MR344
ZapFREE® Hollow Shaft Fiber Optic Incremental Encoder
The MR344 ZapFREE® Heavy Duty Hollow Shaft Fiber Optic Incremental Sensor is an entirely passive, intrinsically safe, fiber optic incremental rotary encoder – ideal for a wide range of harsh and hazardous environmental applications. The passive, all-optical sensor connects to the remote controller via a standard duplex 62.5/125 multimode optical fiber link.
The remote MR340 Controller Module transmits and converts optical signals to/from the sensor. The Controller’s multiple built-in interfaces insure compatibility with industry standard motor drives, PLCs, quadrature counters and motion control systems.
Specifications
| Measurement Parameters | ||
| Resolution | 1024ppr | |
| Max Speed | 3,000 RPM continuous (MR320 Quadrature Outputs and Analog Outputs activated ONLY)
3,600 RPM short term (< 1 minute) (NOTE: At 3,000 RPM, MR344 housing temperature rises by 25°C above ambient due to bearing friction. Environmental temperature must be reduced accordingly. There is also a trade-off between operating speed and use of the MR340 auxiliary functions (analog outputs, divider, multiplier, etc.). Contact Micronor to discuss your requirements. |
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| Mechanical Parameters | ||
| Moment of Inertia | 2.06E-4 kg*m. (Pocket Hole version), 2.09E-4 kg*m. (Through Hole version) | |
| Starting Torque | 3.53E-3 N*m (Pocket Hole version) | |
| System MTBF | L10 Bearing life calculated at 2500 RPM: 2.12E+07 hours (2411 years) | |
| Optical Interface | ||
| Optical Interface | LC Duplex, 62.5/125μm Graded Index Fiber, 0.275NA, Type OM1 | |
| Link Length | Up to 2000 meters with MR340 Controller | |
| Explosive Atmospheres | Inherently Safe, Simple Mechanical Device | |
| EX Classification | Inherently safe, simple mechanical device when used with MR340 Controller | |
| ATEX | EPL Mb/Gb/Gc/Db/Dc | |
| IEC EX | EPL Mb/Gb/Gc/Db/Dc | |
| Environmental Attributes | ||
| Temperature/Humidity | Standard: -40°C to +80°C, 0%-95% RH (non-condensing)
Extended: -60°C to +125°C, 0%-95% RH (non-condensing) |
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| Ingress Protection | Through Hole Version=IP54 (dust protected, protected against splashing water)
Pocket Hole Version=IP66 (dust proof, protected against powerful water jets) |
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| Physical Attributes | ||
| Housing Dimension | Ø 100mm x 49mm | |
| Unit Weight | 655 g (23 oz) | |
| Materials | Body: Anodized Aluminum; Shaft Clamp and Bearings: Stainless Steel |
Specifications subject to change without notice
Features
- 100% passive sensing design – no electronics whatsoever
- Sensor can be installed in all manner of hazardous locations and potentially explosive atmospheres – mines, gas and dust
- Immune to EMI and RFI for safe use in and around medical equipment, VFD drives and other “noisy” industrial environments
- Immune to lightning and high voltage which “zaps” electronics-based encoders
- Outdistances copper, link lengths to 2000m
- Standard Temperature range: -40°C to +80°C;
- Extended Temperature option: -60°C to +125°C
- Special versions can be engineered for radiation and thermal-vac environments
- Compatible with MR340-1 DIN Rail Mount Controller
TO ORDER
Call +1-805-389-6600 or email sales@micronor.com
Ordering Information
| MR344-F38XYYYZ | Where X=Bore/IP Option, strong>YYY=Optical Interface, Z=Temperature Range X Options: (Blank)=Through Hole-IP54, P=Pocket Hole-IP66 YYY Options: C1R5=1.5m Pigtail , C03=3m Pigtail Z Options: (Blank)=Standard -40°C to +80°C, E=Extended -60°C to +125°C |
| MR344-99-XX | Shaft Adapters, where XX=Shaft OD Option For 8mm, order MR344-99-01 For 10mm, order MR344-99-02 For 12mm, order MR344-99-03 For 14mm, order MR344-99-04 For 15mm, order MR344-99-05 For 16mm, order MR344-99-06 For 18mm, order MR344-99-07 For 20mm, order MR344-99-08 For 25mm, order MR344-99-09 For 30mm, order MR344-99-10 For 32mm, order MR344-99-11 For 0.5″, order MR344-99-12 For 0.625″, order MR344-99-13 For 0.75″, order MR344-99-14 For 1″, order MR344-99-15 For 1.25″, order MR344-99-16 |
| MR314A | Long Tether Arm Kit |
| MR340-1 | DIN Rail Mount Controller |
Quick Ship Configurations
| MR340-1 | DIN Rail Mount Controller |
| MR344-F38C1R5 | Hollow Shaft Encoder, 1024ppr, Though Hole, IP54, 1.5mm Pigtail |
| MR344-F38C1R5E | Hollow Shaft Encoder, 1024ppr, Through Hole, IP54, Extended Temperature, 1.5m Pigtail |
| MR314A | Long Tether Arm Kit |
