Table of Contents
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MK2
ULTRA HIGH INTENSITY SEARCHLIGHT
OPERATOR AND ORGANIZATIONAL MAINTENANCE MANUAL
LIMITED
Somerset House I 11 York Street I Randburg I Johannesburg I 2194 I South Africa
All Correspondence to: PO Box 78800 I Sandton I 2146 I South Africa
Tel: +27 11 326 1167 I Fax: +27 11 326 1165
e-mail: info@megaray.com I web: www.megaray.com
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Table of Contents
Summary of Contents for Megaray MR175mk2
- Page 1 Somerset House I 11 York Street I Randburg I Johannesburg I 2194 I South Africa All Correspondence to: PO Box 78800 I Sandton I 2146 I South Africa Tel: +27 11 326 1167 I Fax: +27 11 326 1165 e-mail: info@megaray.com I web: www.megaray.com...
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Page 2: Table Of Contents
Attachment for Carry Strap Hook Figure 10 Picatinny Rail Used to Mount a Night Vision Device or Similar Figure 11 Connecting the Power Cable to the Megaray from the Battery Vest Figure 12 External Power Cable Being Connected to Searchlight Figure 13... -
Page 3: Safety Summary
SAFETY SUMMARY WARNING CAUTION NOTE Highlights an essential operation or maintenance procedure, which, if not strictly observed, could result in injury. Highlights an essential operation or maintenance procedure, which, if not strictly adhered to, could result in damage to, or destruction of, equipment or loss of mission effectiveness. Highlights an essential operation or maintenance procedure that deserves additional emphasis, but is not considered essential to the protection of personnel or equipment. - Page 4 Personnel working in close proximity to an operating Megaray should avoid pointing the beam onto exposed skin. Never point the Megaray beam at anyone, or look into the output lens of the beam whether in the visible mode or with IR filters. Permanent eye damage and blindness could result.
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Page 5: Chapter 1 - Introduction
Megaray 175mk2 portable ultra high intensity searchlight (hereafter referred to as Megaray). The manual will cover the Megaray, all ancillary equipment associated with the standard kit and optional accessories that may be used with the Megaray. 1.2 LIST OF ABBREVIATIONS... -
Page 6: Megaray Standard Kit
1.4 MEGARAY STANDARD KIT The Megaray system consists of the following standard components (Figure 2) Item Part Number Picture Description MR - SS Shoulder strap MR - 175SC Shipping and storage soft case MR – 175MK2 Megaray light unit LB - 175... -
Page 7: Megaray Portable Searchlight System
1.5 MEGARAY PORTABLE SEARCHLIGHT SYSTEM 1.5.1 Megaray Light Unit Lens housing “Battery Low” LED Picatinny rail “Over - Temperature” LED Air vents “Power On” LED Power connection Mode selector switch 10 Main “ON/OFF” switch Bottom heat sink Figure 3. Megaray Light Unit... -
Page 8: Battery Vest
(Figure 6). The battery remains in the battery vest during recharging. The same cable and connector used to connect the Megaray light unit to the battery vest is used to connect to the battery charger (Figure 7). -
Page 9: Figure 6 Battery Vest
The Lithium polymer battery is housed in the battery pouch on the rear of the battery vest. The battery remains in the battery vest during recharging. The Power cable (Figure.7 ) connects the Battery vest to the Megaray and the Battery Charger. Battery pouch in which... -
Page 10: Battery Charger
1.7.1 Power Cable The power cable for connecting the Megaray to the battery vest is situated on the right hand side (in the carrying position) of the battery vest, in front of the battery pouch. When the battery vest requires recharging, the same power cable is used to connect to the Megaray battery charger. -
Page 11: Carry Strap
1.8 CARRY STRAP An adjustable shoulder carry strap attaches with the carry strap hooks on the Megaray MR175 MK2, as illustrated below (Figure 9). Figure 9. Attachment for Carry Strap Hook... -
Page 12: Picatinny Rail
1.9 PICATINNY RAIL A picatinny universal 6 inch rail. The Picatinny rail allows other equipment to be mounted to the Megaray (Figure. 10). Figure 10. Picatinny Rail Used to Mount a Night Vision Device or Similar... -
Page 13: Chapter 2 - Operating Instructions
This method requires a little practice, but once mastered, enables the operator to connect the Megaray light unit power cable to its battery vest swiftly and without having to look at the connectors. This method comes in handy when Megaray needs to be connected in the dark. -
Page 14: Figure 12 External Power Cable Being Connected To Searchlight
