crowcon sensores

CO2

H2S

CI2

NH3

O3

CO

O2

CH4

SO2

CO2

H2S

Fixed detectors for flammable, toxic or oxygen gases

Xgard Type 1: Intrinsically safe toxic and oxygen gas detector

Xgard Type 2: Flameproof toxic and oxygen gas detector

Xgard Type 3: Flameproof flammable gas detector

Xgard Type 4: Flameproof high temperature flammable gas detector

Xgard Type 5: Flameproof flammable gas detector with 4-20mA output

Xgard Type 6: Flameproof thermal conductivity type gas detector

Xsafe: Safe area flammable gas detector

Xgard

XgardThe Xgard range of gas detectors has been specifically designed to meet your requirements. The dangers presented by toxic and flammable gases as well as oxygen deficiency vary with each application.

Xgard offers three different sensor concepts so you can choose exactly what you need for your site. Xgard is available in flameproof, intrinsically safe or safe area formats for use in all environments, whatever the classification.

Low cost of ownership• Xgard detectors are designed for easy installation and

maintenance to keep costs down.

• The three junction box options are all designed to make

replacement of sensors and sinters extremely simple.

Spare sensors simply plug-in.

• Many spare parts are common to all Xgard models, which

keeps spares holding requirements to a minimum.

Flexible installation options• Xgard is designed for either wall or ceiling mounting

without the need for additional brackets.

• Xgard can accommodate M20, 1/2” NPT or

3/4” NPT cable glands to suit all site requirements.

• High temperature models are available for hot

environments (up to 150oC).

• Accessories are available for duct mounting and sampling

applications as well as remote gassing for simple sensor

checking.

Wide range of sensorsXgard offers an extremely wide range of sensors for all

applications:

• Poison resistant pellistors, for all flammable detection

needs including hydrocarbons, hydrogen, ammonia, jet

fuel, leaded petrol and vapours containing halogens.

• Electrochemical sensors are used to detect a vast range

of toxic gases and oxygen.

• Thermal conductivity sensors are available to monitor

volume concentrations of gases.

Rugged and reliable• Xgard is manufactured using a choice of three

materials: glass reinforced nylon, highly durable

aluminium with a tough polyester coating, or 316

stainless steel for ultimate corrosion resistance. All

versions are designed to operate even in the harshest

conditions.

• Spray deflectors and weatherproof caps are available

for use in areas subject to regular wash-downs, or

offshore environments.

• All models have been validated to the functional

safety standard IEC 61508 (SIL 1 to SIL 3).

Accessories(all accessories require an Accessory Adaptor to be fitted to the Xgard junction box)

For outdoor use and protection against wash-down operations.

Spray Deflector

For use where a

detector is installed

in direct sunlight

Sun Shield

For use in very wet

conditions, such as

offshore installations

and ships.

Weatherproof Cap

For aiding detection

of gases which are

lighter than air, such

as hydrogen and

methane.

Collector Cone

For use in sampling

applications.

Flow Adaptor

For fitting accessories

to Xgard.

Accessory Adaptor

Xgard label

Amplifier PCB

Universal junction box

‘O’ ring

Plug-in sensor moduleWall mounting lugs

PCB cover

Screw-on lid

Sensor retainer with sinter on

flameproof models

M20, 1/2” or 3/

4”

cable entry

Ceiling mounting lugs

The Xgard range offers a comprehensive selection of fixed point gas detectors that meet the diverse requirements for flammable and toxic gas detection and oxygen monitoring in industries throughout the world.

This diagram is designed to help you choose the correct Xgard detector to suit your needs.

Detector Selector

Ordering RequirementsThe following code is designed to help in the selection of the correct detector. The product reference number should be compiled by inserting the appropriate integer in each box.

*1: Xgard Type 1 ATEX certified detectors will be supplied in a glass-reinforced nylon enclosure as standard, or in a 316 stainless steel enclosure as an option. Xgard Type 1 UL certified detectors and all other Xgard Types will be supplied in aluminium as standard, or in a 316 stainless steel enclosure as an option.

*2: The stainless steel option is not available for Xsafe and Xgard type 4. Example product reference for an I.S. 0-25ppm H2S detector with ATEX certification and M20 cable entry in a standard (nylon) junction box:

XGARD/1/A/M20/AT/H2S/25.

Gas Hazard

TOXI

C O

R O

XY

GEN FLAMM

ABLE

% VolumeGas Concentrations

CO2, CH

4, He, Ar

ZONE 1 OR 2, D

IV 1 OR 2

ZONE 0,1 OR

2, D

IV 1

OR

2

ZO

NE 1

OR 2, DIV 1 OR 2

ZONE 1 OR 2, DIV 1 OR 2

SAFE AREA

Xgard Type 6

Xsa

fe

Xgar

d Ty

pe 1

Xgar

d Type 2

Xgard Type 4 Xgard Type 5 Xgard Type 3

Flameproof electrochemical type detector with 2-wire 4-20mA output.

Intrinsically Safe electrochemical type detector with 2-wire 4-20mA output. Wide range of sensor options. A zener barrier or galvanic isolator is required for I.S. operation.

Flameproof thermal conductivity type detector with 3-wire 4-20mA output.

Flameproof high temperature (up to 150oC) catalytic bead type detector with mV bridge output.

Flameproof catalytic bead type detector with 3-wire 4-20mA output.

Non-certified low cost catalytic bead type detector with 3-wire 4-20mA or mV bridge output.

Flameproof catalytic bead type detector with 3-wire mV bridge output.

