Evikon E2632 Manuel utilisateur

Two Channel Gas Detector

E2632

User Manual

E2632 Rev 17.05.2021
Table of contents
Gases 3
Speciﬁcations 4
Product description 5
Safety requirements 5
Operating conditions 5
Installation guidelines 6
Mounting dimensions 7
Connections 8
Operation 9
Sensor probe handling 10
The electrochemical gas sensor replacement procedures 10
Maintenance 11
Calibration 11
Delivery set 11
Order code for E2632 options 11
Warranty 12
Manufacturer contacts 12
2

E2632 Rev 17.05.2021

Gases

Gas

Detection range

Sensor type

Sensor lifetime

Response

time T90

Calibration

interval

Carbon

monoxide

0-200 ppm

0-1000 ppm

Electrochemical

>10 years

< 30 sec

12 months

Hydrogen sulﬁde

0-50 ppm

Electrochemical

>2 years

< 25 sec

6 months

Nitrogen dioxide

0-10 ppm

Electrochemical

>2 years

< 60 sec

6 months

Chlorine

0-5 ppm

Electrochemical

>2 years

< 120 sec

6 months

Formaldehyde

(CH2O)

0-5 ppm

Electrochemical

>2 years

< 120 sec

6 months

Sulfur dioxide

(SO2)

0-10 ppm

0-100 ppm

Electrochemical

>2 years

< 30 sec

6 months

Ammonia (NH3)

0-100 ppm

0-500 ppm

Electrochemical

>2 years

< 50 sec

6 months

Methane (CH4)

0-100% LEL

Metal-oxide

semiconductor

>5 years

≈ 60 sec

12 months

Butane/Propane

(LPG)

0-100% LEL

Metal-oxide

semiconductor

>5 years

≈ 60 sec

12 months

Hydrogen (H2)

0-100% LEL

Metal-oxide

semiconductor

>5 years

≈ 60 sec

12 months

Solvent vapors

(VOC)

0-500 ppm

0-100% LEL

Metal-oxide

semiconductor

>5 years

< 120 sec

12 months

Refrigerants

(HFC)

0-500 ppm

Metal-oxide

semiconductor

>5 years

< 120 sec

12 months

NOTE! The instrument can support each combination of the gases above.

NOTE! Ask about combinations for combustible gases.

E2632 Rev 17.05.2021

Speciﬁcations

Sensor type

Depends on detected gases

Available are:

Metal oxide sensors,

Electrochemical sensors

Sampling method

Diffusion

Signal update

Every 1 second

Power supply

11...30 VDC,

24 VAC or 90...265 VAC as options

Power consumption

< 2 VA

Digital interface

UART

Relay outputs

2 relays with switch-over contact per sensor,

2 × SPDT, max 5 A, 30 VDC / 250 VAC

Alarm signaling

Blinking LEDs, buzzers 85 dB

LEDs

Green/red (operation/fault), red (gas alarm)

Enclosure

Grey ABS, wall mount, protection class IP65

Dimensions

H123 × W201 × D55 mm

Output cable

Max Ø8 mm

CE marking

According to 2014/30/EU and 2014/35/EU, EN 50491-4-1:2012

EN 61000-6-3:2020, 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

15...95 %RH,

Atmospheric pressure ±10%

Non-Atex rated areas

The temperature depends on the sensor.

E2632 Rev 17.05.2021

Product description

E2632 series gas detectors are compact and easy-to-use instruments. The devices utilize

novel fully calibrated and temperature compensated gas sensors with excellent

repeatability, stability, and long lifetime.

Two relays RE1 and RE2 with switching contacts can be used to control alarm sirens,

ventilation fans, shut-off valves, or other actuators for each sensor. The devices are

equipped with a visual and acoustic alarm for each sensor. 24 VAC or 230 VAC power

supply options are available.

The version of your detector is marked on the package.

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 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.

When stored without powering in normal air for a long period, or in an environment

contaminated with organic vapors or volatile oils, the sensor may show a reversible drift in

resistance according to the environment.

E2632 Rev 17.05.2021

Installation guidelines

There are no precise rules or standards to follow when installing gas detectors. The

following points must be taken into account:

●Application (air quality control or leakage detection.)

●Properties of the space under investigation (room geometry, direction, and

velocity of airﬂows, etc.),

●Detected gas (relative density to air, temperature, whether the gas is ﬂammable,

or toxiс, or oxygen displacing),

●The device should be accessible for maintenance and repair.

The aforementioned conditions above will affect the coverage area of the device. However,

the coverage area for a detector is usually between 2.5 to 5 meters radius.

For early leakage detection install the sensor 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 detector should be

distributed evenly in the room.

Do not locate the detector close to ventilation openings and strong air currents. Avoid the

areas without air circulation (corners, niches) as well.

