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Terminology
The marking system for sensors
DEGA
NBx-yL III LCD RE
Gas sensor
DEGA NBx-EL III LCD RE with an electrochemical sensor
They operate on the principle of change of electrical parameters on the electrodes stored in electrolyte, due to oxidation or
reduction reactions of the detected gas on its surface. These sensors have good selectivity and the ability to detect very low
concentrations of toxic gases.
DEGA NBx-CL III LCD RE with a catalytic sensor (Pelistor)
They operate on the principle of catalytic combustion - gas concentration is measured based on the amount of heat released
in a controlled combustion reaction. The reaction is supported by a suitable temperature and the presence of a catalyst. These
sensors can be used to detect a broad range of flammable gases. The sensors are characterized by fast response, long lifetime
and high stability. A minimum of 10 % of Oxygen in the air is required for their proper function.
DEGA NBx-IL III LCD RE with an infrared sensor (NDIR)
Top quality scanning method. They operate on the principle of infrared spectroscopy. The sensors have excellent selectivity in
organic matter, do not require any oxygen in the atmosphere and are resistant to catalyst poisons (sulfur and silicon
compounds) which cause a change of sensitivity of catalytic sensors. The sensors are also characterized by high stability and a
long lifetime.
DEGA NBx-SL III LCD RE with a semiconductor sensor
The cheapest scanning method. The sensors operate on the principle of changes in electrical conductivity of semiconductors
by changing the concentration of the detected gas. Their advantage is a long lifetime in a clean environment and a wide range
of different types of gases and vapors. Their disadvantage is their low selectivity - the sensor largely responds to other gases,
for which it is not calibrated.
DEGA NBx-PL III LCD RE PID with a photoionization sensor
Sensitive scanning method for detection of a wide range of VOC - volatile organic compounds. The sensor does not selectively
detect all VOCs in the air at concentrations in ppm.
Product description
1
Bushings
Magnetic control
5
„ENTER/EXIT"
DEGA NBx-yL III LCD RE:
Series of detectors for non-explosive atmospheres
Type of gas detected
Sensor typ with linear output
Third generation product with DEGA design
Allen screws 3mm
2
6
Sensor module
Magnetic control
3
„BACK"
PCB with
7
electronics
4
Magnetic control
4
„FRONT"
8
PCB with electronics
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