Barco DP2K-20CLP, DP2K-15CLP Safety Manual

DP2K CLP series

Safety manual

R5906714/01
09/05/2016

Barco NV
President Kennedypark 35, 8500 Kortrijk, Belgium
Phone: [phone]
Fax: [phone]
Support: www.barco.com/en/support
Visit us at the web: www.barco.com

Printed in Belgium

1. SAFETY

About this chapter

Read this chapter attentively. It contains important information to prevent personal injury while installing and using your DP2K­CLP series projector. Furthermore, it includes several cautions to prevent damage to your DP2K-CLP series projector. Ensure that
you understand and follow all safety guidelines, safety instructions and warnings mentioned in this chapter before installing and
using the DP2K-CLP series projector. After this chapter, additional “warnings” and “cautions” are given depending on the procedure.
Read and follow these “warnings” an d “cautions” as well.

Clarification of the term “DP2K-CLP series” used in this document

When referring in this document to the term “DP2K-CLP series” means that the content is applicable for following Barco products:

• DP2K-15CLP

• DP2K-20CLP

Barco provides a guarantee relating to perfect manufacturing as part of the legally stipulated terms of guar­antee. Observing the s pecification m entioned in this chapter is critical for projector performance. Neglecting
this can result in loss of warranty.

Overview

• General considerations

• Important safety instructions

• Product safety labels

• High Brightness precautions: Hazard Distance (HD)

• HD for fully enclosed projection systems

• HD in function of modifying optics

1. Safety

1.1 General considerations

General safety instructions

• Before operating this equipment please read this manual thoroughly a nd retain it for future reference.

• Installation and preliminary adjustments should be performed by qualified Barco personnel or by authorized B arco service deal­ers.

• All warnings on the projector and in the documentation manuals should be adhered to.

• All instructions for operating and use of this equipment m ust be followed precisely.

• All local installation codes should be adhered to.

Notice on safety

This equipment is built in accordance with the requirements of the international safety standards IEC60950-1, EN60950-1,
UL60950-1 and CAN/CSA C22.2 No.60950-1, w hich are the safety standards of information technology equipment including
electrical business equipmen t. These s afety standards impose important requirem ents on the use of safety critical components,
materials and insulation, in order to protect the user or operator against risk of electric shock and energy hazard and having access
to live parts. Safety standards also impose limits to the internal and external temperature rises, radiation levels, mechanical stability
and strength, enclosure construction and protection against the risk of fire. Simulated single fault condition testing ensures the
safety of the equipment to the user even whe n the equipment’s normal operation fails.

Notice on optical radiation

This projector embeds extremely high b rightness (radiance) lasers; this laser light is p rocessed through the projectors optical path.
Native laser light is not accessible by the
optical path, representing a larger source and lower radiance value than native laser light. N evertheless t he projected light repre­sents a significant risk for the human eye when exposed directly within the beam. This risk is not specific related to the characteristics
of laser light but solely to the high the

Thermal retinal eye injury is possible when exposed within the Hazard Distance (HD). The HD is defi ned from the projection lens
surface towards the position of the projected beam where the irradiance equals the maximum per missible exposure as described in
the chapter “Hazard Distance”.

end user in any use case. The light exiting the projection lens has b een defused within the

rmal induced energy of the light source; which is equivalent with lamp based systems.

R5906714 DP2K CLP SERIES 09/05/2016

1

1. Safety

WARNING: No direct exposure to the beam within the ha zard distance shall be permitted, RG3 IEC 62471-

5:2015

CAUTION: Use of controls or adjustments or performance of procedures other than those specified he rein

may result in hazardous radiation exposure.

Restricted access location

This product may only be installed in a r estricted access location. The definition of a “restricted access location" is a location for
equipment where both of following applies:

• Access can only be gained by SERVICE PERSO NN EL or by OPERATORS who have been instructed about the reasons for
the restriction applied to the location and about the precautions that shall be taken.

