Evikon E2615-LEL Manuale utente
Combustible Gas Transmitter
E2615-LEL
User Manual
E2615-LEL Rev 24.08.2022
Table of contents
Butane 3
Hydrogen 4
Methane 5
Propane 6
Specifications 7
Product description 8
Safety requirements 8
Operating conditions 8
Installation guidelines 8
Mounting dimensions 10
Electrical connections 11
Operation 11
Maintenance 11
Calibration 12
Delivery set 12
Order code for E2615-LEL options 12
Warranty 12
Manufacturer contacts 13
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E2615-LEL Rev 24.08.2022
Butane
A colorless flammable gas that is heavier than air. The term “butane” is used for any of two
structural isomers (n-butane or iso-butane, with unbranched and branched-chain
respectively) or for their mixture. Occurs in light petroleum fractions.
Butane is used mainly as a fuel and as a feedstock in organic synthesis. It is applied also
as a propellant in aerosol sprays and may be used as an ozone-friendly refrigerant.
Mixtures of butane with propane and other hydrocarbons are referred to as LPG (liquefied
petroleum gas).
Chemical formula
n-butane
CH3CH2CH2CH3
iso-butane
CH3CH(CH3)CH3
Molar weight
58
Relative gas density (to air)
2.0
Conversion
1 ppm = 2.38 mg/m3
Boiling point
-0.56 °C
−11.7 °C
Low explosive limit (LEL), % vol. in air
1.4* (1.6**)
1.5* (1.8**)
Upper explosive limit (UEL), % vol. in air
8.4
9.6
Odor
Gasoline-like odor
Hazards
Highly flammable.
Inhalation of butane can cause euphoria, drowsiness,
narcosis, asphyxia, cardiac arrhythmia, fluctuations in
blood pressure, and temporary memory loss, when
abused directly from a highly pressurized container, and
can result in death from asphyxiation and ventricular
fibrillation.
Exposure limits
(NIOSH)
TWA
1900 mg/m3/800 ppm
Not established
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E2615-LEL Rev 24.08.2022
Hydrogen
A colorless, odorless, flammable gas that is much lighter than air. Mixtures with air are
explosive. Results from the interaction of acids, bases, and water with active metals and
from the electrolysis of aqueous solutions. In industrial production, the main source of
hydrogen is hydrocarbons.
Chemical formula
H2
Molar weight
2
Relative gas density (to air)
0.07
Conversion
1 ppm = 0.0818 mg/m3
Boiling point
−252.88 °C
Low explosive limit (LEL), % vol. in air
4.0
Upper explosive limit (UEL), % vol. in air
75
Odor
Odorless
Hazards
Flammable forms explosive mixtures with air.
Asphyxiant.
Exposure limits
not established
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E2615-LEL Rev 24.08.2022
Methane
A colorless flammable gas, the main component of natural gas, marsh gases. Methane
results from bacterial decomposition of plant and animal matter (landfill gas).
Methane is widely used as a fuel and chemical feedstock.
Synonyms: Marsh Gas, Natural Gas, Carbon tetrahydride, Hydrogen carbide.
Chemical formula
CH4
Molar weight
16
Relative gas density (to air)
0.55
Conversion
1 ppm = 0.65 mg/m3
Boiling point
−161.49 °C
Low explosive limit (LEL), % vol. in air
4.4* (5.0**)
Upper explosive limit (UEL), % vol. in air
15
Odor
Odorless when pure. Methane used in the kitchens
contains an odorant
Hazards
Highly flammable, mixtures with air are explosive.
Asphyxiant.
Exposure limits
not established
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E2615-LEL Rev 24.08.2022
Propane
A colorless flammable gas that is heavier than air. It occurs in light petroleum fractions.
Propane is used mainly as a fuel and as a feedstock in organic synthesis. It is applied also
as a propellant in aerosol sprays and may be used as an ozone-friendly refrigerant.
Mixtures of propane with butane and other hydrocarbons are referred to as LPG (liquefied
petroleum gas).
Chemical formula
C3H8
Molar weight
44
Relative gas density (to air)
1.55
Conversion
1 ppm =1.80 mg/m3
Boiling point
−42 °C
Low explosive limit (LEL), % vol. in air
1.7* (2.1**)
Upper explosive limit (UEL), % vol. in air
9.5
Odor
Odorless when pure. Commercially available propane for
fuel purposes may contain odorant (“gas smell”).
Hazards
Highly flammable, mixtures with air are explosive.
Asphyxiant. May cause dizziness, confusion, excitation
when inhaled.
Exposure limits
(NIOSH)
TWA
1800 mg/m3/1000 ppm
IDLH
2100 ppm [10%LEL]
Conversion of ppm to mg/m3is calculated for 25°C and 1 atm.
