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

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

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

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

Molar weight

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

Odor

Odorless

Hazards

Flammable forms explosive mixtures with air.

Asphyxiant.

Exposure limits

not established

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

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

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

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

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)

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.

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.

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.

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.

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