Door Industry Journal - Summer 2019

Also online at: www.dijonline.co.uk Automated Gates & Barriers Single and dual loop detector for reliable and fail safe vehicle detection Carlo Gavazzi’s latest LDP series of loop detectors provide reliable and accurate vehicle detection and is designed specifically to ensure ease of installation. The automatic frequency tuning ensures that each time it is powered up or reset it will automatically detect disturbances present on any of the four channels and in turn will choose the channel with the best signal condition whilst the selectable sensitivity allows adjustments in 10 steps from 1 to 10. 1 being the least sensitive and 10 the most sensitive. The Automatic Sensitivity Boost (ASB) ensures accurate detection of high-base vehicles such as trucks and buses whilst the automatic loop frequency tuning avoids cross talk between loops when installed in close proximity to each other. Crucially, the built-in fail safe / fail secure function; on detection of an error such as power loss or loop fault allows the loop detector to operate either to open or close the barriers safely. The multicolour power/fault LED feature ensures simple diagnostics and ensures rapid troubleshooting; providing an effective method for monitoring the loop status, cross talk, short circuit, open circuit and inductance out of range. The new LD series comes with two SPDT relay outputs that can be independently configured to operate in pulse or presence mode, with adjustable pulse and presence detection. The dual loop version can also determine vehicle direction. A wide power supply range from 24 to 240 VAC/VDC, together with many other features, contributes to make the new loop detector the state-of-the-art solution for reliable universal vehicle detection. The LDP loop detector is the perfect solution for applications such as car parks, drive through and car access control applications to control barriers, gates, bollards and car access equipment and is designed in accordance with the latest standards and European and North American regulations and is CE, UL508 and CSA certified. For more information regarding Carlo Gavazzi and its range of products, please visit the website: www.carlogavazzi.co.uk