Chauvet LED PAR 38-18UVB User manual

5200 NW 108th Avenue, Sunrise, FL 33351 U.S.A.
[phone] – [phone]
FAX [phone]
www.chauvetlighting.com
LED PAR 38-18UVB
User Manual
Snapshot
Use on Dimmer
Outdoor Use
Sound Activated
DMX
Master/Slave
Auto-ranging
Power Supply
Replaceable Fuse
User Serviceable
Duty Cycle

TABLE OF CONTENTS
1. BEFORE YOU BEGIN....................................................................................................................................................... 3
WHAT IS INCLUDED................................................................................................................................................................................ 3
UNPACKING INSTRUCTIONS ....................................................................................................................................................................3
MANUAL CONVENTIONS ......................................................................................................................................................................... 3
ICONS ..................................................................................................................................................................................................3
SAFETY INSTRUCTIONS ..........................................................................................................................................................................4
2. INTRODUCTION ............................................................................................................................................................... 5
FEATURES ............................................................................................................................................................................................5
ADDITIONAL FEATURES.......................................................................................................................................................................... 5
PRODUCT DIMENSIONS .......................................................................................................................................................................... 5
PRODUCT OVERVIEW ............................................................................................................................................................................6
3. SETUP ............................................................................................................................................................................... 7
AC POWER...........................................................................................................................................................................................7
Power Linking ............................................................................................................................................................... 7
Orientation .................................................................................................................................................................... 8
Rigging.......................................................................................................................................................................... 8
4. OPERATING INSTRUCTIONS.......................................................................................................................................... 9
CONFIGURING THE STARTING ADDRESS .................................................................................................................................................. 9
CONTROL PANEL FUNCTIONS .................................................................................................................................................................9
MENU MAP ...........................................................................................................................................................................................9
DMX OPERATION ...............................................................................................................................................................................10
MASTER/SLAVE ..................................................................................................................................................................................10
STANDALONE OPERATION ....................................................................................................................................................................10
Automatic .................................................................................................................................................................... 10
Sound-Active............................................................................................................................................................... 10
Custom Static Intensity ............................................................................................................................................... 11
Fixture Linking............................................................................................................................................................. 11
DMX CHANNEL VALUES ......................................................................................................................................................................11
5. APPENDIX....................................................................................................................................................................... 12
GENERAL MAINTENANCE .....................................................................................................................................................................12
NEVER SPIN A FAN USING COMPRESSED AIR........................................................................................................................................... 12
FIXTURE LINKING ................................................................................................................................................................................12
Data Cabling ............................................................................................................................................................... 12
DMX Data Cable ......................................................................................................................................................... 13
Setting up a DMX Serial Data Link ............................................................................................................................. 13
SETTING THE STARTING ADDRESS ........................................................................................................................................................13
GENERAL TROUBLESHOOTING ..............................................................................................................................................................14
RETURN PROCEDURE ..........................................................................................................................................................................14
CLAIMS ..............................................................................................................................................................................................14
TECHNICAL SPECIFICATIONS ................................................................................................................................................................ 15
CONTACT US......................................................................................................................................................................................15

LED PAR 38-18UV User Manual 3 Rev. 2
1. BEFORE YOU BEGIN
What is Included
1 x LED PAR 38-18UVB
1 x Gel Frame
1 x Warranty Card
1 x User Manual
Unpacking Instructions
Immediately upon receiving a fixture, carefully unpack the carton, check the contents to ensure that
all parts are present, and have been received in good condition. Notify the shipper immediately and
retain packing material for inspection if any parts appear damaged from shipping or the carton itself
shows signs of mishandling. Save the carton and all packing materials. In the event that a fixture
must be returned to the factory, it is important that the fixture be returned in the original factory box
and packing.
Manual Conventions
CHAUVET manuals use the following conventions to differentiate certain types of information from
the regular text.
CONVENTION MEANING
[10] A DIP switch to be configured
<Menu> A key to be pressed on the fixture’s control panel
1~512 A range of values
50/60 A set of values of which only one can be chosen
Settings A menu option not to be modified (for example, showing the operating mode/current status)
MENU > Settings A sequence of menu options to be followed
ON A value to be entered or selected
Icons
This manual uses the following icons to indicate information that requires special attention on the part
of the user.
ICONS MEANING
Critical installation, configuration or operation information. Failure to comply with this
information may render the fixture partially or completely inoperative, cause damage to the
fixture or cause harm to the user.
Important installation or configuration information. Failure to comply with this information
may prevent the fixture from functioning correctly.
Useful non-critical information.

