CROUSE-HINDS SERIES

1.0 Introduction

These certified beacons have been designed for use in potentially explosive atmospheres and harsh environmental conditions. The enclosures are suitable for use offshore or onshore, where light weight combined with corrosion resistance is required.

The housing is manufactured completely from a U.V. stable, glass reinforced polyester, or either stainless steel or marine grade alloy. Stainless steel screws and mounting bracket are incorporated ensuring a totally corrosion free product.

Units can be painted to customer specification and supplied with identification labels.

2.0 General Safety Messages and Warnings

All instructions and safety messages in this manual must be followed to allow safe installation of the device. The device must only be installed and maintained by correctly trained site personnel/installers. Refer also to the installation and maintenance instructions contained in the Essential Safety Information Section 6.0.

• Before removing the cover for installation or maintenance, ensure that the power to the device is isolated.
• Following installation, test the device to ensure correct operation.
• Following installation ensure a copy of this manual is made available to all operating personnel.
• When installing the device, requirements for selection, installation and operation should be referred to e.g. IEE Wiring Regulations and the 'National Electrical Code' in North America. Additional national and/or local requirements may also apply.
• Cable termination should be in accordance with specification applying to the required application. MEDC recommends that all cables and cores should be correctly identified. Please refer to the wiring diagram in this manual (or separate diagram provided with the unit).
• The internal grounding terminal shall be used for the grounding connection and the external terminal, if available, is for a supplementary bonding connection where local codes or authorities permit or require such a connection.
• When installing the device, MEDC recommends the use of stainless-steel fasteners. Ensure that all nuts, bolts and fixings are secure.
• Refer also to the installation and maintenance instructions contained in the Essential Safety Information Section 6.0.

3.0 Installation

General

The device can either be directly mounted using the inserts moulded into the back of the enclosure (standard), or an optional backstrap can be fixed to the base of the device thus giving an optional mounting position for when direct mounting is deemed unsuitable.

For EN54-23:2010 Compliance the mounting back strap must be positioned in the horizontal plane. If the direct mount option is ordered the mounting holes must also be on the same horizontal plane as the back strap.

The 2 off threads in the base of the enclosure are designed to accept an M5 screw or bolt.

Note: For direct mounting, observe the following formula to determine the required fixing screw length: Length of screw = Thickness of mounting surface + 10mm.

The 2 off Ø8.5mm mounting holes in the optional backstrap have been designed to accept an M8 screw or bolt.

Any guard or polymer over lens fitted is optional, and may be removed/replaced as required.

Access to Terminals

See Maintenance paragraph in section 6.0 for instructions on the safe removal and replacement of the cover. Once the cover is removed, unscrew the 2 off thumbscrews and carefully lift the PCB assembly clear of the mounting pillars to gain access to the terminals.

Once termination is complete, replace the PCB assembly onto the mounting pillars and fully tighten the thumbscrews, taking care not to overtighten them. Replace the cover assembly as instructed in section 6.0.

Wiring Detail

Wiring detail shows terminals labeled 1 through 12. Terminal 1 is '+VE/LIVE IN', Terminal 2 is '+VE/LIVE OUT', Terminal 3 is '-VE/NEUTRAL IN', Terminal 4 is '-VE/NEUTRAL OUT'. Terminals 5 and 6 are for '(RELAY INITIATE OPTION)' and are labeled '+VE/LIVE' and '-VE/NEUTRAL' respectively. Terminals 7 through 12 are marked '(NOT USED)'. A note indicates 'R1 - OPTIONAL EOL RESISTOR'.

Monitoring resistors may be fitted to DC units. See Installation & Maintenance paragraph in Section 6.0.

4.0 Operation

The beacon can be powered directly or initiated by a 24Vdc relay or telephone ringing signal if requested when ordered.

The operating voltage, tube energy and flash rate of the unit is stated on the unit label. The flash rate is pre-set by MEDC prior to shipping and cannot be adjusted once set.

For EN54-23:2010 Compliance only the 24Vdc, 60 fpm version is approved (with clear or red lens).