• Access is through the us e of the tool or lock and key, or other means of security, and is controlled by the authority responsible
for the location.

Why a restricted acc ess location: This is a RG3 product. Based on international requirements, no person in allowed to enter the
projected beam within the zone between the projection lens and the r elated Hazard Distance (HD). This shall be physically impossible
by creating sufficient separation height or by placing optional bar riers. Within the restricted area operator training is considered
sufficient. The applicable separation heights are discussed in "High Brightness precautions: Hazard Distance (HD)", page 6 .

Restricted access location

This product may only be installed in a r estricted access location. The definition of a “restricted access location" is a location for
equipment where both of following applies:

• Access can only be gained by SERVICE PERSO NN EL or by OPERATORS who ha
the restriction applied to the location and about the precautions that shall be taken.

• Access is through the us e of the tool or lock and key, or other means of security, and is controlled by the authority responsible
for the location.

Why a restricted acc ess location: This is a RG3 product. Based on international requirements, no person in allowed to enter the
projected beam within the zone between the projection lens and the r elated Hazard Distance (HD). This shall be physically impossible
by creating sufficient separation height or by placing optional bar riers. Within the restricted area operator training is considered
sufficient. The applicable separation heights are discussed in "High Brightness precautions: Hazard Distance (HD)", page 6 .

ve been instructed about the r easons for

Users definition

Throughout this manual, the term s SERVICE PERSONNEL and TRAINED PROJECTIONIST refers to persons having appropriate
technical training and experience necessary to be knowledgeable of potential hazards to which they are exposed (including, but not
limited to HIGH V OLTAGE ELECTRIC and ELECTRONIC CIRCUITRY and HIGH BRIGHTNESS PROJECTORS) in performing a
task, and of measures to minimize the potential risk to themselves or other persons. T he term U SER and OPERATOR refers to
any person other than SERVICE PERSONNEL or TRAIN ED PROJECTIONISTS, AUTHORIZED to operate professional projection
systems.

The TRAINED PRO JE CT IONISTS may only perform the maintenance task d escribed in the User & Installation manual. All other
maintenance t asks and service tasks must

The DLP Cinema Systems are intended "FOR PROFESSIONAL USE ONLY" by AUTHORIZED PERSONNEL familiar with potential
hazards associated with high voltage, high intensity light beams generated by lasers. Only qualified SERVICE PERS ONNE L and
TRAINED PRO JE CTIONIST S, knowledgeable of such risks, are allowed to perform se rvice functions ins ide the product enclosure.

be performed by qualified SERVICE PERSO NNEL.

Owner’s record

The part number and serial number are printed on a label which is stuck on the respective part. Record these num bers in the spaces
provided below. Refer to them whenever you call upon your Barco dealer reg arding this product.

Product article number

Product serial number

Dealer

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1.2 Important safety instructions

To prevent the risk of electrical shock

• This projector should be operated from an A C power source. Ensure that the m ains voltage and capacity matches the projector
electrical ratings. If you are unable to install the A C requirements, contact your electrician. Do not defeat the purpose of the
grounding.

• Installation according to the local electrical code and regulations by qualified technical personnel o n ly.

• This product is equipped with a three-terminal barrier strip for the connection of a mono p hase line with a separate earth ground
PE. If you are unable to install the AC requirements, contact your electrician. Do not defeat the purpose of the grounding.

• The cross-sectional area of the conductors in the power supply cord shall be not less than 4 mm

• The electronics o f the projector must be pow ered either from a suitable UPS unit or from the power outlet socket (UPS OUTLET)
provided on the projector. For that reason an adapted short power cord (2-pole 3-wire grounding) is added to the projector
accessories to loop through the power.

• The cross-sectional area of the UPS inlet cord shall be not less than 0.75 mm² or AWG 18.

• The provided power output socket (UP S OUTLET) on the projector may only be used to provide power to the projector elec­tronics. Never connect other devices to this power output socket.

