CROWCON O2 FIXED GAS DETECTOR, OXYGEN, 0-25% VOL, M20 SIDE ENTRY, ATEX APPROVAL

TXgard-IS+ is a Intrinsically Safe (I.S.) toxic and oxygen gas detector with local LCD display. A very wide choice of sensors are available for use in a variety of applications. TXgard-IS+ is ATEX certified for use in Zone 0,1 or 2 hazardous areas and also UL and cUL certified for use in Division 1 or 2 hazardous areas.

Non-intrusive calibration

• Calibration can be performed locally without the need for hot work permits – minimises operational down-time
• Local display and buttons enable calibration without opening the junction box

Flexible output options

• 4-20mA current sink – works with a wide selection of control panels
• 2 wire format

Rugged and reliable

• Made from tough carbon loaded nylon
• Ingress protection to IP65 as standard

Low cost of ownership

• Non-intrusive one man calibration – easy to operate and maintain
• Long life sensors – keeps interuption to on-site activity to a minimum
• Simple parts replacement

Wide range of sensors

• Extensive range of electrochemical sensors for toxic gases and oxygen

h3>Specifications

Size	160 x 123 x 92mm (6.3 x 4.8 x 4.5ins)
Weight	0.7kg (1.5lbs)
Ingress protection	IP65
Enclosure material	Junction box: Carbon loaded nylon Sensor housing: ABD Plastic
Power	8-32Vdc, 4-20mA loop-powered
Cable entries	1 x M20 or 1/2” NPT with adaptor
Operating temperature	-20°C to +55°C (-4°F to 132°F) *
Humidity	15 to 90% RH non-condensing
Display	2-Line, 16 character LCD
Calibration method	Via push-buttons
Electrical output	2 wire 4-20mA sink
Terminals	Suitable for up to 2.5mm2 cable
Sensor type	Electrochemical
Repeatability	+/- 2% FSD typically
Zero drift	+/- 2% FSD, 6 months typically
Response time	Contact Crowcon for a full list of sensor response times
Performance	Tested in accordance with EN60079-29-1
Hazardous area zones	Zone 0, 1 or 2 Division 1 or 2 (when connected via an isolation device)
Approvals	Ex II 1 G Ex ia IIC T4 (-40°C to +65°C) Exia IIC T4 Gb Tamb -20°C to +55°C UL Class I, groups A, B, C and D
EMC compliance	EN 50270, FCC: CFR 47 Part 15, ICES-003

* Figures shown exclude the sensors – Please contact Crowcon for a full list of sensor operating temperatures

 

Gases and Ranges

Gas	Range Available
Ammonia (NH3)	50, 100, 1000ppm
Chlorine (Cl2)	5, 10, 20ppm
Carbon monoxide (CO)	250, 500ppm
Chlorine dioxide (ClO2)	1ppm
Hydrogen (H2)	2000ppm, 50% LEL, 100% LEL
Hydrogen cyanide (HCN)	25ppm
Hydrogen sulphide (H2S)	25, 50, 100, 200ppm
Hydrogen fluoride (HF)	10ppm
Nitrogen dioxide (NO2)	10ppm
Oxygen (O2)	25% vol.
Ozone (O3)	1ppm
Phosgene (COCl2)	1ppm
Phosphine (PH3)	2ppm
Sulphur dioxide (SO2)	10, 20, 30ppm

About CROWCON

Crowcon provides gas detectors to fit your needs. Portable or fixed, Single or Multigas, Crowcon detectors will warn you of gaseous hazards before it's too late. Protecting people and the environment from gas hazards.

Xgard Fixed Point Gas Detector

The Xgard range is a comprehensive selection of fixed point gas detectors that meet the diverse requirements for gas detection in industries throughout the world. This includes many water treatment, oil and gas, power, research facility and manufacturing installations.

