Evikon PluraSens E2648-CO2 User manual

PluraSens®
Carbon Dioxide Detector-Transmitter
E2648-CO2
User Manual

E2648-CO2 Rev 10.05.2023
Table of contents
Carbon Dioxide 3
Specifications 4
Product description 6
Safety requirements 6
Operating conditions 7
Installation guidelines 7
Mounting dimensions 8
Mounting dimensions (50KN sensor) 9
Sensor probe handling 10
Electrical connections 12
Correct and incorrect cabling for 24 VAC 14
Operation 15
Maintenance 15
Calibration 15
Delivery set 16
Order code for E2648-CO2 options 16
Configuring 17
Return to default settings 17
Modbus RTU Communication 18
RS485 communication interface 18
Communication parameters 18
Modbus holding registers 18
Warranty 23
Manufacturer contacts 23
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E2648-CO2 Rev 10.05.2023
Carbon Dioxide
Carbon dioxide is a colorless, odorless, non-toxic, and non-flammable gas that is present in
the Earth's atmosphere at a low concentration.
Chemical formula
CO2
Molar weight
44
Relative gas density (to air)
1.52
Conversion
1 ppm = 1.80 mg/m3
Boiling point
Sublimes
Flammability
Nonflammable
Odor
Odorless
Hazards
Dust of various metals (Mg, Zr, Ti, Al, Cr, Mn)is ignitable
and explosive when suspended in carbon dioxide.
In concentrations up to 1% (10000 ppm), it will make
some people feel drowsy and give the lungs a stuffy
feeling. Concentrations of 7% to 10% (70000 to 100000
ppm) may cause suffocation, even in the presence of
sufficient oxygen, manifesting as dizziness, headache,
visual and hearing dysfunction, and unconsciousness
within a few minutes to an hour.
Exposure
limits
(Directive
2006/15/EC)
TWA
9000 mg/m3/5000 ppm
STEL
Not specified
Conversion of ppm to mg/m3is calculated for 25°C and 1 atm.
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E2648-CO2 Rev 10.05.2023
Specifications
Sensor type
Photoacoustic
Dual beam NDIR (optional)
Sampling method
Diffusion
Ordering code
10K
40K
50KN
Detection range
0...10000 ppm
0...40 000 ppm
0...5 %vol.
Resolution / digital unit
1 ppm
10 ppm
0.2% FS
Response time
T60 ≤ 60s
T50 ≤ 20 s; T90 ≤ 60 s
Sensor lifetime
Ca. 10 years
Ca. 5 years
Calibration interval
No field recalibration if ABC
algorithm is enabled
12 months
Signal update
Every 5 seconds
Every 1 second
Sensor type
Photoacoustic
Dual beam NDIR (optional)
Digital interface
RS485, Modbus RTU protocol
No galvanic isolation
Load resistance
RL< (Us - 2 V) / 22 mA for 4-20 mA
RL> 250 kOhm for 0-10 V mode
Power supply
12...36 VDC (default),
24 VAC or 230 VAC as options
Power consumption
< 2 VA
Analog outputs
2 × 4-20 mA / 0-10 V, user settable
Outputs assignment
OUT1 gas; OUT2 gas
Outputs scale width
> 10 × resolution
Recommended: 20-100% of the detection range
Cable connections
Screwless spring-loaded terminals
Enclosure
Die-cast aluminum, wall mount, protection class IP66
Dimensions
H120 × W125 × D57 mm
Operating conditions
-40 to +60 °C, 0...100% RH
Explosion safe areas; pressure 0,9...1,1 atm;
Non-aggressive atmosphere without condensation
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
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E2648-CO2 Rev 10.05.2023
Relay option
Output relays
2 × SPST relays (closing contact),
250 VAC / 30 VDC, 5 A max
Default alarm
set-points
Determined by the user within 5-95% of the detection range
Other options
*Ambient pressure
compensation
In the range 0,5...2 bar of absolute pressure
Remote probe
Protection IP65, default cable length 3.0 m;
max height 80 mm, max diameter 65 mm
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E2648-CO2 Rev 10.05.2023
Product description
E2648 series heavy duty detectors-transmitters belong to the PluraSens® family of
multifunctional measurement instruments. The instruments utilize gas sensors of various
types with excellent repeatability, stability, and long lifetime. Due to its IP66 enclosure of
die-cast aluminum, the device may be used under harsh conditions.
The E2648 series provides two independent analog outputs OUT1 and OUT2,
user-selectable to 4-20 mA or 0-10 V, proportional to gas concentrations. RS485 Modbus
RTU digital communication interface allows easy instrument configuration and integration
into various automation systems.
The following features are available as an option:
●Two relays RE1 and RE2 with closing contacts. Relay outputs can be used to
switch alarm sirens, ventilation fans, shut-off valves, or other actuators,
●24 VAC or 230 VAC as options for power supply module,
●Remote probe.
The version of your detector 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.
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E2648-CO2 Rev 10.05.2023
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.
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 leakage control.)
●Properties of the space under investigation (room geometry, direction, and
velocity of airflows, etc.),
●Since CO2is heavier than air, it is recommended to locate the sensor not higher
than the potential leakage. For air quality control, place the sensor in the breathing
zone.
●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 transmitter 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.
Do not locate the detector close to ventilation openings and strong air currents. Avoid the
areas without air circulation (corners, niches) as well.
For general area monitoring without definite leakage sources, the detectors should be
distributed evenly in the room.
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.
Unscrew four lid screws and detach the lid from the transmitter. Attach the device to a wall
with screws passing through mounting holes. The device is fixed on the wall using two
holes located outside the sealed area of the device.
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E2648-CO2 Rev 10.05.2023
Mounting dimensions
Front view
Bottom view
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E2648-CO2 Rev 10.05.2023
Mounting dimensions (50KN sensor)
Front view
Bottom view
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E2648-CO2 Rev 10.05.2023
Sensor probe handling
The E2648 series devices are available with a remote probe. The remote probe is
connected to the main unit with a shielded cable. The default remote probe cable length is
3 m.
A) Wall mount remote probe with fixing clamp (default version),
B) Remote probe with rubber flange and three self-tapping screws (on request)
A) Wall mount remote probe with fixing clamp (default version),
B) Remote probe with rubber flange and three self-tapping screws (on request)
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