instructions
manual
Index
1.Packaging Pag. 4
2.Transportation ,, 4
3.Important safety information ,, 4
4.Opening the projector ,, 5
5.Lamp: installation and replacement ,, 6
6.Operating voltage and frequency ,, 8
7.Installation ,, 8
7.1 Installing the unit in weather protected areas ,, 8
7.2 Installing the unit in exposed areas ,, 8
7.3 Warning ,, 8
8. Mains connection ,, 9
9.Signal connection ,, 10
9.1 Automated operation - “solo” ,, 10
9.2 Operation via DMX 512 ,, 10
9.3 Synchronising multiple AR 250 C fixtures without DMX 512 signal ,, 11
10.Powering up ,, 12
11.DMX addressing ,, 13
12.Operating via DMX 512 signal ,, 14
13.Dip-switches settings for automated “solo” operation ,, 15
14.Operating multiple AR 250 C. in the absence of DMX signal ,, 16
14.1 “Master” units ,, 16
14.2 “Slave” units ,, 17
15.Dip-switch functions ,, 18
16.Auxiliary led and reset button functions ,, 19
17.Mechanical adjustments ,, 20
17.1 Tilt adjustment ,, 20
17.2 Altering beam angles by using lenses ,, 21
18.Altering the operating voltage and frequency ,, 23
18.1 Selecting the operating voltage on the autotransformer ,, 23
18.2 Selecting the operating frequency on the power supply ,, 24
19.Opening the front of the projector ,, 25
20.Thermal protection ,, 26
21.Servo-controlled fan ,, 26
22.Maintenance ,, 26
23.Electronic motor alignment ,, 27
24.Spare parts ,, 28
3
English
Congratulations on having purchased a ETC product. You have assured yourself of a fixture of the highest quality, both in componentry and in the technology used.
Following the instructions and procedures outlined in this manual will ensure the maximum efficiency of this product for years to
come.
Open the packaging and ensure that no part of the equipment has suffered damage in transit. In case of damage to the equipment,
contact your carrier immediately by telephone or fax, following this with formal notification in writing.
packing list
Ensure the packaging contains:
1 AR 250 C.
1 owner and installation manual
3 optical prismatic lenses
1. lamp ETC PN RT172 Lamp MSD250W/2
The AR 250 C. should be transported in its original packaging or in a ETC approved flight case.
During transportation, the packaging or flight case should ensure no movement of the unit.
Failure to do so may result in damage to the unit.
Fire prevention:
1. AR 250 C utilizes a Philips MSD 250W/2 lamp or equivalent; the use of any other lamp is not recommended and will null and
void the fixture’s warranty.
2. Never locate the fixture on any flammable surface.
3. Minimum distance from flammable materials: 0.5m (1.6’).
4. Minimum distance from the closest illuminable surface: 2.0m (6.6’).
5. Replace any blown or damaged fuses only with those of identical values. Refer to the schematic diagram if there is any doubt.
6. Connect the projector to mains power via a thermal magnetic circuit breaker.
Prevention against electric shock
1. High voltage is present in the internals of the unit. Isolate the projector from mains supply prior to performing any function which
involves touching the internals of the unit, including lamp replacement.
2. For mains connection, adhere strictly to the guidelines outlined in section 7 of this manual.
3. The level of technology inherent in the AR 250 C requires the use of trained technicians for all service applications;
4. A good earth connection is essential for proper functioning of the projector.
Never operate the unit without proper earth connection.
Protection against ultraviolet radiation
1. Never turn on the lamp if any of the lenses, filters, or the housing is damaged; their respective functions will only operate efficiently
if they are in perfect working order.
2. Never look directly into the lamp when it is operating.
Safety:
1. The projector should always be installed with bolts, clamps, and other fixings which are sufficiently rated to support the weight
of the unit.
2. Always use a secondary safety chain of a sufficient rating to sustain the weight of the unit in case of the failure of the primary
fixing point.
3. The external surface of the unit, at various points, may exceed 150°C (302ºF). Never handle the unit until at least 10 minutes after
the lamp is turned off.
4. Never install the fixture where unauthorised and untrained personnel may tamper with it.
5. Always replace the lamp if any physical damage is evident.
6. Never install the fixture in an enclosed area lacking sufficient air flow; the ambient temperature should not exceed 35°C (95.0ºF).
7. A hot lamp may explode. always wait for at least 10 minutes to elapse after the unit has been turned off prior to attempting to
replace the lamp. Always wear suitable hand protection when handling the lamp.
Protection rating of the body against liquids and solids:
1. The fixture has an IP44 protection rating; this indicates that a particle larger than 1mm (0.04”) cannot penetrate the unit and that it
is totally protected against showers of water.
The protection rating allows the fixture to be utilized in an exposed location in inclement weather as long as it is installed accor ding
to the instructions located in section 7.2 “Installing the unit in exposed areas”.
3. Important safety information
2. Transportation
1. Packaging
4
English
Many of the operations described later in this manual can only be performed with the projector housing opened..
To access the internals of the projector, proceed as follows:
1) Using a Philips head screwdriver, loosen and remove the 11 screws (A) which affix the rear housing (B) of the projector body.
Care should be taken during this operation to not drop and lose the screws.
2) Remove the cover (B) from the central seal.
