E2658-LEL
Rev 11.03.2022
Specifications
Sampling method
Diffusion
Sensor type
Metal oxide semiconductor
Catalytic (pellistor)
Typical detection range
0...100% LEL
0...100% LEL
Resolution / digital unit
0.1% LEL
1% LEL
Response time T90
ca. 60 s
≤10 s
Sensor lifetime
> 5 years
> 5 years
Calibration interval
12 months
6 months
In dusty or harsh environments more frequent calibration may be
required
Operating temperature
-40...+70 °C
-40 to +70°C
Signal update
Every 1 second
Power supply options
11...30 VDC (default),
24 VAC or 90...265 VAC as options
Power consumption
< 2 VA
Analog outputs
2 × 4-20 mA / 0-10 V, user settable
Outputs assignment
OUT1 2 gas; OUT2 2 gas
Output scale width
> 10 × resolution
Recommended: 20-100% of the detection range
Load resistance
R
L
< (Us - 2 V) / 22 mA for 4-20 mA
R
L
> 250 kOhm for 0-10 V mode
Digital interface
RS485, Modbus RTU protocol;
No galvanic isolation
Cable connections
Screwless spring-loaded terminals
Enclosure
Grey die-cast aluminium, wall mount, IP66
Cable gland
M25 for SWA cable or steel conduit Ø10...17 mm
Dimensions
H80 × W125 × D57 / H80 × W175 × D80 mm
Protection
Flameproof, ATEX: II 2 GD, Ex d IIC T4 Gb
ATEX Approvals
Enclosure:
ATEX / IECEx
DEMKO 13 ATEX 1327771U
II 2 G Ex e IIC Gb
II 2 D Ex tb IIIC Db IP66
Glands
:
ATEX / IECEx
EESF 19 ATEX 023X
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