INTRODUCING:THE WS-2103A SERIES AN L.E.D. ENHANCEMENT OF THE
WS-103 SERIES LASER WARNING SIGNS
Many times, over the past decade, we have looked for an L.E.D. replacement for the incandescent lamps used in our warning signs. Like most L.E.D.s of the past, they were OK when viewed straight-on, but were not up to the task when veiwed from the side, where signs are initially viewed in the majority of installations. (hallways) Finally, we located L.E.D.s that are very visible from the side as well as from the front; these units are the basis for the new WS-2103A series of warning sign.
The first of this series is the WS-2103A-3, an L.E.D. version of our most popular sign, the WS-103A-3. (the latter will remain available as a production item) For many users, eliminating the requirement to change lamps will be justification enough to upgrade to an L.E.D. version. The WS-2103A series of signs are backward-compatable with earlier versions; they may be mixed and matched on the same controller.
Note, that the WS-2103 series signs will have a further advantage in visibility, especially in very large, and/or very bright rooms, or in applications where extra attention-getting warnings are desired.
Please see the following short video clip, which compares these signs, first from straight-on, then from well off to one side.
Model WS-2103A-3
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The WS-103A-3 illuminated laser warning sign is our most popular sign. It incorporates the following options:
More detailed and colored legends
Flashing red lamps in the danger condition
Long–life lamps
Legend wording was composed by Los Alamos
National Labs. The WS-103A-3 sign, with its wording and option set, is known among users
as “the Los Alamos package.”
Model WS-103A-3
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The sign shown below is the standard
WS-103A. Legends are in black. Options include flashing DANGER lamps and pigtail leads for
mounting against a wall with hidden wiring, like an electric clock.
Model WS-103A
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CUSTOM LEGENDS, CUSTOM
SIGNS
CAL-AV Labs welcomes the opportunity to provide custom legends and / or custom signs
for a particular application. A significant fraction of the signs that we produce are
special designs. The example pictured below is a four-level warning sign that was produced
for a government research facility.
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Warning signs usually require a WSC-200B controller for
operation. Each controller allows either manual or automatic operation of up to three
signs. See additional text below for detailed description of controller function and other
sign models.
WSC-200B Controller
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CAL-AV’s illuminated laser warning signs and controllers
feature welded aluminum cases, and utilize industrial-grade components throughout. They
have been used in research and industrial locations nationwide since 1992. All models are
designed for a minimum service life of 20 years.
Applications
Features
- Hazardous
areas, such as laser labs
- Manual or
automatic operation
- Multiple
entrance protection
- Low-voltage
interconnections
- Remote
status indication
- Dual lamp
redundancy on signs
- Security
aid
- Controller
drives up to three signs
Specifications
Inputs:
Power:
115 Vac 50/60 Hz, 1/4 amp.
Signal:
Contact closure or transistor pulldown to
drive Internal relay (in controller) (0.5 watts, inductive)
Models
Approximate
Overall Dimensions
WSC-200B Controller
4¾" x7½" x
3"
WS-100B Sign
10" x 12" X
21/2" concealed mounting plate, black borders
WS-101A Mini-Sign
2¾" x 3¾" x
5¾"
WS-102A Sign
4¾" X 8½" x
2½"
WS-103A-3 Sign
8" x 10" X
21/2" concealed mounting plate, black borders
WS-103A Sign
8" x 10" X
21/2" concealed mounting plate, black borders
CV-1A Converter
3" x 3¾"
x4¾"
Replacement Bulbs
Models
Replacement
Bulb
WS-100B, 102A, 103A &
103A-3
GE or Sylvania #1820 or
#1822
WS-101A & WSC-200B
GE or Sylvania #385
INCANDESCENT LAMP REPLACEMENT
(OR, HOW MANY LASER SCIENTISTS DOES IT TAKE TO CHANGE A LIGHT BULB?)
REPLACING LAMPS ON WS-100, WS-102, AND 103 SERIES SIGNS
These signs originally used 1820 lamps. Those lamps are no longer used, but have been replaced with 1822 lamps. The 1822 is actually a 36-volt lamp. When operated from a 24-volt power source (as from the WSC-200B controller), its brilliance is diminished only slightly, however, its service life is extended by a factor of about 3. The 1822 is a bayonet base, T-3 ¼ envelope.
#1822 Lamp Replacement
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To replace the lamp, carefully unscrew the transparent plastic color filter / hemispherical dome lens and set it aside. Push down gently on the lamp in the lampholder. While maintaining the downward force, rotate the lamp about 15 degrees in the counter-clockwise direction, and allow the lampholder’s internal spring to push it partially out. The lamp may then be grasped with the fingers, and discarded. Insert a new lamp, pushing down gently, turning clockwise 15 degrees, and releasing pressure to let the bayonet lugs to engage and hold the lamp in place.
Now, the tricky part: Looking from aside the lampholder, put lens in place, holding it as square to the lampholder threaded opening as possible. Now rotate counter clockwise, as if you were removing it, until an audible / tactile click is detected, then turn clockwise to screw it in. If successful, it will thread in easily. If the slightest hint of cross-threading is detected, repeat the counterclockwise rotation to detect the correct thread alignment. After a few experiences of this method, you will be the resident Guru.
REPLACING LAMPS ON WSC-200B CONTROLLERS AND WS-101 SIGNS
This controller and very small sign use a #385 lamp, which is a 28-volt, long life aircraft bulb with a T 13/4 SC midget flanged base.
To replace lamp, unscrew the colored filter from the lampholder base. Notice, that the colored filter’s small, threaded extension has, at its end, a flange, with a central contact. The flange and contact are actually part of the lamp, which may be removed from the filter by gently grasping the flange with a pair of serrated tine long-nose pliers, and pulling it out, while holding the plastic part of the filter with the other hand.
#385 Lamp Replacement
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Discard old lamp and replace with new one, then replace filter by screwing it back into lampholder base.
Accessories
All signs, controllers and converters are supplied with
mating connectors.
Interconnecting wire—Belden 8444 recommended.
Interconnecting cables cut to length and assembled on request—cost determined by
length.
Converter, 11 5V ac power to contact closure—other
voltages available
Options and Modifications
Flashing red "DANGER" lights
Audible signals when red "DANGER" lights are on.
Audible signal is modulated by flasher if flasher is installed
The WS-103A-3 illuminated warning sign,
the WS-103A illuminated warning sign and the WSC-200-B
controller are generally available for shipment from stock.
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