3)You should now have access to the internals of the unit and may carry out the instructions detailed below.
Important Note:
To close the unit, you must ensure that the rear cover (B) is properly seated in the central seal (C) and then replace and
fasten the 11 screws. The AR 250 C will only maintain its weather-resistance if this procedure is carried out with scrupu-
lous attention to detail.
Attention!
Turn off the power prior to opening up the unit.
The fixture’s internal temperature may reach 250° C (482° F) after 5 minutes, with a maximum peak of 350°C (662° F). Ensure
the lamp is cold prior to attempting removal. The fixture should be allowed to stand and cool for 10 minutes prior to its removal.
4. Opening the projector
5
English
The AR 250 C utilizes a Philips MSD 250W/2 or Philips MSD 250W lamp or equivalent.
MSD 250W/2
power 250 w
luminous flux 18.000 lm
color temperature 8.500° K
base GY 9,5
approximate lamp life 2000 hours
MSD 250W
power 250 w
luminous flux 18.000 lm
color temperature 6.700° K
base GY 9,5
approximate lamp life 2000 hours
To access the lamp, you should proceed as described in section 4 of this manual.
MSD lamps are part of the mercury vapour family of discharge lamps and must be handled with great care. the lamp operates at
high pressure, and the slight risk of explosion of the lamp exists if operated over its recommended life.
We recommend, therefore, that the lamp be replaced within the manufacturer’s specified lamp life.
1) Locate the lamp assembly and, using a Philips head screwdriver, loosen the three screws (C) which affix the assembly.
2) Remove the lamp assembly (D). Care should be taken to avoid damaging the cables when extracting the assembly.
3) Locate the lampholder (E)
5. Lamp: installation and replacement
6
English
4) Insert the lamp into its base (E).
The lamp used is manufactured from quartz glass and should be handled with care. Always adhere to the instructions supplied in
the lamp’s packaging. Do not touch the glass directly, use the cloth provided with the lamp.The GY 9,5 lampholder is asymmetrical
in construction, with one pin larger than the other. Ensure that the pins are correctly aligned with the appropriate socket. DO NOT
USE UNDUE FORCE. Incase of difficulty, re-read the instructions and repeat the procedure.
5) Replace the lamp into its original position and replace and retighten the 3 screws which were previously removed.
Do not close the unit until all the operations have been performed on the display panel internal to the AR 250 C.
7
English
The fixture may operate at voltages 100, 115, 208, 230 or 240V at 50 or 60 Hz. preset is indicated on the sticker located on the
base of the projector, as indicated in the following diagram.
If the specified voltage and frequency do not match those of the country in which you are operating, follow the instructions in section 19 of this manual. “Altering the operating voltage and frequency”
Incorrect voltage and frequency selection will detrimentally affect the operation of the projector.
Due to its high protection rating AR 250 C may be installed in a variety of locations, both indoors and in areas exposed to the elements.
7.1 Installing the unit in weather protected areas.
AR 250 C. may be situated in any mounting position when operated in sheltered areas.
In order to allow it to be installed in a variety of locations, the AR 250 C is provided with 5 mounting holes (A) of Ø 13mm on its
base; for permanent and secure mounting on any surface.
If hanging the unit from ceiling or a structure, you may utilize the holes (A) which allow for the attachment of a “c” clamp at any position through 360°. The structure from which the unit is hung should be of sufficient rating to hold the weight of the unit, as should
any clamps used to hold the unit.
7.2 Installing the unit in exposed areas
The AR 250 C may be situated in several mounting positions when installed in an exposed area, thanks to its IP 44 protection
rating. To ensure proper installation, however, there is a simple guideline to follow:
Installing the unit incorrectly may cause damage to occur and will immediately void the warranty.
Attention!
As shown in the diagram, base of the unit must always be facing the ground.
The AR 250 C may be adjusted from -45° to +90°.without having to move any other component except the head of the fixture.
Installation in any position other than with the base down, will cause the projector to not perform with its maximum protection rating.
325mm
12,80”
185mm
7,3”
140mm
5,51”
==
A
7. Installation
factory set main at:
100V
115V
208V
230V
240V
50Hz
60Hz
6. Operating voltage and frequency
8
English
7.3 Warning
safety chain
When hanging the AR 250 C we recommend the use of a safety chain, affixed to the appropriate hole (B) on the yoke of the AR
250 C and to the suspension device.
This secondary safety attachment should be done using either a metal wire rope or a metal chain, both suitably rated for the purpose.
risk of fire
Every projector produces heat, and should therefore be installed in a well-ventilated position. The minimum distance from flammable materials: 0.5m (1.64’). The minimum distance from the object being illuminated: 2.0m (6.6’).
cabling
The mains cable provided is thermally resistant, complying to the most recent international standards.
In case of cable replacement, similar cable with comparable thermal resistant qualities must be used exclusively (cable 3x1.5 external
10mm (0.4”), rated 300/500V, tested to 2KV, operating temperature -40°C (-40ºF) +180°C (356ºF).
mains connection
AR 250 C can operate at voltages from 100V, 115V, 208V, 230V, 240V at 50 or 60Hz (operating voltage and frequency
can be selected as described in section 6 and 19 of this manual). Prior to connecting the unit to your mains supply, ensure that the
model in your possession correctly matches the mains supply available to you.