For personal safety control, the detectors are installed in the breathing zone (at the height

of the head of people or animals). The recommended sensor position is vertical, pointing

downwards.

E2632 Rev 17.05.2021

Mounting dimensions

E2632 Rev 17.05.2021

Connections

1. Unscrew four lid screws and detach the lid from the device;

2. Attach the device to the wall using provided screws through the side mounting holes or

key slots (This step may be done before step 1, consider your convenience).

3. Use two M16 cable glands to let in the cables of the power supply and of the external

devices to each sensor.

Connect the power terminals N and L to the 24 V AC/DC source if you are using detector

version -24 or to 230 V AC mains if you are using detector version -230 (see diagram

below).

Terminals

RE1 NO

Relay 1, normally open terminal

RE1 COM

Relay 1, common terminal

RE1 NC

Relay 1, normally closed terminal

RE2 NO

Relay 2, normally open terminal

RE2 COM

Relay 2, common terminal

RE2 NC

Relay 2, normally closed terminal

90…265 VAC Phase (optional 24 VAC / VDC)

90…265 VAC Neutral (optional 24 VAC / VDC)

E2632 Rev 17.05.2021

The terminals on the E2632 series devices are suitable for a wide range of wires with

cross-section 0,2...1,5 mm2. We recommend to strip the wire end by 5...6 mm and use the

wire end sleeves. To connect the wire, loosen the screw, insert the wire end into the

terminal hole and tighten the screw.

To use relay outputs, connect the chosen actuators to the relay terminals RE1 and/or RE2

for each sensor.

NOTE! Actuator short-circuits shall be avoided, to protect the instrument relays, use

external fuses or safety switches.

3. Place the lid back and ﬁx it with the screws. Make certain that the cable glands are

properly tightened to ensure the conformity to IP65 protection class.

4. Turn on the power. It may take up to ﬁve minutes after switching on for the sensor to

stabilize.

For stable operating, it is recommended to keep the detector powered constantly, except

for periods of maintenance and calibration, replacement, etc.

Operation

During the ﬁrst ca. 60 seconds after powering on E2632 performs a warming-up and

self-diagnostic routine, indicated by the ﬂashing of each LED. Each sensor has two LEDs.

The upper dual-color LED remains continuously green in normal operation and blinks red in

case of device or sensor fault. The warm-up time depends on the sensor types, unpowered

period, and atmosphere.

During the ﬁrst 30 seconds after powering on you may select the automatic or manual

mode of alarm release. Touch the device with the magnet key on the bottom of the device.

A short touch (< 2 s) enables the automatic mode, a touch of 2...10 s — manual mode. The

activation of the automatic mode is followed by a single LED blinking and acoustic signal.

If manual mode is activated, the double acoustic and light signal follows.

E2632 Rev 17.05.2021

If the gas concentration for each sensor exceeds the LOW alarm setpoint, the bottom red

LED of that sensor starts ﬂashing at a rate of 1 Hz, and the relay RE1 switches over. The

ﬁrst alarm stops automatically if the gas concentration drops below 80% of the LOW alarm

setpoint.

If the gas level exceeds the HIGH alarm setpoint, the bottom red LED of that sensor starts

ﬂashing and the buzzer starts beeping at a rate of 2 Hz, and also the relay RE2 switches

over. Depending on the selected release mode, the HIGH alarm stops automatically or can

be stopped with a short touch of the magnet key, if the gas level has dropped below 80% of

the LOW alarm setpoint. Upon contact, the key should activate the reed switch located left

of the sensor inside the device.

Apart from the warming-up period, a 2....10 s touch causes the device to reset and perform

the self-diagnostic routine for testing purposes. To check the visual and acoustic alarm,

touch the device with the magnet key for more than 10 s. This will launch blinking and

beeping (stops as soon as the key is withdrawn).

Sensor probe handling

The sensor probes of all types are equipped with a hydrophobic microporous PTFE ﬁlter to

protect the sensor from dust, dirt, and water drops. The ﬁlter may be replaced if it gets

strongly contaminated. To replace the PTFE ﬁlter, unscrew the M25 nut and remove the old

ﬁlter. Place a new ﬁlter into the nut and tighten it again.

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.

The recommended orientation of the sensor probes is vertical with the sensor tips pointing

downwards. This prevents the possible accumulation of condensed water on the sensor

protection ﬁlter.

The electrochemical gas sensor replacement procedures

1. Un-power detector;

2. Unscrew sensor head cap;

3. Carefully take out the sensor cell;

4. Disconnect the ﬁrst wire from the old sensor and connect to the same pin on the

new sensor;

5. Disconnect the second wire from the old sensor and connect to the second pin on

the new sensor;

6. Insert the new sensor into the sensor head and screw back the sensor head cap.

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