Francis Searchlights LX480 Manuale utente

User Instruction & Installation Manual

LX480 Remote Control

2 Kilowatt Xenon Searchlight

Product Reference Number:

A7154 –Variable Speed Motor Unit 240v

Manufacturer’s details: Distributor details:

Manual Part Number: C28039

17.1.19 Issue: 1

Francis Searchlights Ltd

Union Road, Bolton

Lancashire, BL2 2HJ, UK

Tel: +44 (0) 1204 558960

Fax: +44 (0) 1204 558979

http://www.francis.co.uk

E-mail: sales@francis.co.uk

CONTENTS 
 
- Introduction 
 
- Safety Precautions 
 
- Technical Information 
 
- Unpacking and Installation Instructions 
 
- Electrical Installation 
 
- Operating Instructions 
 
- Fault Finding 
 
- Maintenance and Servicing 
 
- Wiring Diagram & General Assembly 
 
- Spare Parts List

1 –Introduction

It is imperative that this manual is read carefully and understood before

installing your equipment. For your future reference please keep this

manual in a safe place.

Thank you for specifying a product from the Francis Searchlights range. All Francis products

are designed to give complete customer satisfaction and are manufactured to the highest

engineering standards in order to ensure optimum performance and service life.

The Francis Xenon range combines features proven over many years service in the most

hazardous conditions in both marine and land installations.

In order to prolong the life and performance of your product, we recommend that you only

specify Francis Searchlights spare parts. This will also ensure that any warranties on your

equipment will not be invalidated. Information on spares ordering and parts is provided in this

manual.

Should you ever need to contact Francis Searchlights Ltd. regarding your equipment, please

quote the Product Serial Number at all times.

2 - Safety Precautions

The following instructions must be adhered to, in order to ensure a safe working environment

and the safety of the user.

Note: When unpacking or manoeuvring the searchlight into its fixing position, suitable

lifting points must be used in order to prevent damage to the equipment or personal

injury.

◼Because of the high internal pressure within the lamp, there is a risk of explosion in either a

hot or cold state;

◼During operation this lamp emits intense UV radiation which is harmful to the eyes and

skin. Suitable protection should be worn;

◼The high luminance of the arc can cause severe damage to the eye if viewed directly.

ALWAYS wear suitable protective goggles when viewing the lamp;

◼Always use protective jackets supplied with the lamp;

◼Should it be necessary to examine the lamp with the front bezel removed, always use a

protective shield and wear goggles to ensure a safe working environment;

◼Searchlights get hot. Never touch the unit when lit and always allow 15 to 20 minutes for

cooling down after turning the searchlight off;

◼Never place anything on or cover the searchlight when in use;

◼Ensure the lamp has cooled sufficiently before removal;

◼If undue force appears necessary to remove the lamp, the equipment should be inspected

by a competent person or contact the manufacturer;

◼When disposing of lamps there are several options available:

◼Return the lamp, via the supplier, to the lamp manufacturer in its complete

packaging

◼Because of the cold internal pressure of the lamp is approximately 8 bar,

the lamp must first be depressurised before disposal. Place the lamp, in its

protective jacket, in a plastic bag and drop from a height of 1 to 2 metres

onto a hard surface;

◼XBO lamps do not contain materials which are harmful to the environment and thus are not

subject to special waste disposal regulations;

◼Due to the vast range of lamps available it may appear possible that more powerful lamps

can be used in the equipment than for which it was designed. Even when the unit will

physically accept a higher wattage lamp, this substitution is not recommended and is

dangerous. This action will also void any warranties on the equipment.

◼Always refer to the lamp manufacturer’s technical data when dealing with lamps.

3 - Technical Information

This product has been designed to operate in accordance with the product specification. The

LX480RC 2000 watt searchlight has the following features:

◼All marine grade materials and fixings;

◼Electronic power supply unit;

◼Parabolic glass reflector;

◼Instant lamp re-strike. No cooling down time required;

◼Economical 2400 hour lamp life;

◼Powder coated & Stove enamel painted;

◼385° horizontal rotation;

◼Vertical movement + 30˚ to -35˚;

◼Variable speed 1-23˚/sec (Pan), 1-8˚/sec (Tilt);

◼RS485 connectivity & auto home positioning;

◼Remote focus facility;

◼Internal self-regulating heater.

