MR431
ZapFREE® Fiber Optic Absolute Position Sensor
The MR431 ZapFREE® Fiber Optic Absolute Position Sensor measures absolute angular position from 0° to 360° with 0.044° resolution.
This innovative sensor transceives -interference free- up to 30 meters. The system consists of a passive optical sensor (MR431) and active controller (MR430) linked via a duplex 1mm M-POF plastic optical fiber cable assembly (MR439).
Specifications
| Measurement Parameters | |
| Measurement Range | 0° to 360° (continuous) |
| Resolution | 13 bits (8192), 0.044° |
| Accuracy | 0.5° |
| Repeatability | ±0.175° |
| Maximum RPM | 500 RPM continuous, 2200 RPM intermittent Note: 2200 RPM for <2 seconds duration, in stop motion allowed |
| Mechanical Performance | |
| Starting Torque | 0.1 N*m with Shaft Seal |
| Max Shaft Loads | 500g at 5mm distance |
| Optical Interface | |
| Optical Interface | Duplex, POF and M-POF |
| Link Length | Up to 30meters (100 feet) with MR430 controller |
| Explosive Atmospheres | Inherently Safe, Simple Mechanical Device |
| EX Classification | Inherently safe, simple mechanical device when used with MR430-1 Controller IECEx Test Report (ExTR) TBD |
| IEC Ex | EPL Mb/Gb/Gc/Db/Dc |
| MR Attributes | ACR Guidance Document for Safe MR Practices |
| MRI Usage Zones | MR431 sensor and MR439 cable assembly is designed for safe use in Zones I-IV |
| Materials | MRI Safe, Non-metallic, Body/Shaft: Acetal |
| Environmental Performance | |
| Sensor Temperature |
Operating: -5°C to +55°C (+23°F to +131°F) Storage: -40°C to +80°C (-40°F to +176°F) |
| Cable Temperature |
Operating: -40°C to +60°C (-40°F to +140°F) Storage: -40°C to +80°C (-40°F to +140°F) |
| Humidity | 0%-95% (non-condensing) |
| Ingress Protection | IP65 |
| Physical Attributes | |
| Housing Dimension | Ø 25mm x 26mm x Ø 6mm Shaft |
| Unit Weight | 15g (0.53 oz) without pigtail |
Specifications subject to change without notice
Features
- 100% passive sensing design – no electronics whatsoever
- Absolute 13-bit single-turn resolution
- Sensor can be installed in all manner of hazardous location and explosive atmosphere – mines, gas and dust
- Non-metallic and all optical design allows for use in MRI and Radiation applications.
- Immune to EMI and RFI for safe use in and around medical equipment and “noisy” industrial environments
- Immune to lightning and high voltages
- Link lengths up to 30 meters
- Standard model operates over -5°C to +55 °C (23°F to 131°F)
TO ORDER
Call +1-805-389-6600 or email sales@micronor.com
Ordering Information
| MR431-A06 | Sensor with 6mm OD Shaft |
| MR431-1101 | Set of 3x synchro clamps and screws |
| MR439-PXX | M-POF Sensor Cables, where XX=length in meters: 05=5m, 10=10m, 20=20m Contact Micronor sales for OEM custom lengths. |
Quick Ship Configurations
| MR430-1 | DIN rail mount controller |
| MR430-99-01 | SSI/RS485 Interface (J2) Pigtail Assembly, L=1m |
| MR431-A06 | Sensor with 6mm OD Shaft |
| MR431-1101 | Set of 3x synchro clamps and screws |
| MR439-P05 | M-POF Sensor Cable, 5m |
| MR439-P10 | M-POF Sensor Cable, 10m |
