Gas Detection

  • New range of ionic ammonia sensors

New range of ionic ammonia sensors

Jun 18 2020 Read 500 Times

Ammonia gas is classed as a toxic gas under international regulations and therefore you will require an ammonia gas detection system to monitor the atmosphere to comply in most regions of the world. However, one of the main downfalls of current ammonia gas sensors is that they don’t really fit the bill, especially for refrigeration plants.

Existing electrochemical sensors are consumed by ammonia as they are monitoring. This means if you have a background level in a plant room, then your sensor life will be drastically reduced. This also means, your sensor could become fully consumed and useless should a gas leak occur. In either case this leads to a detector which no longer correctly reads ammonia, a potentially fatal problem as you no longer have a working ammonia gas detection system.

Current electrochemical sensors are generally only specified to -20 Deg C. Current electrochemical sensors require water vapour to operate. This means, long term performance in an environment around -20 ℃ will not be good for electrochemical sensor. At -20 degrees centigrade there is little water vapour in the air for the ammonia gas detector to operate.

A current alternative is to use optical sensors for ammonia gas detection based on infrared technology. The problem here is again operation at low temperatures. Temperature compensation, condensation and icing problems all make refrigeration applications a challenge for ammonia infrared sensors.

By adopting advanced materials and careful optimisation of the design, IGD have successfully developed and released a series of long-life ammonia sensors based on ionic technology.

This technology is not consumptive, thus allowing the sensors to operate effectively where ammonia is either continuously present at low levels or during an accidental release.

This technology does not use water in its electrolyte allowing operation down as low as -40 Deg C providing accurate and reliable ammonia gas detection, especially for harsh environments such as industrial refrigeration applications.

Ranges are available up to 5000 PPM. This new product family finally resolves the deficiencies of short life spans and low maximum range of the existing consumable ammonia sensors in the market. IGD provide these sensors in several formats including: ATEX rated devices, safe area  (non-ATEX) and sampling detectors. A range of accessories are available to suit your application including, splash and dust guards, probes and adaptors. IGD’s gas detection systems are tested to BS EN 60079-29-1 and are compliant with BS EN 378 and BS EN 45544

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment

Digital Edition

International Environmental Technology December 2020 - Including the STA Guide 2021

December 2020

In This Edition Business News - Dust travelled thousands of miles to enrich Hawaiian soils - Protecting Saskatchewan lakes from contamination - Network of organisations committed to workpla...

View all digital editions


EUEC 2021

Feb 08 2021 Virtual & live stream

Work clothes. Safety and labour protection

Feb 23 2021 Minsk, Belarus

SIAF Guangzhou

Mar 03 2021 Guanghzou, China


Mar 08 2021 Virtual Event

View all events