LED PAR 38-18UV User Manual 4 Rev. 2
Safety Instructions
•Please keep this User Manual for future consultation. If you sell the unit to another user, be sure that
they also receive this instruction booklet.
•Always make sure that you are connecting to the proper voltage, and that the line voltage you are
connecting to is not higher than that stated on the decal or rear panel of the fixture.
•This product is intended for indoor use only! To prevent risk of fire or shock, do not expose fixture to
rain or moisture.
•Make sure there are no flammable materials close to the unit while operating.
•The unit must be installed in a location with adequate ventilation, at least 20 in (50 cm) from adjacent
surfaces. Be sure that no ventilation slots are blocked.
•Always disconnect from power source before servicing or replacing fuse and be sure to replace with
same fuse source.
•Secure fixture to fastening device using a safety chain.
•Maximum ambient temperature (Ta) is 104° F (40° C). Do not operate fixture at temperatures higher
than this.
•In the event of a serious operating problem, stop using the unit immediately. Never try to repair the
unit by yourself. Repairs carried out by unskilled people can lead to damage or malfunction. Please
contact the nearest authorized technical assistance center.
•Never connect the device to a dimmer pack.
•Make sure the power cord is never crimped or damaged.
•Never disconnect the power cord by pulling or tugging on the cord.
•Never carry the fixture directly from the cord. Always use the hanging/mounting bracket.
•Avoid direct eye exposure to the light source while it is on.
Please read these instructions carefully. It includes important
information about the installation, usage and maintenance of this
product.

LED PAR 38-18UV User Manual 5 Rev. 2
2. INTRODUCTION
Features
•2-channel DMX LED black light PAR can
•Manual dimming with or without DMX controller
•Built-in automated programs via master/slave or DMX with variable speed
•Built-in sound activated programs via master/slave or DMX
Additional Features
•High-power, 1 W, 350 mA LEDs
•Additional power output: max 16 units
•Double-bracket yoke doubles as floor stand
•Includes gel frame
Product Dimensions

LED PAR 38-18UV User Manual 6 Rev. 2
Product Overview
Power Output
Power Input
Gel Frame
Gel Frame
Release
Bracket Adjustment
Knob
Light Output
Hanging/mounting
(13 mm hole)
Control Panel
DMX In
Power Input
Microphone
Audio
Adjustment
Knob
Fuseholder
Bracket
Adjustment Knob
Attachment Bolt
(not meant to
be adjusted)
DMX Out
Power Output

LED PAR 38-18UV User Manual 7 Rev. 2
3. SETUP
AC Power
This fixture runs on 100~240 VAC, 50/60 Hz. Before powering on the unit, make sure the line voltage
to which you are connecting it is within the range of accepted voltages.
Always connect the fixture to a switched circuit. Never connect the fixture to a rheostat
(variable resistor) or dimmer circuit, even if the rheostat or dimmer channel is used only as a 0
to 100% switch.
To determine the power requirements for a particular fixture, see the label affixed to the back plate of
the fixture or refer to the fixture’s specifications chart. A fixture’s listed current rating indicates its
average current draw under normal conditions.
Always connect the fixture to a circuit with a suitable electrical ground.
Power Linking
This fixture contains power linking via the edison outlet located in front of the power input cable.
Please see the diagram below for further explanation.
The maximum quantity of fixtures that may be linked is 16.
Additional power
link out
The power linking shown in this document is for the Chauvet® North American version ONLY!
Therefore, it is the customer’s responsibility to check with the Dealer/Distributor regarding
power linking on the local version of the product. Connections and availability may change,
depending on the power requirements and/or regulations of each country/region.

LED PAR 38-18UV User Manual 8 Rev. 2
Do not use a tool
on the bracket
adjustment knob
Mounting
Bracket
Secondary bracket
(used primarily for
standing position)
Aim the fixture with
the gel frame
release pointing up,
(as shown in this
diagram)
The secondary
bracket will fold
out to a maximum
angle and hit the
stoppers. It will
adjust forward or
backward.
Mounting
Orientation
The LED PAR 38-18UVB may be mounted in any safe position provided there is adequate
room for ventilation.
Rigging
Be sure that the structure can support the weight of the fixture. Please see the “Technical
Specifications” section of this manual for a detailed weight listing. Mount the fixture
securely. This may be done with a screw, nut and bolt, or a hanging clamp. The hole in
each bracket is 13 mm in size. When rigging consider routine maintenance and control
panel access. Please see the following steps for installation.
•Be sure to orient the gel frame release so that it is pointing up. Please see the
diagram below for a visual reference.
•If the power link out is intended to be used with multiple fixture, take into account the
length of each power cable, and mount the fixtures close enough to one another to
accommodate for this.
•When aiming the fixtures, you may use the bracket adjustment knob. Loosen the
knob, adjust to the desired angle, and then tighten the knob by turning clockwise. Do
not use tools for this step, as it may cause damage.
•There is a secondary portion of the bracket, which may be used primarily for floor
standing positions.
•Safety cables must always be used.

