CAME SMA Single-Channel Inductive Loop Detector 24V AC/DC

CAME SMA Single-Channel Inductive Loop Detector for Gates and Barriers

The CAME SMA is a single-channel inductive loop detector designed for vehicle detection at automated gates, barriers and bollard systems. It mounts on a standard 35 mm DIN rail and features an LCD display with configuration buttons for straightforward setup. The SMA offers 9-level adjustable sensitivity, 4 selectable operating frequencies to prevent cross-talk between adjacent detectors, and multiple time functions including switch-on delay, switch-off delay, pulse on occupancy, pulse on leaving and maximum presence. An Automatic Sensitivity Boost (ASB) function aids trailer drawbar detection. Suitable for safety or activation loop applications at car park barriers and automated gate entrances.

Key Features

• Single-channel loop detector with 2 relay outputs
• 9-level adjustable sensitivity (S1 to S9, factory default S4)
• 4 selectable operating frequencies (F1 to F4) to avoid cross-talk
• LCD display with configuration buttons
• Coded plug-in terminal connections
• Multiple time functions: switch-on delay, switch-off delay, pulse on occupancy, pulse on leaving, maximum presence
• Automatic Sensitivity Boost (ASB) for trailer drawbar detection
• Power failure safety mode
• Error memory storing last 5 faults
• 4 basic operating modes: Gate/Door, Barrier, Quiescent current, Directional logic
• Factory reset and recalibration functions
• 35 mm DIN rail mounting

Technical Specifications

• Supply voltage: 24 VAC -20% to +10% (max 2 VA) / 24 VDC -10% to +20% (max 1.5 W)
• Loop inductance: 20 to 1000 uH (ideal 80 to 300 uH)
• Loop resistance: less than 8 Ohm including lead cable
• Loop lead cable: max 25 m, 1.5 mm sq, min 20 twists per metre
• Output relay (loop): 240 VAC / 2 A AC1
• Output relay (alarm): max 40 VAC/DC, 0.3 A, AC-1
• Protection class: IP20
• Connection type: Plug-in terminals
• Channels: 1
• Relays: 2
• Operating temperature: -20C to +60C
• Storage temperature: -40C to +70C
• Humidity: less than 95% non-condensing
• Mounting: 35 mm DIN rail
• Certifications: CE

Dimensions

• 22.5 x 94 x 88 mm (W x H x D)