Belt Speed Detector

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Model BSD

WHAT IS IT? The Model BSD is a "traction action" motion control that indicates when a conveyor belt has slowed or quit moving altogether. The unit can be adjusted as an overspeed, underspeed, or zero speed control. The output of the Model BSD can be wired into a PLC or DCS, or to the optional RMS controller (or MSD controller) which has a DP/DT relay to control up to two separate circuits, one for machinery shutdown and one for an alarm.

WHY IS IT NECESSARY? The Model BSD can shut down rotating equipment before damage is encountered. It provides protection for interlocked conveyor belts, especially if one of the belts fails due to overloading or quits due to tearing.

ADVANTAGE:  No drilling or tapping of tail pulley shaft required, unit is shielded between top and bottom of conveyor belt, and the unit can be placed anywhere on the conveyor belt.

 

Models Available
Model Description Shipping Weight
  Lbs. Price
US Funds
BSD-2S Wheel (traction action) motion control, includes 12mm 2-wire (RMS-12S) inductive sensor and wheel target. Does not include optional RMS-G controller (see below). 18 $389.00
BSD-3S Wheel (traction action) motion control, includes 12mm 3-wire (MSD-12S3) inductive sensor and wheel target. Does not include optional MSD-800 controller (see below). 18 $394.00
BSD-0S Wheel (traction action) motion control, sensor not included. Does not include optional controller (see below). 18 $199.00
Typical cardboard shipping carton measures 34" x 10" x 7" each.

Note: Prices subject to change without notice.

Replacement Parts
Model Description Shipping Weight
  Lbs. Price
US Funds
RMS-1G Non-contact motion control, includes: 120 VAC electronics and NEMA 4,4X polycarbonate enclosure. 1.5 $277.00
RMS-2G Non-contact motion control, includes: 240 VAC electronics and NEMA 4,4X polycarbonate enclosure. 1.5 $277.00
RMS-3G Non-contact motion control, includes: 24V AC/DC electronics and NEMA 4,4X polycarbonate enclosure. 1.5 $277.00
Typical cardboard shipping carton measures 11" x 9" x 8" each.

Note: Prices subject to change without notice.

 

Part Description Shipping Weight
CONTROL UNIT Lbs. Price US Funds

MSD-800

Control Unit:  Panel mount style, indicates two under-speed points or two over-speed points, or one of each. 100-240 VAC power input. Digital RPM tachometer display. 2 $255.00

MSD-800-24

Control Unit:  Panel mount style, indicates two under-speed points, two over-speed points or one of each. 24 VDC power input. Digital RPM tachometer display. 2 $255.00
Typical cardboard shipping carton measures 11" x 9" x 8" each.

Note: Prices subject to change without notice.

 

Part Description Shipping Weight
  Lbs. Price
US Funds
RMS-12S 12 mm (2 wire) inductive proximity sensor (for use with RMS-G controller) 1 $175.00
MSD-12S3 12 mm (3 wire) inductive proximity sensor (for use with MSD-800 or MSD-800-24 controller) 1 $137.00
21310007 Nylon wheel assembly with 6 targets 2 $78.00
21310016 Safety chain kit with hardware, 2 pieces at 4 feet each 5 $42.50
21310015 Safety cable, 1 piece at 2 feet each (2 required) 1 $1.75
MSD-14 Three conductor electrical cable (Belden 8442) 0.02 lbs./ft. $0.45 / ft.
Typical cardboard shipping carton measures 11" x 9" x 8" each.

Note: Prices subject to change without notice.

 

Technical Specifications
  • The controller is sold separately, and is dependent on the sensor chosen.
  • The RMS-12S (2 wire) sensor works with the RMS-G series controller, while the MSD-12S3 (3 wire) sensor works with the MSD-800 series controller.
  • The RMS-G series controller is available in a NEMA Type 4 polycarbonate housing, while the MSD-800 controller is a panel mount plastic housing with display.
  • Both controllers are available in either a 120 VAC, 240 VAC, or 24V AC/DC power input. Specify model number and input voltage upon ordering.
  • The sensor can be used in outdoor environments and is connected to the controller(s) with (Belden 8442 or 8760 or similar).
  • Each inductive sensor is supplied with 6 feet of electrical cable.  Field splice for longer lengths
  • The maximum separation distance between controller and sensor is 200 feet.
  • Each controller has a dry, unpowered relay rated for 5A @ 120 VAC, and 240 VAC.
  • 6 targets are built into the wheel assembly.  Wheel is replaceable if necessary.
  • The operating temperature range is -13ºF to 140ºF (-25ºC to 60ºC).
  • No drilling or tapping of tail pulley shaft necessary.  Mounts between the conveyor belts.

Drawings (Members Only)

Data Sheets