LED PAR 38-18UV User Manual 9 Rev. 2
4. OPERATING INSTRUCTIONS
Configuring the Starting Address
Each fixture requires a starting address from 1~512. A fixture requiring one or more channels for
control begins to read the data on the channel indicated by the starting address. For example, a
fixture that uses seven DMX channels and is addressed to start on DMX channel 100, will read data
from channels: 100, 101, 102, 103, 104, 105 and 106. Choose the starting addresses for each fixture
so that the channels used do not overlap. In addition, you should note the starting address selected
for future reference.
The LED PAR 38-18UVB fixture uses two DMX channels. If this is your first time using DMX, we
recommend reading the “DMX Primer” section in the “Appendix”.
Control Panel Functions
Access control panel functions using the four buttons located directly underneath the LED display on
the included wired remote.
The Control Panel shows the current state of the unit. It is used to select the operating mode, as well
as the sub-features. For a detailed layout of the control panel functions, please see the “menu map”
section on the following page.
Menu Map
MAIN FUNCTION
SUB-FUNCTION
SELECTION
SUB-SELECTION
INSTRUCTION
AUTO
-
-
-
This is the automatic program
512 d001~d512
- -
Select 2-channel DMX mode: intensity, strobe;
this also sets the DMX starting address
(
d001
~
d512
)
sND - - -
This is the sound-activated program. You may
use the sound sensitivity adjustment knob
located on the rear of the fixture to adjust the
microphone sensitivity
S--
S001
~
S100
(default range is
S050
) -
This is the speed range for the automatic
program
U--
- -
000~100
Select a custom intensity, from low to high
BUTTON
FUNCTION
<MENU>
Used to scroll through the
current operating mode,
as well as back out of the
current menu option
<UP> Used to select increasing
advancement in the value
<DOWN> Used to select decreasing
advancement in the value
<ENTER> Used to select a value and
store it to memory
MENU UP DOWN ENTER

LED PAR 38-18UV User Manual 10 Rev. 2
DMX Operation
This is the operating mode which will allow for control with an external DMX controller. You must set the starting
address for this mode. If this is your first time using DMX, then it is recommended that you refer to the “DMX
Primer” section in the “Appendix” of this manual.
1. Press <MENU> until 512 appears on the LED screen.
2. Press <ENTER>.
3. Using <UP> and <DOWN>, select the desired DMX address (d001~d512).
4. Press <ENTER> to confirm setting.
Master/Slave
This is the operating mode which will allow 1 fixture to act as the “master” and control all of the other “slave”
fixture(s). You must set both the master and the slave(s) fixtures to the correct mode for this operation.
Master Settings:
1. Connect the fixtures with DMX cables, as shown in the “Fixture Linking” section.
2. Use any one of the standalone modes for the master unit. This includes: AUTO, U--, and
SND.
Slave Settings:
1. Press <MENU> until 512 appears on the LED screen.
2. Press <ENTER>.
3. Using <UP> and <DOWN>, set the DMX address to d001.
4. Press <ENTER> to confirm setting.
It is not necessary to set the master fixture as the first fixture in the daisy chain. It may be any
fixture in the daisy chain. For example: fixture 2, 5, 10 or 12, etc.
Only 1 fixture may be set to master.
Do not connect a DMX controller to the daisy chain for this operating mode.
Standalone Operation
Automatic
This fixture has an automatic program. This is accessed via the control panel, and the speed may be
adjusted. Please see the instructions below for further explanation.
1. Press <MENU> until AUTO appears on the LED screen.
2. Press <ENTER> to confirm setting.
Speed Adjustment:
1. Press <MENU> until S-- appears on the LED screen.
2. Using <UP> and <DOWN>, select the desired speed, slow to fast (s001~s100).
3. Press <ENTER> to confirm setting.
Sound-Active
This fixture has an automatic sound triggered chase. This is accessed via the control panel, and the
microphone sensitivity may be adjusted using the microphone sensitivity adjustment knob. Please see the
instructions below for further explanation.
1. Press <MENU> until SND appears on the LED screen.
2. Press <ENTER> to confirm settings.
3. Use the microphone adjustment sensitivity knob on the back of the fixture to adjust the microphone
sensitivity.

