Terra DP-3 Laser SensorLaser Distance Sensor

This unique laser distance measuring device is packaged in our Extra Heavy Duty enclosure, specially designed to withstand all conditions of harsh working environment such as underground mining.

Laser distance sensor module is a new easy way of measuring the real time machine components motion. Millimetre accuracy measurement information can be sent to the processing PLC or computer via digital or analog scalable output. With the mining environment in mind, DTI has developed multiple features sensor enclosure. Terra DP-3 Laser is built tough with a heavy-duty mining grade enclosure to withstand moisture, shock and vibration.

The DTI TERRA DP-3 Laser is a powerful distance measuring instrument, designed for integration into your system.

The DTI TERRA DP-3 Laser delivers accurate distance measurement using the reflection of a laser beam.

Our sensor requires only a quarter sized target to provide solid length measurement. When used in continuous tracking mode, it can be used to accurately measure position of a machine’s moving parts.

The DTI TERRA DP-3 contactless laser range-finder sensor designed to determine accurate position of the top drive. The DTI TERRA DP-3 laser device measurements are used to calculate a variety of valuable drilling information:

  • Actual Drilling Depth
  • Total Drilling Depth
  • Rate of Penetration,,, etc.

Further integration with drill’s control systems will provide additional features:

  • Automatic stop at desired target depth
  • Safe tramming, only if pipe is out the hole.
  • Drilling Data collection… etc
DTI Terra DP-3 Specifications
Typical measuring accuracy for DTI-B-3 ± 3.0 mm @ 2σ
Smallest unit displayed 0.1 mm
Measuring range on natural surfaces 0.05 to approx. 65 m
Measuring range on orange (reflective) target plate 0.05 to 500 m
Measuring reference from front edge
Diameter of laser spot at target at a distance of 4mm @ 5 m
8mm @ 10m
Approx. 28mm*14mm @ 50m
Approx. 40mm*25mm @ 100m
Required time for
• Single Measurement
• Tracking
0.15 to approx. 4 sec
0.15 to approx. 4 sec
Light Source
Laser diode 620-690 nm (red) IEC 60825-1:2001; Class 2
FDA 21 CFR 1040.10 and 1040.11
Beam divergence: 0.16 x 0.6 mrad Pulse duration: 0.45×10-9s Maximum radiant power: 0.95mw
Laser Expected lifetime >50,000h @ 20˚C
ESD IEC 61000-4-2 : 1995 +A1 + A2
EMC EN 61000-6-4
EN 61000-6-2
Power supply 24…30V DC 2.5A (Heating option)
Temperature range during operation DTI Terra BP-3 -40˚C to +50˚C>
Temperature range during storage -40˚C to +70˚C
Degree of Protection IP65; IEC60529 (protected against ingress of dust IP65; IEC60529 (protected against ingress of dust and water) “IP67 UL certification pending.”
Weight DTI-DP-3  < 2100 grams