Detector Type No. Code Output Junction Box Code Cable Entry Code Certification Code Gas Type Range

XGARD Type 1 1 Standard*1 A M20 M20 ATEX AT Abbreviated up From selection

XSAFE Type 2 2 Stainless Steel*2 S 1/ 2”NPT 1/ 2 UL UL to 8 characters shown on table

Type 3 3 3/ 4”NPT 3/ 4

Type 4 4

Type 5 5

Type 6 6

XSAFE XS mV or mA

Notes: Other sensors and ranges may be available, please contact Crowcon. *Ranges not available for Xsafe or Xgard Type 4 †Contact Crowcon for availability LTEL & STEL figures are derived from the UK HSE document: EH40 Oct 07. Alternative thresholds may apply in countries outside of the UK LEL figures derived from EN61779-1: 2000 *1 Current limits advised in the UK *2 Nominal 0-100ppm range with Carbon Monoxide (CO). Contact Crowcon for a full list of gases that can be detected using this sensor

Xgard Gases and Ranges:

Gas type LTEL(ppm) STEL(ppm) Ranges Available: Ranges Available: Ranges Available: Ranges Available: LEL(%vol) UEL(%vol) Type 1 Type 2 Type 3,4,5 & Xsafe Type 6

Acetylene (C2H

2) 2.3 (2.4) 100 0-100% lel*

Ammonia (NH3) 25 35 50, 100, 250, 0-25%lel*

15 (15) 33.6 (28) 500, 1000 ppm

Argon (Ar) - - Contact Crowcon

Arsine (AsH3) 0.05 - 1 ppm

Bromine (Br2) 0.1 0.2 3 ppm

Butane (C4H

10) 1.4 (1.8) 9.3 (9) 0-100% lel*

Carbon Dioxide 5000 15000 Contact Crowcon (CO

2) (0.5%Vol) (1.5%Vol)

Carbon Monoxide 30 200 50, 100, 200, 250, 50, 100, 250, 500, (CO) 500, 1000, 2000 ppm 1000, 2000 ppm

Chlorine (Cl2) - 0.5 3,5,10,20,50,100 ppm

Chlorine Dioxide 0.1 0.3 1 ppm (ClO

2)

Diborane (B2H

6) 0.1 - 1 ppm

Ethane (C2H

6) 2.5 (3) 15.5 0-100% lel*

Ethylene (C2H

4) 2.3 (2.7) 36 0-100% lel*

Ethylene Oxide 5 - 10, 50, 100 ppm (C

2H

4O)

Fluorine (F2) 1 1 1 ppm

Germane (GeH4) 0.2 0.6 2 ppm

Helium (He) - - Contact Crowcon

Hydrogen (H2) 4 77 (80) 200, 2000 ppm 200, 2000 ppm 0-100% lel* 0-5%, 10%, 50% vv (in air)

0-20%, 25%, 30%, 50% vv (H

2 in N

2)

Hydrogen Chloride 1 5 10, 25 ppm (HCl)

Hydrogen Cyanide - 10 25ppm (HCN)

Hydrogen Fluoride 1.8 3 10 ppm(HF)

Hydrogen Sulphide 5 10 5, 10, 20, 25, 50, 5, 10, 20, 25, 50 (H

2S) 100, 200, 250, 300, 100, 200 ppm

1000 ppm

LPG 2 10 0-100% lel

Methane (CH4) 4.4 (5) 17 (15) 0-100% lel

Nitric Oxide (NO) 5*1 15*1 25, 50, 100 ppm

Nitrogen Dioxide 1 1 10, 50, 100 ppm (NO

2)

Ozone (O3) - 0.2 1 ppm

Oxygen (O2) - - 25% Vol 25% Vol

Pentane (C5H

12) 1.4 (1.5) 7.8 (7.8) 0-100% lel*

600ppm 1800ppm

Petrol Vapour 1.3 6 0-100% lel*

Phosgene (COCl2) 0.02 0.06 1 ppm

Phosphine (PH3) 0.1 0.2 1 ppm

Propane (C3H

8) 1.7 (2.2) 10.9 (10) 0-100% lel

Silane (SiH4) 0.5 1 1 ppm

Sulphur Dioxide (SO2) 1 1 10, 20, 50, 100, 250 ppm

Vinyl Chloride 3.6 33 0-100% lel*(VCM) (CH

2=CHCl) 3 -

Volatile Organics - - 0 - 100 ppm*2

(VO)*2

* 3/4" cable entry only available on aluminium junction boxes


P03018GB Issue 7 January 2010

UK: 2 Blacklands Way, Abingdon Business Park, Abingdon, OXON, OX14 1DY +44 (0) 1235 557700 [email protected]

US: 21 Kenton Lands Road, Erlanger, Kentucky 41018-1845 +1 859 957 1039 [email protected]

NL: Vlambloem 129, 3068JG, Rotterdam +31 10 421 1232 [email protected]

SG: Block 194 Pandan Loop, #06-20 Pantech Industrial Complex, Singapore, 128383 +65 6745 2936 [email protected]

www.crowcon.com

Area reserved for distributor stamp

Xgard Specification:

Xgard Model Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 Xsafe

Junction box ATEX Certified: Glass- Aluminium Aluminium Aluminium Aluminium Aluminium Aluminium material reinforced nylon or or 316 Stainless or 316 Stainless or 316 Stainless or 316 Stainless 316 S/S UL Certified: Steel Steel Steel Steel Aluminium or 316 S/S.

Dimensions 156 x 166 x 156 x 166 x 156 x 166 x 195 x 166 x 156 x 166 x 156 x 166 x 156 x 166 x 111mm (6.1 x 6.5 111mm (6.1 x 6.5 111mm (6.1 x 6.5 111mm (7.6 x 6.5 111mm (6.1 x 6.5 111mm (6.1 x 6.5 111mm (6.1 x 6.5 x 4.3 inches) x 4.3 inches) x 4.3 inches) x 4.3 inches) x 4.3 inches) x 4.3 inches) x 4.3 inches)

Weight Nylon 0.5Kg (1.1lbs) AL 1Kg (2.2 lbs) AL 1Kg (2.2 lbs) 1.5Kg (3.3 lbs) AL 1Kg (2.2 lbs) AL 1Kg (2.2 lbs) 1Kg (2.2 lbs) Alloy 1Kg (2.2 lbs) 316 S/S: 3.1kg (6.8 lbs) 316 S/S: 3.1kg (6.8 lbs) 316 S/S: 3.1kg (6.8 lbs) 316 S/S: 3.1kg (6.8 lbs) 316 S/S: 3.1kg (6.8 lbs)

Ingress IP65 IP65 IP65 IP54 IP65 IP65 IP65 protection

Cable entries 1 x M20 or 1 x M20, 1 x M20, 1 x M20, 1 x M20, 1 x M20, 1 x M20, or 1 /

2” NPT 1 /

2” NPT or 3 /

4” NPT* 1 /

2” NPT or 3 /

4” NPT* 1 /

2” NPT or 3 /

4” NPT* 1 /

2” NPT or 3 /

4” NPT* 1 /

2” NPT or 3 /

4” NPT* 1 /

2” NPT

on right-side on right-side on right-side on right-side on right-side on right-side on right-side

