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Dust Monitor & SPM Monitor


Vasthi Instruments are global leaders in manufacturing of Back Scattered Dust Monitor,gas analyzers, gas detectors,Stack Opacity Meter,dew point analyzer,particulate monitors, stack gas analyzers and have been supplying instruments to customers worldwide, Our multidisciplinary team of scientists, physicians, engineers, and regulatory consultants with decades of global experience brings you the quintessential mechanism that provides complete safety accuracy and durability. Vasthi Engineers was formed with visionary thinking and innovative ideas resulting in innovative products and solutions. We enhance our product quality by the continuous process of research and development. We have WIDE range of models to suite various site conditions and processes.

Portable-Dew-Point-meter

Back Scattered Dust Monitor

Back Scattered Dust Monitor

Vasthi Instruments Back Scattered Dust Monitor for Ideal monitoring opacity and smoke levels in the exhaust gas of industrial combustion or air filtration processes. The instrument’s Back scatter technology means that the ‘telescopic’ detector field of view is controlled to eliminate stray scattering from the far inside stack wall. The back scattered dust monitor is conveniently mounted on one side of the stack and usually requires no light absorber or beam dump on the opposite side of the stack. The optical parts include laser source,power control,photoelectric sensor and scattered light receiving.The 650nm laser beam sent by the laser at a tiny angle into the emission source,where it acts with the dust particles to produce scattered light.The back scattered light will be processed in the sensor into electrical signals.The circuit part will realize the photoelectric conversion,laser beam modulation,signal amplification,demodulation,light source power control, V/I conversion and HMI display.Calibrator is used to generate stable optical signals to zeroing and span calibration of the device.The Back Scattered Dust Monitor design has been implementing the thinking of “no tool” on-side installation , to minimize the complexity of field installation. […]

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Portable-Dew-Point-meter

Stack Opacity Meter

Stack Opacity Meter

Vasthi Instruents Opacity Monitoring System has been designed for measuring the pollutants with in the Stack Emission.
Vasthi has mainly designed the Stack Opacity Meter for Cement Plants, Steel Plants etc.Download Catalog Download Specification Sheet […]

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