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Products

Penlink > Products > Encoders > Magnetic Encoders > Explosion Safe Encoders > XR850
XR850

XR850

The Pinnacle of Hazardous Duty Reliability

The XR850 SMARTSafe™ 8.5″ Magnetic Encoder is a breakthrough in hazardous duty solutions, offering modular, no-bearing construction certified for ATEX, IECEx, and cULus gas and dust environments.

Its robust design ensures reliable performance in the harshest industrial applications.

Categories: Magnetic Encoders, Explosion Safe Encoders, Heavy Mill Duty Encoders
  • Description
  • Specifications

XR850

The Pinnacle of Hazardous Duty Reliability

The XR850 SMARTSafe™ 8.5″ Magnetic Encoder sets a new standard in hazardous duty rotary encoders. With modular, no-bearing construction and certifications for ATEX, IECEx, and cULus environments, it delivers unmatched durability and performance.

Designed for UL gas and ATEX/IECEx gas and dust applications, the XR850 eliminates the need for barriers, isolators, or explosion-proof glands in Level 2 environments. This rugged encoder withstands vibration, shock, liquids, dust, and dirt, making it ideal for demanding industries such as paint booths, coil tubing rigs, and draw works.

For Level 1 applications, the XR850 integrates seamlessly with XRB1 or XRB2 isolators, enabling intrinsically safe wiring in hazardous environments. Unlike traditional optical encoders prone to weak bearings and faults, the XR850 mounts directly onto your main application shaft, ensuring long-term reliability.

Equipped with SMARTSafe™ technology, it provides protection against short circuits and wiring faults, ensuring 24/7 operation. By eliminating bearings, the XR850 addresses the primary cause of industrial encoder failures, keeping your critical operations running smoothly.

  • Fits NEMA 8.5″ Flanges
  • Fits Shafts up to 4 1/2″ [115mm]
  • ATEX/IECEx Rated for Zone 1, 2, 21 & 22 Applications
  • Ideal for Oil and Gas Drilling
  • No Bearings to Wear Out
  • Up to 5000 PPR
  • Self-Diagnostic LED and Alarm Output
  • 3 Year No-Hassle Warranty
  • cULus Class I Division 1 Groups A,B,C,D Listed
  • cULus Class I Zone 0 Group IIC
  • cULus Class I Division 2 Groups A,B,C,D Listed
Relevant Documents

New Absolute Rotary Encoders for Industrial Automation

Heavy Duty Encoders For Harsh Environments

XR850

Technical Specification

 

Technical Information
Operating Power (Add load and cable drive current as required)
Division 1, Zone 1 (XRB3): 12-24VDC In/Out, 150 mA
Division 2, Zone 2: 5-24VDC In/Out, 150 mA
Output Format A Quad B with marker (A, /A, B, /B, Z, /Z)
Frequency Range 0 to 165 kHz
PPR 8-5000
Speed 5400 RPM
Maximum Cable Length Division 1, Zone 1: Encoder 500′ Isolator 1000′
Division 2, Zone 2 (5 to 15 VDC in): 500′
Division 2, Zone 2 (15 to 24 VDC in): 250′
Rotor Position +/- 0.100” [+/- 2.54mm]
Sensor Rotor Gap 0.045″, +0.015″/-0.030″ [1.14mm +0.38/-0.76mm]
Temperature -40°C to 80°C (storage -40°C to 100°C)
Environmental IP54 (see manual for details)
Vibration 5-2000Hz, 20G; 100G Shock
Weight 9 lbs [4kg]
Certifications ATEX/IECEx Zone 1 & 21 Group IIC
cULus Class I Div 1 Group A,B,C,D*
cULus Class I Zone 0 Group IIC
ATEX/IECEx Zone 2 & 22 Group IIC
cULus Class I Div 2 Groups A,B,C,D
*See installation drawings for Warnings and Limitations
Penlink AB

Penlink serves a wide range of global industries with rotary transmission, electro-optics, and servo systems.

If our standard selection doesn’t meet your application’s requirements, we are happy to develop a modified standard or customized solution.

+46 (0) 8 401 10 10 | info@penlink.se

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