Terminations 0.5 to 2.5mm2 0.5 to 2.5mm2 0.5 to 2.5mm2 0.5 to 2.5mm2 0.5 to 2.5mm2 0.5 to 2.5mm2 0.5 to 2.5mm2

(20 to 13awg) (20 to 13awg) (20 to 13awg) (20 to 13awg) (20 to 13awg) (20 to 13awg) (20 to 13awg)

Sensor type Electrochemical Electrochemical Catalytic bead 316 s/s Catalytic bead Thermal Catalytic bead sensor housing conductivity with catalytic beads

Operating -20 to +50oC -20 to +50oC -40 to +80oC -20 to +150oC -40 to +55oC +10 to +55oC -40 to +80oCtemperature (-4 to 122oF) (-4 to 122oF) (-40 to 176oF) (-4 to 302oF) (-40 to 131oF) (50 to 131oF) (-40 to 176oF) (sensor dependant) (sensor dependant) (mV version) -40 to +55oC (-40 to 131oF) (mA version)

Humidity 15-90% RH 15-90% RH 0-99% RH 0-99% RH 0-99% RH 0-90% RH 0-99% RH non-condensing non-condensing non-condensing non-condensing non-condensing non-condensing non-condensing

Repeatability <2% FSD (Typ.) <2% FSD (Typ.) <2% FSD (Typ.) <2% FSD (Typ.) <2% FSD (Typ.) <2% FSD (Typ.) <2% FSD (Typ.)Zero drift <2% FSD / month <2% FSD / month <2% FSD / month <2% FSD / month <2% FSD / month <2% FSD / month <2% FSD / month (Typ.) (Typ.) (Typ.) (Typ.) (Typ.) (Typ.) (Typ.)

Response time T90 <10s Oxygen T90 <10s Oxygen T90 <15s (Typ) T90 <15s (Typ) T90 <15s (Typ) T90 <15s (Typ) T90 <15s (Typ) T90 <30s to 120s T90 <30s to 120s Toxic (sensor Toxic (sensor dependant) dependant)

Operating 8 – 30V dc 8 – 30V dc 2.0V dc +/- 0.1V 2.0V dc +/- 0.1V 10 – 30V dc 10 – 30V dc 10 – 30V dc voltage (Typ) (Typ) (mA version) 2.0V dc (mV version)

Power 24mA max. 24mA max. 300mA (Typical) 300mA (Typical) 50mA @ 24V 50mA @ 24V mA version: requirements dc 1.2W dc 1.2W 50mA @ 24V dc 1.2W. mV version: 300mA (Typ.)

Electrical 2-wire 4-20mA 2-wire 4-20mA 3-wire mV bridge 3-wire mV bridge 3-wire 4-20mA 3-wire 4-20mA mA version: output (current sink) (current sink) Typical signal Typical signal (current sink or (current sink or 3-wire 4-20mA 12-15mV / %lel >10mV / %lel source) source) (current sink or CH4 CH4 source) mV version: 3-wire mV bridge Typical signal 12-15mV / %lel CH4

Approvals ATEX: II 1 G ATEX: II 2 GD ATEX: II 2 GD ATEX: II 2 G ATEX: II 2 GD ATEX: II 2 GD Not certified Exia IIC T4 Exd IIC T6 Exd IIC T4 Exd IIC T3 Exd IIC T6 Exd IIC T6 for use in a (Tamb –40 to (Tamb –40 to (Tamb –40 to (Tamb –20 to (Tamb –40 to (Tamb –40 to hazardous +55oC) +50oC) +80oC) +150oC) +50oC) +50oC) environment. UL/cUL: Cl I, Div 1 UL: Class 1, Div. 1 Exd IIC T6 Exd IIC T4 Exd IIC T4 Groups A,B,C,D Groups B,C,D Tamb (-40 to +50oC) (Tamb –40 to +80oC) (Tamb -40 to +80oC) IECEx IECEx UL: Class 1, Div. 1 UL: Class 1, Div. 1 UL: Class 1, Div. 1 MED Marine MED Marine Groups B,C,D Groups B,C,D Groups B,C,D (Oxygen Only) (Oxygen Only) IECEx IECEx IECEx GOST-R GOST-R GOST-R GOST-R GOST-R

EMC EN 50270 EN 50270 EN 50270 EN 50270 EN 50270 EN 50270 EN 50270 compliance FCC Part 15 FCC Part 15 FCC Part 15 FCC Part 15 FCC Part 15 FCC Part 15 FCC Part 15 ICES-003 ICES-003 ICES-003 ICES-003 ICES-003 ICES-003 ICES-003

PC4

ERT_Info

CH4

C2 H4

C3H8

C4H10

C2H50H

C6H14

LPG

C5H12

CO2

Detector Infravermelho de Gases

Xgard IR

O Xgard IR é um detector de gases à prova de explosões que usa um sensor infravermelho de duplo comprimento de onda para proporcionar detecção confiável de gases e vapores perigosos. O Xgard IR oferece muitas vantagens da tecnologia de raios infravermelhos em um pacote de preço acessível:

Baixo custo

• Sensor com mais de 5 anos de vida útil

• Necessária pouca manutenção • Substituição de peças simples • Mais baixo consumo de energia

da categoria (metade do consumo dos de esferas catalíticas)

Altamente versátil

• Saída de 4-20 mA padrão da indústria

• Compatível virtualmente com qualquer sistema de controle

• Aprovado segundo ATEX, IECEx, UL e equipamento marítimo MED**

Robusto e confiável

• Fabricado de alumínio resistente à corrosão ou aço inoxidável 316

• Proteção contra líquidos e poeira IP65

• Lâmpada IR de tungstênio de longa duração

• Total compensação de temperatura • Acessórios para ambientes úmidos • 2 anos de garantia

Opção de sensores

• Hidrocarboneto para detecção de gases de HC em concentrações inflamáveis

• Dióxido de Carbono para detecção de CO2 em concentrações tóxicas

• Tecnologia de sensor à prova de falhas • Imune a envenenamento • Nenhum dano devido a excesso de gases • Resposta rápida • Não precisa de oxigênio para funcionar

P03020BR 7ª edição setembro de 2010





www.crowcon.com


Especificação do Xgard IR:

• Model

Acessórios do Xgard IR

Proteção contra o sol

A Crowcon reserva o direito de mudar o desenho ou as especificações do produto sem aviso prévio.

