlus 2 (HAZEN and DOC Measurement in Raw Water)

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

Sigrist 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.

Sigrist 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.

Sigrist ColorPlus Ex

ColorPlus Ex

The ColorPlus Ex, in both inline and bypass configurations, is designed to accommodate up to three different light sources (UV and visible range) for the measurement of color, DOC and concentrations. For example, one (or two), of the colours can be used to measure concentration, and the third light source can be used for turbidity compensation, if turbidity is a potential complicating factor in your process.

This ColorPlus Ex version features a flameproof encapsulation and is offered for installations in areas requiring explosion protection.