For connection purposes, ensure your plug is of a suitable rating:
at 230 V: 2 Amps on startup, 1,6 amps constant draw in normal operation
a 115 V: 4,2 Amps on startup, 3,2 amps constant draw in normal operation
Locate the mains cable which exits the base of the unit and connect as shown below:
protection
The use of a thermal magnetic circuit breaker is recommended for each AR 250 C.
A good earth connection is essential for the correct operation of the fixture. Strict adherence to regulatory norms is strongly recommended.
Warning: AR 250 C. must be earthed; never install the unit unless the yellow/green earth cable
is securely connected.
ground
neutral
live
brown
blue
yellow/green
main
8. Mains connection
9
English
AR 250 C may operate in 3 different modes:
9.1 Automated operation
9.2 Using DMX 512 signal
9.3 Synchronising AR 250 C without DMX 512 signal.
Follow the instructions below which relate to your particular application:
9.1 Automated operation “solo”
AR 250 C. may operate in stand alone mode in the absence of control signal, using a pre-programmed color
changing sequence which can be activated by the dip-switches on the rear panel of the unit.
9.2 Using DMX 512 signal
Control signal is digital, and is transmitted via two pair screened 0.5mm cable.
Connection is serial, utilising the data cables sockets located on the base of the AR 250 C.
signal connection
Connection is to international standards:
Pin 1 gnd = shield
Pin 2 data - = black
Pin 3 data + = white
Connection
Box
Controller
DMX 512
OUT
factory set
main at:
100V
115V
208V
230V
240V
50Hz
60Hz
made in italy by
coemar spa
Castel Goffredo (mn)
Attenzione!
Alta tensione all'interno dell'apparecchio. Togliere
tensione prima di effettuare qualsiasi operazione.
Una buona connessione di terra e' essenziale.
Contenitore molto caldo. Non installare su alcuna
superficie infiammabile. Distanza minima da
materiale infiammabile: 0,5m. Prima di accendere
l'apparecchio e' indispensabile leggere il manuale
di istruzioni; importanti
informazioni di
sicurezza.
Warning!
High voltage inside.
Caution: hot lamp. Disconnect
from power supply before opening.
A good ground connection is essential.
Case is very hot. Do not install on flammable
surfaces. Min. Distance from flammable materials
to all exterior surfaces:0,5m. Important safety
information, see instruction manual before use.
DMX OUT DMX IN
230v
ie max: 2A
ie: 1,6A
max temp ext:
150°C
ta max:
35° C
cos
ϕ:
0,85
IP 44
2 m
2 m
alto/top
115v
ie max: 4,2A
ie: 3,2A
Weight: Kg 16,5
outin
1 - shield - GND
2 - black - data -3 - white - data +
Connect
to other
AR
250C
factory set
main at:
100V
115V
208V
230V
240V
50Hz
60Hz
made in italy by
coemar spa
Castel Goffredo (mn)
Attenzione!
Alta tensione all'interno dell'apparecchio. Togliere
tensione prima di effettuare qualsiasi operazione.
Una buona connessione di terra e' essenziale.
Contenitore molto caldo. Non installare su alcuna
superficie infiammabile. Distanza minima da
materiale infiammabile: 0,5m. Prima di accendere
l'apparecchio e' indispensabile leggere il manuale
di istruzioni; importanti
informazioni di
sicurezza.
Warning!
High voltage inside.
Caution: hot lamp. Disconnect
from power supply before opening.
A good ground connection is essential.
Case is very hot. Do not install on flammable
surfaces. Min. Distance from flammable materials
to all exterior surfaces:0,5m. Important safety
information, see instruction manual before use.
DMX OUT DMX IN
230v
ie max: 2A
ie: 1,6A
max temp ext:
150°C
ta max:
35° C
cos
ϕ:
0,85
IP 44
2 m
2 m
alto/top
115v
ie max: 4,2A
ie: 3,2A
Weight: Kg 16,5
in out
3
2
1
1 - shield - GND
2 - black - data --
3 - white - data +
1 - shield - GND
2 - black - data --
3 - white - data +
9. Signal connection
10
English
9.3 Synchronizing AR 250 C without DMX 512 signal.
Multiple AR 250 C units may be interconnected in the absence of DMX 512 signal, operating simply via the inbuilt programs
within the AR 250 C.
All AR 250 Cs connected will operate simultaneously with one unit acting as MASTER and all subsequent units as a SLAVES.
Determine which of the AR 250 C will act as master.
Connection should be to international
standards:
Pin 1 gnd = shield
Pin 2 data - = black
Pin 3 data + = white
Ensure that all data conductors are isolated from one another and the metal
housing of the connector.
Pin 1 should never be connected to
mains power.
master slave
Connection
Box
factory set
main at:
100V
115V
208V
230V
240V
50Hz
60Hz
made in italy by
coemar spa
Castel Goffredo (mn)
Attenzione!
Alta tensione all'interno dell'apparecchio. Togliere
tensione prima di effettuare qualsiasi operazione.
Una buona connessione di terra e' essenziale.
Contenitore molto caldo. Non installare su alcuna
superficie infiammabile. Distanza minima da
materiale infiammabile: 0,5m. Prima di accendere
l'apparecchio e' indispensabile leggere il manuale
di istruzioni; importanti
informazioni di
sicurezza.