Material da caixa Alumínio resistente à corrosão ou aço inoxidável 316

Dimensões 156 mm x 166 mm x 111 mm (alt x larg x prof )

Peso 1 kg – Alumínio, 3,1 kg – Aço Inoxidável

Proteção contra líquidos e poeira

IP65

Entradas de cabos 1 x M20 ou ½" NPT do lado direito

Energia 10-30 VCC – 50 mA a 24 VCC, 67 mA a 10 VCC

Temperatura de funcionamento

-20°C a +55°C.

Umidade relativa 0 a 95% sem condensação

Potência elétrica 3 fios 4-20 mA (coletor ou fonte de corrente)

Terminais Adequados para cabo de até 2,5 mm2

Tipo de sensor Infravermelho

Repetibilidade +/- 2% FSD*

Desvio do zero +/- 2% FSD/mês*

Tempo de resposta T90 <30 seg.*

Zonas de área perigosa Zona 1 ou Zona 2, Zona 21/22

Aprovações II 2 GD Exd IIC T6 (Temp amb até +50°C) II 2 GD Exd IIC T4 (Temp amb até +80°C) UL Classe 1 Div. 1 Grupos B, C, D IECEx Diretiva de Equipamento Marítimo (MED, 96/98/EC conforme alteração)**

Conformidade com EMC EN50270, EN60945, FCC parte 15, ICES-003

Desempenho EN60079-29-1

* Segundo testes nos laboratórios da Crowcon ** Aprovação da Diretiva de Equipamento Marítimo MED disponível somente

para versões de hidrocarbonetos (não CO2)

Cone coletor Para auxiliar a detecção de gases

que são mais leves do que o ar (ex: metano)

Defletor de borrifos Para uso no exterior e proteção contra

operações de lavagem

Tampa à prova de intempéries Para uso em condições muito

úmidas, como instalações offshore e navios

Adaptador de fluxo Para uso em operações

de amostragem

Tipo de gás LTELLEL (% vol)

STELUEL (% vol)

Intervalos disponíveis

Dióxido de carbono (CO2) 0,5% vol. 1,5% vol. 0-2 ou 0-5%

Etileno (C2H4) 2,7 (2,3) 36 (36) 0-100% lel

Metano (CH4) 5 (4,4) 15 (17) 0-100% lel

Propano (C3H8) 2,2 (1,7) 10 (10,9) 0-100% lel

Butano (C4H10) 1,8 (1,4) 9 (9,3) 0-100% lel

Etanol (C2H5OH) 3,3 (3,1) 19 (19) 0-100% lel

Hexano (C6H14) 1,2 (1) 7,4 (8,4) 0-100% lel

GLP 2 10 0-100% lel

Pentano (C5H12) 1,5 (1,4) 8 (7,8) 0-100% lel

Os valores LEL indicados entre parênteses são tirados da norma EN 61779 Parte 1:2000

IEC 61508Validated

SIL

CO2

H2S

CI2

NH3

O3

CO

O2

CH4

SO2

HF

H2

TXgard &Flamgard Plus

The Flamgard and TXgard ‘Plus’ range of detectors offer reliable detection of flammable, toxic or oxygen gases with a local display and optional relays.

Three models are available to suit all requirements:

Flamgard Plus: ‘Exd - Flameproof’ flammable gas detector with local display and optional relays

TXgard Plus : ‘Exd - Flameproof’ toxic or oxygen gas detector with local display and optional relays

TXgard-IS+: ‘I.S. - Intrinsically Safe’ toxic or oxygen gas detector with local display

Low cost of ownership

• Non-intrusive one man calibration

• Long life sensors

• Simple parts replacement

Wide range of sensors

• Choice of catalytic beads for a wide selection of flammable gases and vapours

• Extensive range of electrochemical sensors for toxic gases and oxygen

Rugged and reliable

• TXgard Plus and Flamgard Plus are constructed using marine grade aluminium with a stainless steel sensor housing

• TXgard-IS+ is made from tough carbon loaded nylon

• Proven track record for operation in the harshest environments

Flexible output options

• 4-20mA current sink or source

• 2 or 3 wire formats

• Optional relays for alarm and fault

STEL & LTEL figures are derived from the UK HSE document: EH40. Other thresholds may apply in countries outside the UK.

Crowcon reserves the right to change the design or specification of the product without notice.





www.crowcon.com


TXgard & Flamgard Plus Specification:

Model Flamgard Plus TXgard Plus TXgard-IS+

Size 200h x 115w x 115d (mm) 200h x 115w x 115d (mm) 160h x 123w x 92d (mm)

Weight 2.2kg 2.2kg 0.7kg

Enclosure material Junction box: Marine grade alloy Sensor housing: 316 stainless steel

Junction box: Marine grade alloySensor housing: 316 stainless steel

Junction box: Carbon loaded nylonSensor housing: ABS plastic

Ingress Protection IP65 IP65 IP65

Cable entries 2 x M20 or 1/2” NPT 2 x M20 or 1/2” NPT 1 x M20 or 1/2” NPT with adaptor

Power 10-30Vdc, 210mA max (relay version)160mA max (non relay)

10-30Vdc, 100mA max (relay version)50mA max (non relay)

8-32Vdc, 4-20mA loop-powered

Operation temperatures -10OC to +55OC (14OF to 131OF) -10oC to +55oC (14oF to 131oF)Figures shown exclude the sensors - Please contact Crowcon for a full list of sensor operating temperatures

-20oC to +55oC (-4oF to 131oF)Figures shown exclude the sensors -Please contact Crowcon for a full list of sensor operating temperatures

Humidity 0-99% RH non-condensing 15 to 90% RH non-condensing 15 to 90% RH non-condensing

Relays (optional) SPNO or SPNC contacts rated30Vdc 1A (non-inductive load) for Alarm 1, Alarm 2, Fault

SPNO or SPNC contacts rated30Vdc 1A (non-inductive load) for Alarm 1, Alarm 2, Fault

N/A

Display 3-digit LCD back-lit display, LED status indicator

3-digit LCD back-lit display, LED status indicator

2-Line, 16 character LCD

Calibration method Via magnetically operated buttons Via magnetically operated buttons Via push-buttons