General Arrangement

Two diagrams illustrate the general arrangement of the Xenon Beacon. The top diagram shows the configuration for wall-mounted versions, detailing mounting hole positions (M5 direct fix, Ø8.5 fixing) and overall dimensions. The bottom diagram shows the general arrangement for all versions, also detailing mounting hole positions and overall dimensions.

Wall Mounted Version Only

For EN54-23:2010 Compliance the mounting back strap must be positioned in the horizontal plane (as shown above). If the direct mount option is ordered the mounting holes must also be on the same horizontal plane as the back strap.

All Versions

A guard or polymer overLens should not be fitted on the EN54-23 version.

Note: Operation of the XB15 15 Joule unit for periods in excess of 15 mins in operational ambient temperatures exceeding +70°C may reduce the long term reliability and longevity of the product.

Also see Section 6.0 for special conditions for safe use.

5.0 Maintenance

During the working life of the unit, it should require little or no maintenance. GRP will resist attack by most acids, alkalis and chemicals and is as resistant to concentrated acids and alkalis as most metal products. However, if abnormal or unusual environmental conditions occur due to plant damage or accident etc., then visual inspection is recommended.

If the unit requires cleaning, then only clean exterior with a damp cloth to avoid electro-static charge build up. Replacement of the xenon tube (see below) can be carried out by competent site personnel. Other repairs should be undertaken by returning the unit to MEDC.

If a unit fault should occur, then the unit can be repaired by MEDC. All parts of the unit are replaceable. If you acquired a significant quantity of units, then it is recommended that spares are also made available. Please discuss your requirements with the Technical Sales Engineers at MEDC.

During maintenance, if the cover/lens assembly grease needs to be re-applied, a PFPE (Perfluoropolyether) based grease such as Krytox GPL203 by DuPont or Perfluorolube 22/6 by Performance Fluids Ltd. should be used to prevent damage to the O-ring.

Removing / Replacing Xenon Tube

See Maintenance paragraph in section 6.0 for instructions on the safe removal and replacement of the cover. Once the cover is removed, the replacement tube can be fitted (see xenon tube installation sheet, which is supplied with the replacement tubes). Once the new tube has been correctly fitted, replace the cover assembly as instructed in section 6.0.

Also see Section 6.0 for special conditions for safe use.

6.0 Essential Certification & Safety Information

THIS IS A CERTIFIED ATEX/IECEx CONTROLLED SECTION AND MUST NOT BE CHANGED WITHOUT AUTHORISATION.

Special Conditions for Safe Use

• Painting and other surface finishes, other than those applied by the manufacturer, are not permitted.
• In order to maintain the dust tight integrity of the enclosures (IP6X), the threads of cable entry devices and stopping plugs shall be sealed in accordance with the applicable code of practice for flameproof installation.
• For Type XB15 DC units, monitoring resistors must be securely fitted to the terminal block and formed to keep the body in free air, away from field wiring and the enclosure body. Maximum total power dissipation will be limited to 2W. Components must have a rated power at least three times higher than the power they will dissipate.

General Messages and Safety Warnings

• To reduce the risk of ignition of hazardous atmospheres and shock, do not apply power to the device until installation has been completed and the device is fully sealed and secured.
• To reduce the risk of ignition of hazardous atmospheres and shock, keep device tightly closed when the circuit is energised.
• Ensure that only the correct listed or certified cable glands are used, and that the assembly is shrouded and correctly earthed.
• Ensure that only the correct listed or certified stopping plugs are used to blank off unused gland entry points in accordance with EN/IEC60079-14 clauses 16.3, 16.4 & 16.5 and that the NEMA/IP rating of the unit is maintained.
• Maintain the IP rating of the unit by sealing glands in accordance with gland certification / manufacturer's instructions (i.e. use of a sealing washer or specific compound.)
• When the unit is used in dust atmospheres, the cable entries or blanking plugs used shall be sealed to maintain the IP6X rating, in accordance with the applicable installation codes.
• Warning: Do not open when an explosive atmosphere is present.
• Potential Electrostatic Charging Hazard, protect from direct airflow from exhaust ducts and the like which may cause a charge transfer. If the unit requires cleaning, only clean exterior with a damp cloth to avoid electrostatic charge build-up. Ensure the equipment is correctly earthed.