Warning!
High voltage inside.
Caution: hot lamp. Disconnect
from power supply before opening.
A good ground connection is essential.
Case is very hot. Do not install on flammable
surfaces. Min. Distance from flammable materials
to all exterior surfaces:0,5m. Important safety
information, see instruction manual before use.
DMX OUT DMX IN
230v
ie max: 2A
ie: 1,6A
max temp ext:
150°C
ta max:
35° C
cos
ϕ:
0,85
IP 44
2 m
2 m
alto/top
115v
ie max: 4,2A
ie: 3,2A
Weight: Kg 16,5
out
Connect
to other
AR 250C
(slave)
factory set
main at:
100V
115V
208V
230V
240V
50Hz
60Hz
made in italy by
coemar spa
Castel Goffredo (mn)
Attenzione!
Alta tensione all'interno dell'apparecchio. Togliere
tensione prima di effettuare qualsiasi operazione.
Una buona connessione di terra e' essenziale.
Contenitore molto caldo. Non installare su alcuna
superficie infiammabile. Distanza minima da
materiale infiammabile: 0,5m. Prima di accendere
l'apparecchio e' indispensabile leggere il manuale
di istruzioni; importanti
informazioni di
sicurezza.
Warning!
High voltage inside.
Caution: hot lamp. Disconnect
from power supply before opening.
A good ground connection is essential.
Case is very hot. Do not install on flammable
surfaces. Min. Distance from flammable materials
to all exterior surfaces:0,5m. Important safety
information, see instruction manual before use.
DMX OUT DMX IN
230v
ie max: 2A
ie: 1,6A
max temp ext:
150°C
ta max:
35° C
cos
ϕ:
0,85
IP 44
2 m
2 m
alto/top
115v
ie max: 4,2A
ie: 3,2A
Weight: Kg 16,5
in out
1 - shield - GND
2 - black - data --
3 - white - data +
1 - shield - GND
2 - black - data --
3 - white - data +
11
English
To perform the operations which follow, from sections 10 to 16, with the exception of 15, the projector housing should be open. If
you have since closed the unit up, reopen the housing as described in section 4.
After having followed the preceding steps, turn on power to the unit.
If you have chosen to control the AR 250 C using a DMX 512 controller, you should always turn on the power to the controller first.
The fixture will perform a reset function on its internal motors. This will last 30 seconds, after which it will be subject to the external
signal from the controller.
Ventilation
The projector is fitted with 2 fans for forced cooling of the unit.
The two fans are directly controlled by the on-board software and may be switched off on powering up, depending upon the settings of the unit’s dip switches. They may never be switched off when the lamp is turned on.
To turn the fans on, you will need to switch on the lamp or alter the fan dip switch setting to ON. Factory default setting for dipswitches are DMX Address “1” lamp on.
DMX 512 signal reception
Upon being powered up, the projector will proceed with its reset function. On completion of this, the led will flash if the projector
is correctly receiving DMX 512 signal.
If the led remains off, the projector is not receiving signal correctly. Check the cabling and the functioning of the controller.
turning on the power with no dmx signal connected
After being powered up, the projector will perform a reset. When completed, the led will remain off, indicating that the fixture is not
receiving DMX 512 control signal.
fan
alert
lamp
status
DMX
ON ON
reset
dip-switches
1248163264128 256
PR 1 PR 2 PR 3 PR 4 T 1 T 2 SP 1 SP2
all PR
DMX addresses, ID personality or built in program and speed
OFF - DMX addressing, ID personality
ON - built in program control
test
fan ON
lamp ON
DR1
remote
motor
calibration
colour
mode inhibit
all OFF for slave
10. Powering up
Important Information
12
English
Each AR 250 C utilizes 4 channels of DMX signal for complete control of all its functions.
To ensure that each unit accesses the correct signal, it is necessary to correctly address each fixture. Any number between 1 and 508
can be generated via the dip-switches of the AR 250 C..
This procedure must be carried out on every unit being utilized, positioning the dip-switches to either ON or OFF depending upon
what DMX address is required.
The DMX address of a particular projector is the sum total of the dip-switches settings, for example:
DMX 42 is obtained by switching the dip-switches values 32+8+2 to ON
DMX 82 is obtained by switching the dip-switches values 64+16+2 to ON
The diagram below shows how to set the dip switches to their ON position, setting the address to DMX 1.Obviously, any DMX
address can be achieved by adding together the values achieved when switching on the respective dip switches.
es. dmx address n° 1
The first projector will utilize DMX address 1; a projector thus addressed will respond to commands on channels 1 to 4 from the
DMX 512 controller. A second projector should be addressed as 5 a third as 9 and so on until the final unit has been addressed.
Ensure that none of the DMX values you assign overlap. This will ensure that each projector can have all its functions individually
addressed by the console.
To learn further about the individual operation of each function of the AR 250 C, refer to section 12 of this manual “Operating
via DMX 512 signal”.
ON
dip-switches
1248163264128256
11. DMX addressing
13
English
AR 250 C is able to operate via DMX 512 signal. Connection should be as described as in section ”9.2 Operation via DMX
512 signal”.
