Evikon PluraSens E2658-PID Manuale utente

PluraSens®

Solvent Vapor Detector-Transmitter

E2658-PID

User Manual

E2658-PID Rev 12.03.2021
Table of contents
Acetone 4
Benzene 5
Ethanol 6
Ethyl acetate 7
Toluene 8
Xylene 9
Speciﬁcations 10
Product description 12
Safety requirements 12
PID (photoionization detector) technology 13
Operating conditions 13
Installation guidelines 13
Mounting dimensions 15
Sensor probe handling 16
Gas sensor replacement procedures 16
Electrical connections 17
Operation 19
Maintenance 19
Properties of VOC: ionization energy, the correction factor 20
Calibration and maintenance 29
Delivery set 33
Order code for E2658-PID options 33
Conﬁguring 34
Return to default settings 34
2

E2658-PID Rev 12.03.2021

Modbus RTU Communication 35

RS485 communication interface 35

Communication parameters 35

Modbus holding registers 35

Warranty 40

Manufacturer contacts 40

E2658-PID Rev 12.03.2021

Acetone

A colorless organic solvent with a characteristic pungent odor that is volatile and

ﬂammable with the chemical formula (CH3)2CO.

Synonyms/Trade Names: Dimethyl ketone, Ketone propane, 2-Propanone.

Chemical formula

(CH3)2CO

Molar weight

Relative gas density (to air)

2.0

Conversion*

1 ppm = 2.38 mg/m3

Boiling point

56.11 °C

Low explosive limit (LEL), % vol. in air

2.5

Upper explosive limit (UEL), % vol. in air

12.8

Odor

Characteristic pungent smell

Hazards

Highly ﬂammable.

Slightly toxic in normal use. Irritant causing mild skin

irritation and moderate to severe eye irritation. At high

vapor concentrations, it may depress the CNS.

Exposure limits

8 hours

(2000/39/EC)

1900 mg/m3/ 500 ppm

NIOSH REL TWA

590 mg/m3/250 ppm

IDLH (NIOSH)

2500 ppm [10%LEL]

E2658-PID Rev 12.03.2021

Benzene

A colorless liquid with an aromatic odor that is highly ﬂammable with the molecular

formula C6H6.

Synonyms/Trade Names: Benzol, Phenyl hydride.

Chemical formula

C6H6

Molar weight

Relative gas density (to air)

2.69

Conversion*

1 ppm = 3.19 mg/m3

Boiling point

80 °C

Low explosive limit (LEL), % vol. in air

1.2

Upper explosive limit (UEL), % vol. in air

7.8

Odor

Hyacinth-like odor

Hazards

Highly ﬂammable.

Irritant. Carcinogen.

May cause dizziness; headache, nausea, staggering

gait; anorexia, lassitude.

Target organs: eyes, skin, respiratory system, blood,

central nervous system, bone marrow.

Exposure limits

(NIOSH REL)

Ca TWA

0.319 mg/m3/0.1 ppm

STEL

15 minutes

1 ppm

Ca IDLH

500 ppm

E2658-PID Rev 12.03.2021

Ethanol

A clear colorless liquid with a faintly sweet odor and pungent taste.

Synonyms/Trade Names: ethyl, alcohol.

Chemical formula

CH3CH2OH

Molar weight

Relative gas density (to air)

1,59

Conversion*

1 ppm = 1.89 mg/m3

Boiling point

78.37°C

Low explosive limit (LEL), % vol. in air

3 - 3.3

Upper explosive limit (UEL), % vol. in air

Odor

The characteristic smell of alcohol

Hazards

Highly ﬂammable.

Gas/air mixtures are explosive.

Inhalation of vapors leads to cough, headache, fatigue,

and drowsiness. High concentrations may damage the

fetus. Repeated high exposure may affect the liver and

the nervous system.

Exposure limits

according to

Commission

Directive 2006/15/EC

TWA

8 hours

1210 mg/m3/ 1000 ppm

STEL

15 minutes

E2658-PID Rev 12.03.2021

Ethyl acetate

A colorless organic compound with a sweet pear-like smell that is highly ﬂammable.

Synonyms/Trade Names: ethyl ester, acetic ester, EA, EtOAc.

