BEGA 84975 Gobo Floodlight Instruction Manual

: August 22, 2024
: BEGA

Table of Contents

BEGA 84975 Gobo Floodlight
FAQ
Instructions for use
Installation
Inserting a Gobo
Adjusting the Gobo motif size and focus
Overvoltage protection
Replacing the LED module
Accessories
Spares
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BEGA 84975 Gobo Floodlight

Specifications

Lamp Module connected wattage: 21.6 W
Luminaire connected wattage: 24 W
Rated temperature: 25°C – 45°C
Ambient temperature: max 45°C

FAQ

Q: Where can I find Gobo motifs for insertion?

A: Gobo motifs can be found or ordered at www.emea.rosco.com using BEGA article number 84 975 as a reference.

Q: What is the ideal protection against overvoltage for this luminaire?

A: For bounce-free switching contacts, consider using an electronic relay like BEGA 71 320.

Gobo floodlight

BEGA-84975-Gobo-Floodlight-FIG-1

Instructions for use

Application
Floodlights with G½ threaded connection for the projection of Gobo motifs.
Suitable for Gobo motifs in accordance with Rosco default size E.
The floodlight can be bolted together with any female thread G½ according to ISO 228 supplied by others or to BEGA accessories.

Product description

Luminaire made of aluminium alloy, aluminium and stainless steel
BEGA Unidure® coating technology
Clear safety glass
Silicone gasket
Projector lens with adjustable glass lenses. Suitable for Gobos with an outer diameter of 37.5 mm, a max. image diameter of 28 mm and a material thickness of max. 1 mm
Rotation range of floodlight 350°
Swivel range -20°/+100°
Mounting bracket with G½ threaded connection
Thread length: 14 mm
Connecting cable X05BQ-F 5 G 1 mm²
Cable length 1 m
BEGA Ultimate Driver®
Complies with flicker requirements in accordance with IEEE 1789,
DIN IEC/TR 63158, DIN IEC/TR 61547-1
LED power supply unit
220-240 V x 0/50-60 Hz
DC 176-276 V
DALI-controllable
Number of DALI addresses: 1
Basic insulation is provided between the mains and control cables
BEGA Thermal Control®
Temporary thermal regulation to protect temperature-sensitive components without switching off the luminaire
Safety class I
Protection class IP 65
Dust-tight and protection against water jets Impact strength IK06
Protection against mechanical
impacts < 1 joule
Safety mark
Conformity mark
Wind catching area: 0.04 m²
Weight: 2.8 kg
This product contains light sources of energy efficiency class(es) F

Lighting technology

Beam angle 10°-14°

Safety

The installation and operation of this luminaire are subject to national safety regulations. Installation and commissioning may only be carried out by a qualified electrician.
The manufacturer accepts no liability for damage caused by improper use or installation. If subsequent modifications are made to
the luminaire, the person responsible for these modifications shall be considered the manufacturer.

Installation

Screw the floodlight G½ threaded connection firmly into the on-site G½ female thread or BEGA accessory.
G½ threaded connection torque = 40 Nm. Secure the screw connection from loosening on site (if provided with locking screw S, see fig. A).
Check the earth conductor connection between the G½ threaded connection and the on-site G½ female thread.

Adjust floodlight:
Undo hexagon socket screw (wrench
size 5 mm) and hexagon nut (wrench
size 27 mm) and set the desired beam direction (see sketch B, C).

Torque:
Hexagon socket screw = 7 Nm
Hexagon nut = 35 Nm
Secure bolted connection Gß against loosening by tightening the hexagon socket screws (wrench size 2 mm).

BEGA-84975-Gobo-Floodlight-FIG-2

The electrical connection must be carried out with matching protection class and safety class, strain-relieved, with suitable connection terminals (not included in the scope of delivery) at the luminaire power supply cable.
Observe the correct configuration of the connecting cable. Make the mains connection to the brown (L), blue (N) and green-yellow wires (1).
The control cables are connected via the two DALI-labelled wires white-red (wh-rd) and white-black (wh-bl). If these wires are not assigned, the luminaire will work with full light output.