• The circuit breaker(s) that must be provided in the power circuit(s) o f the projector is considered as general disconnect switch(es)
to switch off the complete installation.

• Disconnect the power to the projector mains terminals and unplug the power cord at UPS INLET for removal of all power from
the projector.

• Do not allow anything to rest on the power cord. Do not locate this projector where persons w ill walk on the cord.

• Do not operate the projector with a damaged cord or if the projector has been dropped or damaged - until it has been exam ined
and approved for operation by a qualified service technician.

• Position t he cord so that it will not be tripped over, pulled, or c ontact hot surfaces.

• If an extension cord is necessary, a cord with a current rating at least equal to that of the projector should be used. A cord rated
for less amperage than the projector may overheat.

• Never push objects of any kind into this projector through cabinet slots as they may touch dangerous voltage po ints or short
circuit parts tha t could result in a risk of fire or electrical shock.

• Do not expose this projector to rain or moisture.

• Do not immerse or expose this projector in water or other liquids.

• Do not spill liquid of any kind on this pr ojector.

• Should any liquid or solid object fall into the cabinet, unplug the set and have it checked by qualified service personnel before
resuming operations.

• Do not disassemble this projector, alway s take it to an authorized trained service person when service or repair wor k is required.

• Do not use an accessory attachm ent which is not recommended by the manufacturer.

• Lightning - For added protection for this video product during a lightning storm, or when it is left unattended and unused for
long periods of time, unplug it from the wall outlet and disconnect media and communication cables. This will prevent dam age
to the projector due to lightning and AC power-line surges.

2

or AWG 10.

1. Safety

To prevent fire hazard

• Do not place flammable or com bustible m aterials near the projector!

• Barco large screen pr ojection products are designed and manufactured to meet the most stringent safety regu lations. This
projector radiates heat on its external surfaces and from v entilation ducts during normal operation, which is both normal and
safe. E xpo sing fl ammable or combustible materials into close proximity of this projector could result in the spontaneous ignition
of that material, resulting in a fire. For this reason, it is absolutely necessary to leave an “exclusion zone” around all external
surfaces of the pro jector whereby no flammable or combustible m aterials are present. The exclusion zone must be not less
than 40 cm (16”) for all DLP Cinem a projectors. The exclusion zone on the lens side must be at least 5 m. Do not cover the
projector or the lens with any material while the projector is in operation. Keep flammable a nd combustible materials away from
the projector at all times. Mount the projector in a well ventilated area away from sources of ignition and out of direct sun light.
Never expose the projector to rain or moisture. In the event of fi re, use sand, CO
water on an electrical fire. Always have service performed on this projector by authorized Barco service personnel. Always
insist on genuine Barco replacement parts. Never use non-Barco replacement parts as they may degrade the safety of this
projector.

• Ensure no miss a lignm ent can occur. Prolonged long time exposure of black wooden w alls at close distance (< 20cm) can
represent a fir e risk. After alignment the projector shall be securely mounted to the pedestal.

• Slots and openings in this equipment are provi
it from overheating, these openings must not be blocked or covered. The openings should never be blocked by placing the
projector too close to walls, or other similar surface. This projector s hould never be placed near or over a radiator or heat
register. This p rojector should not be pla

• Projection rooms must be well ventilated or cooled in order to avoid build-up of heat. It is necessary to vent hot exhaust air from
projector and cooler to the outside of the building.

• Let the projector cool completely before storing. Remove cord from the projector when storing.

R5906714 DP2K CLP SERIES 09/05/2016

ded for ventilation. To ensure r eliable operation of the projector and to protect

ced in a built-in installation or enclosure unless p roper ventilation is prov ided.

or dry powder fire extinguishers. Never use

2

3

1. Safety

To prevent battery explosion

• Danger of explosion if battery is incorrectly installed.