The optional extension power cable is used to connect the light to an external power source. The Megaray light unit is equipped with an integral switch mode power supply enabling the unit to function on any DC voltage input between 12VDC and 30VDC. It automatically adjusts itself to the input voltage. -
Page 15: Switching The Unit "On
2.3 SWITCHING THE UNIT “ON” The Megaray is equipped with an ON/OFF switch located on the upper front part of the pistol- type handgrip (Figure 13). The light comes on when the switch is pressed once and goes off when the switch is pressed again. When the Megaray is switched on, the red “Power ON” LED (Figure 14) situated inside the label area of the light unit glows indicating that the power supply module and electronic circuit are functioning correctly. -
Page 16: Light Mode Selection
2.4 LIGHT MODE SELECTION The Megaray has two different light modes, which are selected using the mode selector switch. The mode selector switch is situated at the bottom front of the unit (Figure 15). The following modes are selectable: a. Strobe: In this mode the light beam flashes at eight cycles/second (8Hz) in high beam mode. -
Page 17: Adjusting Beam Divergence
2.5 ADJUSTING BEAM DIVERGENCE Megaray’s beam divergence (angle) is adjusted by sliding the lens housing (Figure 16) forward or backward. 2.5.1 Decreased Beam Divergence As the lens housing moves forward (Figure 16 - A), the beam divergence decreases to a minimum of 2°. -
Page 18: Over Temperature
2.6.1 Temperature Control The Megaray is equipped with two heat sinks and an electric fan to maintain critical temperature levels. There are also two heat sensors that automatically switch the unit off should the temperature rise above a predetermined level. The sensors monitor the temperatures of the xenon lamp and the bottom heat sink. -
Page 19: Tripod Mounting
Figure 18. Threaded Hole in the Heat Sink Any standard ¼ inch tripod screw fits into the threaded hole at the bottom of the Megaray. The hole is situated on the bottom heat sink directly in front of the cooling fins (Figure 18). -
Page 20: Optional Accessories
CHAPTER 3 OPTIONAL ACCESSORIES 3.1 OPTIONAL ACCESSORIES The Megaray system offers the following optional accessories (Figure 19) to be used with the Megaray standard kit (Figure 2). Item Part Number Picture Description MIR - 103 Covert IR filter MIR - 102... -
Page 21: Ir Filters
3.2 IR FILTERS The Megaray optional accessory kit offers two different infrared filters - the MIR 102 (850 nm) (Figure 20 - A) and MIR 103 (930 nm) (Figure 20 - B). The MIR 103 filter’s glass is thicker than that of the MIR 102. -
Page 22: Hard Carry Case
3.3 HARD CARRY CASE The customized hard carry case can be used to store the standard Megaray kit together with other optional accessories. Description Dimensions External dimensions 62.7 x 49.7 x 30.3cm / 24.71 x 19.58 x 11.93in Internal dimensions 55 x 42.2 x 26.8cm / 21.68 x 16.62 x 10.56in... -
Page 23: Chapter 4 - Maintenance
4.1.2 Battery Vest The battery used in the Megaray battery vest is a Lithium polymer battery and is maintenance free. Materials used in manufacturing the Megaray battery vest are strong and durable. No maintenance is required other than cleaning the vest material periodically. - Page 24 Battery vest or external power a. Check for secure connection to source not connected to the battery or external power source Megaray b. Battery disconnected in battery b. Open battery pocket on battery vest vest and check for secure connection of...
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Page 25: Figure 25 Troubleshooting Table
a. Mode switch set to strobe mode a. Check mode switch setting for the desired operation. b. Faulty mode switch b. Repair light unit Light strobes when switched c. Lamp not striking due to faulty c. Repair light unit electronics d. -
Page 26: Figure 26 Specifications
SPECIFICATIONS ITEM DATA 4375 Lumens - As per xenon lamp manufacturer, Light Intensity rating at an average of 25 Lumens per Watt Light Source and Colour Source 175W short arc xenon bulb Colour Temperature 5600 Kelvin Beam Divergence 2 ◦ Spot Mode 6 ◦... -
Page 27: Appendix A Warranty Information
No unit will be accepted for repair or replacement under this warranty unless the purchaser has obtained a Return Authorization Number (RA#) from Megaray Limited If the above condition is fulfilled, Megaray Limited will inspect and/or test the unit in accordance with the applicable specifications. If the inspection or test reveals defects covered by this warranty, Megaray Limited will repair or replace the unit at its discretion.
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