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Facts you should know about Gas Detection using catalytic principle
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Posted on: 01:27 PM - 24 Apr 22

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technosavvy has added a new Products: Duct Mounting Kit for Gas Detectors
 

In-Situ mounting of any make Gas Detectors in AC Duct, Gas Process Pipe line with our Duct...

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Posted on: 01:14 PM - 16 Jul 21

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technosavvy has updated a Products: Sampling System for a Toxic Gas Detection System
 

There are two prominent sampling methods used in gas detection: Sample draw and passive...

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Posted on: 08:08 PM - 02 Jun 19

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technosavvy has updated a Products: Closed Loop Sampler
 

Closed Loop Sampler is designed for filling sample bottle for Lab testing purpose.

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Posted on: 08:05 PM - 02 Jun 19

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technosavvy has added a new Products: Closed Loop Sampler
 

Closed Loop Sampler is designed for filling sample bottle for Lab testing purpose.

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Posted on: 06:05 PM - 16 Sep 17

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technosavvy has added a new Products: Power Saver
 

• Single / Three phase power Saver • Rated Voltage 220-230V / 440V •...

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Posted on: 06:00 PM - 16 Sep 17

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technosavvy has updated a Products: Gas Sampling & Conditioning Accessories
 

Comprehensive range of Aspirators, Coalescing & Particulate Filters, Scrubber, Heat-less...

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Posted on: 05:53 PM - 16 Sep 17

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technosavvy has updated a Products: Gas Sampling & Conditioning Accessories
 

Comprehensive range of Aspirators, Coalescing & Particulate Filters, Scrubber, Heat-less...

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Posted on: 05:52 PM - 16 Sep 17

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technosavvy has added a new Products: Gas Sampling & Conditioning Accessories
 

Comprehensive range of Aspirators, Coalescing & Particulate Filters, Scrubber, Heat-less...

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Posted on: 08:29 PM - 08 Sep 17

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Updated on: 10:51 AM - 27 Jan 17       Posted on: 10:51 AM - 27 Jan 17

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technosavvy says "Facts you should know about Gas Detection using catalytic principle"
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Vikas Dattatraya Sawant multitude of complaints about gas detection instruments, much of these issues are caused by high humidity and the inability for the sensors to provide accurate readings. Selection of gas detection should be made by someone who is qualified and experienced. Much of the time the procurement of equipment is decided on price. SENSOR TECHNOLOGY Catalytic Combustible Gas Sensors .These sensors look for explosive atmospheres. They detect combustible gases by causing an actual combustion of gases within the sensor chamber. Catalytic sensors offer good linearity, and can react to most combustible gases. However, as resistance change to %LEL is quite small, they work better in concentrations between 1,000 and 50,000 PPM. They do not measure trace amounts of gas (under 200 PPM) and therefore are of no use in determining toxic levels. The disadvantages are They must have a minimum of 14% oxygen content in the air to work accurately The sensor can be damaged by silicones, dust,oils lead or other poisons The readings can be affected by humidity and water vapour condensation They respond poorly to low energy hydrocarbons such as oil vapours, kerosene, diesel fuel and commercial jet fuels They tend to loose their linearity after a year or so They are not recommended for use in an acetylene atmosphere The flame arrestor will prevent ignition of most gases except acetylene outside the sensor. It is extremely important to check the approvals for which type of hazardous locations the detector can function in. CALIBRATION Gas sensors start losing accuracy soon after they are manufactured as a normal result