de Glossar
Secondary standards for calibration control
Monitoring instruments in any application such as turbidity measurement require a periodical check for assuring correct measurement. Instruments with lower performance show significant drift that requires a regular calibration procedure, high quality monitors such as the AquaScat from SIGRIST-PHOTOMETER operate virtually drift free. However for quality assurance reasons there is often the need for checking of the performance as certified ISO 9001 operators typically prescribe mandatory verifications of their metering equipment.
FireGuard 2
The FireGuard detects emerging fires already at their early stages (cold smoke). The sensor uses the available natural air stream in the tunnel. Any influence caused by fog will be eliminated by optional heating elements. The sensor is very compact and ha
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AquaScat 2 HT
The AquaScat measures turbidity of potable water according to IEC 27027 in a free-falling water stream. This contactless design eliminates window foiling and minimizes servicing which is especially of importance with the version HT for high turbidity. Cal
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AquaScat 2 P
The AquaScat measures turbidity of potable water according to IEC 27027 and is specially designed for installations with highly gaseous water under pressure. Calibration check is performed with a calibration unit with a glass reference that is mounted whe
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AquaScat 2 WTM
The AquaScat measures turbidity of potable water according to IEC 27027 using 90+° scattered light detection in a free-falling water stream. This contactless design eliminates window foiling and minimizes servicing to a minimum. Calibration check is perfo
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TurBiScat
The TurBiScat monitors turbidity in liquids, optional also the (beer)colour in EBC. The combination of Hastelloy and sapphire in a sealless design allows operating the unit in practically all process applications. Turbidity measurement is done with colour
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StackGuard
The StackGuard continuously monitors the scatted light intensity of an extracted, withdrawn sample of gas. The laser light source minimized stray light and improves sensitivity to the µg/m³ level, the filtered purge air prevents from window soiling. A cal
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FireGuard
The FireGuard measures the scattered light intensity in tunnels with scattering angle, measuring range, response threshold and signal processing being optimized for smoke and fire detection. Air sample is fed through the measuring cell without the use of
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AquaScat HT
The AquaScat measures turbidity of potable water according to IEC 27027 in a free-falling water stream. This contactless design eliminates window foiling and minimizes servicing which is especially of importance with the version HT for high turbidity. Cal
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AquaScat P
The AquaScat measures turbidity of potable water according to IEC 27027 and is specially designed for installations with highly gaseous water under pressure. Calibration check is performed with a calibration unit with a glass reference that is mounted whe
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StackGuard System
The StackGuard continuously monitors the scatted light intensity of an extracted, withdrawn sample of gas. The laser light source minimized stray light and improves sensitivity to the µg/m³ level, the filtered purge air prevents from window soiling. A cal
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VisGuard OMD
The VisGuard measures the scattered light intensity of a sample drawn into the instrument. Filtered purge air is fed through the flow cell, thus enveloping the sample in a protective shroud of clean air. This effectively keeps the optics clean. Oil dust i
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VisGuard OMD
The VisGuard measures the scattered light intensity of a sample drawn into the instrument. Filtered purge air is fed through the flow cell, thus enveloping the sample in a protective shroud of clean air. This effectively keeps the optics clean. Oil dust i
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DualScat
The DualScat monitors turbidity in liquids, using a single light source to detect transmittel light and scattered light at 90° and 25°. This allows for getting information about the particle size causing the turbidity as well as for compensation of colour
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DualScat Ex
The DualScat monitors turbidity in liquids, using a single light source to detect transmittel light and scattered light at 90° and 25°. This allows for getting information about the particle size causing the turbidity as well as for compensation of colour
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VisGuard Extractive
The VisGuard measures the scattered light intensity of a sample drawn into the instrument. Filtered purge air is fed through the flow cell, thus enveloping the sample in a protective shroud of clean air. This effectively keeps the optics clean. Installati
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VisGuard Extractive
The VisGuard measures the scattered light intensity of a sample drawn into the instrument. Filtered purge air is fed through the flow cell, thus enveloping the sample in a protective shroud of clean air. This effectively keeps the optics clean. Installati
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VisGuard In-situ
The VisGuard measures the scattered light intensity of a sample drawn into the instrument. Filtered purge air is fed through the flow cell, thus enveloping the sample in a protective shroud of clean air. This effectively keeps the optics clean. Installati
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VisGuard In-situ
The VisGuard measures the scattered light intensity of a sample drawn into the instrument. Filtered purge air is fed through the flow cell, thus enveloping the sample in a protective shroud of clean air. This effectively keeps the optics clean. Installati
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LabScat
The LabScat monitors turbidity in liquids, using a single light source to detect transmittel light and scattered light at 90° and 25°. This allows for getting information about the particle size causing the turbidity as well as for compensation of colour
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René Gehri
Water, Beverages & Food, Industrial Processes
Pascal Schärer
Traffic & Environment