Ikelite DS51 Manuel utilisateur

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DS51 TTL Strobe

Product Number 4044.1

About this Product

Thank you for your purchase of Ikelite equipment. Please read this

instruction manual completely before attempting to operate or dive

with this product. Please visit ikelite.com to register your product

to receive information on any updates or notices pertaining to your

equipment.

Included in the Box

• DS51 strobe

• Diffuser # 0561.2

• Bulkhead cap # 9104.5

• 1” Ball Mount # 4081.4 (Strobes produced after October 1, 2016)

• Silicone lubricant 1cc tube # 0184.1

• 2 year manufacturer warranty

Specifications

• Weight ....................................................0.6kg (1.3 lbs.) with

batteries

• Energy Rating ........................................50 watt-sec.

• Coverage Angle ....................................70° (80° with diffuser)

• Widest Angle Lens ................................28mm SLR

• Guide Number (ISO 100) feet ...............56 surface, 28 underwater

• Guide Number (ISO 100) meters ..........17 surface, 9 underwater

• Firing Modes ..........................................TTL/Auto, Full, 5 fractional

powers

• Color Temperature 5700°K

• Power Source ........................................4 AA-cell alkaline, NiCad,

or NiMH

• Flashes ..................................................200 full power

• Recycle Time..........................................3.5 seconds (full power)

• Depth Rating ..........................................90m (300 feet)

• CE - Compliant with applicable EU directives

• Complies with FCC part 15, subpart B, Section 15.109 for Class “B”

Products

Overview of DS51 Features

• Mode switch features TTL/auto and manual exposure settings.

• Battery compartment accommodates four AA batteries: alkaline,

NiCad, or NiMH.

• Ready light indicates when strobe has recycled.

• Diffuser provides softer lighting, wider coverage angle and reduces

strobe output by one f-stop.

Important Notices

»To prevent salt build-up and sticking controls, submerge the

strobe in clean, freshwater. Operate the knobs several times

each while underwater to ush out any residue.

»Do not use cleaning agents, spray lubricants, Rain-X, or

other solvents on strobe. Use of an incompatible chemical

compound can damage the plastic and o-rings, and may result

in leaking.

»The DS51 bulkhead connector is not waterproof and must

be capped when not connected to a cord or sensor. Using a

DS51 underwater with the bulkhead connector uncapped or

unconnected will cause the strobe to ood.

»The strobe is factory sealed; do not disassemble. Disassembly

will void your Ikelite DS51 limited warranty.

»Do not continuously re the strobe more than 15 times above

water in rapid succession. If this does happen, allow the

strobe to cool down for at least 10 minutes.

»Lithium-ion batteries are NOT recommended

Contents

Product Registration 1

About this Product 2

Included in the Box 2

Specications 2

Overview of DS51 Features 3

Important Notices 4

Getting to Know Your Strobe 7

Mounting the Strobe 8

Ikelite Arm/Mounting System 8

Attaching a Sync Connector 9

Battery Compartment 10

Opening the Compartment 10

Changing the Batteries 10

Battery Compartment - continued 11

Closing the Compartment 11

Compartment Flooding 12

Strobe Ready Light 13

Ready Light with TTL Housing 13

Ready Light with Remote Optical Slave Converter #4403 13

Mode Switch 14

OFF position 14

TTL/Auto Exposure Position 15

Manual Exposure Position 15

Strobe Diffuser 16

Using the Diffuser 16

Diffuser Installation and Removal 16

Maintenance 17

Post-Dive 17

Cleaning, Travel and Storage 18

Troubleshooting 18

Photos are over-exposed (too light) 18

Photos are under-exposed (too dark) 19

Strobe will not re 19

Strobe will not re when using sync cord 21

Strobe will not re when using an optical sensor 21

Ready light does not come on 22

Limited Warranty 22

Service and Repairs 23

Getting to Know Your Strobe

ikelite

SUBSTROBE

ikelite

Knob Battery Door Mode Switch

Strobe Ready Light

Waterproof

Bulkhead

Cap

Bulkhead

Connector

Flashtube

Mount

Mounting the Strobe

Ikelite Arm/Mounting System

The DS51 will accept several Ikelite strobe arms and mounts on the

underside of the strobe body. A 1-inch Ball Mount Mark II is included

which will allow attachment to 1-inch diameter ball arms from Ikelite,

TLC, Ultralight, Nauticam, and others. For further information, please

visit ikelite.com.

ikelite

SUBSTROBE

4080.05 Compact Ball Arm

4081.4 1-inch Ball Mount

Mark II (Included)

Attaching a Sync Connector

»A bulkhead cap or waterproof connector must be attached

to the strobe for waterproof operation. Never submerge the

strobe without either a bulkhead cap or compatible waterproof

connector attached.

1. Remove the bulkhead cap.

2. Lightly lubricate the connector O-ring. We recommend using only

Ikelite silicone lubricant to eliminate the possibility of swelling due to

incompatible compounds.

3. Line up the pins and receptacles and insert the Sync Cord Plug into

the bulkhead. The plug should slide easily into the bulkhead. If you

feel resistance, do not force it. Remove the plug and check

alignment.

Sync Cord Plug

Connector O-ring

Bulkhead

Waterproof

Bulkhead Cap

4. Rotate the knurled retaining ring until snug on the housing

bulkhead. Do not use pliers or tools to tighten the retaining ring.

Battery Compartment

Opening the Compartment

Always turn the strobe to OFF before opening the battery door located

at the back of the strobe. To access the battery compartment, rotate

the knob counter-clockwise several times and gently pull the door

off. Tilt the rear portion of the strobe down while removing the battery

door to eliminate the possibility of water droplets falling into the battery

compartment after a dive. Do not remove the knob from the battery

door. The battery compartment is sealed separately from the main

electronics. Do not disassemble the strobe. Disassembly will void your

Ikelite limited warranty.

Opening the Compartment

Be aware of the position of the o-ring around the perimeter of the

battery door. Keep the o-ring and sealing surfaces clean.

Lubricant is not necessary for proper sealing of the battery door o-ring.

To extend its life, you can lightly lubricate the exposed part of the

door’s o-ring before storing.

Changing the Batteries

Install four AA-cell batteries: alkaline, NiCad, or NiMH. Refer to the “+”

and “ – “ markings in the battery compartment to help properly install

the batteries. If the batteries are installed incorrectly, it may damage

the strobe’s electronics. Always carry spare batteries; weak batteries

cause many camera and strobe problems. It’s time to replace the

batteries when the ready light remains dark for 15 seconds or longer

after a ash.

Note: It is possible to buy bad “new” batteries, so check the voltage

output with a meter. Lithium-ion batteries are not recommended due

to their effect on the strobe’s recycle time and the batteries’ thermal

switch characteristics.

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