TD424 (Ch4 Card Detector)

High Performance Traffic Detector

The TD424 series of 4 channel microprocessor based traffic detectors with Eurocard OR ANSI/NEMA Standard TS1, Part 15 connectors having discrete detector outputs, Logic outputs as well as having the option to have a serial link for communication to a host device.

The detector has been designed for ease of operation and parameters can be individually set for each channel.  The TD424 is a Presence Detector providing a continuous output while a vehicle is present in the detection zone.

Applications

• Traffic counting
• Stopline detection
• Queue detection
• Vehicle actuated traffic control

Features of the TD424

• Configuration: Four channel detector for rack mounting and powered from an external source
• Front end type: Multi-channel, single multiplexed oscillator, employing sequential channel sampling
• Detection method: Microprocessor controlled by monitoring loop oscillator frequency changes resulting from loop inductance variation due the presence of motor vehicles
• Format: Eurocard OR NEMA size with front panel accessed 2 x 8-way DIL switches and visual indicators
• Optional Auto-retune: The detector will retune following a step inductance change greater than 15% of the current value