4
Marking according to ATEX:
II 2 G Ex d IIB+H2 T6 Gb Tamb:-40°C-+60°C
II
- class environment - non-mining environment
2 G
- explosive atmospheres - zone 1
Ex d
- type of protection - flameproof enclosure „d“
IIB+H2
- gas group
T6
- temperature gas group
Gb
- type of protection according to EPL
Tamb
- operating temperature range
Dimensions without bushings: 150x170x65 mm (WxHxD)
Dimensions of box:
185x165x80 mm (WxHxD)
Weight:
2,1 kg
Capacity of the internal memory of history: 44 days at 60s recording interval
60 s (adjustable range 1-255 s)
5% of range
Interval record storage memory:
Dead band
:
Consumption/input at 24V (output RS485)
Warm-Up time
DEGA NSx-EL III
25 mA/0,6 W
DEGA NSx-EL II LCD RE max. 180 s
DEGA NSx-CL III
70 mA/1,7 W
DEGA NSx-CL II LCD RE max. 30 s
DEGA NSx-IL III
50 mA/1,2 W
DEGA NSx-IL II LCD RE max. 15 s
DEGA NSx-SL III
DEGA NSx-PL III PID
70 mA/1,7 W
154 mA/3,4 W
DEGA NSx-SL II LCD RE
DEGA NSx-PL III PID
max. 180 s
max. 15 s
Consumption/input at 24V (output 4-20mA)
Time to stabilize (>5day without power)
DEGA NSx-EL III
45 mA/1,1 W
DEGA NSx-EL II LCD RE Up to several hours -
based on sensor type
DEGA NSx-CL III
90 mA/2,2 W
DEGA NSx-CL II LCD RE max. 1 h
DEGA NSx-IL III
70 mA/1,7 W
DEGA NSx-IL II LCD RE max. 30 min
DEGA NSx-SL III
DEGA NSx-PL III PID
90 mA/2,2 W
154 mA/3,7 W
DEGA NSx-SL II LCD RE
DEGA NSx-PL III PID
max. 5 h
max. 30 min
Response time (T90)
Sensor lifetime in a clean environment
DEGA NSx-EL II LCD RE max. 180 s -
based on sensor type
DEGA NSx-EL II LCD RE 2 years
DEGA NSx-CL II LCD RE max. 15 s
DEGA NSx-CL II LCD RE 2 years
DEGA NSx-IL II LCD RE max. 15 s
DEGA NSx-IL II LCD RE 5 + years
DEGA NSx-SL II LCD RE
DEGA NSx-PL III PID
max. 30 s
max. 15 s
DEGA NSx-SL II LCD RE
DEGA NSx-PL III PID
2 years
5000 hours
Operational conditions
Ambient temperature:
-40°C to +60 °C
Relative humidity:
0-95 % RH
Air pressure:
86 - 108 kPa
Flow of ambient air:
max. 2 m/s - flow directly to the sensor in not allowed
Protection level with a cover:
IP 64, with a DEGA WATER CAP IP66 cover
Location:
BE3N2 - explosive atmoshpheres - zone 1 (2 G)
Terminology
The marking system for sensors DEGA NSx-yL III:
Gas sensor DEGA NSx-yL III
Series of detectors in potentially explosive atmospheres
Type of detected gas
Sensor type with linear output
Third generation product with new DEGA design
DEGA NSx-EL III with an electrochemical sensor
They operate on the principle of change of electrical parameters on the electrodes stored in electrolyte, due to
oxidation/reduction reactions of the detected gas on it's surface. These sensors have good selectivity and the ability to detect
very low concentrations of toxic gases.