LED PAR 38-18UV User Manual 11 Rev. 2
Custom Static Intensity
This fixture has the ability to accept custom static intensity. This is accessed via the control panel. Please
see the instructions below for further explanation.
1. Press <MENU> until U-- appears on the LED screen.
2. Using <UP> and <DOWN>, select the desired intensity value, from lowest to highest (000~100).
By selecting 000, the output will remain off.
3. Press <ENTER> to save the final color setting.
Fixture Linking
In order to use this fixture in a DMX or master/slave operation, you must daisy chain, using DMX cables to link
from one fixture to another. In a master/slave operation, the DMX controller is not connected.
DMX Channel Values
CHANNEL
VALUE
FUNCTION
1
000 255
Dimmer
Intensity: 0%~100%
2 000 015
016 255
Strobe
No Function
Slow~Fast
Additional signal
link out
DMX controller
(only in DMX
operation)

LED PAR 38-18UV User Manual 12 Rev. 2
5. APPENDIX
General Maintenance
To maintain optimum performance and minimize wear, fixtures should be cleaned frequently. Usage
and environment are contributing factors in determining frequency. As a general rule, fixtures should
be cleaned at least twice a month. Dust build up reduces light output performance and can cause
overheating. This can lead to reduced lamp life and increased mechanical wear. Be sure to power off
fixture before conducting maintenance.
•Unplug fixture from power.
•Use a vacuum or air compressor and a soft brush to remove dust collected on external
vents.
•Clean all glass when the fixture is cold with a mild solution of glass cleaner or Isopropyl
Alcohol and a soft lint free cotton cloth or lens tissue.
•Apply solution to the cloth or tissue and drag dirt and grime to the outside of the lens.
•Gently polish optical surfaces until they are free of haze and lint.
The cleaning of external optical lenses and/or mirrors must be carried out periodically to optimize light
output. Cleaning frequency depends on the environment in which the fixture operates. Damp, smoky
or particularly dirty surroundings can cause greater accumulation of dirt on the unit’s optics. Clean
with soft cloth using normal glass cleaning fluid. Clean the external optics at least every 20 days.
Clean the fixture at least every 30/60 days.
Always dry the parts carefully after cleaning them.
Never spin a fan using compressed air.
Fixture Linking
You will need a serial data link to run light shows of one or more fixtures using a DMX controller or to
run synchronized shows on two or more fixtures set to a master/slave operating mode. The combined
number of channels required by all the fixtures on a serial data link determines the number of fixtures
the data link can support.
Fixtures on a serial data link must be daisy chained in one single line. To comply with the EIA-
485 standard, no more than 32 fixtures should be connected on one data link. Connecting
more than 32 fixtures on one serial data link without the use of a DMX optically-isolated
splitter may result in deterioration of the digital DMX signal.
Maximum recommended serial data link distance: 500 m (1640 ft)
Maximum recommended number of fixtures on a serial data link: 32
Data Cabling
To link fixtures together you must obtain data cables. You can purchase CHAUVET® certified DMX
cables directly from a dealer/distributor or construct your own cable. If you choose to create your own
cable please use data-grade cables that can carry a high quality signal and are less prone to
electromagnetic interference.

LED PAR 38-18UV User Manual 13 Rev. 2
This drawing
provides a general
illustration of the
DMX input/output
panel of a lighting
fixture.
Universal DMX Controller
Continue the link
DMX Data Cable
Use a Belden© 9841 or equivalent cable which meets the specifications for EIA RS-485 applications.
Standard microphone cables cannot transmit DMX data reliably over long distances. The cable must
have the following characteristics:
Type: shielded, 2-conductor twisted pair
Maximum capacitance between conductors: 30 pF/ft
Maximum capacitance between conductor and shield: 55 pF/ft
Maximum resistance: 20 ohms/1000 ft
Nominal impedance: 100 ~ 140 ohms
Do not allow contact between the common and the fixture’s chassis ground. Grounding the
common can cause a ground loop, and your fixture may perform erratically. Test cables with
an ohm meter to verify correct polarity and to make sure the pins are not grounded or shorted
to the shield or each other.
Setting up a DMX Serial Data Link
1. Connect the (male) 3-pin connector side of
the DMX cable to the output (female) 3-pin
connector of the controller.
2. Connect the end of the cable coming from
the controller which will have a (female)
3-pin connector to the input connector of
the next fixture consisting of a (male) 3-pin
connector.
3. Then, proceed to connect from the output
as stated above to the input of the following
fixture and so on.
Setting the Starting Address
This DMX mode enables the use of a universal DMX controller device. Each fixture requires a start address
from 1~512. A fixture requiring one or more channels for control begins to read the data on the channel
indicated by the start address. For example, a fixture that uses six DMX channels and was addressed to start
on DMX channel 100, would read data from channels: 100, 101, 102, 103, 104, and 105. Choose start
addresses so that the channels used do not overlap, and note the start address selected for future reference. If
you are not familiar with DMX, download the DMX Primer from www.chauvetlighting.com.

