Evikon E2630-HFC User manual

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
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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
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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.
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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
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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.
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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.
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Mounting dimensions
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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.
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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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E2630-HFC Rev 23.03.2021
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 sensor head cap and
remove the old filter. Place a new filter into the cap 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 and/or break the sensor.
The recommended orientation of the sensor probe is vertical with the sensor tip pointing
downwards. This prevents the possible accumulation of condensed water on the sensor
protection filter.
NOTE! Metal oxide semiconductor sensors are not replaceable!
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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
E2630-HFC detectors have been calibrated by the Manufacturer with standard gas
mixtures before delivery. Provided that the sensor is used under moderate conditions, field
recalibration is recommended every 12 months Please contact your dealer for more
information.
Delivery set
●Refrigerant Detector E2630-HFC
●Mounting accessories:
○4 screws and 4 plastic dowel plugs
Order code for E2630-HFC options
E2630 options
Order code
Integrated 90...265 V mains power supply module
E2630-HFC-230
Integrated 24 VAC power supply module
E2630-HFC-24VAC
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Warranty
This product is warranted to be free from defects in material and workmanship for a period
of one year from the date of the original sale. During this warranty period, the Manufacturer
will, at its option, either repair or replace a product that proves to be defective. This
warranty is void if the product has been operated in conditions outside ranges specified by
the Manufacturer or damaged by customer error or negligence or if there has been an
unauthorized modification.
Manufacturer contacts
Evikon MCI OÜ
Teaduspargi 7/9, Tartu
50411 Estonia
[email protected]
www.evikon.eu
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