XR125 SMARTSafe 12.5" modular incremental quadrature rotary encoders are a breakthrough in hazardous duty encoders to fit large shaft applications. They are ATEX/IECEx and cULus approved and offer incredibly reliable no-bearing construction! SMARTSafe encoders can be used in ATEX/IECEx gas and dust and UL gas environments. Also available: hollow shaft models (XR45, XR685), shafted models (XR4F, XR485), no-bearing modular encoders to fit other flange sizes (XR56A, XR85A, XR115, XR850), and modular sensors (XR5, XR12).
For applications requiring ATEX/IECEx Zone 2 or 22 or UL Class I, Division 2, Groups A,B,C,D use the XR125 directly in your application, with no barrier, isolator or cable gland required.
For applications requiring UL Division 1, ATEX/IECEx Zone 1 or 21 use the XRB3 isolator in your control cabinet which permits the use of intrinsically safe wiring instead of explosion proof conduit or glands. The XR125 can also be used in UL Class I Division 1 and Zone 0 applications using the XRB3 Isolator.
Unlike the competition, Avtron SMARTSafe encoder systems are protected against short circuits, power-to-output wiring, and output-to-ground faults.
Instead of mounting a tiny optical encoder with weak bearings on a wobbling stub shaft, mount XR125 directly on your main application shaft. Vibration, shock, liquids, dust and dirt won't harm SMARTSafe XR125 encoders! Paint booths, draw works, coil tubing rigs...XR125 can keep them all working 24/7/365.
Eliminate the biggest cause of industrial encoder failure--eliminate the bearings with XR125 hazardous duty encoders!
Operating Power: (add cable drive current as req'd)
Division 1, Zone 1 (XRB3): 12-24VDC In, 10.6V Out, 150mA
Division 2, Zone 2: 5-24VDC In/Out, 100mA
Output Format: A Quad B with marker (A, /A, B, /B, Z, /Z)
Frequency Range: 0 to 165 kHz
PPR: 8-5000
Speed: 5000 RPM Max. (contact factory for higher speeds)
Maximum Cable Length:
Division 1, Zone 1 (Local/Remote): 1000' [300m] / 400' [120m]
Division 2, Zone 2: 500' [150m] @ 5-12V; 200' [60m] @ 24V
Rotor Positioning: Up to +/-0.100" [+/-2.54mm] movement/misalignment
Sensor-Rotor Gap: 0.045", +0.015/-0.040" [1.14mm+0.38/-1.0]
Temperature: -40°C to 80°C (Storage -40°C to 100°C)
Environmental: Electronics-IP67 (see manual for details)
Vibration: 5-2000Hz, 20G; 100G Shock
Weight: 15-18 lbs. [7-8kg]
Certifications:
ATEX/IECEx Zone 1 & Zone 21 Group IIC
cULus Class I, Division 1 and Zone 0 Group A,B,C,D*
ATEX/IECEx Zone 2 & 22 Group IIC
cULus Class I, Division 2 Group A,B,C,D
*See installation drawings for Warnings and Limitations
- Easy-swap electronic modules
- Sensors can be directly machine-mounted for OEM flexibility
- No air gap adjustment required
- Shrugs off dirt, oil, and water contamination
- No glass disks to break or optics to fail
- 4,500,000+ hour MTBF design
- Wide Sensor-Rotor Gap: No Shimming or Scraping
| Industry | Mining | General | Wind Power | Pulp & Paper | Oil & Gas | Marine | Metals | Machinery | Crane & Hoist |
|---|---|---|---|---|---|---|---|---|---|
Light Mill DutyHS4 Encoder Programming Tool Cables and Connectors Encoder Couplings RUSH AV4 AV25 HS25A AV6A HS6A K661 AV6M AV4 HS35A AV20 |
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PQAN ATEX Cert.
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SMART Alarm and LED Functionality
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MSDS-Threadlocker (blue) where supplied
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REACH & RoHS
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Nidec-Avtron Terms and Conditions
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Nidec Industrial Solutions ISO Certificate
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IECEx Quality Assessment Report (QAR 12.0002/10)
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IECEx Zone 1&21, Zone 2&22 Cert. XR Models
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ATEX Declaration of Conformity for XR
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Avtron Encoders Product Catalog
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Class 1 Div 1 Zone 0 Certification
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Class 1 Div 2 Groups ABCD Certification, UL Listed
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Class 1 Div 2 Groups ABCD Certification, UL Recognized
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SMT1 Brochure
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