• Replace only with the same or equivalent type recommended by the manufacturer.

• For disposal of used batteries, always consult federal, state, local and provincial hazardous waste disposal rules and regulations
to ensure proper disposal.

To prevent personal injury

• To prev ent injury and physical damage, always read this m anual and all labels on the system before powering the projector or
adjusting the projector.

• Do not underestimate the weight of the projector. The projector without the top cooler weights ±106 kg (±233.7 pounds). To
prevent personal injury a hoisting tool should be used to lift the projector.

• To prev ent injury, ensure that the lens, cooling system and all c over plates are correctly installed. See installation procedures.

• Warning: high intensity light beam. NEV ER look into the lens ! High luminance could result in damage to the eye.

• Warning: extremely high brightness projector: This projector embed s extremely high brightness (radiance) lasers; this laser
light is processed through the projectors optical path. Native laser light is not accessible by the end user in any use case. T he
light exiting the projection lens has been defused within the optical path, representing a larger source and lower radiance value
than native laser light. Nevertheless the projected light re presents a significant risk for the human eye when exposed directly
within the beam. This risk is not specific related to the characteristics of laser light but solely to the high thermal induced energy
of the light source; which is equivalent with lamp based sys tems.
Thermal retinal eye injury is possible when exposed within the Hazard Distance. The Hazard Distance (HD) is defined from
the projection lens surface towards the position of the projected beam where the irradiance equals the maximum permissible
exposure as described in the chapter "High Brightness precautions: Hazard Distance (HD)", page 6 .

• Based on international requirements, no person in allowed to enter the projected beam within the zone between the projection
lens and the related Hazard Distance (HD). This sh all be physically impo
placing optional barriers. Within the restricted a rea operator training is considered sufficient. The applicable separation heights
are dis cussed in "High Br ightness precautions: Haz ard Distance (HD)", page 6 .

• The projector shall be installed in a restricted access room equipped with a key or security lock preventing untrained persons
entering the Risk Group 3 use zone.

• Switch off the projector before attempting to remove any of the projector’s covers.

• When required to remove all power from the projector (eg during service), always disconnect the power from the projector
mains terminals and UPS INLET connector. Use the disconnect d evice in the building installation to disconnect the power to
the projector mains terminals, and unplug the power cord at the UPS INLET connector if the UPS INLET is s eparately powered.

• Do not place this equipment on an unstable cart, stand, or table. The pr
possible injury to the user.

• Lenses, shields or screens shall be changed if they have become v isibly damaged to such an extent that their effectiveness is
impaired. For example by cracks or deep scratches.

• The as sociated Safety responsible of the unit must evaluate the setup before the unit may be started.

• Never point or allow light to be directed on people or reflective objects within the HD zone.

• All operators shall have received adequate training and b

• Strictly minimize the number of people who have access to the unit. The unit may never be operated without permission of the
responsible for safety.

• Do not put your hand or an y body part in front of the beam.
Do not clean the port window when the projector is switched on.

• For a stand alone cooler, position the tubes so that they will not be tripped over, pulled, or contact hot surfaces.

e a ware of the potential hazards.

ssible by creating sufficient separation height or by

oduct m ay fall, causing serious damage to it and

On servicing

• Do not attempt to service this pr oduct yourself, as opening or removing covers may expose you to dangerous voltage potentials
and risk of electric shock.

• Refer all servicing to qualified s ervice personnel.

• Attempts to alter the factory-set internal controls or to c hange other control settings not specially discuss ed in this manual can
lead to permanent damage to the projector and cancellation of the warranty.

• Remove all power from the pr ojector and refer s ervi

- W hen the power cord or plug is damaged or frayed.

- If liquid has been spilled into the equipment.

- If the product has been exposed to rain or water.

- If the product does not o perate norm ally when the operating instructions are followed. Adjust only those controls that are

covered by the operating instructions since improper adjustment of the other controls may result in damage and will often
require extensive work by a qualified technician to re

- If the product has been dropped or the cabinet has been damaged.