* according to new EU standards ('stirred' concentration of gas)
** according to US standard (‘still gas’ method)
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E2615-LEL Rev 24.08.2022
Specifications
Sensor type
Catalytic Bead (Pellistor)
Sampling method
Diffusion
Detection range
0-100% LEL
Response time T90
≤10s
Sensor lifetime
>5 years
Calibration interval
6 months
Power supply
24 VDC ± 20%
Power consumption
< 1 W
Analog outputs
4-20 mA / 0-10 V, user settable
Outdoor enclosure
Grey ABS plastic,
wall mount, protection class IP65
Indoor enclosure
White, ivory or black ABS plastic,
wall mount, protection class IP20
Dimensions
IP65 H70 × W80 × D36 mm
IP20 H71 × W71 × D27 mm
CE marking
According to 2014/30/EU and 2014/35/EU , EN 50491-4-1:2012
EN61000-6-3:2007, EN 61326-1:2013(EMC, emissions)
EN 61000-6-1:2019, EN 61000-6-2:2019(EMC, Immunity)
EN 60079-29-1:2016, EN 60079-29-2:2015 and EN 60079-29-3:2014
Operating conditions
-40…+70°C, <95%RH,
pressure 0,9...1,1 atm
Explosion safe indoor areas
Avoid strong mechanical shock, vibrations, or EMI
Avoid exposure to corrosive gases
NOTE! The sensor may exhibit sensitivity to most combustible gases.
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E2615-LEL Rev 24.08.2022
Product description
E2615 series gas transmitters are easy-to-install and easy-to-use instruments. The devices
utilize novel fully calibrated gas sensors with excellent repeatability, stability, and long
lifetime.
E2615 series provide analog output with user-selectable signal type, 4-20 mA or 0-10 V.
The version of your transmitter is marked on the package. If the symbol
⚠
is marked on
the equipment, consult the documentation for further information.
Safety requirements
Misuse will impair the protection of the product. Always adhere to the safety provisions
applicable in the country of use.
Do not perform any maintenance operation with the power on. Do not let water or foreign
objects inside the device.
Removal of the PCB from the enclosure voids the warranty. Do not touch the electronic
components directly, as they are sensitive to static electricity.
Connection diagrams can be found in the electrical connections section. The device might
not perform correctly or be damaged if the wrong power supply is connected.
External circuits connected to the equipment should have sufficient insulation rating
according to the environmental conditions and equipment power.
A disconnecting device that is marked as such and easily accessible should be included in
the installation of this product.
Operating conditions
The device should be used both in a non-hazardous area and in a basic electromagnetic
environment, where the latter is defined in EN 61326-1. Avoid strong mechanical shock and
vibrations. Avoid corrosive atmosphere and areas highly contaminated with dust, oil mist,
etc. Keep the instrument away from direct sunlight. A sudden temperature or humidity
change might affect the sensitivity of the sensor.
8
E2615-LEL Rev 24.08.2022
Installation guidelines
Before proceeding with the installation it is mandatory to read the Safety requirements
section and make sure to comply with all listed instructions. Installation standards EN
60079-29-2 and EN 45544-4 are also recommended for further instructions and related
information about the installation. During the installation of the transmitter the following
points must be considered:
●Application (the instrument is intended for air quality or leakage control.)
●Properties of the space under investigation (room geometry, direction, and
velocity of airflows, etc.),
●Methane and hydrogen are lighter than air and tend to rise. It is recommended to
place the transmitter higher than potential leakage/generation source or near the
ceiling.
●Propane and butane are heavier than air and tend to sink. It is recommended to
place the sensor lower than potential leakage/generation source or near the floor.
●The device should be accessible for maintenance/calibration.
The aforementioned conditions above will affect the coverage area of the device. However,
the coverage area for a transmitter is usually between 2.5 to 5 meters radius.
For early leakage detection, install the transmitter as close as possible to the potential
leakage sources (flanges, valves, pressure reducers, pumps, etc.), taking into consideration
other points listed above.
For general area monitoring without definite leakage sources, the transmitters should be
distributed evenly in the room.
For personal safety control, the transmitters are installed in the breathing zone (at the
height of the head of people or animals). The recommended sensor position is vertical,
pointing downwards.
For installing the IP65 device, attach the device to the wall using provided screws through
the key slots on both sides of the device.For installing the IP20 device, detach the base of
the enclosure by gently pulling along four guiding pins and attach the base to the wall with
two screws.
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E2615-LEL Rev 24.08.2022
Mounting dimensions
The IP65 instrument sensor is equipped with a hydrophobic microporous PTFE filter to
protect the sensor from dust, dirt, and water drops.
NOTE! Never stab or press the filter near its center where the sensor is located since this
may damage the sensor. Do not remove the filter as it may cause the device to show
incorrect values.
10
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