Skip to main content

New Siemens loop detector functionality

An improved version of the SLD4 loop detector family is now available from Siemens. The upgraded SLD4 is said to include sophisticated length-based classification with configurable outputs, which can be set to activate when specific conditions are detected, such as large vehicles exceeding a predefined speed. As well as offering standard vehicle detection, the latest version of the SLD4 ca
November 11, 2013 Read time: 2 mins
Siemens SLD4 loop Detector
An improved version of the SLD4 loop detector family is now available from 1134 Siemens.

The upgraded SLD4 is said to include sophisticated length-based classification with configurable outputs, which can be set to activate when specific conditions are detected, such as large vehicles exceeding a predefined speed.

As well as offering standard vehicle detection, the latest version of the SLD4 can also be used in specialised bus, tram and Light Rail Transport (LRT) schemes and other similar applications requiring excellent detection accuracy.

Designed for maximum reliability and using the latest inductive loop detection algorithms, the SLD4 detector family complements the company’s full range of detection options. These include Selective Vehicle Detection and above-ground detection of vehicles and pedestrians.

According to Keith Manston, 2768 Siemens Mobility, Traffic Solutions head of product management, the enhanced SLD4 still delivers the self-tuning and fully automatic set-up features of the existing SLD4, ensuring optimum and reliable performance without interference. This is said to represent a significant advantage over manual setting of frequency and sensitivity parameters which can often be a challenge, with failure to achieve this correctly causing detectors to ‘chatter’ or otherwise fail to operate.

SLD4 detectors are fully compliant with UK specification TR2512 and provide four separate detection channels with full solid-state outputs for maximum reliability. For challenging or special applications, a PC support tool enables many aspects of the detectors’ functions to be accessed for specific deployment scenarios.

The detectors may also be powered from either AC or DC supplies. Low power requirements, with operation possible at voltages as low as 10V DC, makes support within battery powered equipment a viable option where needed.

For more information on companies in this article

Related Content

  • Doosan launches 5tonne DX57W-5 stage 3B compliant wheeled excavator
    February 10, 2016
    Doosan Construction Equipment’s new 5 tonne DX57W-5 Stage IV compliant wheeled excavator complies with the latest Stage 3B emission regulations. The DX57W-5 has increased power from the 42.5kW Doosan D24 4-cylinder engine which meets Stage 3B emission regulations without the need for a diesel particulate filter (DPF), through the use of cooled exhaust gas recirculation (EGR) and diesel oxidation catalyst (DOC) after-treatment technologies. Factory tests show a 15% increase in fuel efficiency, depending
  • Doosan launches 5tonne DX57W-5 stage 3B compliant wheeled excavator
    January 6, 2017
    Doosan Construction Equipment’s new 5 tonne DX57W-5 Stage IV compliant wheeled excavator complies with the latest Stage 3B emission regulations. The DX57W-5 has increased power from the 42.5kW Doosan D24 4-cylinder engine which meets Stage 3B emission regulations without the need for a diesel particulate filter (DPF), through the use of cooled exhaust gas recirculation (EGR) and diesel oxidation catalyst (DOC) after-treatment technologies. Factory tests show a 15% increase in fuel efficiency, depending
  • Increased use of reclaimed asphalt, reduced emissions
    February 10, 2012
    Reducing emissions and increasing the use of reclaimed asphalt pavement is among the key aims of plant manufacturers. Patrick Smith reports. Lower emissions and the use of recycled materials coupled with reduced costs are the aims of manufacturers of modern asphalt plants.
  • Technology to ensure continuity and quality for asphalt production
    June 4, 2019
    A variety of complex factors are involved in the production of hot asphalt mixes, with the process vulnerable to sudden stoppages of the equipment. The problems caused by a need for unplanned maintenance are high, as the cost of a plant stoppage is high. In order to minimise disruptions to production, new technologies can be used for wear components. Electronic monitoring of asphalt plant motors during production can boost efficiency, replacing corrective maintenance with preventive and predictive maintenan