MR382-1 Controller

MR382-1 Controller

Controller for MR382 series U-BEAM Sensor

The MR382 series Fiber Optic U-Beam Sensor is an innovative photo interruption/slot sensor solution that can be deployed in challenging environments, including medical, mines, oil & gas, refining, electromagnetic and high voltage. The U-Beam sensor is a turn-key optical solution for implementing a gear tooth speed sensor, an edge detector or proximity sensor. The optical sensor operates over a duplex multimode 62.5/125 optical link up to 1250 meters.


Functional States
Normal (Beam not interrupted) Digital 5V and 24V Outputs=HI

Activated (Beam interrupted)

Broken Fiber, Loss of Optical Signal

or Controller Failure

Digital 5V and 24V Outputs=LOW
Digital Outputs
5V Logic 5 VDC/2kΩ Load
24V Logic 24 VDC/2kΩ Load
Bandwidth 30 kHz
Analog Output
Frequency to Voltage Converter

0V to 10V DC / 2kΩ Load

1 kHz/Volt Conversion (Contact Micronor Sales for Special Requirements)

40-60% Duty Cycle Requirement (See Section 8 of Manual for more information)

< 2% Linearity (if Duty Cycle parameter satisfied)

Operating Wavelength 850nm, Class I Eye Safe
System Loss Budget 15 dB
Maximum Distance Up to 1250 meters
Interfaces NOTE: Electrical connections shall not exceed 3 meters
Electrical 10-pin Screw Terminal, 30-14 AWG (Phoenix Mating Plug 1803659)
Optical LC Duplex, 62.5/125μm Graded Index Fiber, 0.275NA, Type OM1
Power Supply +24 VDC, <80 mA input
Functional Safety
ISO13849-1 Classification Category 2
MTTFd 6.48 E+05 hours (74.0 years)
Performance Level (PL) PL=c
Safety Integrity Level (SIL) SIL=1
Explosive Atmospheres
EX Classification Controller shall be installed in non-hazardous location only
Power supply to Controller shall be current limited 200mA
IECEx Test Report GB/CML/IECExTR 16.0105.00/00
IEC Ex EPL Mb/Gb/Gc/Db/Dc
NEC Exempt
Environmental Performance
Temperature/Humidity -5°C to +55°C (-23°F to +131°F), 0-95% RH, Non-Condensing
Ingress Protection IP50
Physical Attributes
Mounting 35mm DIN Rail
Housing 11.4 x 8.9 x 3.2 cm (4.5 x 3.5 x 1.25 inches)
Weight 230 g (8.1 oz)

Specifications subject to change without notice



  • DIN rail mountable module
  • EX rated [Ex op is] Inherently Safe Optical Radiation
  • Controller is installed outside the hazardous area
  • Interference free transmission up to 1250 meters
  • Supports 62.5/125 multimode fiber link
  • Works well with MR382-2


  • Digital outputs, 5V and 24V
  • Frequency to Analog Voltage Output
  • Digital outputs implement known default failure state

Ordering Information

MR382-2-X Where X=Length of Pigtail: 03=3m, 05=5m, 10=10m


Quick Ship Configurations

MR382-1-1 DIN Rail Mount U-Beam Controller
MR382-2-03 U-Beam Sensor, Length=3m
MR382-2-05 U-Beam Sensor, Length=5m
MR382-2-10 U-Beam Sensor, Length=10m