Harman Martin VDO Dotron, User Manual

Page: 13 / 40

Physical installation 13
Mounting on a surface
Mounting on a surface using Flange Brackets
The Flange Bracket available from Martin® as an optional accessory for the VDO Dotron (see “Accessories”
on page 35) is a mounting plate that is recommended for installing dots on a flat surface.
All fasteners must be suitable for the application and environment. Steel fasteners must be grade 8.8
strength minimum. Stainless steel fasteners must be grade 304 (A2) or better. In marine environments,
stainless steel fasteners must be grade 316 (A4) or better.
To install an VDO Dotron using a Flange Bracket:
1. See Figure 2. Fasten the Flange Bracket to the base of the dot using the supplied M4 x 8 mm
countersunk Torx screws A supplied with the Flange Bracket. Use a torque driver to tighten the screws
to a torque of 2.5 Nm.
2. For each dot, obtain two grade 8.8 (or equivalent strength) M6 (or quarter-inch) fasteners (screws,
screwbolts, etc.) B and screw plugs. You can use M6 machine screws and self-locking nuts if you have
access to the back of the installation surface. Check that fasteners are suitable for the application and
have appropriate corrosion resistance.
3. With reference to the dimensions drawings at the beginning of this manual, prepare two holes with
centers 86 mm (3.4 in.) apart in the installation surface to accept two fasteners B passed through the
holes in the Flange Bracket. Use screw plugs if necessary to ensure a secure installation.
4. Fasten the VDO Dotron and Flange Bracket assembly securely to the surface using two fasteners B per
Flange Bracket.
5. Connect the dot’s input connector C to the output connector of the previous device on the link, either
directly or via a patch cable. Make sure that all connectors are correctly fastened together with locking
rings twisted to ensure a seal.
6. Check that the dot is held securely before you leave it.
Figure 2: Installing using a Flange Bracket
B
A
C
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