Crowcon Xgard Bright Installation, Operation And Maintenance Instructions
Gas detectors with display and relays
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- User's and operator's manual (128 pages) ,
- Installation, operation and maintenance instructions (36 pages)
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Summary of Contents for Crowcon Xgard Bright
- Page 1 Xgard Bright Gas Detectors with Display and Relays Installation, Operation and Maintenance Instructions M070068 Issue 1 January 2019...
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Page 3: Table Of Contents
Contents 1. Introduction ................1 1.1 Product overview .............. 1 1.2 Safety information ............1 1.3 Storage instructions ............2 Certification labels ............3 1.5 Product dimensions ............4 1.6 Exploded view ..............5 2. Installation ................6 2.1 Location ................6 2.2 Mounting ................. -
Page 5: Introduction
Lower Explosive Limit (LEL) of the target gas for which the detector is calibrated. XGard Bright is ATEX and IECEx Ex db IIC T6 Gb flameproof certified for use in Zone 1 or 2 hazardous areas 1.2 Safety information... -
Page 6: Storage Instructions
• XGard Bright detectors are designed to detect gases or vapours in air, and not inert or oxygen deficient atmospheres. XGard Bright oxygen detectors can measure in oxygen deficient atmospheres. -
Page 7: Certification Labels
Introduction 1.4 Certification labels ATEX and IECEx certification label Gas name and range label Warning label Diagram 1: Xgard Bright Certification Labels... -
Page 8: Product Dimensions
Introduction 1.5 Product dimensions All dimensions in millimetres Diagram 2: Xgard Bright dimension view... -
Page 9: Exploded View
Introduction 1.6 Exploded view Diagram 3: Xgard Bright exploded view... -
Page 10: Installation
The following points should be noted when locating gas detectors: • To detect gases which are lighter than air, detectors should be mounted at high level and Crowcon recommend the use of a collector cone (Part No. C01051). -
Page 11: Mounting
XGard Bright requires a dc supply of 10-30V, at up to 100mA. Ensure there is a minimum of 10V at the detector, taking into account the voltage drop due to cable resistance. -
Page 12: Electrical Connections
‘-’ and correct polarity should be observed when connecting the detector to control equipment. XGard Bright is factory set as a ‘current sink’ device unless otherwise specified when ordering. To reset to ‘current source’, open the enclosure base and move the three links on the terminal PCB from the ‘SINK' position to the ‘SOURCE’... -
Page 13: Earthing Requirements
Installation 2.5 Earthing requirements Earth terminals are provided on the outside of the XGard Bright enclosure adjacent to the top-right cable entry, and internally adjacent to the left-hand sounder out cable connector. For electrical safety it is essential that the XGard... -
Page 14: Cable Glands
Allow sufficient length of cable to the detector, fit shroud if required, pass the cable through cable gland. 1. Screw the gland Entry into the XGard Bright M20 cable Entry. Using two spanners or wrenches, hold the gland Entry in position to prevent rotation and tighten the Middle Nut until resistance is felt between the Seal and cable. - Page 15 Installation Armoured cable Backnut Compression Spigot Compression seal Middle Nut Reversible Armour Clamping Ring Armour Spigot Inner seal Entry 1. Expose the armour/braid “A” by stripping the cable's armoured / woven layer and removing the cable filler. A=15mm 2. Push the cable through the Armour Spigot.
- Page 16 2. Only cable glands ATEX and IECEx certified Exd Flameproof may be used with XGard Bright. 3. Cable glands must have a minimum ingress protection rating of IP66.
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Page 17: Fitting Accessories
Installation 2.7 Fitting accessories Collector cone (product code C01051) Aids detection of lighter than air gases such as hydrogen or methane. Includes a pipe spigot for application of bump test Spray deflector (product code C01052) For outdoor installations and sensor protection from water sprays. -
Page 18: Operation
3.1 Operation panel The XGard Bright operation panel comprises an OLED screen, a three-colour status LED and two magnetically operated Hall Effect switches. The screen displays white characters on a black background and can be viewed clearly even in bright sunlight. -
Page 19: Start Up
Operation 3.3 Start up When the XGard Bright is powered up, the unit will perform internal diagnostic checks whilst the display will show a Crowcon logo. This procedure will be displayed for about 10 seconds followed by displaying a warming up status for about 120 seconds. -
Page 20: Menu Functions
Operation 3.4 Menu functions Enter/Menu key Scroll key From the gas display screen, use the supplied magnetic wand to select the Enter/Menu key to show password screen. Enter the password: ‘0000’ to display the following menu. Select the Scroll key to change the displayed number, and the Enter/Menu key to move to the next integer. -
Page 21: Zero
Adjust the value shown to match the calibration gas concentration, to continue, long press left key ‘/OK’ to accept the calibration level. Connect the calibration cap to the XGard Bright and then connect the appropriate gas cylinder to the adapter. When the gas reading is stable press the... -
Page 22: Routine Maintenance
Ensure the associated control panel is inhibited so as to prevent false alarms Service and maintenance work should be carried out by Crowcon, an approved service centre or by suitably qualified and trained personnel. Site practices and conditions will dictate the frequency with which detectors are tested and calibrated. - Page 23 4. Fit the replacement sensor (having checked that the part number matches that stated on the detector junction box label). Take care to align the locating pins correctly with the slots in the XGard Bright enclosure. 5. Re-fit the sensor retainer having first inspected the sinter to make sure that it has not become contaminated.
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Page 24: Specifications
24Vdc (nominally), 1A 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... -
Page 25: Warranty
5. Warranty Equipment leaving our works are fully tested and/or calibrated. If within the warranty period of 1 year from despatch, the XGard Bright transmitter is proved to be defective by reason of faulty workmanship or material, we undertake at our discretion either to repair or replace it free of charge, subject to the conditions below. - Page 26 Additionally see the Warranty Returns statement attached to Warranty Claim Form. Units returned to Crowcon as faulty and are subsequently found to be ‘fault free’ or requiring service, may be subject to a handling, service and carriage charge.
- Page 27 Warranty Our postal address is: Crowcon Detection Instruments Ltd. (UK Head Office) 172 Brook Drive Milton Park Oxfordshire OX14 4SD...
- Page 28 UK Office Singapore Office Crowcon Detection Instruments Ltd Crowcon Detection Instruments Ltd 172 Brook Drive, Block 194, Pandan Loop Milton Park, #06-20 Pantech Industrial Complex Abingdon Singapore 128383 Oxfordshire Tel: + 65 6745 2936 OX14 4SD Fax: +65 6745 0467 Tel: +44 (0) 1235 557700 Email: sales@crowcon.com.sg...
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