Electrical output 3 wire 4-20mA (current sink or source) 3 wire 4-20mA (current sink or source) 2 wire 4-20mA (current sink)

Terminals Suitable for up to 1.5mm2 cable Suitable for up to 1.5mm2 cable Suitable for up to 2.5mm2 cable

Sensor type Catalytic bead Electrochemical Electrochemical

Repeatability +/- 2% FSD typically +/- 2% FSD typically +/- 2% FSD typically

Zero drift +/-2% FSD, 6 months typically +/-2% FSD, 6 months typically +/-2% FSD, 6 months typically

Response time T90 <15 seconds typically Contact Crowcon for a full list of sensor response times

Contact Crowcon for a full list of sensor response times

Hazardous area zones Zone 1 or 2 Zone 1 or 2 Zone 0, 1 or 2Division 1 or 2(when connected via an isolation device)

Approvals ATEX II 2 G Exd IIC T6UL Class I Zone 1

ATEX II 2 G Exd IIC T6UL Class I Zone 1

ATEX, IECEx II 1 G Exia IIC T4 GaUL & cUL Class I Groups A,B,C,D.

EMC compliance EN50270, FCC, ICES-003 EN50270, FCC, ICES-003 EN50270, FCC, ICES-003

Gas Type LEL (%vol) Ranges Available: Flamgard Plus

Acetylene (C2H2)* 2.3 (2.4) 0-100% LEL

Ammonia (NH3) 15 0-100% LEL

Butane (C4H10) 1.4 (1.8) 0-100% LEL

Ethanol (C2H5OH) 3.1 (4.3) 0-100% LEL

Ethane (C2H6) 2.5 (3) 0-100% LEL

Ethylene (C2H4) 2.3 (2.7) 0-100% LEL

Hexane (C6H14) 1.0 (1.1) 0-100% LEL

Hydrogen (H2) 4 0-100% LEL

LPG 2 0-100% LEL

Methane (CH4) 4.4 (5) 0-100% LEL

Methanol (CH3OH) 5.5 (7.3) 0-100% LEL

Pentane (C5H12) 1.4 (1.5) 0-100% LEL

Petrol vapour 1.3 0-100% LEL

Propane (C3H8) 1.7 (2.2) 0-100% LEL

Propanol (C3H8O) 2.2 (2.1) 0-100% LEL

LEL figures derived from EN61779-1:2000*Acetylene option not available on UL certified version.

Gas Type LTEL (ppm) STEL (ppm) Range Available:TXgard-IS+

Range Available:TXgard Plus

Ammonia (NH3) 25 35 50, 100 ,1000 ppm -

Carbon Monoxide (CO) 30 200 250, 500 ppm 100, 250, 500, 1000 ppm

Chlorine (Cl2) - 0.5 5, 10, 20 ppm -

Chlorine Dioxide (ClO2) 0.1 0.3 1 ppm -

Hydrogen (H2) N/A N/A 2000ppm, 50%LEL, 100%LEL -

Hydrogen Cyanide (HCN) 10 (MEL) 25 ppm -

Hydrogen Fluoride (HF) 1.8 3 10 ppm -

Hydrogen Sulphide (H2S) 5 10 5, 25, 50, 100, 200 ppm 15, 20, 25, 50, 100, 200 ppm

Nitrogen Dioxide (NO2) 1 1 10 ppm -

Ozone (O3) - 0.2 1 ppm -

Oxygen (O2) - - 25% Vol 25% Vol

Phosgene (COCl2) 0.02 0.06 1 ppm -

Phosphine (PH3) 0.1 0.2 2 ppm -

Sulphur Dioxide (SO2) 1 1 10, 20 ,30 ppm -

P03019GB Issue 4 April 2010

CH4

C2H

6

C3H

8

C4H

10

C5H

12

C6H

14

C7H

16

C2H

4

C2H

5OH

C3H

6

LPG

Detector Infravermelho de Gases de Hidrocarbonetos

IRmax

IRmax• Detector de gases infravermelho robusto, compacto e de baixo consumo para o monitoramento de concentrações potencialmente inflamáveis de metano, butano, propano entre muitos outros vapores e gases hidrocarbonetos.

IR Display• Acessório com Visor disponível para conexão direta com o IRmax ou por conexão remota com até 30 metros de distância do detector.

• O IR Display exibe níveis de obscurecimento óptico e de gás e permite uma calibração não invasiva do detector.

IRmaxO IRmax é um detector de gases IV de qualidade premium projetado para proteger instalações contra perigos de gases inflamáveis. IRmax é a escolha perfeita para proteger instalações novas ou para aprimorar a segurança de localidades existentes.

Robusto e confiável •Resposta rápida: com um tempo de resposta de somente

4 segundos, o IRmax fornece uma rápida detecção contra perigos de gases de hidrocarbonetos.

•Excelente segurança: projetado e aprovado em conformidade com o IEC61508 SIL 2, o IRmax foi testado rigorosamente em ambientes offshore.

•Ampla gama de temperaturas operacionais: o IRmax possui temperatura totalmente compensada para a operação em ambientes de -40°C a +75°C.

•Detecção confiável: O IRmax continua a detectar gases mesmo com o sistema óptico obstruído em até 90% por sal ou outros contaminantes. O nível de obscurecimento (contaminação) pode ser facilmente verificado pelo IR Display e um sinal de falha é gerado quando os ópticos estiverem 90% obstruídos.

•Folha de serviço comprovada: o IRmax passou por testes intensos de longa duração realizados por empresas terceirizadas para comprovar confiabilidade em ambientes quentes, frios, úmidos e salinos.

Manutenção simples •Baixa manutenção: o IRmax emprega sistemas sofisticados

e algoritmos para garantir uma operação confiável em todos os momentos.

•Calibração não invasiva remota: o IR Display permite verificação de status simples, além da capacidade de zerar e calibrar o detector. O IR Display pode ser instalado com até 30 metros de distância do IRmax e gases teste podem ser aplicados sem a necessidade de acessar o detector diretamente.

•Calibrador I.S. portátil: quando um visor local não for requerido, os detectores IRmax instalados com um módulo de barreira I.S. podem ser verificados e calibrados com uso de um acessório de calibração Intrinsecamente Seguro (I.S.).

