Importer and Manufacturer of


VOC Monitoring System In Andhra Pradesh

A VOC sensor informed ventilation system can optimize indoor air quality while minimizing energy use. There are over 5,000 VOCs that are expelled by breathing, cooking, bodily functions, perfumes, deodorants, paint, cleaners, cigarettes, office supplies, etc. VOC sensor monitors these gases and provides a CO2 equivalent ppm (parts per million) output which is then input to a DCV system.

The VOC sensor eliminates the need for frequent manual calibration by providing a relative measurement and using an Automatic Baseline Correction (ABC) logic algorithm. With ABC self-correction, the sensor constantly adjusts the 450 ppm baseline (outside air) to eliminate any sensor drift. The logic drives the sensor to quickly reduce the baseline when a time of low measurement is sensed.

The VOC sensors directly measures ambient concentrations of a broad range of reducing gases associated with bad air quality. Examples are alcohols, aldehydes, ketones, organic acids, amines, organic chloramines, aliphatic and aromatic hyrocarbons. These gases all burn and cause the VOC sensor ppm output to increase. Opposite examples are sulphuric acid, nitric acid and ozone. These three are oxidizing gases and will not cause the VOC sensor ppm output to increase.



Ozone is measured in the air using low cost gas meters and ozone detectors. Typically, low cost detectors employ electrochemical sensors. These are galvanic cells that output voltages proportional to the ozone concentration. These cells are useful in the ppm ozone concentration range.

More expensive ozone detectors employ ultraviolet (UV) absorption technology. Ozone molecules in the air absorb UV radiation. When the change in light absorption is measured by photodetectors, the detector outputs a proportional electronic signal. UV absorption is the best way to detect low levels of ozone in the parts per billion (ppb) range.

Ozone detectors, meters, and analyzers employ sensor elements to detect O3 gas molecules. These sensors come in three varieties: (1) electrochemical cells, (2) semiconducting metal oxide sensors, and (3) ultraviolet absorption sensors.


How are ammonia leaks detected early to prevent accidents?

Electrochemical sensor technology is used for 0-250PPM levels for early detection. Catalytic sensors are recommended for concentrations above 5000 PPM (.5%) to detect very large leaks or spills.

Compressor Rooms are the most likely areas to leak ammonia and require at least two 0-250 PPM and one 0-5% fixed ammonia gas detectors connected to an alarm controller. One 0-250 PPM detector should be located under the normal ventilation fan. Others should be spaced in the breathing zone every 2000 square feet, about 5 feet above the floor. The 0-5% detector should be located 5 feet above the floor and below the emergency ventilation fan. It should activate the EV fan (1% alarm trip) and also shut down compressors, pumps, and disconnect power sources (2% alarm trip).

Refrigerated Rooms should have 0-100PPM detectors and 25PPM alarm trips to ensure personnel protection and early leak detection. The alarm controller should trigger audio-visual indicators at monitored locations. Locate sensors in the breathing zone about 5 feet above the floor. Install enough detectors to be within 30 feet of potential leak sources.



In environmental chemistry, the chemical oxygen demand (COD/BOD) test is commonly used to indirectly measure the amount of organic compounds in water. L800 is a dedicated on-line analyzer for determining true COD/BOD values in water matrices, in compliance with standard methods. L800 uses UV absorbance/fluorescence spectroscopy full spectrum (180-720nm) technology, provides selective, accurate and real-time measurement of COD/BOD.

The system provided with complete Engineered Panel with all electronics for monitoring parameters including Standard Parameters: COD, BOD, TSS, pH,

Optional Parameters: DO (Dissolved Oxygen), NH4NO3, TDS, Turbidity, Residual chlorine, Hardness, Salinity, Orthophophate, Total phosphate, Temperature, Conductivity.

It is using an innovation technology it checks and detects undesirable substances present in sewage treatment plants or effluent treatment plant


  High resolution and sensitivity optical sensor.

  Powerful mathematical treatment FTLS.

  On board memory for storage data (16 GB).

  Intuitive friendly interface on TFT color touch screen (glass to glass).

  IP65 Stainless Steel enclosure, ATEX in option.

  10 year lifetime UV lamp.

  Once a year calibration.

OCEMS with Optical Probe :

Introduction :

Online effluent system based on optical probe is use to measure the water parameter like BOD, COD & TSS and the measuring principal employ in this instrument is Dual Wavelength UV absorption method

Product Advantage:

  Automatic brush cleaning assembly

  Zero drift is small,

  good repeatability ,

  Low power consumption

  Long service life with strong anti-interference ability.

  Automatic calibration

  Automatic cleaning with H2SO4 / dry compressed air

  Titanium or stainless steel assembly instead of put the probes directly in the sampling tank for the safety of the sensors

  By using titanium or stainless steel assembly the life period of probe sensors will extend as compared to directly put the probe sensors into the sampling tank




Water / Liquid Analyzer Applications

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Waste water treatment

Waste water treatment plant NO3-, NO2-, NH4+, COD, pH, TSS, PO43- Colour

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Swimming pool

Pool water O3, CL2, CLO2

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Surface water

River, Lake, Rainfall water NO3-, PO43-, Hydrocarbon, COD, Salinity, DO, pH, NH4+

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Sea water

Desalination plant, Harbour S2-, Hydrocarbon, NH4+, NO2-

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Drinking water

Potabilization plant NO3-, pH, Colour, Chlorine, Turbidity

Air / Gas Analyzer Applications

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Industry, Power Plant, Waste incinerator SO2, NH3, NO, NO2, CL2

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Ambient air

City, Industry H2S, SO2, NOX, O3

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Biogas plant H2S, NH3, Mercaptan

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Engine gas

Motor bench Embedded system on vehicle NH3, NOX, SO2, H2S