Product Details


Explosion-Proof Bearingless Encoder SMARTSafe™ Sensor

  • No Barrier or Isolator Needed
  • Class I Div 1 Groups C, D Listed
  • Fits Shafts Up to 2" [52mm]
  • Fully Protected Against Shorts and Wiring Errors
  • Up 100000 PPR
  • 2 Year No-Hassle Warranty
  • Fully Potted Electronics
  • Zone 1 & 2 Certified
  • Wide Sensor-Rotor Gap: No Shimming
  • AEx Zone 1 Certified
  • No Intrinsic Safety Ground Required

XP5 SMARTSafe™ sensors power the world's first explosion-proof encoder with removable electronics and no external barrier! They are cULus, ATEX, AEx & IECEx certified and offer incredibly reliable no-bearing construction! SMARTSafe XP5 sensors can be used in ATEX/IECEx, cUL, AEX, and UL gas hazardous environments. 

Also available: no-bearing modular encoders (XPH8), as well as intrinsically safe models (XR5, XR12, XR56A, XR125, XR485, XR685, XR850), and hollow shaft models (M6C).

For Level 1 applications requiring ATEX/IECEx Zone 1 or cULus Class I, Division 1, Groups C & D use the XP5 directly in your application with no barrier or isolator required.

Unlike the competition, Avtron SMARTSafe encoder systems are protected against short circuits, power-to-output wiring, and output-to-ground faults. XP5 features full diagnostics:  it's easy to determine that signal quality is good, and that there are no wiring short-circuits.

Instead of mounting a tiny optical encoder with weak bearings on a wobbling stub shaft mount XP5 directly on your machine and install the rotor on your main application shaft. Top drives, draw works, coil tubing, paint many applications benefit from a more reliable no-bearing encoder. Vibration, shock, liquids, dust and dirt won't harm SMARTSafe XP5 encoders!

Eliminate the biggest cause of hazardous duty encoder failure--eliminate the bearings with XP5 hazardous duty encoder sensors.

Operating Power: Volts: 5-24VDC in/out; Current: 400mA max @ 5V; 200mA max @ 12V; 100mA max @ 24V (plus cable load)

Output Format: A Quad B with marker (A, /A, B, /B, Z, /Z)

Frequency Range: 0 to 250 kHz

PPR: 8-100000

Speed: 6000 RPM Max. (contact factory for higher speeds)

Maximum Cable Length: 1000 ft (305m) (contact factory for longer distances)

Rotor Positioning: Up to +/-0.100" [+/-2.54mm] movement/misalignment

Sensor-Rotor Gap: 0.040", +0.015/-0.030" [1.14mm+0.38/-0.76]

Temperature: -50°C to 85°C

   (rotor -50°C to 100°C continuous, +135°C intermittent)

Environmental: IP65

Vibration: 5-2000Hz, 18G; 100G Shock

Weight: 4.6 lbs. [2.1kg] (no rotor)


   Class I Div 1, Groups C and D

   Class I Zone 1, Ex db ia IIB T4 Gb

   Class I Zone 1, AEx db ia IIB T4 Gb

   Ex db ia IIB T4 Gb (ATEX/IECEx)

 *See installation drawings for Warnings and Limitations

  • Sensor PPR can be factory reprogrammed
  • Shrugs off dirt, oil and water
  • No glass disks to break or optics to fail
  • Detects, indicates, and survives wiring errors:  Short circuits, phase-to-ground, phase-to-V
  • Direct machine-mount
  • Self-Diagnostic LED: Red/Orange/Green
  • Full protection from motor shaft currents

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