
24
VDO Fatron™ Family Safety and Installation Guide
Installing and removing optical accessories
The VDO Fatron must be used with an
optical accessory (diffuser or lens)
installed on the front of the fixture. A
wide range of these accessories is
available from Martin® (see
“Accessories” on page 47). They clip
onto the front of fixtures and can be
installed and removed in seconds.
To aid removal of optical accessories,
we recommend that you use one of the
two solutions available from Martin® for
the VDO Fatron: either the Magnetic
Swiper Test Tool or the Lens Removal
Jaws that can be clipped onto
extra-wide opening pipe grips. See
“Accessories” on page 47.
To install an optical accessory:
1. Block access below the work area and work from a stable platform.
2. See Figure 14. Push one side of the diffuser / lens into the front of the fixture, then push the other side
down also (see
A
) so that both sides clip into place.
To remove an optical accessory:
1. Block access below the work area and work from a stable platform.
2. Grasp the diffuser with pipe grips and the jaws available from Martin®, or press the lever ends of two
Magnetic Swiper Test Tools (see
B
in Figure 14) between one side of the diffuser / lens and the fixture.
Lift the diffuser out of its clip and away from the fixture.
Securing optical accessories with locking screws
See Figure 15. Optical accessories (diffusers and lens arrays) are
secured on the front of the fixture with four M3x6 hex socket
headless set screws (Allen grub screws), two screws at each end
of the fixture. The screws sit in channels in the fixture profile and
engage in cutouts in the back of optical accessories, locking the
accessory laterally to prevent it from sliding.
If you replace the optical accessory on a product, check that the
accessory clips correctly into the front of the fixture and check that
it is held between the four screws. You can adjust the screws with a
hex wrench (Allen key) if necessary, but do not overtighten. Tighten
screws just until you feel resistance and check that the accessory
does not have any sideways play.
Figure 14: Installing and removing a diffuser
B
A
Figure 15: Optical accessory
locking screws
www.audiovias.com
Summary of Contents for Martin VDO Fatron 20
Page 1: ...VDO Fatron User Manual www audiovias com ...
Page 49: ...www audiovias com ...
Page 50: ...www audiovias com ...
Page 51: ...www audiovias com ...