We offer a variety of fixed and portable gas detectors specifically designed to identify Ammonia (NH3)

For numerous industries, it's crucial to quickly and precisely detect hazardous Ammonia gases to prevent them from reaching harmful or toxic concentrations.

Explore our selection of Ammonia detection devices and related instruments, engineered to monitor an extensive array of Ammonia. Our product lineup includes:

Ammonia NH3 Fixed Wall Gas Detector | 4-20mA RS485 Non HA

£525.00 GBP
£525.00 GBP
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Ammonia gas is lighter than air and tends to rise, but in humid conditions or high moisture environments, liquefied anhydrous ammonia forms vapors that are heavier than air. This increases the risk of exposure to personnel, especially in large NH3 refrigeration systems.

Composed of nitrogen and hydrogen, ammonia (NH3) is a colorless gas with a strong, distinctive odor. As one of the most widely produced industrial chemicals, ammonia is highly toxic and flammable, with a lower explosive limit (LEL) of 16%.

Exposure Limits

STEL: 35ppm

(Short Term exposure Limit – 15mins)

TWA: 25ppm

(Time Weighted Average – 8 hrs)

Alarm Recommendations

First Alarm

25ppm

Second Alarm

35ppm

Third Alarm

Optional

Ammonia gas is less dense than air, causing it to ascend in normal conditions. However, when moisture is present, such as in areas with high humidity, liquefied anhydrous ammonia releases vapors that are denser than air. This increases the potential hazard of ammonia exposure from leaks, especially in large-scale NH3 refrigeration systems.

Chemically, ammonia consists of nitrogen and hydrogen atoms. It is a colourless gas with a distinct, sharp odour. As one of the most widely manufactured chemicals in industry, ammonia (NH3) is highly toxic and poses a fire hazard with a lower explosive limit (LEL) of 16%.

In nature, ammonia plays a crucial role in the nitrogen cycle, where it is generated in soil through bacterial activity. It also occurs naturally during the breakdown of organic materials, such as decaying plants, animals, and animal waste.

The physical characteristics of ammonia are as follows:

  • At standard room temperature, ammonia is a colourless gas with a sharp, intensely irritating smell.
  • In its pure form, called anhydrous ammonia, it absorbs moisture easily and is corrosive.
  • Ammonia gas compresses readily, turning into a transparent liquid under pressure.
  • It is typically transported in steel containers as a pressurized liquid.
  • These containers can potentially explode if exposed to extreme heat.

USE

  • Refrigeration industry (as a refrigerant)
  • To manufacture electronic or photovoltaic components
  • To manufacture fertiliser
  • Petrol and fuels
  • To treat metals
  • Organic synthesis
  • Textile fibre industry
  • Cleaning solutions
  • Paper industry

Flammability: The likelihood of ammonia igniting is relatively low. While it has a defined flammability limit and can potentially explode, it does not ignite easily. Ammonia needs to be in contact with surfaces or materials heated to at least 651°C to catch fire. However, the risk of fire can be heightened in the presence of oil or other combustible substances, which lower the auto-ignition temperature. Additionally, ammonia can ignite when it comes into contact with strong oxidizing agents.

Explosiveness: For ammonia to explode, it must be present in a concentration of at least 15% (150,000 ppm), along with an ignition source. It can also detonate when in contact with strong oxidizers.

  • Pre & Post After Sales Support

    We offer after sales support on all our products including

    • Installation
    • Configuration
    • Maintenance
    • Repair
    • Calibration

  • Calibration Services

    We have full capability for Gas Detector, Temperature, Pressure Calibrations in our Lab or on-site. With traceable N.I.S.T standards on all our equipment.

    Calibration Services 

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