Evikon E2615 Series Manuale utente

Hydrogen Sulﬁde Transmitter

E2615-H2S

User Manual

E2615-H2S Rev 24.08.2022

Table of contents

Hydrogen Sulﬁde 4

Speciﬁcations 5

Product description 6

Safety requirements 6

Operating conditions 6

Installation guidelines 6

Mounting dimensions 8

Electrical connections 9

Operation 10

Maintenance 10

Calibration 10

Delivery set 11

Order code for E2615-H2S options 11

Warranty 12

Manufacturer contacts 12

E2615-H2S Rev 24.08.2022

Hydrogen Sulﬁde

Colorless toxic, corrosive and ﬂammable gas with a smell of rotten eggs. Occurs in natural

gas, volcanic gases, petroleum, and some sources of well water. It results from the

anaerobic decay of sulfur-containing proteins, e.g. in sewers.

Synonyms: Hydrosulfuric acid, Sewer gas, Sulfuretted hydrogen.

Chemical formula

H2S

Molar weight

Conversion

1 ppm = 1.40 mg/m3

Relative gas density (to air)

1.17

Boiling point

−60 °C

Low explosive limit (LEL), % vol.

in air

4.0

Upper explosive limit (UEL), %

vol. in air

44.0

Odor

The characteristic smell of rotten eggs. Above 30 ppm, the odor is

described as sweet or sickeningly sweet.

Odor threshold

0.01-1.5 ppm

Note: Sense of smell becomes rapidly fatigued and can NOT be

relied upon to warn of the continuous presence of H2S.

Hazards

Highly ﬂammable, explosive gas.

Broad-spectrum poison, mostly affecting the nervous system. At

low concentrations causes eye irritation, a sore throat and cough,

nausea, shortness of breath, and pulmonary edema. Long-term,

low-level exposure results in fatigue, loss of appetite, headache,

poor memory, irritability, and dizziness. Exposure to high levels

can induce immediate collapse, with loss of breathing and a high

probability of death.

Exposure limits

(Commission

Directive

2009/161/EU)

TWA

7 mg/mm3/ 5 ppm

STEL

14 mg/mm3/ 10 ppm

IDLH

(NIOSH)

140 mg/mm3/ 100 ppm

Conversion of ppm to mg/m3is calculated for 25°C and 1 atm.

E2615-H2S Rev 24.08.2022

Speciﬁcations

Sensor type

Electrochemical cell

Sampling method

Diffusion

Detection range

0-50 ppm

Max. overload

500 ppm

Response time T90

< 30 s

Sensor lifetime

≥ 2 years

Calibration interval

Maintenance free

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

-20...+50°C, 15-90% RH,

pressure 0,9...1,1 atm

Explosion safe indoor areas

Avoid strong mechanical shock, vibrations, or EMI

E2615-H2S 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-H2S 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.),

●Hydrogen sulﬁde is slightly heavier than air and spreads evenly in the room. The

recommended location is close to the potential leakage source

●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-H2S 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.

E2615-H2S Rev 24.08.2022

Electrical connections

The terminals on the E2615 series devices are suitable for a wide range of wires with a

cross-section of 0.2...1.5 mm2. We recommend to strip the wire end by 8...9 mm and use

wire end sleeves.

To connect the wire, loosen the screw, insert the wire end into the terminal hole and tighten

the screw.

The analog output can be changed between 4-20 mA and 0-10 V type using jumper on the

transmitter’s PCB.

E2615-H2S Rev 24.08.2022

Operation

Turn on the power. The instrument warm-up time takes about 1 minute after switching on

and the ﬁnal sensor stabilization time to maximum accuracy takes about 30 minutes.

Make sure that the transmitter is properly mounted and the external devices connected.

Place the lid back and ﬁx it with the screws. The device is ready to use.

Maintenance

Do not perform any maintenance operation with the power on.

Clean the device with a soft damp cloth. Do not use any abrasive cleaning agents. Do not

immerse the device in water or any cleaning media.

Calibration

E2615-H2S transmitters have been calibrated by the Manufacturer with standard gas

mixtures before delivery. Please contact your dealer for more information.

E2615-H2S Rev 24.08.2022

Delivery set

●Transmitter E2615

●Mounting accessories:

○2 screws with plastic dowels

Order code for E2615-H2S options

E2615 options

Order code

IP20 enclosure

E2615-H2S-IP20

IP65 enclosure

E2615-H2S-IP65

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