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KISTLER WPT Sensors

WPT sensors are universally adaptable sensors for the acquisition of vehicle wheel speed. The sensors deliver 10 … 5 000 pulses per rotation (standard, other values on request).
WPT sensors are ultra-compact and extremely light in weight. For maximum flexibility, the incremental transducer unit of the WPT can be exchanged quickly and easily. Output signals generated by the WPT sensors provide the basis from which wheel rotation speed, acceleration, distance, and speed are calculated (measurements of this kind are afflicted with slip and dependent of the dynamic wheel circumference.

Features

For detecting wheel rotation to calculate wheel speed, distance traveled, and vehicle speed.

  • Easy installation
  • Compact design and lightweight
  • Rugged housing
  • Reverse-polarity protection
  • Degree of protection IP67
  • Optional: DTI function

Specifications

Basic mechanical data
Permissible rotational speed
Maximum min-1 6000
Continuous operation min-1 3000
Available pulse values
Standard pulses/U 10…5000
Other pulses/U on request
Operating temperature range °C –40…85
Degree of protection IP67
Schock resistance (DIN IEC 68-2-27) m/s2
ms
2500
6
Vibration resistance (DIN IEC 68-2-27) m/s2
Hz
100
10…2000
General electrical data
Max. permissible load/channel mA ±20
Max. pulse frequency kHz 300
Reverse polarity protection for the power supply yes
Output signal 1) 2 channels
A+B 90°
shifted 1 zero impulse/ rotation
Electrical connection2) 8-pin M12
Electrical data RS-422 (TTL compatible)
Power supply, UB VDC 5…30
Power consumption without load
Typical mA 40
Maximum mA 90
Signal level
High (min.) V 2,5
Low (max.) V 0,5
Rise and fall time (max.) ns 200
Short-circuit proof outputs max. 1 connected channel

1) All signals with inversion

2) Radial flange connector on the housing, pins individually sealed, IP67 in an unplugged condition