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Senturion XPD25 Disc Mount Proximity Probe
  • Senturion XPD25 Disc Mount Proximity Probe

Senturion XPD25 Disc Mounted Proximity Probe

Quick Overview

The Senturion XPD25 Proximity probe system with a disc mount proximity sensor with a 55.0mm diameter. The probe uses eddy current principle to measure distance up to 25.0mm with resolution of less than 0.003mm. It is designed for monitoring targets from as little as 50mm, even in a harsh environments (up to 180°C). The system includes a driver unit with a 5, 7, or 9m extension cable. The cable system incorporates snap lock connectors and double screened cable for easy installation and high immunity to interference.
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The Senturion XPD25 proximity probe system is a type of proximity sensor that uses the eddy current principle to measure the distance between the probe and a target. The XPD25 is a disc mount probe has a 55mm tip that is made of a conductive material. When the probe is brought close to the target, an eddy current is induced in the target material. The strength of the eddy current is proportional to the distance between the probe and the target. The driver unit converts the eddy current signal into a voltage output that is proportional to the distance.

The XPD25 proximity probe system is designed for installations where there a flat disc probe is prefered to the long threaded probes. It has a range of up to 25mm and a nominal sensitivity of 0.63V/mm. The system is also designed for harsh environments and can operate up to 180°C.


  • Switch selectable system cable lengths 5m, 7m and 9m.
  • 55mm tip diameter disc mounted probe
  • LED indication of selected length.
  • 3.5mm socket for gap voltage monitoring.
  • Double screened cable for high noise immunity.
  • Snap lock and shake proof cable connection.
  • Excellent repeatability on replacement of probe, extension or driver.
  • Low profile driver for easy local intefration to machine


  • Machine Shaft Vibration monitoring
  • Machine Shaft Position monitoring
  • Low Profile monitoring
  • Level monitoring
  • Gap detection
  • Corrosion monitoring
  • Turbine Differential Expansion monitoring


Measurement Range: 25.0mm. Linear Range 1.26 to 26.7mm
Linearity of Full Scale: ±1% -2 to -18V
Sensitivity: 0.63V/mm (16mV/mil) ±1%
Resolution: <0.003mm
Available System Lengths: 5m, 7m or 9m.
Frequency Response: DC to 5kHz



Probe Tip Diameter: 55.0mm
Probe Tip Material: PPS 40% Glass Filled
Probe Body Material: 303 Stainless Steel
Probe Body Format: Disc Type
Cable Type: Triaxial 75Ohm Coaxial, FEP Outer Jacket 3.2mm diameter
Armoured Option: Convuluted Stainless Steel 6.4mm diameter
Operating Temperature: -30 to +180°C
Minimum Target Diameter: 2 x Probe Tip Diameter
Connector: Female Miniature Coaxial



Linear Voltage Range: -1 to -18.0V for 1.26mm to 26.7mm
System Length Indication: Green LED Lamp
Power Supply Range: -16vDC to -28vDC (1.2V above output voltage)
Power Consumption: 3mA typ. Max 7mA
Sensor Connector Type: Self Locking Miniature Male Coaxial
Monitor Connector Type: 3.5mm Audio Jack
Mounting: DIN Rail or Plate
Weight 250g
Operating Temperature: -30 to +90°C


Pricing for the XPD25 are only available on request. Please contact us for a quotation, [email protected]. Options are shown on the product datasheet.

Availability: In stock

Price range : £10.00 - £503.00

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Description       Senturion XPD25 Disc Mounted Proximity Probe

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

Senturion XPD25 Disc Mounted Proximity Probe
Reverse Mounted Senturion Eddy Current Probe Type PRR04. Stainless Steel body with a PEEK encapsulated tip, diameter of 8mm. Measurement range of 0-2.5 or 0-4mm.
View FileDatasheet
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