- If the product exhibits a distinct change in performance, indicating a need for service.

• Replacement parts: When replacement parts are required, be sure the service technician has used original Barco replacement
parts or authorized replacement parts which have the same characteristics as the B arco original part. Unauthorized substitu­tions ma y result in degraded performance and reliability, fire, electric shock or other hazards. Unauthorized substitutions may
void warranty.

4

cing to qualified service technicians under the following conditions:

store the product to normal operation.

R5906714 DP2K CLP SERIES 09/05/2016

1. Safety

• Safety chec k: Upon c ompletion of any service or repairs to this projector, ask the service technician to perform safety checks
to determine that the product is in proper operating condition.

To prevent projector damage

• The air filters of the projector must be cleaned or replaced on a regular basis. Cleaning the booth ar ea would be m onthly­minimum. Neglecting this could result in disrupting the air flow inside the projector, causing overheating. Overheating may lead
to the projector shutting down during operation.

• The pr ojector must always be installed in a m anner which ensures free flow of air into its air inlets.

• If more than one projector is installed in a common projection booth, the exhaust air flow requirements a re valid for EA C H
individual projector system. Note that inadequate air extraction or c ooling will result in decreased life expectancy of the projector
as a whole as well as c ausing premature failure of the lasers.

• In order to ensure that correct airflow is maintained, and that the projector complies with Electromagnetic Compatibility (EMC)
and safety requirements, it should always be operated with all of it’s covers in place.

• Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and to pro tect it from
overheating, these openings must not be blocked or covered. The openings should never be blocked by placing the product
on a bed, sofa, rug, or other similar surface. This product should never be placed near or over a radiator or heat register. The
device shou ld not be placed in a built-in installation or enclosure unless proper ventilation is provided.

• Ensure that nothing can be spilled on, or dropped inside the projector. I f this does happen, switch off and remove all power
from the projector. D o not operate the projector again until it has been checked by qualified se

• Do not block the projector cooling fans or free air movement around the projector. Loose papers or other objects may not be
nearer to the projector than 10 cm (4") on any side.

• Proper operation of the projector can only be guar anteed in table mounting. It is not permitted to use the projector in another
position. See installation procedure for correct installation.

• Special care for Laser Beams: Special care should be used when DLP projectors are used in the same room as high power
laser equipment. D irect or indirect hitting of a laser beam on to the lens can severely damage the Digital Mirror Devices
which case there is a loss of warranty.

• Never place the projector in direct sunlight. Sunlight on the lens can severely damage the Digital Mirror Devices
case there is a loss of warranty.

• Save the original shipping carton and packing material. They will come in handy if you ever have to ship your equipment. For
maximum protection, repack your set as it was originally packed at the factory.

• Remove all power from the projectors mains terminals before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning. Never use strong solvents, such as thinner or benzine or abrasive cleaners, since these will damage
the cabinet. Stubborn stains may be removed with a cloth lightly dampened with mild detergent solution.

• To ensure the highest optical performance and resolution, the projection lenses are specially treated with an anti-reflective
coating, therefore, avoid touching the lens. To remove dust on the lens, use a soft dry cloth. For lens cleaning follow the
instructions precisely as stipulated in the projector manual.

• Rated maximum ambient temperature, t

• Rated humidity = 5% to 85% RH Non-condensed.

• An external frame must be used to stack projectors.

• For functionality and reliability, the projector requires accurate temperature control and cooling. Therefore a liquid cooling sys­tem is provided consisting of liquid circuits inside the projector w hich are connected via hoses to external co olers. Only cooler
models and hoses exclusively developed for this a pplication and approved by Barco are allowed to be used.

• When using t he projector with a stand alone cooler, do no
so that free liquid flow can be guaranteed. Position the tubes so that there is no contact with hot surfaces.