•Ópticos STAY-CLIR: os componentes ópticos são tratados com um revestimento patenteado para evitar um obscurecimento em potencial em atmosferas com condensação. O revestimento STAY-CLIR reduz significantemente o acúmulo de poeira, sujeira ou outros contaminantes na janela e espelho.

Fácil de instalar •Tamanho compacto: o IRmax é bem menor do que os

detectores de gases IV convencionais e, por este motivo, requer menos espaço, esforços e tempo de instalação.

•Opções de instalação: o IRmax pode ser instalado em paredes, fixo em um tubo de 2” (50 mm) ou conectado a uma caixa de derivação auxiliar com uso de uma série de acessórios de montagem.

•Conectividade versátil: com padrão de indústria de sinal de saída 4–20 mA, opções para RS-485 Modbus e comunicações HART, o IRmax é compatível virtualmente com qualquer sistema de controle.

Baixo custo •Baixo consumo de energia: ao contrário dos detectores

de gases IV convencionais, o IRmax não requer janelas ou espelhos aquecidos. O IRmax consome somente 1 Watt de energia, permitindo um fornecimento de energia inferior e o uso de sistemas de backup de bateria.

• IR Display Remoto: a versão remota do IR Display permite verificação, ajuste e calibração do detector IRmax sem a necessidade de um acesso direto a ele. Este recurso elimina a necessidade do uso de escadas, andaimes, entre outros meios, para a realização de tarefas de manutenção de rotina em detectores instalados em áreas inacessíveis.

•Manutenção mínima de rotina: possui uma monitoração automática de obscurecimento óptico e somente requer testes de gases ocasionais, mantendo os custos de engenharia de manutenção ao mínimo.

O IRmax está disponível como uma unidade básica sem o visor ou com três opções de visor. O IR Display fixo é anexado permanentemente a um detector IRmax a fim de permitir verificações de status simples e calibração não invasiva. O IR Display remoto pode ser instalado com até 30 metros de distância de um detector IRmax, facilitando a verificação e manutenção dos detectores instalados em áreas inacessíveis. O calibrador I.S. portátil está disponível para conexão temporária em detectores IRmax instalados com um módulo de barreira I.S.

Opções do IRmax

IRmax•Resposta rápida

• Em conformidade com

IEC61508 SIL 2

• Vasta gama de gases

IR Display Remoto •Pode ser instalado em uma distância de até 30 metros

do IRmax

• Elimina a necessidade de acessar o detector IRmax diretamente

•Opções de comprimento de condutores de conexão

Comunicações HART•Comunicadores portáteis HART podem ser conectados ao IR Display

para diagnósticos locais e calibração

•Os dados HART são superimpostos no sinal 4-20 mA para

comunicação com sistemas de controle ativados por HART

• Compatível com topologias ponto a ponto ou HART endereçável

IR Display Fixo •Visor amplo e nítido exibe os níveis de gases

e outras informações de status

• Calibração não invasiva simples

• Permite a conexão de comunicadores HART

portáteis

• Pode ser girado para cima e para baixo a fim

de fornecer um ângulo de visão aprimorado

RS-485-Modbus•Permite interrogação remota do IRmax

• Permite que até 32 detectores possuam conexão

multiponto em uma rede endereçável

• Plataforma física RS-485 para transmissão de dados

com até 1 Km

Calibrador portátil I.S. •Permite calibração e interrogação de detectores IRmax

sem um IR Display fixo ou remoto

• Somente um calibrador I.S. portátil

requerido por conjunto de detectores IRmax

• Intrinsecamente Seguro; adequado para

uso em áreas perigosas

Módulo de IR Display Fixo

Módulo de IR Display Fixo Permite conexão de IR Display Remoto

ou Calibrador I.S. para IRmax


P03024BR Edição 3 Outubro de 2010

UK: 2 Blacklands Way, Abingdon Business Park, Abingdon, OXON, OX14 1DY

+44 (0) 1235 557700 [email protected]

US: 21 Kenton Lands Road, Erlanger, Kentucky 41018-1845

+1 859 957 1039 [email protected]

NL: Vlambloem 129, 3068JG, Rotterdam

+31 10 421 1232 [email protected]

SG: Block 194 Pandan Loop, #06-20 Pantech Industrial Complex, Singapore, 128383

+65 6745 2936 [email protected]

A Crowcon se reserva o direito de alterar o design ou as especificações do produto sem aviso prévio.

www.crowcon.com


Especificação IRmax:

Acessórios

Linearização Faixa

Acetona (C3H

6O) 0-100% LIE

Butano (C4H

10) 0-100% LIE

Etanol (C2H

5OH) 0-100% LIE

Etileno (C2H

4) 0-100% LIE

Acetato de etilo (CH3COOC

2H

5) 0-100% LIE

Heptano (C7H

16) 0-100% LIE

Hexano (C6H

14) 0-100% LIE

GPL 0-100% LIE

Metano (CH4) 0-100% LIE

Metanol (CH3OH) 0-100% LIE

Pentano (C5H

12) 0-100% LIE

Propano (C3H

3) 0-100% LIE

THF (Tetrahydrofuran) 0-100% LIE

Tolueno (C7H

8) 0-100% LIE

Outras faixas podem estar disponíveis, entre em contato com a Crowcon.

Kit suporte de montagem

Cobertura de calibração

Adaptador de fluxo Prensaestompa

Protetor solarCaixa de derivação auxiliar

Condutores de conexão para visor remoto I.S.

Kit de montagem de duto

Descrição Detector Infravermelho de gases de hidrocarbonetos de feixe duplo com visor opcional.

Material do invólucro Aço inoxidável 316

Tamanho IRmax: 158 C x 75 A x 57 P mm (6,2 x 2,9 x 2,6 pol.) IRmax com IR Display Fixo: 230 C x 75 A x 57 P mm (9 x 2,9 x 2,6 pol.) IRmax com módulo de barreira IS: 261 C x 75 A x 57 P mm (10,2 x 2,9 x 2,6 pol.) IR Display Remoto: 60 C x 54 A x 48 P (2,3 x 2,1 x 1,9 pol.)

