Monitoring Equipment

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4B Components Ltd.

Bearing and Surface Temperature Sensors

  • Screw in positive mount installation and grease zerk for bearing lubrication.
  • Continuous temperature monitoring (RTD or NTC type sensors).
  • Adjustable probe (2 in., 4 in., 8in. lengths) and surface mount versions available.
  • 1/2 in. NPT conduit entry.
  • CSA Class II, Division 1 approved.

4B Components Ltd.

Belt Alignment Sensor

  • Detects belt tracking and misalignment problems on bucket elevators and conveyors.
  • Sensor detects the lateral force of the belt or pulley and activates a voltage free relay contact to alarm or shutdown the machine.
  • Electro-mechanical limit switch with no moving parts.
  • External test functionality and LED indication.
  • CSA Class II, Division 1 approved.

4B Components Ltd.

Hazard Monitoring System

  • Hazard monitoring systems for bucket elevators and conveyors.
  • Microprocessor controlled units for monitoring: belt speed, belt alignment, bearing temperature, pulley alignment, and plugged conditions.
  • Can be standalone or interfaced with PLC.
  • Alarm and shutdown features.
  • CSA Class II, Division 1 approved for the U.S.A.

4B Components Ltd.

Speed Monitoring—M800 Elite

  • Inductive sensor for monitoring shaft underspeed conditions.
  • Universal voltage (24 - 240 VAC/VDC).
  • Magnetic calibration with dual set-points: 10% and 20%.
  • Totally sealed construction: submersible.
  • Can be installed with Whirligig® target/bracket/guard.
  • CSA Class II, Division 1 approved.
  • IP67 protection.

4B Components Ltd.

Whirligig® — Universal Shaft Sensor Mount

  • Fully guarded target/bracket/guard for easy mounting of motion sensors.
  • Suitable for all industry standard cylindrical or DIN style inductive sensors.
  • Available with 1, 2, 4, or 8 targets.
  • Requires 1/2 inch UNC tapped hole in the machines shaft for installation.
  • Optional MagCon™ magnetic connector available (150 lbs. pulling force).

CMC Industrial Electronics

CMC Digital HazMon Systems

  • Shaft speed – bearing temperature – belt alignment – grain temperature.
  • Fully integrated, intrinsically safe systems – for large or small facilities.
  • Wireless sensing capability available – when required.
  • Safer operations – avoid costly nuisance alarms.
  • Field-proven – over 200,000 sensors installed.

CMC Industrial Electronics


  • All parts included – sensors, mounting brackets, nuts, and bolts.
  • Significantly reduced installation costs.
  • Consistent and efficient installation across sites.
  • Pre-packaged kits for conveyors, drags, legs, and more.
  • Straightforward and convenient to add more machines.

CMC Industrial Electronics

Roadmap to HazMon Safety

  • Guidance on OSHA and NFPA Standards.
  • HazMon system safety audits and inspections.
  • HazMon system set-up and commissioning.
  • Sensor and alarm testing and validation.
  • Thorough installer and operator training.

CMC Industrial Electronics

WS2-HM – Next Generation HazMon

  • Works with any PLC/PC or hand-held – no annual license fees.
  • User-friendly navigation and machine graphics.
  • At-a-glance alarm location and condition identification.
  • Accountability and predictive maintenance capability.

Conveyor Components Co.

Model BSD Belt Speed Detector

  • A “traction action” motion control that indicates when a conveyor belt has slowed or quit moving altogether.
  • Can be adjusted as an overspeed, underspeed, or zero speed control.
  • Can shut down rotating equipment before damage is encountered.
  • Provides protection for interlocked conveyor belts, especially if one of the belts fails due to overloading or quits due to tearing.

Conveyor Components Co.

Model CMS Motion Sensing Control

  • Signals underspeed, overspeed, or zero speed field replaceable.
  • Cast aluminum housing.
  • Heavy-duty shaft and bearings.
  • Adjustable time delay.
  • Explosion proof construction is optional.