= 35°C (95°F).

a

t stand on the cooling tubes or do not place any object on the tubes

rvice personnel.

TM

TM

in which

in

1.3 Product safety labels

Light beam related safety labels

Label image Label description Label location

Hazard RG3: optical radiation warning symbol

R5906714 DP2K CLP SERIES 09/05/2016 5

1. Safety

Label image Label description Label location

WARNING! DO NO T LOOK INTO THE LIGHT BEAM
NO DIRECT EYE EXPOSURE TO THE BEAN IS
PERMITTED

RG3 IEC EN 62471– 5:2015

CLASS 1 IEC EN 60825–1:2014

HAZARD D ISTANCE: CONSULT SAFETY MANUAL

COMPLIES W IT H 21 C FR 1040 EXCEPT WIT H
RESPECT TO THO SE CHARACTERISTICS
AUTHORIZED BY VARIANCE NUM BE R 2014-V-0285
DATED A PRIL 14, 2016 RISK GROU P 3 LIP IEC
62471:2016

警告！

勿观看光束

眼睛勿直接接触可允许暴露的光束

(RG3 IEC EN 62471-5:2015 CLASS 1 IEC EN
60825-1:2014)

危害距离：请参考

安全手册

DANGER !

NE PAS REGARDER LE FAISCEAU EVITER TOUTE
EXPOSITION DIRECTE DES YEUX AU FAISCEAU

RG3 IEC EN 62471 -5:2015

CLASS 1 IEC EN 60825-1:2014

DISTANCE DE SE CURITE : CONSULTER LE MANUEL
DE SECURITE

Hazard RG3: not for household use symbol

1.4 High Brightness precautions: Hazard Distance (HD)

HD

Hazard Distance (HD) is the distance measured from the projection lens at wh ich the intensity or the energy per surface
unit becom es lower than the applicable exposure limit on the cornea or on the skin. The light beam is considered (to
be) unsafe for exposure if the distance from a person to t

Restriction Zone (RZ) based on the HD

The HD depends on the amount of lumens produced
of modifying optics", page 9 .

To protect untrained end users (as cinema visitors) the installation shall comply with the following installation requirements: O per ­ators shall control access to the beam within the hazard distance or install the product at the h eight that will prevent spectators’
eyes from being in the hazard distance. Radiation levels in excess of the limits will not be permitted at a ny point less than 2.0 (SH
image 1-1) meters above any surface upon w hich persons other than operators, performers, or employees are permitted to stand
or less than 1,0 (SH image 1-1) meters lateral separation from any place where such persons are permitted to be. In non-cinema
environments where unrestrained behavior is reasonably foreseeable, the minimum separation height should be greater than or
equal to 3,0 m to prevent potential exposure, for example by an individual sitting on another individual’s shoulders, within the HD.

These va lues are minimum values and are based on the guidance provided in IEC 62471-5:2015 section 6.6.5.

The end user must understand the risk and apply protective measures based upon the hazard distance as indicated on the label and
in the user information. Installation method, bar riers, detection system or other applicable control measure shall prevent hazardous
eye access to the radiation within the hazard distance.

6

by the projector and the type of lens ins talled. See next chapter"HD in function

he light source is less than the HD.

R5906714 DP2K CLP SERIES 09/05/2016

1. Safety

For example, cinem a projectors that have a HD greater than 1 m and emit light into an uncontrolled area wher e persons may be
present should be positioned in accordance with “the fixed projector installation” parameters, resulting in a HD that does not extend
into the audience area unless the beam is at least 2 m abov e the floor level. In non-cinema en vironments where unrestrained
behavior is reasonably foreseeable, the minimum separation height should be greater than or equal to 3,0 m to prevent potential
exposure, for example by an individual sitting on another individual’s shoulders, within the HD. For example, a sufficiently large
separation height may be achieved by mo unting the image projector on the ceiling or through the use of physical barriers.