Intrinsically Safe (I.S.) or Flameproof (Exd) versions are available, with case options comprising high-grade alloy, stainless steel or chemically resistant GRN polymer. Certifications include IECEx, ATEX, UL and GOST-R.

Low cost of ownership

• Designed for easy installation and maintenance - keeps costs down
• Three junction box options - designed to make replacement of sensors and sinters extremely simple. Spare sensors simply plug-in
• Many spare parts are common to all Xgard models - keeps spares holding requirements to a minimum

Flexible installation options

• Designed for either wall or ceiling mounting - no need for additional brackets
• Can accommodate M20, 1/2" NPT or 3/4" NPT cable glands - suits all site requirements
• High temperature models are available for hot environments (up to 150^oc)
• Accessories are available for duct mounting and sampling applications as well as remote gassing - simple sensor checking

Wide range of sensors

• 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

• 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 - designed to operate even in the harshest environments
• 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)

Contact [email protected] for more information.

Specifications

	Type 1	Type 2	Type 3	Type 4	Type 5	Type 6
Size	156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches)	195 x 166 x 111mm (7.6 x 6.5 x 4.3 inches)	156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches)
Weight	Nylon: 0.5 kgAlloy: 1kg (2.2lbs)316 S/S: 3.1kg (6.8lbs)	Aluminium: 1kg (2.2lbs)Stainless steel: 3.1kg (6.8lbs)	1.5 kg (3.3lbs)	Aluminium: 1kg (2.2lbs) Stainless steel: 3.1kg (6.8lbs)
Enclosure material	ATEX certified: Glass reinforced nylon or 316 S/SUL Certified: Aluminium or 316 S/S	Aluminium or 316 Stainless Steel	Aluminium	Aluminium or 316 Stainless Steel
Ingress protection	IP65	IP54	IP65
Cable entries	1 x M20, 1/2 “NPT or 3/4 NPT* on right-side
Terminations	0.5 to 2.5mm2
Sensor type	Electrochemical	Catalytic bead	316 S/S sensor housing with catalytic beads	Catalytic bead	Thermal conductivity
Operating temperature	-40 to +50 °C (-40 to 122 °F) (sensor dependant)	-20 to +50°C (-4 to 122°F)	-40 to +80°C  (-40 to 176°F)	-20 to +150°C (-4 to 302°F)	-40 to +55°C (-40 to 131°F)	+10 to +55°C (50 to 301°F)
Humidity	10 to 95% RH non-condensing	0-99% RH non-condensing	0-90% RH
Repeatability Zero drift	<2% FSD (Typical)<2% FSD per Month (Typical)
Response time	T90 <15s OxygenT90 <30s to 120s Toxic(sensor dependant)	T90 <15s (Typical)
Operating voltage	8-30V dc	2.0V dc +/- 0.1V (Typical)	10-30V dc
Power requirements	24mA maximum	300mA (Typical)	50mA at 24V dc 1.2W
Electrical output	2- wire 4-20mA (current sink)	3- wire mV bridgeTypical signal: 12-15mV/ %LEL CH4	3- wire mV bridgeTypical signal: >10mV/%LEL CH4	3- wire 4-20mA (current sink or source)
Approvals	ATEX: II 1 G Exia IIC T4 Ga (Tamb -40 to +55°C) UL/cUL: Class I, Div. 1 Groups A, B, C, D IECEx GOST-R	ATEX: II 2GD Exd IIC T6 Gb (Tamb -40 to +50°C) UL: Class I, Div. 1  Groups B, C, D IECEx GOST-R	ATEX: II 2 GD Exd IIC T4 Gb (Tamb -40 to +80°C) Exd IIC T6 Gb (Tamb -40 to +50°C) Ex tb IIIC T180°C Db UL: Class I, Div. 1  Groups B, C, D IECEx GOST-R	ATEX: II 2 GDExd IIC T3 Gb (Tamb -40 to +150°C)	ATEX: II 2 GDExd IIC T6 Gb (Tamb -40 to +50°C) Exd IIC T4 Gb (Tamb -40 to +80°C) Ex tb IIIC T180°C Db UL: Class I, Div. 1 Groups B, C, D IECEx GOST-R
EMC compliance	EN 50270       FCC Part 15    ICES- 003

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

About CROWCON

Crowcon provides gas detectors to fit your needs. Portable or fixed, Single or Multigas, Crowcon detectors will warn you of gaseous hazards before it's too late. Protecting people and the environment from gas hazards.

