There are various ways to detect ammonia sensor leakage in industrial and commercial settings. Some methods, PTFE tape, pair sensing, and ultrasonic sensors. Using the right sensor is essential in detecting even small amounts of ammonia. But before you install a sensor in your facility, here are some things you need to know.
Ammonia leakage can occur
Ammonia leakage can occur in ventilation lines, especially R717 ventilation lines, where the safety relief valve is overloaded. While the leak is a major safety concern, there are several steps to reduce the risks. One of the first steps is to monitor Ammonia concentrations in the processing area. A recommended alarm is between 25 and 35 ppm.
Ammonia is a combustible and toxic gas, so it is crucial to have adequate ventilation and safety procedures. Before using the gas, make sure the lab ventilation system is working properly. Also, make sure there are eyewash stations and safety showers nearby. Lastly, laboratory personnel should wear proper clothing and sturdy shoes.
Ammonia leaks are hazardous to employees and the public, and they can damage property. Aside from being harmful to workers, ammonia leaks can also cause major disruptions to operations. They can cause temporary blindness, skin irritation, and even death. The gas is particularly dangerous when contaminated with lubricating oil.
Pair sensing
Ammonia detection can be a complicated task in industrial facilities, especially those with a large array of equipment. The gas can easily form clouds and travel to lower levels, making it difficult for human beings to smell it. However, there are several types of sensors available that can detect ammonia vapor.
Pair sensing works by combining two different gases to detect ammonia. The target gas reacts with the electrode catalyst, which consists of an electrolyte. These two gases react with each other to create a measurable concentration of ammonia. These sensors typically last between two to three years, but the life expectancy can be shorter in high-ammonia concentrations and extreme environments. As a result, it is crucial to perform regular calibrations to maintain an accurate reading.
Pair sensing devices use a highly sensitive microphone and an optical filter that only passes light of the same wavelength as the gas in question. This allows the monitor to detect small pressure pulses, which indicate the presence of the gas. The stronger the pulse, the higher the concentration of the gas.
Ultrasonic sensor
An ultrasonic leak detector is a simple yet effective instrument that detects leaks of gas in confined spaces. The device works by detecting ultrasonic signals in the air and raises an alarm as soon as the detected gas is present. This type of leak detector is a great option for industrial applications where leaks are likely to occur. Its sensitivity level is average and its flexible probe makes it suitable for use in tight spaces.
The sensors can be used in many applications, including industrial plants, refineries, fumigation facilities, paper pulp mills, aircraft, shipbuilding facilities, hazmat operations, and waste-water treatment facilities. Indoor air quality testing is another application where such sensors are useful.
Conclusion
In industrial settings, it is important to monitor the levels of ammonia gas to protect the people and equipment. The presence of ammonia is dangerous for workers, surrounding communities, and the environment. Using a point-of-entry sensor to detect ammonia leakage can help companies avoid costly mistakes.
