Deflated tyre detector (DRFT)

This sensor detects, identifies and warns of the presence of a deflated tyre.

 

Composition

 

• On the track: 3 iron wheel sensors designed for tyre trains
• In the technical room: 1 concentrator, 1 electronic box

 

Mechanics

 

• Integration in a control cabinet and standard fixings
• 800x200mm cabinet space
• Distance to outdoor and indoor equipment up to 100m

Download the data sheet (French only)

 

Functions

 

• The three iron wheel sensors and the concentrator allow the exact position of the deflated tyre to be known
• The iron wheel sensor is adjustable in all three axes to suit the application
• Interfacing to the customer system is done by relay
• SD card storage of all activities occurring in the system: date and time of each train passage, presence and position of a deflated tyre, system error
• Possible storage of 250,000 passages with a 128 MBytes card
• Detection of a train running at up to 250 km/h (in its standard configuration)
• No additional electrical or mechanical adjustments are required after installation
• The autonomous system does not require any external handling or control

 

Options also available on request

 

• Detection of the presence of pairs of rubbers by adding dedicated equipment (max speed: 100km/h)
• Detection of dragging parts under the train by adding dedicated equipment
• Checking the status of each pair of wipers
• Control and diagnosis via Ethernet

 

Technical specifications

 

Outdoor equipment

 

• Power supply via the concentrator
• SIL4
• Operating temperature range : -40°C to +80°C
• Maximum humidity: 100%.
• Immersion and solids protection rating: IP68 (enclosure) and IP65 (connector)
• Minimum iron wheel diameter: 300mm
• UIC510-2 compatible wheel flange height
• Universal sensor mounting for rail types S45…UIC60 (other profiles on request)
• No rail drilling required
• Mechanical protection of sensors
• Protection against lightning strikes

 

Interior equipment

 

Hub

 

• Supply voltage range 13V…40V (24V nominal)
• Power consumption 24W
• Operating temperature range : -30°C to +70°C
• Wheel detection up to 250km/h
• Galvanic isolation between internal electronics and power supply and external equipment
• Dimensions 304x134x216 mm
• Can be integrated into a 19″ rack

 

Processing unit

 

• 220VAC power supply
• Power consumption: 40W
• Operating temperature range : -30°C to +70°C
• Galvanic isolation between internal electronics and external power supply and equipment
• Interfacing by relay
• Dimensions 280x170x90 mm
• Mounting by nut/bolt or screw/pin
• Electromagnetic compatibility
• Overvoltage protection
• Network communication via TCP/IP possibleIP67 enclosure protection possible