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7.6.
ASYMMeTRICAl dipped beam
fig.5
Correct projection on panel.
7.7.
SYMMeTRICAl dipped BeAM
fig.6
When testing symmetrical dipped beams
the projection on the plate should be a
horizontal line.
7.8.
MAIn BeAM
fig.7
It is necessary to obtain a strong bright zone at the
centre of the plate, where the black spot is located.
8. THE LuXMETER
8.1.
In addition to the numerically calibrated scales the luxmeter has a colour coded scale for main beam intensity which should be read as
follows:
8.2.
Main Beam
8.2.1.
Indicator at Red/GReen (BAd/Good) limit: Acceptable for vehicles travelling under 30mph (48km/h) and motorcycles.
8.2.2.
Indicator at the centre of GReen (Good): Acceptable for vehicles travelling over 30mph (48km/h).
8.2.3.
Indicator on BlUe (HAloGen): Acceptable for vehicles with halogen headlights.
9. cALIBRATION
We suggest that the unit has periodic calibration checks in situ. If the unit is covered by a service agreement with the MoT package installer,
they will carry this out on your behalf. You may however, wish to calibrate the unit yourself.
The headlamp beam setter can be recalibrated using a laser alignment calibration unit. We recommend the Sealey AK9999 (available from your
authorised Sealey stockist).
We recommend that the laser calibration device be set up and levelled first of all, the beam setter can then be manoeuvred easily on its stand with
reference to the position of the laser. The laser can be placed on any surface such as a car bonnet, box, table etc of suitable height.
© Jack Sealey limited
Original Language Version
HBS2001 Issue 3 (HF) 14/08/18
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