If the instructions in this manual have been carried out to this point, the 6 channels of your DMX 512 controller will have control over all the functions of the AR 250 C as shown in the following table.:
to ignite the lamp
to ignite the lamp channel 4 must have a value between 242 and 255; to turn it off, channel 4 must have a value between 11 and
30.
The lamp can be set to ignite by default by setting dip switch #3 to On. Once the
lamp is on, the lamp status led will illuminate.
Dip switch #3 in the On position will supercede DMX control.
ON ON
lamp ON
channel function type of control effect decimal percentage
1 colors step Open/white 0-24
0-9.4
step or proportional
depending on ch. 2
color 1 25-49
9.8-19.2
step or proportional
depending on ch. 2
color 2 50-74
19.6-29
step or proportional
depending on ch. 2
color 3 75-99
29.4-38.8
step or proportional
depending on ch. 2
color 4 100-127
39.2-49.8
proportional Forwards rainbow effect from fast to slow 128-190
50.2-74.5
step No rotation 191-192
74.9-75.2
proportional Backwards rainbow effect from slow to fast 193-255
75.6-100
2 color mode step colors (channel 1) steps 0-127
0-49.8
step colors (channel 1) proportional 128-255
50.2-100
3
Auto
function
step No effects 0-9
0-3.5
proportional Auto program 1 (color sequence without white) speed from fast to slow 10-61
3.9-23.9
proportional Auto program 2 (full color sequence) speed from fast to slow 62 -11 3
24.3-44.3
proportional Auto program 3 (color sequence with half color) speed from fast to slow 114-165
44.7-64.7
proportional Auto program 4 (color sequence including continuos rotation, speed from fast to slow) 166-217
65.1-85
step Random program 218-240
85.4-94.1
step All programs 241-255
94.5-100
4
Lamp
on/off/
reset
step Park (no function) 0-10
0-3.9
program
wait time
control
step lamp off 11-30
4.3-11.7
step motor reset (only once) 31-60
12.1-23.5
step Program stop 61-80
23.9-31.3
proportional Selected auto-program pause time control (1 sec/5 min) 81 -24 1
31.7-94.5
step lamp on 242-255
94.9-100
3
color wheel
off-set
proportional proportional offset of the colour wheel motor, press reset button to record
0-255 0-100
Dip-switches can inhibit lamp off function
note 1: lamp on/off and reset have a delay time of 6 second to prevent accidental activation.
note 2 :on/off lamp mode is not affected unless an opposite value is received
note 3 :Dip-switch 14 ON change channel 3 function
Chart name: DMX 512
Date: 05/2002
Fixture type: AR 250 C
12. Operating via DMX 512 signal
14
English
AR 250 C can operate automatically, running a series of internally recorded programs whose settings are determined by the dip
switch settings imposed by the operator.
No signal cable should be connected to the fixtures data input, as described in section 9.1 “Signal connection for automated “solo” operation”.
Activating automated operation
Set to ON the dip-switch named On-built in program control. From this moment, the dip-switches 1 to 9 may be used to adjust
the various parameters for automated color changes: program selection, fade times and speed.
Selecting automated color change programs.
Dip-switches from PR1 to PR4 (program 1 to program 4), when switched to the ON position, activate preset color change
programs.
The 4 in-built programs have the following features:
Program 1: all colors, with the exception of open white, in a smooth, slow crossfade sequence
Program 2: all colors in a smooth, slow crossfade sequence
Program 3: all colors, with the exception of open white, in sequence.
Program 4: all colors in sequence.
Selecting the hold time
Dip-switches T1 and T2 allow for one of 4 hold times for the various colors
Selecting the fade speed
Dip-switches SP1 and SP2 allow for one of 4 fade times to be selected:
All programs in continuous sequence
Dip switch All PR in the ON position allows for all programs to be replayed in sequence automatically and continuously.
SP1 SP2 speed
off off fast
on off medium
off on medium slow
on on slow
T1 T2 t (sec.)
off off 3
on off 10
off on 3 0
on on 60
Important note:
Only one program at a time may be selected.
ON
ON - built in program control
PR 1 PR 2 PR 3 PR 4 T 1 T 2 SP 1 SP2
all PR
built in program and speed
13. Dip-switch settings for automated “solo” operation.
15
English
Multiple AR 250 C. can be operated in the absence of control signal by executing internally stored, pre-recorded programs.
Projectors correctly connected together may operate in synchronised mode, the AR 250 C receiving signal being denominated as
“slave” units and those generating control signal designated as “master” units.
To activate this automated function, projectors must be connected together as described in the section entitled 9.3. “Synchronising
multiple AR 250 C fixtures without using DMX 512”; No signal cables should be connected to the external XLR3 sockets.
Power up the projector and use the dip-switches to adjust to the correct settings.
14.1 “Masters”
AR 250 C may operate automatically with output in the form of pre-recorded programs, as described in section “9.3.
Synchronising multiple AR 250 C fixtures without using DMX 512” Only one unit may be designated as “master”.
Selecting a master unit is simply a matter of convenience and accessibility to the dip-switches:
Activating “auto” mode
Set to ON the dip-switch named On-built in program control. From this moment, the dip-switches 1to 9may be used to adjust
the various parameters for automated color changes: program selection, fade times and speed.
Selecting automated color change programs.
Dip-switches from PR1 to PR4 (program 1 to program 4), when switched to the ON position, activate preset color change
programs.