Peso IRmax: 1,58 Kg (3,5 lbs) IRmax com IR Display Fixo: 2 kg (4,4 lbs) IRmax com módulo de barreira IS: 2,4 kg (5,3 lbs) IR Display Remoto: 0,2kg (0,4 lbs)

Proteção contra líquidos e poeira

IP66

Conexão Uma entrada de prensa de cabo ½”NPT ou M20

Alimentação 12-30 Vdc. <1W

Saída elétrica Dreno ou fonte atual de 4-20 mA Alerta de ópticos sujos 2 mA (configurável) Sinal de falha de detector 0 mA (configurável) RS-485 Modbus (opcional) HART 7 (opcional)

IR Display LCD de 4 dígitos com luz de fundo Os botões de funções podem ser desativados se necessário Sinalizador sonoro com pressionamento de tecla Terminais para conexão de comunicadores HART (função opcional) LED vermelha: Gás detectado LED laranja: Falha do IRmax LED verde: Saudável Funções de visor: nível de gás, nível de obscurecimento, tensão de alimentação, corrente de sinal Funções protegidas por senha: ação de zerar, calibração, saída de ramp, ajuste zero mA, ajuste span mA

Temperatura operacional

-40°C a +75°C (-40°F a 167°F)

Umidade Umidade relativa de 0 a 100% sem condensação

Faixa de pressão Atmosférica +/-10%

Repetibilidade +/- 2% FSD

Desvio de zero Máximo de +/- 2% FSD por ano

Tempo de resposta T90 <4 seg.

Desempenho Em conformidade com EN60079-29-1

Segurança funcional IEC61508 SIL 2

Aprovações ATEX & IECEx IRmax: Ex II 2 G Exd IIC T6 Gb (Tamb -40 a +50°C), T4 (Tamb -40 a +75°C) IRmax (IR Display compatível): Ex II 2 G Exd ia IIC T4 Gb (Tamb -40 a +75°C)

Zonas Certificado para uso em áreas de perigo Zona 1 ou Zona 2

Conformidade com EMC

EN50270:2006 FCC CFR47 Parte 15B ICES-003

CH4

C2H6

C3H8

C4H10

C5H12

C6H14

C7H16

C2H4

C2H5OH

C3H6

LPG

Pellistor Replacement IR Gas Detector

• Pellistors do not fail safe: sensors can be ‘poisoned’ and rendered insensitive to gas by silicones, lead, sulphurs and chlorinated compounds.

• Pellistors must be operated behind a sinter (flame arrestor): which may become blocked, thus preventing gas from reaching the sensor. • Pellistors may burn-out: if exposed to gas concentrations in excess of 110%LEL.

• Pellistors are high-maintenance: sensors must be regularly tested with gas to ensure they are still operational. Sensors typically last 3-5 years, after which they must be exchanged.

• Pellistors need oxygen: their ability to detect gas reduces significantly in oxygen deficient atmospheres.

IREX is an innovative infrared (IR) flammable gas detector designed specifically to directly replace pellistor (catalytic bead) type flammable gas detectors. IREX operates from control systems designed solely for use with pellistor-based gas detectors: it produces a mV Wheatsone Bridge type signal (as per a pellistor) and operates from as little as 2.9Vdc. IREX is supplied with an M20 type fixing enabling originally installed detector junction boxes and cables to be retained.

IR Technology versus Pellistor Gas SensorsPellistor sensor technology has provided effective flammable gas detection at low cost for many years. Pellistors do however have several disadvantages:

IREX

All of these issues are overcome using IREX.


The IREX concept enables pellistor-based gas detection systems to be upgraded to dual-wavelength IR gas detector technology without incurring the very significant costs associated with upgrading the control system and re-installation.





www.crowcon.com

STAY-CLIR optics: optical components are treated with a patented

coating to prevent potential obscuration in condensing atmospheres.

Unlike conventional IR gas detectors, IREX does not require heated

windows or mirrors. As a result IREX consumes only 1 Watt of power

which ensures compatibility with a wide range of control systems.

Sinter-free operation: pellistor based detectors and other IR type

gas detectors are fitted with sinters (flame arrestors) to achieve Exd

Flameproof certification. Sinters slow response time significantly and can

become blocked by contaminants: a dangerous un-revealed failure.

Fast response: with a T90 response time of less than 4 seconds, IREX

competes with even the most expensive conventional IR gas detectors.

Minimal maintenance: IREX employs sophisticated systems and

algorithms to ensure reliable operation at all times. No adjustments are

necessary at the detector, zero and span adjustments (if required) are

performed at the control panel only.

Remote gassing: gas response tests and calibration can be performed

without accessing the detector. Test gas can be applied remotely via a

tube to the standard weather cover, saving significant time and cost.

3rd party validation: IREX has been independently tested for reliability

and performance in harsh offshore conditions by Micropack Engineering

Ltd a highly respected test authority. This, along with 3rd-party approval

to the performance standard EN60079-29-1, demonstrates IREX will

operate dependably in any application.

Description Dual-beam infrared pellistor replacement

hydrocarbon gas detector

Gases 0-100%LEL methane, propane, butane and other

hydrocarbons

Enclosure material 316 stainless steel

Size 120h x 55w x 130d mm (with spigot gland)

Weight 1.5Kg

Ingress protection IP66

Connection Supplied either with M20 spigot gland for

installation into existing junction boxes or with

one M20 cable gland entry

Power <1W

Operating voltage

and current

2.9 - 3.2Vdc, 330 - 400mA Over-voltage and

reverse polarity protected

Electrical output 3-wire mV (Wheatstone) Bridge. Typically 10-

20mV per % volume Methane

Operating

temperature

-40°C to +75°C

Humidity 0 to 100% RH non-condensing

Repeatability +/- 2% FSD

Zero drift +/- 2% FSD per year maximum

Response time T90 <4 secs.

Performance Tested in accordance with EN60079 - 29 - 1

Functional safety Validation to IEC61508 SIL 2*

Approvals II 2 G Exd IIB + H2 T6 (-40 to +50°C) T4 (-40 to +75°C)ATEX & IECEx

EMC compliance EN 50270, FCC, ICES-003

IREX Accessories:

• Spigot gland: for mounting IREX to existing M20 junction boxes

(supplied)

• Mounting bracket: suitable for wall or pipe mounting (not required

if spigot gland is used)

• Sun Shade/Collector Cone

• Duct sampling unit

• Calibration cap (required if ambient air speed exceeds 2m/s)

*Feature currently pending, contact Crowcon for more information

P03023 GB Issue 3 Jan 10

Specifications:

Crowcon reserves the right to change the design or specification of the product without notice.

