Evikon PluraSens E2638R-LEL User Manual

Combustible gases
E2638R-LEL detector-transmitter is sensitive to light hydrocarbon gases (acetylene,
methane, propane, butane) and hydrogen.
See Annex 2 for more detailed information concerning the prorerties of the detected
gases.
NOTE Transmitter with catalytic type sensor is nit available for acetylene detection.
Installation guidelines
(See Installation and connections section for general information.)
For gases lighter than air install the sensor higher than potential leakage/generation
source or near the ceiling. Combustible gases lighter than air are hydrogen (0,07 of air
density), methane (0,55 of air density) and acetylene (0.90 of air density).
Propane and butane are heavier than air (1.55 and 2.0 of air density respectively) and
tend to sink. It is recommended to place the sensor lower than potential leakage or
generation sourse.
Calibration
E2638R-LEL devices have been calibrated by Manufacturer with standard gas
mixtures before delivery. Provided that the sensor is used under moderate
conditions, the recommended recalibration interval for metal oxide sensor is 12
months. Catalytic sensors are more sensitive to the environment and require field
recalibration every 3...6 months. 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-transmitter E2638R
– Mounting accessories:
4 screws with plastic dowels
fixing clamp for remote probe version
E2638R-LEL_UM_EN
Specifications
Detected gases Acetylene, Butane, Hydrogen, Methane, Propane
Sampling method diffusion
Sensor type metal oxide semiconductor
Typical detection range 0...100% LEL
Resolution / digital unit 0.1% LEL
Response time T90 ca. 60 s
Sensor lifetime > 5 years
Calibration interval 12 months
-30...+70 °C
<95 %RH, atmospheric pressure ±10%;
explosion safe (non ATEX rated) spaces
Operating conditions
Normal ambient oxygen level
Avoid strong mechanical shock, vibrations or EMI
Avoid exposure to corrosive gases or silicon containing
products
Signal update every 1 second
Power supply options 11...30 VDC, 24 VAC or 90...265 VAC
Power consumption < 2 VA
Analog outputs 2 × 4-20 mA / 0-10 V, user settable
Relay otputs 2 × SPST, max 5 A, 30 VDC / 250 VAC
RE1 (LOW): set 20% LEL; release 16% LEL
Default alarm setpoints
RE2 (HIGH): set 50% LEL; release 40% LEL
Alarm signal (option) Red LED, 85 dB buzzer
R < (Us - 2 V) / 22 mA for 4-20 mA
L
Load resistance
R > 250 kOhm for 0-10 V mode:
L
RS485, Modbus RTU protocol
Digital interface
no galvanic isolation, common-mode voltage -7...+12 V
Enclosure grey ABS, wall mount, protection class IP65
H90 × W145 × D55 mm
Dimensions
(overall dimensions H140 × W145 × D55 mm)
CE marking according to 2014/30/EU and EN61326-1 requirements
Outputs assignment
OUT1 2 gas; OUT2 2 gas
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 unauthorised modification.
Evikon MCI OÜ Teaduspargi 7, Tartu
Tel. +372 733 6310 50411 Estonia
Rev 16.10.2018
catalytic (pellistor)
0...100% LEL
1% LEL
8 s
> 2 years
3...6 months
-20 to +60°C
Combustible Gases
Detector-Transmitter
E2638R-LEL
User Manual
info@evikon.eu
www.evikon.eu
®
PluraSens