Conveyor Components Co.

Model DLC Diaphragm Level Control

  • 2 dry (unpowered) microswitches that activate when material within the bin or chute presses upon the diaphragm face.
  • Can be used as high level switch, a low level switch, or a plugged chute detector.
  • Bronze air vent allows equal pressurization of both sides of the diaphragm.
  • Cast aluminum housing.

Conveyor Components Co.

Model RMS Non-Contact Motion Control

  • Provides accurate and reliable speed sensing of rotating shafts and machinery.
  • Unit includes a DIN rail mount, 6 ft. of lead wire, and a remote sensor.
  • Signals underspeed or overspeed.
  • NEMA Type 4 polycarbonate enclosure.

Conveyor Components Co.

Model VA Vertical Belt Alignment Switch

  • Utilizes explosion-proof micro switch that is UL listed and CSA certified.
  • Protects legs from severe damage that may result from misalignment of vertical bucket belts.
  • Gives warning signals and/or can stop the leg.
  • Cast aluminum housing.

Electro-Sensors, Inc.

Electro-Sentry 1 Single-Leg Hazard Monitoring System

  • Display all your sensor data in one place at one time.
  • Instant identification of warning or alarm source.
  • Green, Yellow, and Red LED’s for each sensor to display alarms.
  • Direct interface to Electro-Sensors’ speed, bearing temperature, and belt alignment sensors.
  • 13 inputs and 8 relay outputs for maximum flexibility.
  • One-button testing for all sensors, set points, and alarm output relays.
  • Connect to Class II, Div. 1 sensors.

Electro-Sensors, Inc.

SG1000 Slide Gate and Valve Position Monitors

  • Rugged, explosion proof, and NEMA 4X.
  • Retains gate position in the event of power loss.
  • Simple push-button calibration.
  • Multiple mounting options for 4-20 mA position feedback on:
    >Slide gates.
    >Distributor heads.
    >Clam shell buckets.

Electro-Sensors, Inc.

Shaft Speed Sensors/Switches and Tachometers

FB420 shown with EZ Mount and Disc Guard

  • Programmable 4-20 mA output with one output relay.
  • Internal LCD for programming and troubleshooting.
  • Explosion proof, NEMA 4X rating.
  • Class I, Div 1, Groups C, D.
  • Class II, Div 1, Groups E, F, G.

PM500 Process Meter

  • Switchable two input digital display.
  • Optional two or four relay outputs.
  • Full diagnostic functions.
  • Sensor failure detection.

Electro-Sensors, Inc.

TT420-LT Temperature Sensors

  • Monitor bearing temperature and belt alignment.
  • Easy to install 2-wire device.
  • 4-20 mA output, factory calibrated -40ºC to +120ºC.
  • Class II, Div 1, Groups E, F, G, and Class III, Div 1.
  • The TT420Z-LT bearing temperature sensor features an NPT grease fitting to permit lubrication, and an adjustable probe depth for accurate measurement.
  • The TT420S-LT belt alignment sensor features a stud mount adapter for easy attachment to a rub block door assembly (available in hinged, adjustable, or uni-strut versions).

ERIKS - Kansas City

Shaft Mount Underspeed Detector

  • Mounting: Magnetic EZMount or 1/2 inch 13 shreaded shaft.
  • Dual-setpoint 10% and 20% slowdown relays.
  • Start-up protection monitors for non-start, slowdown while starting, and maximum time-to-start conditions.
  • Easy one-step calibration.
  • Status and Target LED rotation indicators.
  • Variable start-up delay and 30 second maximum timeout.
  • Speed range: 8 to 1,000 rpm.

Jacobsen Holz Corporation

Seed Corn Sheller “Flow-Thru” Moisture Monitor

Is “wet” seed getting into your bulk storage?

