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ELSEMA 

MD240-2 Vehicle Loop Detector  

- 5 - 

  

Dip switch 9 and 10 of CH1

 

Frequency

 

Frequency (30 K to 100 KHz). Used to avoid the interference 

Dip switch 9 and 10 

is OFF

 

 

High 

Dip switch 9 is ON

 

 

Medium-High 

Dip switch 10 is ON

 

 

Medium-Low 

Dip switch 9 and 10 

is ON

 

 

Low 

 
Switch 2: Channel 2 Loop Function Selection (7 way dip switch) 
 

Dip switch 1 of CH2 

Function 

Relay Output Type Selection 

Dip switch 1 is OFF

 

 

CH2 relay will be present output 

Dip switch 1 is ON

 

 

CH2 relay output type is pulse 

 

Dip switch 2 of CH2 

Function 

Relay Pulse Output Type Selection 

Dip switch 2 is OFF

 

 

When vehicle goes in, CH2 relay is in pulse output for 

200ms 

Dip switch 2 is ON

 

 

When vehicle has left the loop, CH2 relay will delay 

200ms and will give pulse output for 600ms 

 
 
 
 
 
 
 
 

Summary of Contents for MD240-2

Page 1: ...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 02...

Page 2: ...being the least sensitive and 0 015 being the most sensitive Dip switch 3 4 and 5 for CH2 sensitivity selection with 0 8 being the least sensitive and 0 015 being the most sensitive Dipswitch Settings...

Page 3: ...vehicle used to solve the mistake operation If it is recommended Dip switch Settings 3 of CH1 Function Special Functions Dip switch 3 is ON Direction Detection If vehicle moves from CH1 to CH2 then C...

Page 4: ...1 relay will delay 200ms and will give pulse output for 600ms Dip switch Settings 6 7 and 8 of CH1 Sensitivity Sensitivity Selection Eight Levels Choices Dip switch 6 7 and 8 is ON 0 015 highest sensi...

Page 5: ...hannel 2 Loop Function Selection 7 way dip switch Dip switch 1 of CH2 Function Relay Output Type Selection Dip switch 1 is OFF CH2 relay will be present output Dip switch 1 is ON CH2 relay output type...

Page 6: ...Selection Dip switch 3 4 and 5 is ON 0 015 highest sensitivity range Dip switch 3 and 4 is ON 0 02 Dip switch 3 and 5 is ON 0 04 Dip switch 3 is ON 0 08 Dip switch 4 and 5 is ON 0 12 Dip switch 4 is...

Page 7: ...etecting Led Continuously On Indicates vehicle detection Blinking slowly Indicates loop is short circuit or the number of twists after the loop is not enough Blinking fast Indicates loop is open circu...

Page 8: ...cts of cross talk between the two systems The sensing loops and detectors should be positioned at least 2m apart Reset Button Please note The MD240 2 must be reset every time a setting change is made...

Page 9: ...t exceed 30 metres distance between control box and loop Troubleshooting Symptoms Solution If the detector is not working Press reset If red led indicator is not fully lit Check for power supply If gr...

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