Catalytic Bead DrägerSensor
Sensorer til faste gassdetektorer
- Detects flammable gases and vapours
- Long-term stability due to double-detector compensation method
At the heart of gas detection system
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Explore all substances
Highlights
The DrägerSensor ... DQ detects flammable gases and vapours such as hydrogen. Due to the double-detector compensation method, the catalytic sensor is particularly long-term stable. The wire mesh at the gas inlet serves as a flame barrier. So it ensures explosion protection at the same time short response time.
The catalytic bead principle
The DrägerSensors ... DQ (double detector with cross section opening) are based on the catalytic bead detection principle. The most important component are the hot, catalytically active pearls on platinum coils (pellistors). These pellistors burn the … More information gas and additional heat of reaction is created. The temperature increases depending on the gas concentration and thus also changes the electrical resistance of the platinum coils. This change is passed on as a measuring signal. There are six different catalytic bead sensors from Dräger, which are used in six different transmitters and measuring heads.
DrägerSensor PR M DQ
PR stands for poison resistant. The pellistors of the DrägerSensor PR M DQ have a longer service life under the influence of poisonous substances. The sensor has a metric thread (M) on the back.
DrägerSensor PR NPT DQ
The DrägerSensor PR NPT DQ also withstands poisoning substances for a long time. This sensor is equipped with a NPT thread on the back.
DrägerSensor PR NPT DQ S
The DrägerSensor PR NPT DQ S has a housing made of higher quality stainless steel and is therefore more resistant to corrosion in aggressive and corrosive atmospheres.
DrägerSensor HT M DQ
The DrägerSensor HT M DQ can be used at ambient temperatures of up to 150 °C and is also approved accordingly (HT = high temperature). This sensor also has a metric thread.
DrägerSensor LC M
LC stands for >low concentration<. The DrägerSensor LC M detects very low gas concentrations in the measuring range from 0 to 10% LEL. This is possible by a special arrangement of the PR pellistors, as well as an amplifier electronics. The sensor has … More information a metric thread.
DrägerSensor LC NPT
The LC NPT sensor also detects gas concentrations in the measuring range of 0 to 10% LEL. It is equipped with a NPT thread.
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Dräger Norge AS
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Mandag - fredag: kl. 08:00-16:00
Innspurten 9, 0663 Oslo