  • SMST Sheller Seed Flow Moisture Monitor System generates a “real time” seed moisture profile as seed is shelled for immediate feedback of the drying process.
  • Sounds alarm if “wet” corn is heading into storage.
  • PC-based application and sheller operator console.
  • Pictured to right: SMST sheller operator console.

Maxi-Tronic, Inc.

EZ521 Shaft Mount Underspeed Detector

  • 10% and 20% slowdown relays.
  • Tachometer pulse output.
  • MODBUS and RS458 options.
  • Status LED indicators.
  • Universal supply voltage.
  • Class II Div. 1 certified.

Maxi-Tronic, Inc.

Hazard Monitoring

  • Applications: Bearings, gear boxes, hammermills, belt misalignment, motors, mechanical drives, etc.
  • Types: RTD, PTC, thermocouple, and temperature switch.
  • Designs: Grease fitting insert and surface mount.

Maxi-Tronic, Inc.

MaxiScan 24 Leverages Technology

  • Provide advanced feature in a small enclosure.
  • Intuitive touch screen with alarming and graphing.
  • Monitors bearing and surface temperatures, belt misalignment, flow, and other sensors.
  • With internet access has built-in text and email alerts.
  • Access to MaxiScan data from any web enabled device.
  • Warnings, alarms, logins, and overrides are automatically logged.

Process Control Systems, Inc.

MAXIGARD® A5000 Series Zero Speed Switches

  • Complete systems to monitor belt conveyors, bucket elevators, screw conveyors, and other material handling equipment.
  • Prove rotation of critical rotating equipment.
  • Robust design well suited for industrial applications.
  • Five-year warranty.

Process Control Systems, Inc.

MAXIGARD® A6000 Series Leg Monitors

  • Complete systems to monitor belt speed, belt misalignment, and bearing over temperature of bucket elevators.
  • Modular system can be custom designed for special applications.
  • Individual sensors for each system function.
  • Five-year warranty.

Process Control Systems, Inc.

MAXIGARD® AM1000/AM2000 Series Adjustable Setpoint Speed Switches

  • Complete systems to monitor bucket elevators, belt conveyors, screw conveyors, and other material handling equipment.
  • Detects belt slipping and/or other mechanical failures.
  • Prevents overloading and downtime.
  • Five-year warranty.

Process Control Systems, Inc.

MAXIGARD® C3000 Series Speed Transmitters

  • Converts shaft RPM to a 4-20 mA or 0-10 VDC analog signal.
  • Complete systems include sensor, magnetic disc or collar, and transmitter.
  • Several models with flexible options for most industrial applications.
  • Five-year warranty.

Rolfes at Boone

Bearing Temperature – Belt Alignment Speed Monitoring

  • The BTA monitors up to 256 bearing and belting alignment sensors.
  • Compatible with all existing type “T” termocouple systems.
  • Program two separate high limit and one rise above ambient set points for each sensor.
  • Automatic Ohm reading feature for system integrity checks.
  • Download reports directly to your printer.

Tri-States Grain Conditioning, Inc.

Hazard Monitoring Systems

  • BearScan 24 bearing temperature and belt alignment systems.
  • MT400 motion sensors and control systems.
  • Continuously on-line to alert management of potential problems with overheated bearings and misaligned leg belts.
  • Compatible with any Type-T thermocouple sensor.
  • Reads up to 24 points of either bearing or belt alignment system.
  • Built-in memory for set points in case of power loss.
  • Individual operator adjustable set points for each sensor.
  • The perfect retrofit for old, obsolete monitors.

Variable Automation & Manufacturing

VMS – Multi-Use Sensor & VES – Electrical Sensor

  • Install the VMS on a diverter valve, distributor, gearbox, motor or gate to detect rotation and position. 
  • Install the VES to detect phase loss or motor overload.
  • No mechanical parts to break, wear or fill with water.
  • Voltages: 120V to 240Vac, 12V to 24Vdc.
  • Molded cable or Plug in cable.
  • Outdoor or explosion proof rated.

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