Volatile Organic Compounds
Highly volatile organic liquids. The definitions of VOC may vary depending on
application field and country. E2658-VOC is intended to detect vapours of solvents
(acetone, benzene, ethanol, ethyl acetate, toluene, xylenes etc.
See Annex 2 for more information on the properties of various gases.
Installation guidelines
(See Installation and connections section for general information.)
Solvent vapours are heavier than air and tend to sink. Consider, if the vapours are
heated or not, if the detector is used for fire safety (LEL range) or air quality control
(0...100 to 0...1000 ppm range) etc.
Calibration
E2658-VOC detectors-transmitters have been calibrated by Manufacturer with
standard gas mixtures before delivery. Provided that the sensor is used under
moderate conditions, field recalibration is recommended once a year. Please
contact your dealer for more information.
E2658-VOC_UM_EN
Rev 1
4.07
.2020
Specifications
Sampling method
diffusion
Sensor type
metal oxide semiconductor
Default calibration
toluene
Typical detection range
0...100% LEL
up to 0...1000 ppm
Resolution / digital unit
0.1% LEL
1 ppm
Response time T90
< 120 s
Sensor lifetime
> 5 years
Calibration interval
12 months
Signal update
every 1 second
Power supply options
11...30 VDC, 24 VAC
or 90...265 VAC (with mains power unit)
Power consumption
< 2 VA
Analog outputs
2 × 4-20 mA / 0-10 V, user settable
Outputs assignment
OUT1 2 gas; OUT2 2 gas
Load resistance
R
L
< (Us - 2 V) / 22 mA for 4-20 mA
R
L
> 250 kOhm for 0-10 V mode
Digital interface
RS485, Modbus RTU protocol
no galvanic isolation
Enclosure
Grey die-cast aluminium, wall mount, IP66
Cable gland
M25 for SWA cable or steel conduit Ø10...17 mm
Dimensions
H
8
0 × W125 × D57
/ H80 × W175 × D80
mm
Protection
flameproof, ATEX: II 2 GD, Ex ed IIC T4 Gb
ATEX Approvals
Enclosure:
ATEX / IECEx
DEMKO 13 ATEX 1327771U
II 2 G Ex c IIC Gb
II 2 D Ex tb IIIC Db IP66
Glands:
ATEX / IECEx
II2G Ex e II IP68
IBExU08ATEX 1063 X Ex II 1D Ex tD A20 IP 6x Ex
CE marking
Flameproofepd to IEC EN 60079-1
Increased safety to IEC EN 60079-7
EMC Emissions to EN 61000-6-3, EN 61326-1
EMC Immunity to EN 61000-6-1, EN 61000-6-2
Operating conditions
-30...+70 °C
< 95% RH non-condensing, 0,9...1,1 atm
Explosion-safe zones and ATEX Zones 2 and 22
Normal ambient oxygen level
Avoid exposure to corrosive gases or silicone
containing products
Relay option
Output relays
2 × SPST relays (closing contact),
250 VAC / 30 VDC, 5 A max
Alarm setpoints
(set/release)
RE1 (LOW): 20/16 % LEL;
RE2 (HIGH): 50/40% LEL
RE1 (LOW): 100/80 ppm;
RE2 (HIGH): 300/240 ppm
(for 0...500 ppm range)
Evikon MCI OÜ
Teaduspargi 7/9, Tartu
Tel. +372 733 6310
50411 Estonia
www.evikon.eu
PluraSens
®
Flame Proof
Solvent Vapours Detector-Transmitter
E2658-VOC
User Manual