Evikon E2630-HFC Manuale utente

Refrigerant Detector

E2630-HFC

User Manual

E2630-HFC Rev 23.03.2021
Table of contents
Hydroﬂuorocarbons 3
Speciﬁcations 5
Product description 6
Safety requirements 6
Operating conditions 6
Installation guidelines 7
Mounting dimensions 8
Connections 9
Operation 10
Sensor probe handling 11
Maintenance 12
Calibration 12
Delivery set 12
Order code for E2630-HFC options 12
Warranty 13
Manufacturer contacts 13
2

E2630-HFC Rev 23.03.2021

Hydroﬂuorocarbons

HFCs are relatively non-ﬂammable, chemically stable, and nonreactive.

Classiﬁcation of halocarbon refrigerants

Group

Refrigerants

Chloroﬂuorocarbons (CFC)

R11, R12

Hydrochloroﬂuorocarbons

(HCFC)

R22, R141b, R142b

Hydroﬂuorocarbons (HFC)

R32, R125, R134a, R143a

Hydroﬂuorooleﬁns (HFO)

R 1234ez, R1234yf, R1336mzz

Chlorine containing refrigerants (CFC and HCFC) are considered to be damaging to the ozone layer

and contributing to the greenhouse effect. According to the Montreal Protocol, chlorine-containing

halocarbons should be completely dismissed and their manufacturing closed down.

Hydroﬂuorocarbons (HFC) contain no chlorine and are safer for the environment. Now

hydroﬂuorocarbons are the most commonly used halocarbon refrigerants.

Hydroﬂuorooleﬁns (HFO) is the last generation of refrigerants, more environmentally friendly than

HFCs, but moderately ﬂammable (A2L Class).

Properties of selected halocarbons

Name

Type

Components

Components weight %

Boiling point

R12

CFC

CCl2F2

100

−29.8 °C

R22

CFC

CHClF2

100

−40.8 °C

R125

HFC

CHF2CF3

100

−48.5 °C

R134a

HCFC

CF3CH2F

100

−26.2°C

R143a

HCFC

CF3CH3

100

-47.5 °C

R32

HFC

CH2F2

100

−52 °C

R1234yf

HFO

2,3,3,3-Tetraﬂuoropropene

100

-30 °C

R1234ze

HFO

1,3,3,3-Tetraﬂuoropropene

100

-19 °C

R404a

mixture

R125, R143a, R134a

44:52:4

−47.8 °C

R407c

mixture

R32, R125, R134a

23:25:52

−43 °C

R410a

mixture

R32, R125

50:50

−48.5 °C

Overexposure may cause dizziness and loss of concentration. At higher concentrations, CNS

depression and cardiac arrhythmia may result from exposure. Vapors displace air and can cause

E2630-HFC Rev 23.03.2021

asphyxiation in conﬁned spaces. At higher temperatures (>250°C) decomposition products may

include hydroﬂuoric acid (HF) and carbonyl halides.

An escape of refrigerant through a leak may damage the refrigerating facilities.

E2630-HFC Rev 23.03.2021

Speciﬁcations

Sensor type

Metal oxide semiconductor

Sampling method

Diffusion

Typical detection range

0-500 ppm

Alarm setpoints

(release-LOW-HIGH)

70-100-300 ppm

Response time T90

<120 s

Signal update

Every 1 second

Sensor lifetime

> 5 years

Calibration interval

12 months

Power supply

24 VAC/DC or 90...265 VAC

Power consumption

< 2 VA

Digital interface

UART

Relay outputs

2 × SPDT, max 5 A, 30 VDC / 250 VAC

Alarm signaling

Buzzer 2 kHz, 85 dB; red LED

LEDs

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

Enclosure

Grey ABS, wall mount, protection class IP65

Dimensions

H140 × W145 × D55 mm

CE marking

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

EN61000-6-3:2020, 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

-30...+60 °C; <95% RH non-condensing, 0,9...1,1 atm

Explosion- safe indoor areas,

Normal ambient oxygen level

E2630-HFC Rev 23.03.2021

Product description

E2630 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. The devices are equipped with a visual

and acoustic alarm.

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 indoor 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.

E2630-HFC Rev 23.03.2021

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.),

●Halocarbons are heavier than air and tend to sink. The sensor should be placed

near the ﬂoor.

●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.

E2630-HFC Rev 23.03.2021

Mounting dimensions

E2630-HFC Rev 23.03.2021

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.

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

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

below).

The terminals on the E2630 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. The outer diameter of the cable must not exceed 8

mm.

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

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, calibration, replacement, etc.

E2630-HFC Rev 23.03.2021

Operation

During the ﬁrst ca. 60 seconds after powering on E2630 performs a warming-up and

self-diagnostic routine, indicated by the ﬂashing of each LED. 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 type, 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 spot shown in the

drawing below.

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.

If the gas concentration exceeds the LOW alarm setpoint, the bottom red LED 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 70% of the LOW alarm setpoint.

If the gas level exceeds the HIGH alarm setpoint, the bottom red LED 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 70% 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).

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