Specifications

Siemens Mobility, Traffic Solutions

Sopers Lane, Poole, Dorset

BH17 7ER

Version 10 Page 32 of 120 Status Issued

Last Editor harry.smyth Date 03 November 2014

Document

Name

GENERAL HANDBOOK FOR HEIMDALL

DETECTORS

Doc. No. 667/HB/31900/000

4.7 Alignment Features

The Heimdall detectors have two built-on features which help with alignment - angle

markings and ‘gun-sight’.

4.7.1 Angle Markings

The Heimdall detector mounting-base has a series of markings which denote 5 degree

angle steps. An installer may use these as an aid to alignment, with regards to detector

angle.

The Heimdall detector body has an arrow which lines up with one of several notches that

are moulded onto the mounting-base (see Figure 11). To make the setting easier, every

third notch is larger (major) than the intervening (minor) notches.

With the arrow lined up with the first major notch (the one nearest to the rear of the

detector) the angle of the detector is zero (horizontal). The next two minor notches are 5

degrees and 10 degrees from horizontal (detector tilted forwards). The next major notch

will align the detector to 15 degrees from the horizontal.

Figure 11 – Angle Notches on Heimdall Detector

It should be noted that these angles are all in relation to the mounting surface of the

detector which is not necessarily the same as that of the road surface.

Arrow here means

detector is horizontal

(zero degrees)

Arrow currently

pointing at the 25

degree mark.