LED PAR 38-18UV User Manual 14 Rev. 2
General Troubleshooting
SYMPTOM POSSIBLE CAUSE(S) POSSIBLE ACTION(S)
Breaker/Fuse
keeps blowing
•Excessive circuit load •Check total load placed on the electrical circuit.
•Short circuit along the power
wires
•Check for a short in the electrical wiring (internal and/or
external).
Device does not
power up
•No power •Check for power on Mains.
•Loose power cord •Check power cord
Fixture is not
responding to
DMX
•Wrong DMX addressing •Check Control Panel and unit addressing
•Damaged DMX cables •Check DMX cables
•Wrong polarity settings on the
controller
•Check polarity switch settings on the controller
•Loose DMX cables •Check cable connections
•Faulty DMX interface •Replace DMX input
•Faulty Main PCB •Replace Main PCB
Loss of signal
•Non DMX cables •Use only DMX compatible cables
•Bouncing signals •Install terminator as suggested.
•Long cable/Low level signal •Install amplifier right after fixture with strong signal.
•Too many fixtures •Install an optically coupled DMX splitter after unit #32.
•Interference from AC wires •Keep DMX cables separated from power cables or
black lights.
If you still have a problem after trying the above solutions, please contact CHAUVET®
Technical Support.
Return Procedure
Returned merchandise must be sent prepaid and in the original packing; call tags will not be issued.
Package must be clearly labeled with a Return Merchandize Authorization Number (RMA #).
Products returned without the RMA # will be refused.
Call CHAUVET® and request an RMA # prior to shipping the fixture. Be prepared to provide the
model number, serial number and a brief description of the cause for the return. Be sure to pack
fixture properly; any shipping damage resulting from inadequate packaging is the customer’s
responsibility. FedEx packing or double-boxing are recommended.
CHAUVET® reserves the right to use its own discretion to repair or replace product(s).
If you are given an RMA #, please include the following information on a piece of paper inside
the box:
1) Your name
2) Your address
3) Your phone number
4) The RMA #
5) A brief description of the symptoms
Claims
Damage incurred in shipping is the responsibility of the shipper; therefore, the damage must be
reported to the carrier upon receipt of merchandise. It is the customer's responsibility to notify and
submit claims with the shipper in the event that a fixture is damaged due to shipping. Any other claim
for items such as missing component/part, damage not related to shipping, and concealed damage,
must be made within seven (7) days of receiving merchandise.

LED PAR 38-18UV User Manual 15 Rev. 2
Technical Specifications
WEIGHT & DIMENSIONS
Length ............................................................................................................................................................. 9.3 in (235 mm)
Width............................................................................................................................................................... 8.8 in (223 mm)
Height............................................................................................................................................................ 13.3 in (337 mm)
Weight............................................................................................................................................................... 4.2 lbs (1.9 kg)
POWER
Auto-ranging power supply ................................................................................................................100~240 VAC, 50/60 Hz
Power consumption @ 120 VAC, 60 Hz................................................................................. 24 W (0.4 A) max, 0.2 A inrush
Power consumption @ 230 VAC, 50 Hz................................................................................. 29 W (0.2 A) max, 0.2 A inrush
Power output........................................................................................................................................................ 16 units max
Fuse ......................................................................................................................................................................T 1 A, 250 V
LIGHT SOURCE
LED .............................................................................................................................................. 18 1 W, 350 mA, 50,000 hrs
PHOTO OPTIC
Coverage Angle .................................................................................................................................................................. 23°
THERMAL
Maximum ambient temperature .........................................................................................................................104° F (40° C)
ORDERING INFORMATION
LED PAR 38-18UVB (Black)....................................................................................................................... LEDPAR3818UVB
WARRANTY INFORMATION
Warranty .............................................................................................................................................. 2-year limited warranty
Contact Us
World Wide
General Information CHAUVET®
5200 NW 108th Avenue
Sunrise, FL 33351
voice: 954.929.1115
fax: [phone]
toll free: 800.762.1084
Technical Support CHAUVET®
5200 NW 108th Avenue
Sunrise, FL 33351
voice: 954.929.1115 (Press 4)
fax: [phone] (Attention: Service)
World Wide Web www.chauvetlighting.com