Specifications

Siemens Mobility, Traffic Solutions

Sopers Lane, Poole, Dorset

BH17 7ER

Version 10 Page 74 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

5.7.4.6 Detection Length

In standard installations, the detector is normally set such that detection can occur at

distances up to 4.5m from the mounting pole. The will be adequate for most crossing

widths. However, some crossing widths are significantly shorter. DIP switch 6, can be

used to reduce the detection range to a region of approximately 2.5m from the mounting

pole.

5.7.4.7 Vehicle Detection

The detector uses various detection algorithms to eliminate false detection due to

vehicles. If the detector is to be installed in locations where vehicle detection is not

considered and issue, the detection can have its detection sensitivity increased slightly

by using DIP switch 1. It should be noted that the recommended setting will be with the

vehicle detection algorithm activated (DIP Sw1 OFF).

5.7.4.8 Detector Fault Monitor (DFM)

The detector has a fault monitor function. In the default mode, the detector will generate a

fault output (equivalent to a permanent detect) if the detector has not registered an

activation for a period of twenty hours.

This duration can be adjusted to a user defined value by setting DIP Switch 7 to ‘1’ (On)

and then using the terminal command DFM (reference section 7.7.4).