Installation & Maintenance

Removing / Replacing the Cover

Unscrew the grub screw (2.0mm A/F hexagon key) in the flange of the cover 3 full turns (Do not fully unscrew). Unscrew and remove the cover and lens assembly using the spanner supplied (GRP units) to gain access to the inside of the unit.

Before replacing the cover inspect the threaded flame path for any signs of damage. Replace the cover assembly, ensuring the cover is fully screwed down. There should be a maximum gap of 0.2mm between the faces of the cover and enclosure to ensure o-ring compression. Ensure the cover seal is correctly seated in its groove during re-assembly. Re-tighten the grub screw (2.0mm A/F hexagon key) in the cover flange to secure the cover.

Certification/Approvals

IECEx Certification

Certified to IEC60079-0, IEC60079-1 & IEC60079-31

Ex d unit (IEC certification No. IECEx BAS 05.0048X)

Ex db IIC T Gb

Ex tb IIIC T Db IP6X

The IECEx certificate and product label carry the IECEx equipment protection level marking:

Gb

Db

Where Gb signifies suitability for use in a Zone 1 surface industries area in the presence of gas.

Where Db signifies suitability for use in a Zone 21 surface industries area in the presence of dust.

ATEX Units

Certified to EN60079-0, EN60079-1 & EN60079-31

Unit Ex d (ATEX certification No. Baseefa04ATEX0009X)

Ex db IIC T Gb

Ex tb IIIC T Db IP6X

The ATEX certificate and product label carry the ATEX group and category marking:

Ex II 2 GD

Where:

• Ex: Signifies compliance with ATEX
• II: Signifies suitability for use in surface industries.
• 2: Signifies suitability for use in a zone 1 area
• G: Signifies suitability for use in the presence of gases
• D: Signifies suitability for use in the presence of dust

7.0 Non Ex Certification Information

EN54-23:2010 Visual Alarm Device – Beacon XB15 (24Vdc units only)

Rating: 21.6v - 26.4v DC Absolute. Amps 0.99

Environment Type: B Outdoor applications

IP code: (IP33C) to BS EN 60529:1992

The Red lens Beacon is supplied with the following LPCB markings.

The White lens Beacon is supplied with the following LPCB markings.

This signifies unit compliance to the relevant European directives, in this case 89/106/EEC, along with the name and number of the notified body issuing the certificate of conformity.

These units also have the following approvals:

• Main Harmonics (AC) to EN61000-6-3:2007 / IEC61000-3-2:2006
• Conducted Emissions (DC) to EN61000-6-3:2007
• Radiated Field Immunity (DC and AC) to EN61000-6-2:2005 / IEC61000-4-3:2002 + A1:2002
• Electrical Fast Transients/Bursts (DC and AC) to EN61000-6-2:2005 / IEC61000-4-4:2004
• Surge Immunity (DC and AC) to EN61000-6-2:2005 / IEC61000-4-5:1995 + A1:2000
• Dips and Interruptions (AC) to EN61000-6-2:2005 / IEC61000-4-11:2004
• Ingress protection (IP66 & 67) to BS EN 60529:92

EN54-23 Coverage Data & Explanation of Terminology

Ceiling Mounted Devices - C-x-y

C - Ceiling Mounted Device

Diagram illustrating ceiling-mounted coverage. 'C' denotes a Ceiling Mounted Device. 'x' represents the maximum mounting height (e.g., 3, 6, or 9m). 'y' represents the diameter in meters of the cylindrical volume covered (to a minimum of 0.4 lux) at the specified height. An example is given: C-3-32 corresponds to a ceiling mounted device giving a coverage cylindrical volume of 32 m², when mounted at 3 m. Note: The projected space sits within the cylindrical volume and ensures that all areas meet the required illumination of 0.4 lux.