Chemical formula

C4H8O2

Molar weight

Conversion*

1 ppm = 3.60 mg/m3

Boiling point

77.1 °C

Low explosive limit (LEL), % vol.

in air

Upper explosive limit (UEL), %

vol. in air

11.5

Odor

Sweet “pear” smell

Hazards

Flammable.

Short-term exposure to high levels of ethyl acetate results ﬁrst in

irritation of the eyes, nose, and throat, followed by headache,

nausea, vomiting, sleepiness, and unconsciousness.

Exposure limits

(NIOSH)

TWA

8 hours

1400 mg/m3/400 ppm

IDLH

2000 ppm [10%LEL]

E2658-PID Rev 12.03.2021

Toluene

A clear, colorless liquid with a sweet smell that is highly ﬂammable.

Synonyms/Trade Names: methylbenzene, phenylmethane.

Chemical formula

C6H5CH3

Molar weight

Conversion*

1 ppm = 3.77 mg/m3

Boiling point

110.7°C

Low explosive limit (LEL), % vol.

in air

1.1 - 1.27

Upper explosive limit (UEL), %

vol. in air

6.75–7.1

Odor

Characteristic “chemical” smell

Hazards

Highly ﬂammable.

Gas/air mixtures are explosive.

Inhalation possible effects: irritation eyes, nose; lassitude

(weakness, exhaustion), confusion, euphoria, dizziness,

headache; dilated pupils, lacrimation (discharge of tears); anxiety,

muscle fatigue, insomnia; paraesthesia; dermatitis; liver, kidney

damage

Exposure limits

according to

Commission

Directive

2006/15/EC

TWA

192 mg/mm3/ 50 ppm

STEL

384 mg/mm3/ 100 ppm

E2658-PID Rev 12.03.2021

Xylene

A colorless, ﬂammable liquid with a chemical smell. Xylenes are produced by the

methylation of toluene and benzene.

The term is used for any of three isomers of dimethylbenzene, or a combination thereof.

Synonyms/Trade Names: xylol, dimethylbenzene.

Chemical formula

C6H4(CH3)2

Isomers

ortho-xylene meta-xylene para-xylene

Molar weight

106

Conversion*

1 ppm = 4.34 mg/m3

Boiling point

144.4 °C

139 °C

138.35 °C

Low explosive limit (LEL), % vol.

in air

0.9 - 1.1

Upper explosive limit (UEL), % vol.

in air

6.0–7.0

Odor

Characteristic “chemical” smell

Hazards

Flammable.

Inhaling can cause dizziness, headache, drowsiness, and nausea.

Exposure limits

according to

Commission

Directive

2000/39/EC

TWA

8 hours

221 mg/mm3/ 50 ppm

STEL

15 minutes

442 mg/mm3/ 100 ppm

Conversion of ppm to mg/m3is calculated for 25°C and 1 atm.

E2658-PID Rev 12.03.2021

Speciﬁcations

Detected gases

VOCs with ionisation potential < 10.6 eV

Sampling method

Diffusion

Sensor type

Photoionization detector

Calibration

Isobutylene

Order code

E2638-PID-40

E2638-PID-200

Typical detection range

0...40 ppm (isobutylene)

0...200 ppm (isobutylene)

Resolution / digital unit

1 ppb

1 ppm

Response time T90

< 3 s

Sensor lifetime

5 years

Calibration interval

Monthly or more frequently depending on operating conditions

Signal update

Every 1 second

Power supply

11...30 VDC (default),

24 VAC or 90...265 VAC as options

Power consumption

< 2 VA

Analog outputs

2 × 4-20 mA / 0-10 V, user settable

Outputs assignment

OUT1 2 gas; OUT2 2 gas

Output scale width

> 10 × resolution

Recommended: 20-100% of the detection range

Load resistance

RL< (Us - 2 V) / 22 mA for 4-20 mA

RL> 250 kOhm for 0-10 V mode

Digital interface

RS485, Modbus RTU protocol; No galvanic isolation

Cable connections

Screwless spring-loaded terminals

Enclosure

Grey die-cast aluminum, wall mount, IP66

Cable gland

M25 for SWA cable or steel conduit Ø10...17 mm

Dimensions

H80 × W125 × D57 / H80 × W175 × D80 mm

Protection

Flameproof, ATEX: II 2 GD, Ex d 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

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