Evikon E2630 Series User manual

E2630 series gas detectors are compact and easy-to-use instruments.
The devices utilise 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
e uipped with visual and acoustic alarm.
The version of your detector is marked on the package.
Safety requirements
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.
Operating and storage conditions
•The device should be used in explosion-safe (non ATEX -rated) indoor areas at
the atmospheric pressure ±10% and RH 15...95 % without condensation
•Avoid exposure to highly corrosive gases (H2S, SO2, HCl, Cl2 etc), or high
concentrations of basic gases, such as ammonia.
•Avoid mechanical shock or strong vibrations.
•Avoid sources of electromagnetic interference
•See Specifications table for more details
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.
Mounting dimensions
145
115
90 65
~140
55
130
E2630
30 M 61
M25
Installation
There are no precise rules or standards to follow when installing the gas detectors. The
following points must be taken into account:
application (air uality control or leakage detection),
properties of the space under investigation (room geometry, direction and velocity of
air flows etc),
detected gas (relative density to air, whether the gas is flammable, or toxiс, or oxygen
displacing),
safety: strong vibrations, mechanical shock, and the sources of strong
electromagnetic interference should be avoided,
the device should be accessible for maintenance and repair.
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). Recommended sensor position is vertical, pointing downwards. See
Installation guidelines section for more information.
The device is mounted on the wall using four round holes or two key slots (see
dimensional drawing in the previous section).
Connections
1. Unscrew four lid screws and detach the the front from the device.
2. Attach the device to the wall. (This step may be done after the step 3, 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 AC/DC source if you are using
detector version -24 or to 230 VAC 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 wire, loosen the screw, insert the wire
end into terminal hole and tighten the screw.
To use relay outputs, connect the chosen actuators to the relay terminals RE1
and/or RE2.
NB! Actuator short-circuits shall be avoided, to protect the instrument relays use
external fuses or safety switches.
4. 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.
5 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, deplacement etc.
Operating. Alarm release mode
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 automatic or manual
mode of alarm release. Touch the device with the magnet key on the spot shown at
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, double
acoustic and light signal follows.
If 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 80% of the LOW alarm setpoint.
If 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 80% of the LOW alarm setpoint. Upon contact the key should activate the
reed switch located left of the sensor inside the device.
Magnet
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 pro e handling
The E2630 series detectors are available with remote probe (see drawing below for
dimensions). The remote probe is connected to the main unit with shielded cable.
Default connection cable length is 3 m. The sensor probes of all types are e uipped 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.
NB! Never stab or press the filter near its centre where the sensor is located since
this may damage the sensor.
The recommended orientation of sensor probe is vertical with the sensor tip pointing
downwards. This prevents possible accumulation of condensed water on the sensor
protection filter.
35
36
77
Ø35...36 Ø50
120°
Ø65 80
327
Ø34 max
Hole

Ammonia
Colourless gas, highly soluble in water, with characteristic pungent smell.
Ammonia is a large-scale product of chemical industry widely used as a raw
material for production of fertilizers and explosives, as a refgigerant, as a cleaning
and antimicrobal agent.
Ammonia is also produced naturally from decomposition of organic matter,
including plants and animals.
Chemical formula NH
Molar weight 17
Relative gas density (to air) 0,59
Conversion 1 ppm = 0.70 mg/m
Boiling point - . 4 °C
Low explosive limit (LEL), % vol in air 15
Upper explosive limit (UEL), % vol in air 28
Odour Characteristic pungent smell
Odour detection threshold 0.04 ppm ...57 ppm according to
different studies
Hazards Ammonia is an irritant to skin, eyes
and respiratory tract. Ammonia
inhalation causes breathing
difficulties (wheezing). At high
concentrations may lead to
pulmonary edema.
Exposure limits (Directive
2000/ 9/EC)
TWA 14 mg/m /20 ppm
STEL 6 mg/m /50 ppm
Conversion of ppm to mg/m is calculated for 25°C and 1 atm.
Installation guidelines
(See Installation and connections section for general information.)
Ammonia is lighter than air, so the sensor should be placed higher than the poternial
leakage or formation source.
NB Do not use detector with electrochemical sensor in areas with constatnly high
ammonia contents, such as poultry and cattle sheds.
Calibration
E26 0-NH detectors have been calibrated by Manufacturer with standard gas
mixtures before delivery. Provided that the sensor is used under moderate
conditions, field recalibration is recommended every 6 months for electrochemical
sensor and every 12 months for MOS sensor. Please contact your dealer for more
information.
Maintenance
Do not perform any maintenance operation with the power on.
Clean the device with soft damp cloth. Do not use any abrasive cleaning agents. Do
not immerse the device into water or any cleaning media.
Delivery set
–Detector E26 0
– Mounting accessories:
4 screws with plastic dowels
fixing clamp for remote probe version
E26 0-NH _UM_EN Rev 16.05.2019
Specifications
Sensor type metal oxide semiconductor electrochemical cell
Sampling method diffusion
Detection range
0...100 ppm
0... 00 ppm
(up to 1000 ppm)
0...100 ppm
0...500 ppm
(up to 1000 ppm)
Default alarm setpoints
(release-LOW-HIGH)
18 - 25 - 5 ppm
25 - 5 - 150 ppm
18 - 25 - 5 ppm
25 - 5 - 00 ppm
Resolution / digital unit 1 ppm
Signal update every 1 second
Sensor lifetime > 5 years >2 years
Calibration interval 12 months 6 months
Operating conditions
15...95 % RH, 85...110 kPa
explosion-safe (non ATEX -rated) indoor areas without
aggressive gasesin the air
-40...+70 °C;
no volatile silicon
compounds in the air,
normal ambient oxygen level
-10...+50 °C
Warm-up time up to 5 minutes,
depending on unpowered period and atmosphere
Power supply 11... 0 VDC /V 24 VAC
with integrated mains supply module 90...265 VAC
Power consumption < 2 VA
Digital interface UART
Relay outputs 2 × SPDT, 250 VAC / 0 VDC, 5 A max
Alarm signalling Buzzer 2 kHz, 85 dB; red LED
LEDs green/red (operation/fault), red (gas alarm)
Enclosure grey ABS, wall mount, protection class IP65
Dimensions H90 × W145 × D55 mm
(overall dimensions H140 × W145 × D55 mm)
Electromagnetic
compatibility
according to 2014/ 0/EU, 2014/ 5/EU and EN61 21-1
standard requirements
Warranty
This product is warranted to be free from defects in material and workmanship for a
period of one year from the date of original sale. During this warranty period
Manufacturer will, at its option, either repair or replace product that proves to be
defective. This warranty is void if the product has been operated in conditions
outside ranges specified by Manufacturer or damaged by customer error or
negligence or if there has been an unauthorized modification.
Evikon MCI OÜ Teaduspargi 7, Tartu [e-mail]
Tel + 72 7 6 10 50411 Estonia www.evikon.eu
Ammonia Detector
E263 -NH3
User manual