Crowcon Xgard Fixed Point Gas Detector

The Xgard range is a comprehensive selection of fixed point gas detectors that meet the diverse requirements for gas detection in industries throughout the world. This includes many water treatment, oil and gas, power, research facility and manufacturing installations.

Overview

Intrinsically Safe (I.S.) or Flameproof (Exd) versions are available, with case options comprising high-grade alloy, stainless steel or chemically resistant GRN polymer. Certifications include IECEx, ATEX, UL and GOST-R.

Low cost of ownership

• Designed for easy installation and maintenance - keeps costs down
• Three junction box options - designed to make replacement of sensors and sinters extremely simple. Spare sensors simply plug-in
• Many spare parts are common to all Xgard models - keeps spares holding requirements to a minimum

Flexible installation options

• Designed for either wall or ceiling mounting - no need for additional brackets
• Can accommodate M20, 1/2" NPT or 3/4" NPT cable glands - suits all site requirements
• High temperature models are available for hot environments (up to 150^oc)
• Accessories are available for duct mounting and sampling applications as well as remote gassing - simple sensor checking

Wide range of sensors

• 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

• 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 - designed to operate even in the harshest environments
• 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)

Specifications

	Type 1	Type 2	Type 3	Type 4	Type 5	Type 6
Size	156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches)	195 x 166 x 111mm (7.6 x 6.5 x 4.3 inches)	156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches)
Weight	Nylon: 0.5 kgAlloy: 1kg (2.2lbs)316 S/S: 3.1kg (6.8lbs)	Aluminium: 1kg (2.2lbs)Stainless steel: 3.1kg (6.8lbs)	1.5 kg (3.3lbs)	Aluminium: 1kg (2.2lbs) Stainless steel: 3.1kg (6.8lbs)
Enclosure material	ATEX certified: Glass reinforced nylon or 316 S/SUL Certified: Aluminium or 316 S/S	Aluminium or 316 Stainless Steel	Aluminium	Aluminium or 316 Stainless Steel
Ingress protection	IP65	IP54	IP65
Cable entries	1 x M20, 1/2 “NPT or 3/4 NPT* on right-side
Terminations	0.5 to 2.5mm2
Sensor type	Electrochemical	Catalytic bead	316 S/S sensor housing with catalytic beads	Catalytic bead	Thermal conductivity
Operating temperature	-40 to +50 °C (-40 to 122 °F) (sensor dependant)	-20 to +50°C (-4 to 122°F)	-40 to +80°C  (-40 to 176°F)	-20 to +150°C (-4 to 302°F)	-40 to +55°C (-40 to 131°F)	+10 to +55°C (50 to 301°F)
Humidity	10 to 95% RH non-condensing	0-99% RH non-condensing	0-90% RH
Repeatability Zero drift	<2% FSD (Typical)<2% FSD per Month (Typical)
Response time	T90 <15s OxygenT90 <30s to 120s Toxic(sensor dependant)	T90 <15s (Typical)
Operating voltage	8-30V dc	2.0V dc +/- 0.1V (Typical)	10-30V dc
Power requirements	24mA maximum	300mA (Typical)	50mA at 24V dc 1.2W
Electrical output	2- wire 4-20mA (current sink)	3- wire mV bridgeTypical signal: 12-15mV/ %LEL CH4	3- wire mV bridgeTypical signal: >10mV/%LEL CH4	3- wire 4-20mA (current sink or source)
Approvals	ATEX: II 1 G Exia IIC T4 Ga (Tamb -40 to +55°C) UL/cUL: Class I, Div. 1 Groups A, B, C, D IECEx GOST-R	ATEX: II 2GD Exd IIC T6 Gb (Tamb -40 to +50°C) UL: Class I, Div. 1  Groups B, C, D IECEx GOST-R	ATEX: II 2 GD Exd IIC T4 Gb (Tamb -40 to +80°C) Exd IIC T6 Gb (Tamb -40 to +50°C) Ex tb IIIC T180°C Db UL: Class I, Div. 1  Groups B, C, D IECEx GOST-R	ATEX: II 2 GDExd IIC T3 Gb (Tamb -40 to +150°C)	ATEX: II 2 GDExd IIC T6 Gb (Tamb -40 to +50°C) Exd IIC T4 Gb (Tamb -40 to +80°C) Ex tb IIIC T180°C Db UL: Class I, Div. 1 Groups B, C, D IECEx GOST-R
EMC compliance	EN 50270       FCC Part 15    ICES- 003