Inserting a Gobo

Open the floodlight:

Loosen the locking pin (hexagon socket wrench SW 2.5) on the back of the floodlight housing. Turn the lens cover clockwise and lift it off.
To insert a gobo, adjust the knurled screw R4 of the gobo holder so that it is in line with the knurled screw R3 below it.
Loosen the three knurled screws R3, turn the lens cylinder clockwise to the stop and lift it off. Remove the retaining ring on the Gobo receptacle and insert the Gobo. Make sure to insert the motif inverted and upside down. Align the Gobo according to the subsequent floodlight position.
Exact alignment is possible in the mounted position via knurled screw R4 within a range of ± 22.5°.
Insert the retaining ring (note the locking lugs) and replace the lens cylinder, turn it clockwise as far as it will go and tighten the three knurled screws R3 hand-tight.

BEGA-84975-Gobo-Floodlight-FIG-3

Adjusting the Gobo motif size and focus

Switch on the floodlight.
The size and focus of the Gobo motif is adjusted by moving the lens holder.
Loosen the two knurled screws R1 and R2 and adjust the lens distance until the desired size is reached.
A larger lens distance will make the motif smaller, a smaller distance will make it larger. Hand-tighten the knurled screw R1.
Use the second lens to adjust optimal focus and then hand-tighten the knurled screws R2. The shields provided (with 20 and 30 mm apertures) are used to optimise the degree of illuminance and sharpness.
Place the shields on the lens cylinder with the side lugs pointing outward to choose the right one.
Finally, insert the side lugs of the shield into the lens cylinder.
The desiccant pouch provided in the delivery must be placed inside the luminaire to ensure max. service life of the electrical components. Remove the desiccant pouch from the foil packaging and place it in the position marked by the red information label immediately before finally closing the luminaire.
Position the lens cover on the floodlight housing so that the notches in the floodlight housing and the lens cover are congruent. Screw on the lens cover clockwise until the stop.
Screw on the locking pin (hexagon socket wrench size 2.5) on the back of the floodlight housing.

Gobo motifs

Gobos made of metal or glass for insertion into the luminaires are not part of the scope of delivery.
You can find or individually order a large selection of Gobo motifs or have them customised to your specifications in the corresponding sizes at www.emea.rosco.com. When placing an order, please enter the BEGA article number 84 975 as a reference.
For Gobo masks with text or logos, we recommend a maximum image width of 24 mm.

Cleaning · Maintenance
Clean luminaire regularly with solvent-free cleansers from dirt and deposits.
Do not use high pressure cleaners.

Overvoltage protection

The electronic components installed in the luminaire are protected against overvoltage in accordance with DIN EN 61547.
To achieve an additional protection against e. g. transients, etc. we recommend separate overvoltage protection components.
You can find them on our website at www.bega.com.
The ideal protection of all electronic components installed in the luminaires is achieved by using bounce-free switching contacts such as an electronic relay (solid-state relay), e.g. BEGA 71 320.

Lamp

Module connected wattage 21.6 W
Luminaire connected wattage 24 W
Rated temperature ta = 25 °C
Ambient temperature ta max = 45 °C

84 975 K3

Module designation LED-1145/930
Colour temperature 3000 K
Colour rendering index CRI > 90
Module luminous flux 2770 lm
Luminaire luminous flux 295 lm
Luminaire luminous efficiency 12,3 lm / W

84 975 K4

Module designation LED-1145/940
Colour temperature 4000 K
Colour rendering index CRI > 90
Module luminous flux 2910 lm
Luminaire luminous flux 310 lm
Luminaire luminous efficiency 12,9 lm / W

Replacing the LED module

The designation of the LED module is noted on a label in the luminaire.
The light colour and light output of BEGA replacement modules correspond to those of the modules originally fitted.
The module can be replaced by qualified persons using standard tools.

Disconnect the system.

Loosen the locking pin (hexagon socket wrench SW 2.5) on the back of the floodlight housing. Turn the lens cover clockwise and lift it off. Undo the 4 mounting screws of the lens unit
(Torx drive T20) and remove the complete lens unit.
Replace LED module.
Please follow the installation instructions for the LED module.
Replace and secure the lens unit.
Switch on the floodlight, check the Gobo motif size and focus, and adjust as needed. Position the lens cover on the floodlight housing so that the notches in the floodlight housing and the lens cover are congruent. Srew on the lens cover clockwise until the stop.
Screw in the locking pin.