Rotary encoder for harsh environments

Newbury Park, CA—MR314 ZapFree high-resolution hollow shaft fiber-optic rotary encoder from Micronor Inc. is intended for harsh and hazardous environments.


Discrete Control

MR314 ZapFree high-resolution, hollow-shaft fiber optic rotary encoder from Micronor is intended for harsh environments that require EMI immunity.

Newbury Park, CA —MR314 ZapFree high-resolution hollow shaft fiber-optic rotary encoder from Micronor Inc . is intended for harsh and hazardous environments. Designed to accommodate the needs of large drive applications, such as EMI immunity, high resolution (1,024 pulses per revolution or ppr), and the mounting convenience of a hollow shaft package, the device offers wide temperature operation (-60 to 150 °C) and is immune to lightning and high-voltage static and plasma fields, radiation resistant, intrinsically safe, and ATEX compliant. No integral electronics reside within the encoder housing and the optical design requires just one fiber connection.

Passive design covers a wide range of environments. Special versions can be engineered for thermal-vac situations. Product optically links to an "active" MR310 ZapFree remote encoder interface (REI) module using one 62.5/125 multimode fiber link up to 1,000 m (3,280 ft) away. Convenient DIN-rail mount lets the module be co-located with a PLC or other system interface electronics where power supply and conventional electrical interface connections can be made. Module offers a wide range of standard interfaces, including direct quadrature outputs, separate multiplier/divider quadrature outputs, two programmable analog outputs (4-20 mA and

Interface module firmware also allows the encoder to emulate a multi-turn absolute encoder. A software command or TTL signal input establishes a calibration or zero reference. External battery back-up is required to maintain operation during power operations. MR314—and all encoders in the MR3XX series—use wavelength division multiplexing technology by assigning each internal optical path to a wavelength so all wavelengths and paths can be combined onto one fiber.

—Control Engineering Daily News Desk
Jeanine Katzel, senior editor,

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Motor specification guidelines; Understanding multivariable control; Improving a safety instrumented system; 2017 Engineers' Choice Award Winners
Selecting the best controller from several viewpoints; System integrator advice for the IIoT; TSN and real-time Ethernet; Questions to ask when selecting a VFD; Action items for an aging PLC/DCS
Robot advances in connectivity, collaboration, and programming; Advanced process control; Industrial wireless developments; Multiplatform system integration
Motion control advances and solutions can help with machine control, automated control on assembly lines, integration of robotics and automation, and machine safety.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Big Data and bigger solutions; Tablet technologies; SCADA developments
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
click me