Evikon E2608-CH4 User Manual

Methane
Colourless flammable gas, widely used as a fuel.
Synonyms: Marsh Gas, Natural Gas, Carbon tetrahydride, Hydrogen carbide
Chemical formula CH
4
Molar weight 16
Relative gas density (to air) 0.55
Conversion 1 ppm = 0.65 mg/m
Boiling point −161.49 °C
Low explosive limit (LEL), % vol in air 5.0
Upper explosive limit (UEL), % vol in air 15
Odour Odourless when pure. Methane
used in the kitchens contains
odorant
Hazards Highly flammable, mixtures with
air are explosive.
Asphyxiant.
Exposure limits not established
Conversion of ppm to mg/m 3 is calculated for 25°C and 1 atm.

Installation guidelines

(See Installation and connections section for general information.)
Methane is lighter than air (0,55 of air density) and tends to rise. The sensor should be
placed higher, than potentioal leakage (e.g., near the ceiling).

Calibration

E2608-CH4 detectors have been calibrated by Manufacturer with standard gas
mixtures before delivery. Provided that the sensor is used under moderate
conditions, field recalibration is recommended once a year. Please contact your
dealer for more information.

Maintenance

Do not perform any maintenance operation with the power on.
Clean the device with soft damp cloth. Do not use any abrasive cleaning agents. Do
not immerse the device into water or any cleaning media.

Delivery set

–Detector-transmitter E2608 (wall mount or duct mount version)
– Mounting accessories:
4 cross-shaped mounting lug with screws and 4 screws with plastic dowels for wall
mount version
rubber flange for duct mount version
fixing clamp for remote probe versions
E2608-CH4_UM_EN

Specifications

Sampling method
Sensor type
Typical detection range
Resolution / digital unit
3
Response time T90
Sensor lifetime
Calibration interval
Operating Conditions
Signal update
Power supply options
Power consumption
Load resistance
Digital interface
Analog outputs
Outputs assignment
Output scale width
Relay otputs
Default larm setpoints
Cable connections
Enclosure
Dimensions
CE marking
Warranty
This product is warranted to be free from defects in material and workmanship for a
period of one year from the date of original sale. During this warranty period
Manufacturer will, at its option, either repair or replace product that proves to be
defective. This warranty is void if the product has been operated in conditions outside
ranges specified by Manufacturer or damaged by customer error or negligence or if
there has been an unauthorised modification.
Evikon MCI OÜ
Tel. +372 733 6310
Rev 11.07.2019
diffusion
metal oxide semiconductor catalytic (pellistor)
0...100% LEL 0...100% LEL
0.1% LEL 1% LEL
ca. 60 s 8 s
> 5 years > 2 years
12 months 3...6 months
-20 to +60°C,
-30...+70 °C
<95 %RH, atmospheric pressure ±10%;
explosion safe (non ATEX rated) spaces
Normal ambient oxygen level
Avoid strong mechanical shock, vibrations or EMI
Avoid exposure to corrosive gases or silicone
containing products
every 1 second
11...30 VDC, 24 VAC
or 90...265 VAC (with mains power unit)
< 2 VA
R < (Us - 2 V) / 22 mA for 4-20 mA
L
R > 250 kOhm for 0-10 V mode
L
RS485, Modbus RTU protocol
no galvanic isolation
2 × 4-20 mA / 0-10 V, user settable
OUT1 2 gas; OUT2 2 gas
> 10 × resolution
Recommended: 20-100% of the detection range
2 × SPST, max 5 A, 30 VDC / 250 VAC
RE1 (LOW): set 20% LEL; release 16% LEL
RE2 (HIGH): set 50% LEL; release 40% LEL
screwless spring loaded terminals
grey ABS, wall mount, protection class IP65
H85 × W82 × D55 mm
according to 2014/30/EU and EN61326-1 requirements
Teaduspargi 7, Tartu info@evikon.eu
50411 Estonia www.evikon.eu
Methane Detector-Transmitter
E2608-CH4
User Manual
®
PluraSens