Hydrosphere UK Ltd Complete Products & Services Catalogue

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VRB-25 MARINE ROTATING BEACON The VRB-25 is a powerful, reliable and compact marine rotating beacon suitable for ranges from 15 to 22 nautical miles. Six or eight equally-spaced fresnel lenses rotate around a stationary lamp of up to 100 Watts, generating six or eight discrete pencil beams. Individual beams can be coloured or blanked off to generate grouped characters. Powerful Optics The heart of the VRB-25 is a highperformance acrylic fresnel lens designed by Vega to maximise the useful output from industry-standard pre focused tungsten-halogen marine signal lamps. Lenses are held on all edges in an accurately-machined cage to ensure precision alignment. All six beams are consistent in peak intensity to within 5% of the average. Every beacon is individually tested for peak and effective intensities, the consistency of intensity between beams, and rotational speed. Factory tests are performed in a computer-controlled zero-range photometric facility. Reliable Mechanicals The lens carousel is rotated by a direct-drive electronically-commutated brushless pancake motor of 280mm diameter,designed by Vega specially for the VRB-25. This motor provides plenty of torque while consuming only 1-2 watts of energy. Two large, heavy-duty, fully-sealed ball races (packed with low-temperature grease) are the only moving parts, and these can be expected to operate for at least 20 years without attention. Intelligent Electronics A versatile micro-processor based electronic controller is housed in a metal capsule sealed with O’rings. This controls the lampchanger, solar switch and motor drive. One of the 248 speeds from 0.5-15.9 rpm can be selected by adjusting two hex switches. The speed will be maintained to within ±2%. External monitoring functions are available, and the VRB-25 interfaces readily to the VegaWeb monitoring system. To ensure maximum lamp life, consistent output intensity and minimum energy consumption, the lamp voltage is regulated using Pulse-Width-Modulation. Even if the input voltage ranges from 11-20 Volts (as in an unregulated solarpowered installation) the RMS voltage at the lamp will never exceed 12VDC. High-Wattage Lampchanger The VRB-25 is equipped with a 6-position VLC-153 lampchanger. Vega has been building lampchangers for lamps up to 250 Watts for 20 years and the VLC-153 is one of the latest design. EASY MAINTENANCE A small removable hatch gives instant access for lamp replacement. The electronics module can be removed from the base by sliding two latches. All external fasteners are captive. The entire Glazing Assembly lifts off after twisting eight latches. Lenses and glazing are made of acrylic and have a rated life of 5-7 years. Secure Latches The VRB-25 is supplied with captive latches. These latches do not require special tools for their operation. If secured access to the beacon is required, special forms of latches are available that will require special tools to operate. The use of these latches can be suffi cient to discourage unauthorised personnel from opening the beacon. SPECIFICATIONS Optics Lenses Colours Service Life Motor Drive Type Current Drain Rotation Speeds Six or eight, optical grade acrylic, 178.5mm focal length Clear, Red (32%T), Green(34%T), Blanking Panel (0%T) Approximately 7 years 30-pole brushless three-phase direct drive 90mA continuous typical at 1 rpm 248 user-selectable speeds in range 0.5 to 15.9 rpm
Mfg by Vega Industries <strong>Ltd</strong> H eriot D riv e , P orirua , N Z C o n tra c t N o D T C G 2 3 -9 3 -C -E 4 3 0 1 2 Speed Control Speed Variation Bearings PID Controller, optical feed-back with 1200 pulses/rotation Less than 2% variation. Automatic torque compensation Two deep groove sealed ball races, 62mm diameter DIMENSIONS Electronics Power Supply Controller Lamp Voltage Current Lamps Lampchanger Photocell Monitoring Nominal 12VDC, 11-30 VDC acceptable Vega CALC-20B (motor driver, lamp changer controller) Regulated to a maximum of 12V rms by PWM 125mA for CALC-20B 12VDC pre focused vertical fi lament to 100W Vega VLC-153 automatic 6-position, escapement type Built in, sensor compatible with USCG Type LDR Fixed duration contact-closure twice per rotatation Top View ø485mm 1033mm Environmental Temperature Salt Humidity Wind Cooling Rated for continuous operation -35°C to +60°C ambient Rated for continuous exposure to salt air and sea water spray Rated for humidity 0-100%, driving rain at 45° from vertical Rated to withstand winds to 100kt Natural radiation only, no cooling fan or ventilation required Side View 411mm CALC-20 V R B -2 5 670mm Materials Base Glazing Glazing life Paint Finish DT 5008 grade Aluminium, anodised to 25 microns Optical grade acrylic Approximately 7 years Epoxy primer, 2-pot polyurethane gloss paint on exterior metal surfaces Bottom View Breather 200mm (7-7/8") PCD
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data buoy platforms moorings naviga
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trusted by the industry Our product
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permanent marking signage Maintenan
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fog signals & detectors Visibility
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adar reflectors A range of active-p
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1.24m diameter range Available with
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jetty masts & power systems Folding
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guides the way VEGA LIGHTS MARINE A
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VLL-43 LED LINEAR LEAD LIGHT A powe
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guides the way VLB-2 LED MARINE BEA
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guides the way VLB-67 LED MARINE BE
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Program Capability • 246 flash ch
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• Programmable low voltage cutoff
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Approved for use as Class A, B, and
Page 75 and 76: guides the way VLB-44 LED MARINE BE
Page 77 and 78: Bird Spikes Sealing Stainless steel
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Page 81 and 82: guides the way VRL-91 UNI-MEGA HIGH
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Page 85 and 86: guides the way VLS-46 LED SECTOR PR
Page 87 and 88: • Separate day and night intensit
Page 89 and 90: guides the way VSL-73 PRECISION ALL
Page 91 and 92: INFORMATION REQUIRED FOR A VSL-73 1
Page 93 and 94: guides the way PEL SECTOR LIGHTS PR
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Page 99 and 100: PEL-3 SECTOR LIGHTS • Invented in
Page 101 and 102: PEL-3 Peak Intensities in White, Re
Page 103 and 104: MANUFACTURED BY VEGA INDUSTRIES LTD
Page 105 and 106: OSCILLATING BOUNDARY AND SECTOR ANG
Page 107 and 108: CALC-2001 & LOGIC INVERTER The CALC
Page 109 and 110: SINGLE PEL SECTOR LIGHT APPLICATION
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Page 113 and 114: guides the way VRL-74 LED RANGE LIG
Page 115 and 116: EASY PROGRAMMING The VRL-74 support
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Page 121 and 122: guides the way VLB-92 OMNI-MEGA LON
Page 123 and 124: SPECIFICATIONS Optical Light Source
Page 125: guides the way VRB-25 MARINE ROTATI
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Page 133 and 134: All Mobilis data buoys comprise a r
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Page 159 and 160: guides the way VSU-29 GPS SYNC UNIT
Page 161 and 162: guides the way VEGAWEB MONITORING S
Page 163 and 164: Use of the VegaWeb monitoring syste
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Hydrosphere UK Ltd Complete Products & Services Catalogue

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