The 4 inbuilt programs have the following features:
Program 1: all colors, with the exception of open white, in a smooth, slow crossfade sequence
Program 2: all colors in a smooth, slow crossfade sequence
Program 3: all colors, with the exception of open white, in sequence.
Program 4: all colors in sequence.
Selecting the hold time
Dip-switches T1 and T2 allow for one of 4 hold times for the various colors
Selecting the fade speed
Dip-switches SP1 and SP2 allow for one of 4 fade times to be selected.
Running programs in a continuous sequence
Setting dip-switches All PR in the ON position causes all the pre-recorded programs to run in an automated continuous sequence.
SP1 SP 2 speed
off off fast
on off medium
off on medium/slow
on on slow
T1 T2 t (sec.)
off off 3
on off 10
off on 30
on on 60
Important note:
Only one program at a time may be selected.
ON
ON - built in program control
PR 1 PR 2 PR 3 PR 4 T 1 T 2 SP 1 SP2
all PR
built in program and speed
14. Operating multiple AR 250 C in synchronised mode without DMX 512
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English
14.2 “slaves”
All projectors which are connected to a “Master” unit should be set to “Slave”. Connections should be as described in section “9.3
Synchronising multiple AR 250 C fixtures without DMX 512”.
“Slave” units are recognisable since they have connections made to both XLR sockets in their base, except for the final unit in the
chain which has only one connection to its “DMX IN”.socket.
To set projectors to “Slave” mode, it is necessary to simply set dip-switches 1 to 9 in the OFF position and the On-built in
program control dip switch to
ON
ON
ON - built in program control
PR 1 PR 2 PR 3 PR 4 T 1 T 2 SP 1 SP2
all PR
DMX addresses, ID personality or built in program and speed
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The control panel of the AR 250 C. is fitted with a further 6 additional dip-switches to those described in section 13. These
are used to alter several parameters of the unit.
Testing the projector
Setting the test dip-switch to the ON position will cause the AR 250 C to carry out a self-test function.
Fans
Setting the fan dip-switch to the ON position will cause the fans to remain on at all times the projector is powered up. In the OFF
position, the fans will operate only when the lamp is switched on.
Lamp control
With the lamp dip-switch in the ON position, the lamp will remain on at all times the projector is powered up. In the OFF position,
the lamp will be controlled via DMX signal.
Motor calibration
The motor calibration dip-switch in the ON position will allow for motor offsets to be recalibrated.
For further information about this, read section 24. Electronic motor alignment.
Inhibiting color changes
The color mode dip-switch will inhibit color change when in the ON position by over-riding DMX channel 2 (which controls color
changing).
ON ON
colour
mode inhibit
ON ON
motor
calibration
ON ON
lamp ON
ON ON
fan ON
ON ON
test
15. Dip-switch functions
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Led: Fan alert
The Fan alert led indicates that the fans have malfunctioned:
Led ON: one or other of the fans are not operating - test them separately.
Led OFF: correct fan operation
Led: Lamp status
The lamp status led indicates the lamp functioning:
Led ON: lamp is on
Led OFF: lamp is off
Led: DMX
The DMX led indicates the DMX input state:
Led flashing ON: signal is present
Led OFF: no signal present
Reset button
Pressing the reset button will cause the fixture to recalibrate its motors.
dip-switches
reset
ON ON
reset
dip-switches
dip-switches
lamp
status
fan
alert
dip-switches
16. Auxiliary led and reset button functions
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After having powered up the projector and having established DMX 512 control or set it to operate automatically, the following
mechanical adjustments should be carried out in order to maximise the output of the projector in its current installation.
17.1 Adjusting tilt angle
Loosen the two adjustment bolts on the sides of the body which allow the body to tilt (+90° -45°).
After having adjusted the unit to the required tilt, firmly tighten both bolts to avoid the unit slipping out of position.
17. Mechanical adjustments
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17.2 Altering beam angles by inserting lenses.
Several optional and interchangeable lenses may be used to vary the beam characteristics in particular applications.
All filters are rotatable through 360°
- Beam shape: circular
Diffusion lens
1/2 peak angle: 9,5°
1/10 peak angle: 20°
-Beam shape: circular
Prismatic, semi-diffusion lens
1/2 peak angle: 13,5°
1/10 peak angle: 31°
- Beam shape: square
Prismatic, maximum diffusion lens
1/2 peak angle: 71°
1/10 peak angle: 71°
- Beam shape: rectangular
Prismatic outline/shaped lens
vertical projection
1/2 peak angle: 24°
1/10 peak angle: 40°
horizontal projection
1/2 peak angle: 55°
1/10 peak angle: 68°
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Prior to changing lenses, it is advisable to turn off the lamp; to facilitate the replacement operation, it is advisable to rotate the body
of the projector through 90° with respect to the base.
1) Loosen the 6 screws (A) using an appropriate screwdriver.
2) Rotate and remove the fixing ring.
3) Remove the currently installed lens.
5) After having inserted a new lens, replace the retaining ring and refasten the screws.
Care should be taken in carrying out this procedure; the seal should be correctly seated and the screws should be firmly tightened in order to maintain the protection rating of the unit.
The drain hole.(see diagram) should never be obstructed.
