MR346
ZapFREE® Size 90mm Fiber Optic Incremental Encoder
The MR346 ZapFREE® Heavy Duty 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
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Measurement Parameters |
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Resolution |
100, 128, 256 and 360ppr (Consult Micronor for special requirements) |
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Max Speed |
8,000 RPM continuous Note: De-rate maximum speed by 100 RPM per °Celsius when operating about 60°C for maintaining shaft seal integrity.. |
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Mechanical Parameters |
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Materials |
Body: Anodized Aluminum; Shaft and Bearings: Stainless Steel |
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Moment of Inertia |
2.5095E-6 kg*mm2 |
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Starting Torque |
3.0E-2 N*m |
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Max Shaft Loads |
Radial = 140 N (31 lbf), Axial = 70 N (15 lbf) |
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System MTBF |
L10 bearing life calculated at 50% of max. radial and axial load at 2500 RPM: 8.96E+05 hours (102.3 years) |
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Optical Interface |
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Connector |
Duplex LC on pigtail or ODVA IP-LC receptacle |
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Fiber Type |
Duplex MM 62.5/125µm, Graded Index, 0.275NA |
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Link Length |
Max distance is the lesser of 2000m (8300 ft) OR 2-way optical loss of 12dB at 850nm |
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Physical Attributes |
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Housing Dimension |
Ø90 mm x 82.5 mm |
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Unit Weight |
615 g (21.5 oz) |
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Explosive Atmospheres |
Inherently Safe, Simple Mechanical Device |
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Ex classification
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Inherently safe, simple mechanical device when used with MR340 Controller |
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ATEX
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EPL Mb/Gb/Gc/Db/Dc |
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IECEx
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EPL Mb/Gb/Gc/Db/Dc |
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Environmental Attributes |
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Temperature/Humidity
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Standard: -40°C to +80°C / 0% to 95% RH (non-condensing) Extended Option: -60°C to +125°C / 0% to 95% RH (non-condensing)
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Ingress Protection |
IP66 (strong water jets and temporary immersion) |
Specifications subject to change without notice
Features
- 100% passive, all-optical sensing design
- Sensor can be installed in all manner of hazardous locations and explosive atmospheres – mines, gas and dust
- Immune to EMI and RFI for safe use in and around medical equipment and “noisy” industrial environments
- Immune to lightning and high voltages that “zaps” conventional electronics-based encoders
- Outdistances copper, link lengths to 2000m
- Temperature range -40°C to +80°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
| MR346-X12YYYZ | Where X=Resolution, YYY=Optical Interface, and Z=Temperature Range X Options: C=256ppr, D=360ppr YYY Options: C1R5=1.5m Duplex LC Pigtail , C03=3m Duplex LC Pigtail, D00=IP-LC Interface Z Options: (Blank)=Standard -40°C to +80°C, E=Extended -60°C to +125°C (not applicable to D00 interface option) |
| MR340-1 | DIN Rail Mount Controller |
Quick Ship Configurations
| MR340-1 | DIN Rail Mount Controller |
| MR346-D12D00 | Size 90mm Encoder, IP66, 360ppr, IP-LC Interface |
