SShR-91 (AZhT-94/62)
The company’s first industrial water-monitoring instrument was the SShR-91 — a dual-channel turbidity meter and sludge-level monitor designed for sludge removal systems in water treatment clarifiers at the Pervouralsk Power Plant. Over the subsequent years, the device underwent successive improvements, resulting in modifications 2 through 5. It was widely adopted by power plants across Russia and Belarus for water treatment systems based on the classic clarification technology developed in the USSR/Russia—a method that remains 2.5 times more cost-effective than Western alternatives to this day. It holds Certificate of Conformity No. 97003006 in the SSSI Register.
There is no direct imported equivalent to the SShR-91, as such a device was not required for Western water treatment systems. To replace the hundreds of SShR-91 units currently in use, a sixth modification of this dual-channel instrument has been developed; it incorporates the optical cleaning system successfully proven in the AZhT-94/4 analyzer. Designated the AZhT-94/62, this universal dual-channel flow-through turbidimeter (which also functions as a sludge-level monitor) offers accuracy class 2.5 (an improvement over the SShR-91/5’s accuracy class 5). It is designed to both measure and signal threshold turbidity levels in water and other liquids within the 10–2600 EMF range (6–1500 mg/L kaolin equivalent). The instrument consists of an electronic control unit powered by a 220 V/50 Hz mains supply and a remote optical sensor powered by a low-voltage +15 V source. It is designed for operation in enclosed spaces or cabinets at temperatures ranging from 1°C to 45°C and relative humidity up to 95%. In the sixth version of the turbidity meter/alarm unit, the measurement range has been doubled; the sensor cells are transparent and illuminated to allow visual inspection of the liquid, the cell walls, and the operation of the cleaning mechanism. The cells open fully, quickly, and easily—in less than 30 seconds. Convenient access makes it easy to clean fouling from the cell walls. Personnel determine the need to clean the walls (rather than the optics) visually based on specific operating conditions, with cleaning required four times a year on average.
The dual-channel AZhT-94/62 turbidity meter is unique worldwide.
There is no direct imported equivalent to the SShR-91, as such a device was not required for Western water treatment systems. To replace the hundreds of SShR-91 units currently in use, a sixth modification of this dual-channel instrument has been developed; it incorporates the optical cleaning system successfully proven in the AZhT-94/4 analyzer. Designated the AZhT-94/62, this universal dual-channel flow-through turbidimeter (which also functions as a sludge-level monitor) offers accuracy class 2.5 (an improvement over the SShR-91/5’s accuracy class 5). It is designed to both measure and signal threshold turbidity levels in water and other liquids within the 10–2600 EMF range (6–1500 mg/L kaolin equivalent). The instrument consists of an electronic control unit powered by a 220 V/50 Hz mains supply and a remote optical sensor powered by a low-voltage +15 V source. It is designed for operation in enclosed spaces or cabinets at temperatures ranging from 1°C to 45°C and relative humidity up to 95%. In the sixth version of the turbidity meter/alarm unit, the measurement range has been doubled; the sensor cells are transparent and illuminated to allow visual inspection of the liquid, the cell walls, and the operation of the cleaning mechanism. The cells open fully, quickly, and easily—in less than 30 seconds. Convenient access makes it easy to clean fouling from the cell walls. Personnel determine the need to clean the walls (rather than the optics) visually based on specific operating conditions, with cleaning required four times a year on average.
The dual-channel AZhT-94/62 turbidity meter is unique worldwide.
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