4) Insert the new lens most suited to your particular application. All lenses are rotatable through 360°
Attention
Direct exposure to the output of the unit is not recommended.
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If the factory preset operating voltage and frequency do not correspond to those in use in your country of operation, you may alter
the settings as described in the following paragraphs.
Incorrect selection of operating voltage and frequency will seriously compromise the functioning of the projector.
Opening the projector
To carry out the following procedures, the projector housing should be open, Instructions for opening up the unit can be found in
section 4 of this manual.
18.1 Selecting the voltage on the autotransfomer
After having opened up the rear of the unit:
1) Locate the circuit board panel and remove the screws which fix it in place
2) Locate the autotransformer on the left of the unit.
3) Disconnect cable 8 and move it to the required voltage. To ensure the corr ect selection, refer closely to the sticker attached to the
autotransformer (240/230/208/115/100).
Connection 9 should not be moved under any circumstances. If in doubt, consult the circuit diagram or refer the unit to specialist
trained personnel.
4) For voltages in the range 208/230/245 V, utilize a fuse rated at 5Amp T (Time Delay) 250 VAC 5 x 20mm Ceramic. For voltages
in the range 100/115V utilize a fuse rated at 8 Amp T (Time Delay) 115 VAC 5 x 20mm Ceramic, as indicated in the diagram.
5) Operating frequency may now be set (if necessary) as shown in the next section.
18. Manually altering the operating voltage and frequency
(Reserved for technical staff only)
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English
18.2.Selecting the frequency of the power supply of the AR 250 C.
After having removed the rear panel of the AR 250 C. and removed the circuit board panel, as shown previously:
1) Locate the power supply on the right of the base.
2) Select from either 50 or 60Hz by moving cables 10 and 11 to the required position. To ensure you have selected the correct tap,
refer to the sticker located on the power supply.
3) Connection 16 should not be moved under any circumstances. If in doubt, consult the circuit diagram or refer the unit to
a trained technician.
Attention!
Incorrect selection of either the voltage or the frequency will immediately null and void the warranty
of the fixture and may cause irreparable damage.
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English
Several maintenance operations may require the front housing of the unit to be removed.
After having opened up the rear housing of the AR 250 C as described in section 4, proceed as follows:
1) Loosen the 6 screws (A) using an appropriate screwdriver.
2) Rotate and remove the fixing ring.
3) Remove the lens.
4) Remove the 2 screws (B).
5) Slide the front housing of the unit away from the rubber seal.
NOTE: When replacing the housing, you must ensure that the housing (B) is seated correctly into the rubber seal (C); then repla-
ce and retighten all the screws.
The procedure must be strictly adhered to to ensure that the AR 250 C maintains its protection rating.
Attention!
Remove mains power prior to opening up the unit.
The internal temperature of the unit may reach 250°C (482ºF) after 5 minutes, with a peak of 350°C (662ºF). Ensure that the lamp
is cool prior to removing. The projector should only be opened after it has been allowed to stand and cool for 10 minutes after it has
been turned off.
19. Opening the front of the projector (reserved for technical staff)
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English
A thermal sensor in the body of the AR 250 C protects the fixture against over heating.
The sensor operates by removing power to the lamp should the operating temperature exceed the factory preset. This may be due
to several factors, including the lack of circulation around the unit, high ambient temperature, or the malfunction of an on-board fan.
The sensor will reset itself once the temperature has returned to an acceptable level, and will continue to monitor the internal temperature of the unit.
The 2 fans are controlled by a servo-control system. The main PCB provides power to the fans and keeps track of the fan blade
speed. If a discrepancy exists between the fan speed and the expected fan speed, the lamp will be automatically turned off after 5
seconds of incompatible signals.
In the case of fan malfunction, after the lamp has turned off, the fan led will turn on to notify the user that there has been a fan failure. Should this occur, we recommend that you open up the projector housing and clean the fans thoroughly, as this is generally
the main cause of problems in this area.
While every possible precaution has been taken to ensure the tr ouble-free operation of your AR 250 C, the following periodic maintenance is highly recommended. We recommend that the voltage to the unit be removed prior to any maintenance procedure
taking place.
Periodic cleaning
Even a fine layer of dust can reduce the luminous output substantially. Regularly clean all lenses, dichroic filters and the reflector
using a soft cotton cloth, dampened with a specialist lens cleaning solution.
Fans and air passages
The fans and air passages must be cleaned approximately every 6 weeks. Time between cleaning will vary due to site specific conditions in which the projector is operating. Suitable tools for performing this type of maintenance are a brush and a common vacuum
cleaner or an air compressor.
The fans are located beside the lamp assembly.
Air intakes
The air intakes require regular cleaning to maximise the efficiency of the cooling system. These intakes should be cleaned approximately every 4 weeks. Time between cleaning will vary due to site specific conditions in which the projector is operating. Suitable
instruments for performing this type of maintenance are a brush and a common vacuum cleaner or an air compressor. Should this
not suffice, it may be advisable to soak the intakes in a detergent solution.
Filters and dichroics
For a thorough cleaning of the filters and dichroic lenses, it may be best to refer the unit to a trained technician, as they are located
internally to the unit.
Periodic maintenance
Lamp
The lamp should be replaced at end of life or if there is any observable damage or deformation due to heat. This will avoid the danger of non-passive end of life.
