Watchdog™ Elite
Hazard Monitoring System for Bucket Elevators and Conveyors

         
 

The Watchdog™ Elite (WDC3) is a microprocessor controlled unit with combined belt speed, belt alignment, bearing temperature, pulley alignment and plugged condition monitoring for bucket elevators and conveyors.  An LCD screen displays machine status messages (available in four different languages) and a super-bright LED display shows belt speed.  Calibration and set-up parameters are accessed via a password and front panel touch buttons.

 
     
 
 

Features:

  Watchdog Elite Hazard Monitor  
       
 

• Designed for One Elevator Leg or Conveyor

   
 

• Monitors: Belt Speed, Belt Alignment, Bearing Temperature,

   
 

   Pulley Alignment & Plug Conditions

   
 

• Fully Programmable via Front Panel Touch Buttons

   
 

• LCD Displays System Status & Belt Speed

   
 

• Logging & Trending Software Available

   
       
  Product Questions? (309) 698-5611Phone or Email  Email    
     
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  • Specifications
  • Downloads
  • Sensors & Accessories
  • FAQ's
  • Images
  • Videos
  • Monitoring Design Service
  Watchdog™ Elite Technical Specifications:   Literature:  
  • Power Supply - 120 to 240 VAC or 24 VDC   Product Datasheet Download PDF  
  • Power Consumption - 12 Watts Maximum   Full Line Product Catalog Download PDF  
  • Alarm Relay Contacts - 2x Voltage Free - Changeover (10A @ 240 VAC)   (See Downloads for more literature)  
  • Stop Relay Contacts - 2x Voltage Free - Changeover (10A @ 240 VAC)      
  • Additional Relay Contacts Available - Optional PLC Interface Board   Technical:  
  • Sensor Supply - 24 VDC   Product Manual Download PDF  
  • Sensor Inputs - 4 at 24 VDC Digital & 6 at 24 VDC Analog   Installation Guide Download PDF  
  • RS485 Serial Communication      
  • Speed Range - 20 to 4,000 Pulses/Minute   Product Dimensions:  
  • LCD Screen - Status Messages   Download AutoCAD .dwg (AutoCAD)      Download PDF .pdf  
  • LED Display - Belt Speed      
  • Status Indicators (Front Panel) - Alarm, Stop & Sensor Indication   Compare Speed Switches Compare Monitoring Systems  
  • Keyboard - 3 Programming Keys         
      Wireless Options  
  Approvals:    
  • CSA Class II Div 2 Groups F & G    
  • CSA Class II Div 1 Available (Class 2 Power Supply Required)    
  • ATEX, CE, IECEx and GOST-R Versions Available    
       
  CSA - USA & Canada ATEX - Europe CE - Europe            
       
       
       
         
  Part Numbers and Accessories:      
  • WDC3NV46C ~ Watchdog™ Elite      
  • WDPLCB2V4C ~ Optional PLC Interface Board      
  • PS3800V4 ~ Class 2 Power Supply (24 VDC / 3.8 A)      
  • F5004V46C ~ F500 Elite Fieldbus Gateway**      
    ** Available Gateways - Ethernet, DeviceNet, Profibus, Modbus      
         
  Literature:   Product Dimensions:  
  Product Datasheet Download PDF   Download AutoCAD .dwg (AutoCAD)      Download PDF .pdf  
  Full Line Product Catalog Download PDF      
      Articles, Papers & Case Studies:  
  Technical Manuals & Documentation:   Hazard Monitoring Overview - GEAPS Paper Download PDF  
  Watchdog Elite Manual Download PDF   Monitoring Equipment (Grain Journal Series) Download PDF  
  Watchdog Elite Installation Guide Download PDF   Bucket Elevator Monitoring Systems Download PDF  
  Watchdog Logging & Trending Software Download PDF   Combustible Dust Standards (Grain Journal Series) Download PDF  
  RS485 Wiring Guide Download PDF   Slack / Broken Chain Detection Download PDF  
  Addendum: Watchdog RS485 Communications Download PDF      
  Addendum: Touchswitch Wiring Download PDF   Wireless Options:  
  Addendum: WDA Motion Sensor Wiring Download PDF        Wireless Options  
  Watchdog NTC to F500 DeviceNet Download PDF    
  Watchdog NTC to F500 Ethernet / Modbus TCP Download PDF    
  Watchdog NTC to F500 Modbus RTU Download PDF    
  Watchdog NTC to F500 Profibus DP Download PDF    
       
  Note: Product manuals for older part numbers can be    
  found under the Technical Support area.      
         
