Diablo Controls Loop and Mini-Loop Detector 8-35Volts DC

The Diablo Controls DSP-19 is a low power loop and free-exit probe vehicle detector designed specifically to install into a LiftMaster® model CSW24 operator or other models that use the same plug-in loop detector. Its very low current draw and low voltage range make it an ideal choice for solar-powered access-control applications.

The DSP-19 can be connected to a standard inductive loop or to one of Diablo Controls' free-exit probes—a small "pipe shaped" device approximately 4-1/2" by 1" that is buried in the ground to detect vehicles. It can be used as either a safety loop or free-exit loop detector and offers the flexibility of fail-safe or fail-secure operation. Note that in free-exit probe mode there is no presence detection, so the detector cannot be used as a safety detector. Contact Diablo Controls for more information on the free-exit probe.

Configuration is handled through a 6-position DIP switch and a 10-position sensitivity selection, providing flexibility for installations that need a little more than a standard detector. Selectable features include loop frequency, free-exit probe mode, extended presence, sensitivity boost for detecting high-bed vehicles and truck/trailer combinations, and fail-safe/fail-secure operation. Green power and red detect LEDs provide status and fault indication.

• Operating voltage: 8 to 35 volts DC, with extended low-voltage operation
• Extremely low power: less than 1 ma current draw in the non-detect state
• Single solid-state open-drain output capable of sinking more than 250 milliamps (250 mA @ 30 volts)
• 10 selectable sensitivity settings configured via a 6-position DIP switch
• Front switch-selectable fail-safe or fail-secure operation
• Loop inductance range of 20 µH to 1500 µH (including lead-in)
• Operating temperature: -35°F to 165°F (-37°C to 74°C)