DTX

DTXCombustible Gas Detector●Combustible gas leak inspection equipment ●Ex-proof certificate Exd ⅡC T6 Gb●Dust Ex-proof certificate Ex tD A21 IP66 T80℃●Site LCD display●Replaceable sensor design

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DTX Combustible Gas Detector

SpecificationsDetected gas: combustible gasDetection theory: catalytic combustion typeMeasure scope: 0～100%LELAccuracy: ±3%LELRepeatability: ±2%Response time: T90＜20S

ElectricalPower supply: 24VDC (normal working voltage: 10～30VDC)Power consumption: ＜2.5Woutput signal: 3-wire 4~20 mA 3-wire 4~20 mA +relay(1A＠24VDC) 3-wire 4~20 mA +relay(1A＠24VDC) + audial & visual alarm (96dB ＠0.1m)

StructuralMain parts material: ADC12 aluminum alloy/316 stainless steelThread: M20X1.5, 1/2NPT internal thread ( select G3/4 or G1/2 or 3/4NPT)Weight: 1.5kg (aluminum alloy, with audial & visual alarm) 1.42kg (aluminum alloy, without audial& visual alarm) 3.48kg (stainless steel, with audial & visual alarm) 3.4kg (stainless steel, with audial & visual alarm)

CertificateEx-proof certificate: Exd ⅡC T6 Gb/ Ex tD A21 IP66 T80℃Fire safety certificate: CCCFMetrological certificate: CMCStandard implemented: GB 15322.1-2003, GB 3836.1-2010, GB 3836.2-2010, GB 3836.4-2010, GB 12476.1-2013, GB 12476.4-2010, GB 12476.5-2013, JJF 1363-2012, JJF 1368-2012, JJF 1421-2013, JJF 1364-2012

Operating conditionIP rating: IP66Temperature: -40℃～70℃Humidity: 10～95%RH (Non-condensing)Pressure: 86～106KPa

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121.0122.519

8.5

Dimension

Product faultAlarm indicate

Zeroing indicate

Communication guide

Gas density unit detected

Density value

Unit: mm

Display

12

10.0

04

12.

04

3

Ø 40.00- Ø 80.00

17.00

102.0086.00 36.00

Unit: mm

Mounting bracket

Mounting style

Horizontal pole Vertical pole Wall type

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DetectorController

Calibration cupConduit

Pressure relief valve with flow meter

Standard gas cylinder

Commissioning and calibration

Display cover assembly

Display assembly

Peripheral components

Enclosure assembly

Sensor assembly

Explosion-proof cover

Weatherproof cover

Audial alarm assembly

Visual alarm assembly

Terminal cover assembly

EMC components

Components

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Wiring terminal with relay

Wiring terminal

Terminal wiring

Site commissioning

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connection of 3-wire detector with controller (with relay)

V+

3

2

1

3

2

1

DetectorController

S

V-

4

5

RL

Equipment power supply

Equipment

V+

S

V-

J

K

Equipment connected with relay

Electrical wiring

Cable peeling position

Wiring Terminal

Flameproof adaptor

Cable

Flameproof wiring style

Take equipment with relay for instance

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选用电缆截面积与24VDC供电传输距离见下表：

(product type selection demonstration)

DTX Gas Detector Type Selection TableModel Product illustration

DTX Gas detector

Code Sensor type code

CP Catalytic combustion type (common)

Code Gas type

KXXX Combustible gas (see combustible gas list)

Code Range

LEL 0-100%LEL

Code Electrical interface

M20 M20

12NPT 1/2NPT

G34 M20X1.5 rotate to G3/4

G12 M20X1.5 rotate to G1/2

34NPT M20X1.5 rotate to 3/4NPT

Code output signal

3A 3-wire 4~20 mA

3AJ 3-wire 4~20 mA+relay

3AJS 3-wire 4~20 mA+relay+audial and visual alarm

Code enclosure material

C12 ADC12 aluminum alloy

316 316 stainless steel

Code mounting style

P normal mounting style

Code System name

X ExSAF gas detection system

Cross-sectional Area（mm2） 1.00 1.50 2.50

Resistance (ohms per km) 18.1 12.1 7.4

Maximum Distance(m) (loop distance) combustible gas

1500 2500 3000

DTX CP K001 LEL G34 3A C12 P X

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DTX Detectable Combustible Gas List

NO. Gas name Formula Corresp. D.Flash point (℃)

Combustible limit (V %) Ig. TEMP

(℃)MESG(mm)

TEMP G. Grade

LFL UFL

K001 Methane CH4 0.55 — 5 15 540 1.14 T1 IIA

K003 Methanol CH3OH 1.11 11 6.7 36 385 0.92 T2 IIA

K004 Methyl formate HCOOCH3 2.07 -18.9 5 23 465 T1 IIA

K005 Ethyl formate HCOOCH2CH3 2.65 -20 2.8 16 455 0.91 IIA

K006 Ethyl methyl Ether CH3OCH2CH3 2.1 -37 2 10.1 190 T4 IIB

K007 Ethane CH3CH3 1 .04 — 3 15.5 515 0.91 T1 IIA

K009 Ethanol CH3CH2OH 1.59 12.8 3.3 19 422 0.91 T2 IIA

K011 Ethylene CH2=CH2 0.97 — 2.7 36 425 0.65 T2 IIB

K012 Methyl acetate CH3COOCH3 2.56 -10 3.1 16 501 T1 IIA

K013 Ethyl acetate CH3COOCH2CH3 3.04 -4.4 2.2 11 427 0.99 T2 IIA

K014 N-butyl acetate CH3COOCH2(CH2)2CH3 4.01 22 1.7 7.3 425 1.04 T2 IIA

K015 Propane CH3CH2CH3 1.56 — 2.1 9.5 466 0.92 T1 IIA

K016 Propyl alcohol CH3CH2CH2OH 2.07 25 2.1 13.5 440 0.89 T2 IIB

K017 Propylene CH2=CHCH3 1.5 — 2 11.1 460 0.91 T1 IIA

K018 Acetone (CH3)2CO 2 -17.8 2.6 12.8 465 1.01 T1 IIA

K019 Butane C4H10 2.05 — 1.9 8.5 405 0.9 T2 IIA

K020 Butanone CH3CH2COCH3 2.48 1.1 1.8 10 404 0.84 T2 IIB

K021 Butadiene CH2=CHCH=CH2 1.87 — 2 12 420 0.79 T2 IIB

K022 Pentane C5H12 2.48