Nimbus

DetectorsInfrared flammable gas detector you can trust

Nimbus

Rugged & reliable

One man calibration

Simple maintenance

Flexible installation

Nimbus is compact and lightweight but rugged.Maintenance is simple, and because it is compatible withhandheld and laptop computers, units can be checkedby a single engineer.

It can be integrated into existing systems with ease.Nimbus protects staff and property without makingyour life complicated.

Nimbus has been designed to be lightweightbut tough.

Even in the dirtiest conditions Nimbusstill functions. The optics operate at up to90% obscuration. While still detecting gas, at75% obscuration a dirty optics warning flashesso you know when to clean Nimbus.

Dust and water ingress are not a problem eitheras Nimbus is rated IP66 and IP67. Alliedto this Nimbus has full approvals from bothEUROPE and North America.

Nimbus has a MTBF of 10 years. This figurehas been independently assessed using the MILHandbook 217F/2/12/91

In short you can rely on Nimbus to protect you.

Nimbus has a local external status lightwhich shows, at a glance, if the unit is in normalfunction or fault. When a hazard is detected itindicates both rising gas and alarm levels.

The status light clearly indicates 22 furtherconditions for instant diagnosis.

Nimbus is simple to use even ininaccessible areas. A duct mounting plate is available, which incorporates a remote gassing port to allow calibration checking without requiring entry into the duct.

Nimbus is compatible with Windows software,which means that a Windows compatible portable PC can be used to check gas levels, find faults and change configurations in the field. Only one person is required to do this.

Nimbus is fitted with an optical Communications Interface Module, to allow connection of a PC without opening the detector.

For detectors installed in a hazardous area, the configuration and status can be checked remotely using the Modbus serial link.

Nimbus can be integrated into existingsituations with ease. It has a RS485 output and dual redundant 4-20mA outputs, compatible with metric and imperial armoured cable and conduit.

The Modbus serial link allows addressabledetectors to be looped providing a remotecontrol and interrogation facility.

For facilities where Nimbus is replacing apellistor based detector the pellistor mimicmeans that existing cabling can beretained to reduce upgrade costs.

Nimbus, the total system solution

It can interface with any standard control system,or combination of systems, new or old.

Safe area

Mounting Options

Hazardous area

Existing pellistorinstallations

Laptop/PC Configuration

New Installations

DC supply

SIDE VIEW

BOTTOM VIEW

NIMBUS DUCT MOUNTING PLATEWITH HINGE FOR EASY ACCESS

Interior Duct Mounting Exterior

PLC-DCS-BMS

MODBUS (RS485) Serial Link

Simultaneous 4-20 mA outputs sink or source

Optional pellistor mimic

3 or 4 wire mV bridge

3 wire 4-20 mA sink or source

P03005 Issue 6 08/05

NimbusInfrared flammable gas detector

UK OfficeCrowcon Detection Instruments Ltd2 Blacklands WayAbingdon Business ParkAbingdonOxfordshire OX14 1DYUnited KingdomTel: +44 (0) 1235 557700Fax: +44 (0) 1235 557749Email: [email protected] Site: www.crowcon.com

USA OfficeCrowcon Detection Instruments Ltd21 Kenton Lands RoadEarlangerKentucky 41018-1845USATel: +1 859 957 1039 or 1-800-5-CROWCONFax: +1 859 957 1044Email: [email protected] Site: www.crowcon.com

Rotterdam OfficeCrowcon Detection Instruments LtdVlambloem 1293068JG, RotterdamNetherlandsTel: +31 10 421 1232Fax: +31 10 421 0542Email: [email protected] Site: www.crowcon.net

Singapore OfficeCrowcon Detection Instruments LtdBlock 194 Pandan Loop#06-20 Pantech Industrial ComplexSingapore 128383Tel: +65 6745 2936Fax: +65 6745 0467Email: [email protected] Site: www.crowcon.com

Model Nimbus

Function The detection of hydrocarbon gases C 1 to C 6 + ethanol, ethylene and LPG in the LEL range by means of infrared absorption. Contact Crowcon for a full list of available gases and ranges.Dimensions 125 x 170 x 210 mm (5 x 6.8 x 8.3 ins)Weight 2.5 kg, (5.5 lbs)Construction LM25 marine grade alloy, polyester powder coatedOptical system Dual wavelength, dual detectorOptical performance Correct operation with up to 90% obscuration Dirty optics warning above 75% (configurable) Heated optics to avoid condensation.Power consumption Operating voltage: 10 to 32 V dc (nominal 24 V) – LK2 fitted (Anti Condensation Heater) Operating current: 300 mA max (7.2 W @ 24 V, 3 W @ 10 V) – LK2 not fitted Operating current: 180 mA max (4.3 W @ 24 V, 1.8 W @ 10 V)Typical output signals All levels configurable - simultaneous sink and source output 0 mA: fault 2 mA: dirty optics 4-20 mA: 0-100% LEL 24 mA: over rangeStatus light Green - normal function Orange - fault Red - detecting gas 22 other conditions indicated by flash rateCommunications Modbus RS485 serial linkFunctional testing Flow adaptor for gassingAccuracy ±2% of gas reading @ ≤ 50% LEL ±5% of gas reading @ > 50% to 100% LELResponse time <7 seconds - T90 <3 seconds – instantaneous high levels of gasTemperature range -40ºC to 65ºC (-40ºF to 149ºF)Humidity range 0 to 99% RH non-condensingEuropean Approvals ATEX II 2G EEx d IIB+Hydrogen T6and Standards Safety Cert. No: DEMKO01ATEX130838 Tamb = -40°C to 65°C EN50014, EN50018UL Approval and Class 1, Div 1, Groups B, C & DStandards Tamb = -20°C to 65°C UL 1203 (When connected to a class 2 Power Supply)Ingress protection IP66 (jets of water) IP67 (temporary submersion), NEMA 4XLight immunity Totally immune to all external light, both constant and modulated (including sunlight, white light, flashing beacons etc.)General immunity Totally immune to all catalyst poisonsElectromagnetic compatibility Gas detection standard EN50270 RF emissions EN50081-2 RF immunity EN50082-2

Suitable for use in Zone 1 or Zone 2Hazardous Areas

C h i h h h d i ifi i f hi d i h i

crowcon sensores

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