◼Toughened front glass;

◼Sealing to IP56;

The searchlight also performs to the following optical data:

◼Xenon light source;

◼Lamp Wattage - 2000 Watts;

◼Supply voltage –220v-240v;

◼Peak Beam Candlepower –90,364,036 lux;

◼Range –9,506 metres;

◼Divergence - 1.5° spot to 10˚ flood;

◼Temperature range: -50°C;

In order that the searchlight operates correctly it is imperative that competent personnel are

responsible for the installation, operation and servicing of this equipment. Failure to adhere to

this advice may cause premature failure or incorrect operation of the searchlight, which may

damage the equipment or cause personal injury.

Technical information on the Power Supply Unit and Ignitor are included overleaf. For more

detailed information please contact the manufacturer.

PSU ref.: Model 8502 (Xelamp)

Ignitor ref. AS16040A (Irem)

Power Supply fixing centres 440 x 152 using M8 screws.

Power Supply Details (Model 8502)

General Description

Output Power 1400-2200 watts

Voltage 22-30 volts D.C.

Current 50-85 amperes D.C.

Ripple 5% peak-to-peak

Input Current 25/22 amperes maximum 40 amperes

maximum

Voltage 208/237 VAC 110/120 VAC

Phase Single

Frequency 60 Hz (50Hz available)

Output Adjustments 9 steps

Size Width 12” (30.5 cm)

Height 15” (38 cm)

Length 19” (48.25 cm)

Weight 145 lbs. (65.9 Kg)

Cooling Convection

Warning

When this appears in this text, it indicates a hazard to personnel.

Caution

When this appears in this text, it indicates a procedure which can result in equipment damage if

not properly accomplished.

Receiving the Power supply

The units are shipped with the power supply bolted to a shipping skid and enclosed in a heavy

cardboard cover held in place by banding. Physical damage to the container or its contents

should be reported to the carrier immediately.

Unpacking

Cut the banding strips and lift the cardboard cover off of the unit. Remove the four bolts holding

the power supply to the skid. Place the unit in the location selected for installation.

Locating the power supply

The power supply is convection cooled and the location selected should provide a minimum of

6” clearance around the case. The area should have free movement of air to dissipate the heat

generated by operation of the power supply. Provide a space large enough to allow service of

the unit if required.

Caution

Do not allow anything to be placed upon the power supply case; the perforated top is for

ventilation and must not be obstructed.

Try to select a location as close to the lamp house as practical. Many users install the power

supply adjacent to the searchlight where space is available and local codes permit.

Electrical installation and connection

Caution

Much future grief can be avoided by having a competent electrical contractor install and

connect this unit.

Caution

We make suggestions in this manual as to minimum wire sizes to be used. Refer to and

conform to the codes applicable in your area.

Caution

Observe polarity of the conductors which carry the D.C. output of the power supply to

the lamp house. Reversed polarity will immediately destroy the xenon bulb upon

application of power.

Warning

When the electrical installation is complete there are two sources of primary power

within the unit. Turn off all power when adjusting or servicing the power supply.

Warning

This unit can run warm to very hot. Allow at least 15 minutes after turning off the power

for the unit and its components to cool down before attempting any service procedures.

Holes are provided in the end section of the power supply case for conduit entries. Install

conduit in a manner which allows some movement for service if required. Refer to drawings for

connection information.

Model 8502 Primary line: (240v) #10 gauge minimum (110v) #8 gauge minimum; 30

ampere breaker or fuse (240v) 40 ampere breaker or fuse (110v).

D.C. output: #4 gauge minimum.

Warning

The power supplies have two sources of power. Disconnect (turn off) primary power

before making adjustments or service procedures.

Output power adjustment

Warning

The power supply stores energy after primary power is switched off. Wait a minimum of

two minutes for the capacitor charge to bleed off.

Taps are provided on TB1 to alter the output of the power supply. Small current changes may

be made by moving the tap from H to M to L. Highest current is on H; the lowest is on L. Larger

current changes may be made by moving the tap from 4 to 5 to 6. Highest current is on 4; the

lowest is on 6. One input line must be on H, M or L. The second line must be on 4, 5 or 6.

When the primary line is high (120/240 VAC), tap 5 or 6 should be used. For 110/208 VAC use

any tap, 4, 5 or 6. When changing taps, do not insert wire into the connector so far as to clamp

on the insulation rather than the bare wire. Be sure to tighten the connector screws.

Routine maintenance

Warning

The power supply has two sources of power. Turn off power before servicing the unit.

Warning

This unit can run warm to very hot. Allow at least 15 minutes after turning off the power

for the unit and its components to cool down before attempting any service procedures.

At 6-month intervals, clean dust out of the unit. Inspect all electrical connections. Look for

discoloration due to overheating. Be sure all components are clean and tight.

