Description

The new VLS/DA1 Series Optical Speed Sensors with a 0-6V Analogue Output via an integral Digital/Analogue converter. It is designed for data logging applications where general speed monitoring of machines is required. The output updates each 3 or 30 revolutions, depending if you are using Range 1 or Range 2.

Features

  • Rapid response to speed change – output is updated once per resolution (ie 3 or 30 RPM)
  • Linear voltage vs speed output
  • Wide angle of incidence ± 80° degree
  • On Target indicator standard
  • Contact Adaptor available
  • Easy installation
  • Rugged Glass filled nylon housing
  • Mounting brackets available

Specifications

Model: VLS/DA1
Optical Range: 50 – 2000mm
Overall Angle: ±80° degree to reflective marker
Light Sources: Red spot Laser Class II 635nm
Speed Ranges: Range 1 – 50 – 6,000 rpm
Range 2 – 50 – 60,000 rpm
Analogue Output: 0 – 6vDC
Accuracy: ±0.5%
Resolution: ±1.5mV
Output update rate: Once per resolution
On target indicator: Standard Green LED
Power requirements: 7.5-15vDC
Connections: 5 core cable 3m, 10m or 15m long
Dimensions: Length 13 cm x Dia 3.4cm

Termination

Black 0V Output
White 0-6vDC Output
Green 0V Supply
Red +ve Supply (7-15vDC)
Blue Connect to 0V for 0-6,000 Range
Not connected for 0-60,000 Range

NB: Only connect the two 0V wires (Black and Green) together at the power supply. This is to prevent any voltage drop along the 0V conductors causing a DC offset on the output.

Scope of Supply

  • Instruction Manual
  • VLS/DA/LSR Optical Speed Sensor Laser (7.5-15vDC)
  • 3V Output via 3m flying leads
  • Certificate of Calibration
  • Reflective Tape

A range of mounting brackets, clamps, short focus lens for high speed and small shafts.are available for use with these sensors,