Hydro-Probe Orbiter

Moisture sensor: For rotary pan mixers


  • Moisture
  • Ambient temperature

Typical Materials:

  • Sand
  • Stone
  • Recycled asphalt pavement (RAP)
  • Other aggregates

Unique Key Features:

  • Rugged, hard-wearing design for abrasive materials
  • Simple installation into aggregate bins
  • Shape ensures good compaction of material presented for accurate measurement


Bin or Silo

  • Mount in the flow of material inside the bin or underneath the bin gate.

Conveyor belt

  • Mount on belt conveyors.

Planetary Mixer

  • Mount onto the rotating scraper blade arm.

Rotating Pan Mixer

  • Mount with replaceable arm in the flow of material and the head unit above the material.

Static Pan Mixer

  • Mount onto the rotating scraper blade arm.

Turbo Mixer

  • Mount onto the rotating scraper blade arm.
  • 0062 Hydro-Probe Orbiter Fixing Kit with (M10) bolts, washers, nuts to connect the clamping block
  • 0580 Hydro-Probe Orbiter Protection Sleeves
  • 0582 ORBA2 Rear Protection Plate, pack of 5
  • 0584 Ceramic Protection Ring for Sensing Arm ORBA2, pack of 2 (Optional upgrade from Stainless Steel version part 0586)
  • 0586 Protection Ring in Steel for Sensing Arm ORBA2, Pack of 5
  • 0975A 4m Sensor Cable
  • 0975AT Sensor Cable with Network Termination (4, 10, 25 and 50m)
Digital Technology
Digital technology provides precise, linear moisture measurement.
Advanced Digital Signal Processing
The sensor response may be adjusted remotely using the Hydro-Com software to minimise the effects of noise of the measured signal. Advanced Digital Signal Processing provides a clear signal with a rapid response.
Measurement Modes
Choice of measurement modes for optimising sensor performance in a variety of applications and material types (except Hydro-Probe).
Fully Temperature Compensated Measurement
The sensor internally adjusts for mechanical changes due to temperature fluctuations
Easy to Interface
Two analogue outputs and digital RS485 communications and configurable digital inputs / output make the sensor simple to integrate into a control system. Includes Modbus.
Fast Measurement
Measuring at 25 times per second, the sensor continuously detects changes in the moisture of the materials throughout processing.
Temperature Measurement
Temperature output is available to provide a readout of material temperature.
Accuracy of Measurement
All measurements can be calibrated to an accuracy of 0.2% for aggregates (0.1% in the mixer) and 0.5% for other materials.
Sensor Configuration
Sensors can be remotely configured using Hydro-Com diagnostic software or Hydro-View/Hydro-Hub. All readings and sensor parameters are available including the type of output and filtering characteristics.
The sensor may be internally calibrated using Hydro-Com software, or the linear output may be calibrated within the control system or remotely by using the Hydronix Hydro-View/Hydro-Hub interfaces.
Simple Power Requirements
The sensor may be powered from a 15-30V dc supply. Multiple sensors may be driven from a single power source.
Modbus to control system
Input / Output connections
Recommended field cabling:
  • Six pairs twisted (12 cores total) screened (shielded) cable with 22 AWG, 0.35mm2 conductors
  • Screen (shield): Braid with 65% minimum coverage plus aluminium/polyester foil
  • Recommended cable types: Belden 8306, Alpha 6373
  • Maximum cable run: 100m, separate to any heavy equipment power cables

Enquire about Hydro-Probe Orbiter


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