Sea & Sea YS-250PRO User manual

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CAUTION
9 10
●O-ring maintenance manual
●Silicon grease
Battery Requirements
Battery Installation and Removal
●Diffuser
Sync Ｃord Connection
(Photography with an underwater camera/SLR housing)
●Slave sensor cap
Fig. 2
Fig. 1
1. Turn the battery cap counterclockwise and remove. (Fig. 1)
2. Install the battery in the product with the label facing upward as
shown in the Fig. 2.
3. Fully insert the battery connector into the product as shown in the
Fig. 3.
4. Align the △mark inside the battery cap with the salient on the
battery compartment (Fig. 4). Turn the cap clockwise to close.
* Be careful not to tangle the battery connector cords and string.
《How to connect the sync cord with the strobe》
This product can only be powered by the SEA&SEA battery for
YS-250PRO (54102). Do not use other batteries, as it may emit gas
and result in an explosion.
Before using this product, check to make sure that all accessories
are present.
●Never install/remove the battery with wet hands. Pay particular
attention not to allow water from your hair or wetsuit to drip into
the battery compartment, in order to prevent an electrical hazard,
mold, malfunction or flooding.
When you use this strobe with an underwater camera/SLR housing
equipped with strobe bulkhead connectors, connect the strobe to
the camera/housing with a sync cord (option).
1. Examine O-ring on sync cord connector for cuts or debris.
Lubricate O-ring lightly.
2. Align the salient of the strobe bulkhead
connector and the notch on the sync cord
connector. Insert the sync cord connector
straight into the strobe bulkhead connector
and push in until the O-ring is seated.
Rotate the threaded retaining ring (part A)
clockwise until it is secure.
3. To disconnect, turn the threaded retaining
ring (part A) counterclockwise, then pull the connector straight out.
Never pull, twist or bend the cord for disconnection.
Upward Upward
Label
Align the salient
with △mark.
Accessories
Before Taking Photographs
Fig. 3 Fig. 4 Fig. 5
5. After closing the battery cap completely, turn back the cap to align
the concave marks on the cap and the product top (Fig. 5).
Mark
Sync cord connector A

1. Examine O-ring on sync cord connector for
cuts or debris. Lubricate O-ring lightly.
2. Align the notch in the sync cord connector
with the index mark on the camera/housing's
bulkhead connector. Insert the sync cord
connector into the bulkhead connector.
Push the cord in until the O-ring is seated.
3. Rotate part (B) clockwise till secure.
4. Turn part (C) till it securely holds the camera to stay.
5. To disconnect, loosen and release the connector end by reversing
steps 1-4 above. Pull the connector straight out. Never pull, twist
or bend the cord for disconnection.
《How to connect the sync cord with
an underwater camera/SLR housing》
This strobe is triggered by sensing the light from a main external
strobe or a built-in flash. Use a SEA&SEA fiber-optic cable (option)
when using this strobe with a compact digital camera or as a sub
(slave) strobe. Otherwise, the strobe may not synchronize with the
main strobe.
* Some housings are not compatible with a SEA&SEA fiber-optic cable.
【When using this strobe as a sub (slave) strobe】
《How to connect the fiber-optic cable with the strobe》
1. Insert one end of the fiber-optic cable
into the slave sensor socket and
connect to the main strobe.
* This product has two slave sensors.
2. Secure the cable by the hook.
【When using this strobe as a main strobe】
1. Insert one end of the fiber-optic cable into the additional socket
and connect to the slave sensor of another sub (slave) strobe.
●Do not touch the connector's contact pins with fingers. Do not apply
silicone grease to the connector pins. Silicone grease will impair
the electrical connection. If contaminated accidentally, clean the
pins by a cotton swab moistened with alcohol.
●Whenever a sync cord is not connected to
a camera, housing and/or strobe, protect
the ends of the cord and bulkhead connectors
with their plastic protective caps. (Fig. 6)
●Before rinsing a detached sync cord and/or
strobe, be sure to put the connector caps
on the exposed ends.
●Refer to the instruction manual for the sync
cord before use.
●Be sure to use two YS-250PRO strobes when using two strobes
connected with sync cords. Combination with other strobes will
generate unbalanced light.
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CAUTION
A
B
C
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Fiber-optic Cable Connection
(Photography with a compact digital camera)
Fig. 6
●This strobe is triggered by sensing the reflected light from the
subject. If the light is too weak to trigger the strobe, strobe will
not fire.
●This strobe may be triggered when other strobes fire around you.
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CAUTION
Slave sensor
Hook
Additional socket
Slave sensor
Sync Cord N