Mechanicals
Periodically check all mechanical devices for wear and tear, replacing them if necessary. Periodically check the lubrication of all components, particularly the parts subject to high temperatures. If necessary, lubricate with suitable lubricant, available from your ETC
distributor. It is strongly suggested the use of an oil-based product rather than a greasy lubricant, to avoid the accumulation of dust
and the consequent clogging of the mechanisms. Also, make sure you run this maintenance routine regularly and thoroughly.
Electronic components
Check all electrical components for correct earthing and proper attachment of all connectors, refastening if necessary.
Replacing the fuse
The AR 250 C. is fitted with two fuses. To replace the fuse, it is necessary to remove the rear housing, as previously described in
this manual. The two fuses are located on the rear panel and the motor control circuit board. Use a multimeter to check the fuse,
replacing any faulty or damaged fuses with ones of equal value, dimensions and characteristics. These are described on the
adjacent sticker.
115VAC units--Fuse 5Amp T (Time Delay) 250VAC 2x20mm Ceramic.
230VAC units--Fuse 8Amp T (Time Delay) 115VAC 5x20mm Ceramic.
Attention!
Once maintenance has been completed, ensure that all seals are replaced correctly when refitting the housing.
Failure to do so will result in the unit not maintaining it protection rating and may result in damage occurring.
Attention
The housing may be opened as described in section 4
22. Maintenance
21. Servo-controlled fans
20. Thermal protection
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English
The AR 250 C allows for the electronic alignment of the projector’s motors. This procedure is performed at the factory. It may be
useful to perform this procedure in the case of internal components being replaced.
Altering the factory settings may radically alter the functioning of the projector. Carefully read all of the following prior to
attempting any changes.
electronic calibration
IMPORTANT NOTE: This procedure can only be undertaken if the projector is correctly receiving DMX 512 signal.
To undertake this procedure:
1) Select a DMX number as required from 1 to 512 by moving the respective dip-switches to the ON position, while simulta-
neously selecting the motor calibration.
From this moment on, the third DMX channel pertaining to this fixture, say DMX 3, no longer allows for program selection, (as
shown in the DMX table),but now controls the motor offset of the color wheel. The other functions on respective channels DMX
1,2 and 4 remain the same.
For example, DMX address 1:
2) Insert a color into the beam of light controlled by DMX 1
3) Adjust the offset (calibration) of the color wheel by utilising control channel DMX 3.
4) Check the alignment of the individual color in the optical path of the projector controlled by channel 1.
5) When the desired offset has been obtained, press the reset button to record the calibration setting.
channel function type of control effect decimal percentage
1 colors step Open/white 0-24
0-9.4
step or proportional
depending on channel 2
color 1 25-49
9.8-19.2
step or proportional
depending on channel 2
color 2 50-74
19.6-29
step or proportional
depending on channel 2
color 3 75-99
29.4-38.8
step or proportional
depending on channel 2
color 4 100-127
39.2-49.8
proportional Forwards rainbow effect from fast to slow 128-190
50.2-74.5
step No rotation 191-192
74.9-75.2
proportional Backwards rainbow effect from slow to fast 193-255
75.6-100
2 color mode step colors (channel 1) steps 0-127
0-49.8
step colors (channel 1) proportional 128-255
50.2-100
3
color wheel
off-set
proportional proportional offset of the colour wheel motor, press reset button to record 0-255
0-100
4
Lamp
on/off/
reset
step Park (no function) 0-10
0-3.9
program
wait time
control
step lamp off 11-30
4.3-11.7
step motor reset (only once) 31-60 12.1-23.5
step Program stop 61-80 23.9-31.3
proportional Selected auto-program pause time control (1 sec/5 min) 81-241 31.7-94.5
step lamp on 242-255 94.9-100
ON ON
dip-switches
1248163264 128 256
motor
calibration
Attention
This section is reserved for technicians only.
23. Electronic motor alignment
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English
To return to normal operation, return the motor calibration dip-switch to the OFF position.
Spare parts for the AR 250 C are available from ETC
Accurate description of the fixture, model number, and type will assist us in providing for your requirements in an efficient and effec-
tive manner.
24. Spare parts
ON ON
dip-switches
1248163264 128 256
motor
calibration
OFF
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English
Americas
3030 Laura Lane, P.O. Box 620979, Middleton, Wisconsin 53562-0979 USA Tel: +608 831 4116 +800 688 4116 Fax: +608 836 1736 +800 555 8912
Europe
Unit 5, Victoria Industrial Estate, Victoria Road, London W3 6UU, UK Tel: +44 (0)20 8896 1000 Fax: +44 (0)20 8896 2000
Asia
Room 605-606, Tower III Enterprise Square, 9 Sheung Yuet Road, Kowloon Bay, Kowloon, Hong Kong Tel: +852 2799 1220 Fax: +852 2799 9325
W
eb: www.etcconnect.com Email: (US) mail@etcconnect.com (UK) mail@etceurope.com (Asia) mail@etcasia.com
Service: service@etcconnect.com
Toll free: 800 775 4382 Comments about this document: techcomm@etcconnect.com
Copyright © 2003 Electronic Theatre Controls, Inc. All Rights Reserved. Product information and specifications subject to change.
7095M1002
Rev A Released 5/31/02
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