Maxi-Tronic » RB21 Belt Misalignment

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RB21 Belt Misalignment

Maxi-Tronic has the industry leading controls, sensors, service and experience to provide complete hazard monitoring and control systems for your facility. Maxi-Tronic belt misalignment sensors are ideal for bucket elevators, belt conveyors, rotary drums, food processing and other material handling equipment.

Maxi-Tronic “RB21” Sensors monitor for belt misalignment conditions on bucket elevators, belt conveyors, rotary drums and other material handling equipment.

RB21

Maxi-Tronic “Hot Bearing” HB21 Sensors in Action

  • Hinged mounting plate for quick inspection.
  • Round sensor for simpler installation.
  • 2 1/2” round hard Naval-Brass sensing disc.
  • Engineered for longevity and reliability.
  • Best feature set in the industry.

S:MAXI-TRONICRB21ACADRB21 - Assembly - 2 - 3D Model (1)

RB21 Models:
HB21 adjustable “Housings” are available for 1/8″NPT , 1/4″ NPT and metric grease fittings.
HB21s are available in most industry-standard sensor types:

  • Thermocouple*: Type T standard, others available.
  • RTD*: Industry standard PT100. 2 and 3-wire options.
  • PTC Thermistor*: “HBRB” and MaxiScan compatible.
  • DigiMax™ Digital*: “1-Wire” digital for DigiMax, PLC, MaxiScan 12/12M Controllers, MaxiTrack PC software and other makes of “1-Wire” digital controllers.
  • Temperature Switch: 120VAC 1A rated contacts, N/O or N/C, 105°F to 265°F set-points available. UL Rated Cable: PLTC-ER (Exposed Run), CMG.
    *Class II, Div. 1 Intrinsically Safe when installed with approved barrier, such as the Maxi-Tronic DigiMax BC-1 Barrier Converter.

 

For an instant-sensing pushbutton-style belt misalignment sensor see the BeltTracker CSA certified Class II Div. 1 sensor!

 

RB21 Specs:

  • “21” Class II, Div.1 CSA certification pending.
  • Compact size: 5.25” (133mm) x 3.25” (83mm)
  • Integrated 1/2″ NPT conduit fitting.
  • Available with integrated armor cable and cord-grips for non-conduit installations.
  • 1/2″ spacer available to extend the Disc further into the leg casing.
  • Includes foam mounting gasket and mounting hardware.

 

RB21 Sensors are fully compatible with these Maxi-Tronic Controls:

  • MaxiScan 12 and 12M: 12 inputs with independent set-point and output relays. Model 12M includes a motion controller.
  • MTDT24: 24 input scanner for switch and thermocouple sensors, 2 output relays.
  • HB/RB: 8 or 16 switch or PTC Thermistor inputs w/status indicators and 1 output relay.
  • PLC: Easily connects to PLCs.

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