For applications installed in t he USA market the above limits do not apply. The relevant minimum separation height is 2.5m (8.2 ft)
and the separation width is defined as 1.0m (3.3 ft) by the FDA CDRH.

RA TH

TH

SW

HD

SW

RZ

RA

SH

RZ

PR

HD

SH

SW

1m

SW

(B) TOP VIEW(A) SIDE VIEW

Image 1-1
ASideview.
B Top view.
RA Restricted Access location (boot area of projector).
PR Projector.
TH Thea ter.
RZ Restriction Zone in the theater.
SH Separation Height.
SW Separation Width.

Based on national requirements, no person is allowed to enter the projected beam within the zone between the p rojection lens and
the related hazard distance (HD). This shall be physically impossible by c reating sufficient separation height or by placing barriers.
The minimum separation height takes into account the surface upon which persons other than operator, performers or employees
are permitted to stand.

On image 1-2 a typical setup i
(RZ) in the theater mus t be established. This can be done by using physical barrier, like a red rope as illustrated in image 1-2.

The restricted a rea s ticker can be replaced by a sticker with only the symbol.

s d isplayed. It must be verified if these minimum requirements are met. If required a restricted z one

RESTRICTED

AREA

RESTRICTED

AREA

Image 1-2

R5906714 DP2K CLP SERIES 09/05/2016 7

PR

1. Safety

1.5 HD for fu lly enclosed projection systems

HD

Hazard Distance (HD) is the distance measured from the projection lens at wh ich the intensity or the energy per surface
unit becom es lower than the applicable exposure limit on the cornea or on the skin. The light beam is considered (to
be) unsafe for exposure if the distance from a person to the light source is less than the HD .

Restriction Zone (RZ) based on the HD

The projector is also suitable for rear projection applications; projecting a beam onto a defuse coated projection screen. As displayed
in image 1-3 two areas sho uld be considered: the restricted enclosed projection area (RA) and the observation area (TH).

RESTRICTED

RA TH

sw

AREA

RESTRICTED

AREA

HDDIFFUSE

RZ

sw

sw

PD

HD

REFLECTION

reflection

); also taking into account a 1 meter lateral

PR

sw

Image 1-3
RA Restricted Access location (enclosed projection area).
PR Projector.
TH Theater (observation area).
RZ Restriction Zone.
PD Projection Distance.
SW Separation Width. Must be minimum 1 meter.

For this type of setup 3 different HD sh all be considered:

• HD as discussed in "High Brightness precautions: Hazard Distance (HD)", page 6 , relevant for intrabeam exposure.

•HD

reflection

•HD

diffuse

: the distance that has to b

: the relevant distance to be considered while observing the defuse surface of the rear projection screen.

e kept restrictive related to the reflected light from the rear projection screen.

As described in "High Brightness precautions: Ha zard Distance (HD)", page 6 , it is mandatory to create a restricted zone w ithin
the beam areas closer than any NOHD. In the enclosed projection area the combination of two restricted zones are relevant: The
restricted zone of the projected beam toward the s creen; taking into account 1 meter Separation Width (SW) from the beam onward.
Combined with the restricted zone related to the rear reflection from the screen (HD
separation.

The HD
projection screen. To determine the HD distance for the used lens and projector model see graphs in chapter "HD in function of

distance equals 25% of the difference between the determined HD distance and the p rojection distance to the rear

reflection

modifying optics", page 9 .

HD

reflection

= 25% (HD – PD)

The light emitted from the screen within the observation shall never exceed the RG2 exposure limit, determined at 10 cm. The
HD

can be neglected if the measured light at th e screen surface is below 5000 cd/m² o r 15000 LUX.

diffuse

8

R5906714 DP2K CLP SERIES 09/05/2016

1.6 HD in function of modifying optics

DP2K-15CLP Hazard Distance

1. Safety

Image 1-4

DP2K-20CLP Hazard Distance

Image 1-5

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