Diablo DSP-55 Plug-In Loop Detector

The Diablo Controls DSP-55 is a single channel plug-in loop detector that works with a standard inductive loop or the Diablo Free Exit Probe (mini-loop). It is the direct replacement for the DSP-50 and measures 2.375 x 2.24 x 0.86 in. It runs on 8 to 35 VDC, a range Diablo gives for low voltage solar installs, and has a 10-pin Molex connector. Three solid-state FET outputs (A, B and B inverted) are rated 250 mA at 30 V. Output B can be presence, entry pulse, exit pulse or fail. A 10-position rotary switch sets sensitivity (factory 5), with four loop frequencies, sensitivity boost, and a fail-safe or fail-secure DIP switch. In Free Exit Probe mode the detector always gives an entry pulse. Loop inductance range is 20 to 1500 µH. It operates from -35°F to 165°F. Before You Order DC only. For a relay output or AC power, mount it in a Diablo RK-1R or RK-3R rack. Replaces the DSP-50. Also sold as the DSP-55-75 and DSP-55-100 kits with a Free Exit Probe. Never use the detector with a probe, or set to fail-secure, on a safety loop.