Harman Martin VDO Dotron, Руководство пользователя

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28 VDO Dotron User Manual
Service and maintenance
Warning! Read “Safety information” on page 6 and “Precautions to avoid damage” on page 10
before carrying out service on the VDO Dotron.
Warning! Lock out AC mains power to the installation before servicing.
Warning! Refer any service operation not described in this manual to a qualified service technician.
Important! Excessive dirt buildup causes overheating and may damage the product. Damage
caused by inadequate cleaning is not covered by the product warranty.
The user will need to clean the VDO Dotron periodically. All other service operations on the VDO Dotron
must be carried out by Martin Professional or its approved service agents.
Installation, on-site service and maintenance can be provided worldwide by the Martin Professional Global
Service organization and its approved agents, giving owners access to Martin’s expertise and product
knowledge in a partnership that will ensure the highest level of performance throughout the product’s
lifetime. Please contact your Martin® supplier for details.
Installing optical accessories
Installing one of the optical accessories available from Martin® for the VDO Dotron takes a few seconds. No
tools are required.
Install optical accessories in dry conditions only.
To install an optical accessory:
1. If dots have been in use, allow them to cool.
2. Unscrew the VDO Dotron’s front cover and lift it off the dot.
3. Remove any existing accessory and install the new accessory. If
installing a Lens Array accessory, see below.
4. Screw the front cover back onto the dot. Make sure that the cover is
tight but do not use tools: use hand force only to tighten.
Installing a Lens Array Front
To install an Lens Array accessory:
1. If dots have been in use, allow them to cool.
2. Unscrew the VDO Dotron dot’s front cover A and lift it off the dot.
3. Remove any optical accessory that is already fitted over the LEDs.
4. See Figure 14. Note the position of the three locating posts in the
Lens Array C and the three corresponding locating lugs in the top of
the dot B . This will ensure that each lens in the array sits directly over
an LED in the dot. Place the Lens Array onto the dot with its flat side
facing upwards and rotate it so that each locating post in the Lens
Array fits around a lug in the top of the dot.
5. Without disturbing the position of the Lens Array, screw the front
cover back onto the dot. Make sure that the cover is tight but do not
use tools: use hand force only to tighten.
Cleaning
Cleaning schedules vary depending on the operating environment. It is therefore impossible to specify
precise cleaning intervals for the VDO Dotron. Environmental factors that may result in a need for frequent
cleaning include airborne dust and pollution.
Inspect products frequently to see whether cleaning is necessary. If in doubt, consult your Martin® dealer
about a suitable maintenance schedule.
Figure 14: Installing a Lens
Array Front
A
B
C
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