Troubleshooting

Much data can be obtained from the volt-ammeter built into the lamp house control panel. In

addition, the following instruments will be needed to perform all trouble-shooting operations that

can be done in the field:

Portable volt-Ohm-ammeter (VOM) –must be capable of supplying current to forward bias a

silicon diode on R X 1 range. (Some digital instruments cannot; consult operator’s manual for

instrument concerned.)

Clamp-on A.C. ammeter capable of ¼ ampere or better resolution.

Xenon lamp power supplies have two stages of operation:

1) Before igniting the bulb –At this time, the voltage at the power supply output terminals

reaches “open circuit” value (110 VDC or greater).

2) After igniting the bulb –At this time, the voltage at the power supply output is

determined by the load placed on the power supply by the xenon lamp (18-30 VDC).

Power supply difficulties can be separated into one of three areas for purposes of diagnosis

and repair:

A) Power line problems.

B) Boost circuit (Open circuit voltage) problems.

C) Main power supply problems.

A) Primary power problems

Power to the power supply is supplied from the sub-panel. The PSU power contactor, K1, will

operate when the lamp house is switched on in the absence of primary power to K1. If there is

D.C. voltage out of the power supply as indicted on the lamp house voltmeter you have primary

power. If there is no lamp house voltmeter, use your VOM. If there is no DC. Output voltage

and K1 operates, check the primary line with a VOM to locate the point of failure.

B) Boost circuit problems (open circuit voltage)

Loss of the open circuit voltage due to boost circuit problems will result in the following:

Ignitor will not fire in the AUTO mode.

Bulb will not light.

Disable the lamp house ignitor by removing primary power to the ignitor. Connect your VOM to

the power supply D.C. output. Observe polarity. Turn on the power supply. If you read 110 VDC

or more, the boost circuit is operating. If the D.C. voltage is low, on the order of 50 volts, it is

likely that diodes 5 and/or 6 have failed. Current limiting resistor R1 may be open.

C) Main power supply

Power supply bank D1-D4

A shorted diode will cause the primary current to go high and will trip the circuit breaker in the

sub-panel. An open diode will cause the projected picture to have a pronounced flicker and

may result in somewhat lower operating current.

Capacitors C1-C2-C3

A shorted capacitor or capacitors will raise the primary current and trip the circuit breaker in the

sub-panel.

C1-C2-C3

If these are open or have lost capacity (ability to store energy) they will cause either a

noticeable flicker in the projected picture or ignition problems or both. If in doubt, disconnect the

capacitors one at a time. After disconnecting a capacitor, if no change in ignition or flicker is

observed, then the capacitor is having no effect. Replace it.

Low capacity or an open capacitor affect ignition because there is insufficient surge current to

reliably light the bulb. If disconnecting a capacitor does change either flicker or ignition, then

the capacitor is functioning. Reconnect it. High ripple current caused by a diode failure will

result in overheating of R3. You may use a clamp-on A.C. ammeter on the common D.C. line to

the capacitor bank as an indirect method of checking ripple. The 8502-capacitor bank will have

a nominal 25 ampere (AC) current flow. Higher current indicates a high ripple condition. Lower

currents may indicate open or deteriorated capacitors.

Current into the capacitor bank varies with adjustment of the power output. As the output power

is decreased, current flow of the capacitor bank will decrease.

Diode testing and replacement

To test a diode, it must be disconnected from the circuit in which it is used. In many failure

modes, the diode failure can be tentatively identified by discoloration of the bright surface

because of excessive heat. You will still have to disconnect the diode and make further checks

to verify failure. After disconnecting the diode, sue your VOM on the R x 1 scale. With the

meter leads connected in one direction, the reading should be zero or close to it; reversing the

meter leads, the indication should be a very high resistance. If the diodes do not exhibit these

characteristics, replace it. If you have removed a diode from its heatsink or you are installing a

new diode, observe the following instructions: Clean the area of the heatsink in which the diode

is to be installed.

Warning

You must use heatsink compound. It is caustic in nature. Do not use for fingers; keep it

away from your eyes; and do not ingest. Follow instructions on the container in which

the compound is packaged.

You may obtain heatsink compound at your local electronics dealer. Apply the compound with

a wood or plastic spatula; a Popsicle stick will work well. A thin layer of compound is adequate.

Use internal star washers as opposed to split washers. When tightening the diodes in the

model 8502 power supply, the torque should be 90 in lbs, 125 in lbs. In replacing diodes,

observe polarity. Model 8502 –diodes 1-3 are 1N3291R types, diodes 2-4 are 1N3291S types.

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