Tip: To convert the coverage diameter 'y' to the width of a square room, use the formula: Width of square room = y/1.414 m.

Wall Mounted Devices - W-x-y

W - Wall Mounted Device

Diagram illustrating wall-mounted coverage. 'W' denotes a Wall Mounted Device. 'x' represents the maximum mounting height in meters (minimum 2.4m). 'y' represents the width in meters of the square volume covered (to a minimum of 0.4 lux) at height 'x'. An example is given: W-8-13 corresponds to a wall mounted device giving a coverage cuboid volume of 8m x 13m x 13m, when mounted at a height of 8m. Tip: If the area to be covered is not square, use the larger of either the length or width to ensure that the whole area is covered.

MEDC VAD Coverage Data

Further information is available via the Code of practice (CoP 0001).

CoP 0001 provides detailed guidance and recommendations on the planning, design, installation, commissioning and maintenance of VAD's. A copy is available at the following website: http://www.redbooklive.com/pdf/CoP-0001-1-0.pdf

8.0 Functional Safety

Introduction

The XB15/XB15M Beacon has been designed for use in potentially explosive atmospheres and harsh environmental conditions. The glass reinforced polyester enclosures are suitable for use offshore or onshore, where light weight combined with corrosion resistance is required.

The safety function of the Beacon is to provide an intermittent spherical visual warning light when the correct voltage is applied to the unit. The DC versions of the Beacon are designed to operate on a supply voltage tolerance of +/- 20%; the AC versions of the beacon are designed to operate on a supply voltage tolerance of +/- 10%.

The telephone initiate versions of the Beacon are not included in this safety manual.

Under No fault (Normal) Operating conditions the XB15/XB15M Beacon will provide a spherical visual warning light when required by the system.

Under fault conditions the failure mode of the Beacon is a failure to provide a spherical visual warning light. For the failure rate associated with this failure mode please refer to the table below.

Assessment of Functional Safety – XB15/XB15M

As per Route 2H clause 7.4.4.3.1 of IEC61508-2; a hardware fault tolerance of 1 for a specified safety function for SIL 3 unless the conditions in clause 7.4.4.3.2 are met, must apply. Clause 7.4.4.3.2 indicates that the hardware fault tolerance can be reduced if the sum of all dangerous failures does not exceed 1% of the target failure measure. This requires for the PFD value to be <1.00E-05, therefore in failing to meet this requirement the device is limited to SIL 2 with HFT = 0.

SIL Conditions of Safe Use:

The validity of the certified base data in any specific user application is conditional on the user complying with the following conditions:

1. The user shall comply with the requirements given in the manufacturer's user documentation (referred to in Table 1 above) in regard to all relevant functional safety aspects such as application of use, installation, operation, maintenance, proof tests, maximum ratings, environmental conditions, repair, etc.
2. Selection of this equipment for use in safety functions and the installation, configuration, overall validation, maintenance, and repair shall only be carried out by competent personnel, observing all the manufacturer's conditions and recommendations in the user documentation.
3. All information associated with any field failures of this product should be collected under a dependability management process (e.g., IEC 60300-3-2) and reported to the manufacturer.
4. The unit should be tested at regular intervals to identify any malfunctions; in accordance with the safety manual TM250, TM322 and TM258.

Disclaimer of Warranties and Limitation of Liability

The information, recommendations, descriptions and safety notations in this document are based on Eaton Corporation's ("Eaton") experience and judgment and may not cover all contingencies. If further information is required, an Eaton sales office should be consulted. Sale of the product shown in this literature is subject to the terms and conditions outlined in appropriate Eaton selling policies or other contractual agreement between Eaton and the purchaser.

THERE ARE NO UNDERSTANDINGS, AGREEMENTS, WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, OTHER THAN THOSE SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES. ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON. THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES.

In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to damage or loss of use of equipment, plant or power system, cost of capital, loss of power, additional expenses in the use of existing power facilities, or claims against the purchaser or user by its customers resulting from the use of the information, recommendations and descriptions contained herein. The information contained in this manual is subject to change without notice.