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

About CROWCON

Crowcon provides gas detectors to fit your needs. Portable or fixed, Single or Multigas, Crowcon detectors will warn you of gaseous hazards before it's too late. Protecting people and the environment from gas hazards.

Crowncon Xgard Bright

 

This flameproof (Exd) detector is housed within our high-grade aluminium alloy case. Certifications include gas and dust approvals for ATEX and IECEX with UL gas certification in progress.

Versatile:

• Flammable and toxic gas detection and oxygen monitoring – Reducing training requirements across sites
• Choice of M20 or ½”NPT connection – Supports multiple site requirements
• Low power requirement (~3W max) – Reducing site-wide power consumption
• IP65 or IP66 rating (with weatherproof cap) – Allows use in areas subject to regular wash downs or in exposed environments

Ease of installation and operation:

• Addressable – Drastically reduces the amount of cabling needed for multi-point installations
• Local display – Delivers gas level indication, status and supports maintenance routines
• Non-intrusive calibration – Removes the need to open the cover for calibration
• Plug in type terminal blocks: Making wiring quick and easy reducing installation costs
• Configuration via magnetic key – Reducing the amount of time operators spend in a hazardous area

specifications

Size: 156 x 166 x 109mm (6.1 x 6.5 x 4.3inch)
Cable Entry: 2x M20 (stopping plug fitted to left-side entry)
Power: 10-30Vdc. 3W max
Electrical Output: 4-20mA current sink or source
RS-485 Modbus RTU
HART (Optional)
Weight Aluminium alloy: 1kg (2.2lbs)
Enclosure Material: ADC 12 aluminium alloy
Relay Alarm 1, Alarm 2, Fault
SPST contacts rated 1A 30Vdc

Sounder Out: 24Vdc (nominally), 250mA maximum load
Operating Temperature :-40°C to +70°C (-40°F to 158°F)
Note: sensor operating temperatures vary widely.

Refer to the sensor module datasheet or contact

Crowcon for specific sensor data.

Humidity: 0 to 95% RH, non-condensing
Repeatability: +/- 2% FSD
Zero drift: +/- 2% FSD per year maximum
Ingress protection: IP65 (IP66 with weatherproof cap)
Approvals: ATEX and IECExEx II 2 G Ex db IIC T6 Gb
Ex tb IIIC T80ᶜ Db

II 2 G Ex db IIC T6 Gb

II 2 D Ex tb IIIC T80ᶜ Db

Certificate numbers:

TUV 16 ATEX 7908 X

IECEx TUR16.0035 X

EMC Compliance: EN50270: 2015
Standards:
EN60079-0 :2012 + A11:2013
EN60079-1 :2014
IEC60079-0 :2011 Edition 6
IEC60079-1 :2014 Edition 7
Zones: Certified for use in Zone 1 and Zone 2 areas