ELSEMA
MD12-2 Metal Loop Detector
- 1 -
MD12-2
Metal Loop Detector
Features
Supply 12VDC
Adjustable sensitivity (8 levels via dip switch)
2 x Relay outputs (each can be configured individually)
Power up and loop activation LED indicator.
Industry standard 11-way plug-in type circular connector.
Two loop detection function CH1 (10 way dip switch) and CH2
(7 way dip switch).
Application
Controls automatic doors or gates when a vehicle is present source.
Description
Loop detectors in recent years have become a popular tool having innumerable applications in policing, right
from surveillance operations to traffic control. Automation of gates and doors has become a popular usage of the
loop detector.
The digital technology of the loop detector enables the equipment to sense a change in the inductance of the
loop as soon as it detects the metal object in its path. The inductive loop which detects the object is made of
insulated electrical wire (32/020; 32 Strand, 2mm diameter) and is arranged either as a square or rectangle shape.
The loop consists of several loops of wire and consideration should be giving to the loop sensitivity when
installing on different surfaces. Setting the correct sensitivity allows the loop to operate with maximum
detection (8 levels via dip switch settings). Channel 1, is set by the 10 way dip switch and channel 2 is set by 7
way dip switch. When detection occurs, the detector energises 2 relays for the output (each can be configured
individually). This energising of the relay can be configured into different modes, by selecting the respective
dipswitch.
Technical Data
Supply voltage
12VDC
Standby Current
54 mA
Operating Current
73 mA
Outputs
2 changeover relays rated at 240VAC, 3A
Connection
Screw type terminal