  To See Illustrated Sensor Placement Diagrams For Specific Equipment, CLICK HERE  
         
 
Bearing Temperature Sensor
 

Bearing Temperature Sensor

The ADB series have been designed to allow the depth of the sensor to be adjustable.  They screw directly into a bearing housing through the existing grease zerk thread.  Each sensor is fitted with a grease zerk to allow lubrication of the bearing without the need for removal of the sensor.

More Info

 
     
     
     
     
     
     
         
 
 
         
 
ADB Bearing Sensor Tester
 

ADB Bearing Sensor Tester

The ADB Sensor Tester has been designed to test 4B adjustable depth bearing (ADB) temperature sensors in the field.  During planned maintenance or periodic testing, this diagnostic tool to verify the alarm and shutdown sequences of the control unit are functioning as expected.

More Info

 
     
     
     
     
     
     
         
 
 
         
 
Surface Temp Sensor
 

Surface Temperature Sensor

The WDB7 bolts directly onto a bearing housing, motor, gearbox, or machine casing for continuous temperature monitoring.

More Info

 
     
     
     
     
     
     
 
 
         
 
 Touchswitch Belt Misalignment Sensor
 

Belt Misalignment Sensor

The Touchswitch™ is an electromechanical limit-switch with no moving parts, which detects tracking and misalignment problems on bucket elevators and conveyors. Unlike a rub block that utilizes friction (heat) to activate, the Touchswitch is pressure sensitive for safer and more reliable monitoring.

More Info

 
     
     
     
     
     
     
         
 
 
         
 
WDA Motion Alignment Sensor
 

Motion Alignment Sensor

WDA series are non-contacting extended range magnetic proximity sensor, not affected by dust or material build up, used to detect moving ferrous material up to 3 inches away from the sensor.

More Info

 
     
     
     
     
     
         
 
 
         
 
P800 Proximity Switch
 

Inductive Proximity Sensor

The P800 detects the presence of metallic objects in hazardous areas such as handling, storage, packaging, conveying, and processing.  It also can detect the position of doors, slides, gates and containers.

More Info

 
     
     
     
     
     
     
         
 
 
         
 
SpeedMaster Speed Switch Tester
 

SpeedMaster™ Speed Switch Tester

The SpeedMaster™ with Pulse Pilot is the only device that accurately tests the calibration of a speed switch, and allows testing of the alarm and shutdown features of the sensor while installed on the machine shaft.

More Info

 
     
     
     
     
     
     
         
 
 
         
 
Rotech Encoder
 

Rotech Rotary Shaft Encoder

The Rotech rotary shaft encoder is used primarily for protecting equipment and personnel from dangerous underspeed/belt slip conditions in extreme environments.

More Info

 
     
     
     
     
     
         
 
 
         
 
Binswitch Plug/Choke Sensor
 

Plug / Choke Sensor

The Binswitch detects level or plug situations for bulk granular solids or liquids in tanks, bins, or silos and can be used as a plug or choke detector in chutes, conveyors and elevator legs.

More Info

 
     
     
     
     
     
         
 
 
         
 
Rotary Level Indicator
 

Rotary Level Indicators

The Roto-Level series are electromechanical rotary level indicators for point level indication of bulk granular solids in bins, tanks, silos.  Available with vertical extensions up to 14 feet.

More Info

 
     
     
     
     
     
         
 
 
         
 
Autoset Level Indicator
 

Auto-Set™ Level Indicators

The Auto-Set™ series are RF capacitance point level indicators with push button calibration and material build-up compensation for high, intermediate or low level detection of liquid, powders or free-flowing granular solids.  Once the unit is calibrated for a specific application, it never has to be re-calibrated.  Available with vertical extensions up to 33 feet.

More Info

 
     
     
     
     
     
     
     
         
 
 
         
 
PLC Interface Board
 

PLC Interface Board

The optional Watchdog™ PLC interface board (WDPLCB2V4C) provides additional alarm relay contacts for under speed, misalignment, and bearing temperature.

 
     
     
     
     
     
     
         
 
 
         
 
F500 Fieldbus Gateway
 

F500 Elite Fieldbus Gateway

The F500 is a communications gateway that allows for single point access to a Watchdog™ Elite system via Fieldbus protocol.  Fieldbus communication protocols supported include: Ethernet IP, Modbus TCP, Modbus RTU, DeviceNet, Profibus and others.

 
     
     
     
     
     
     
         
  Does 4B offer inspection, testing and commissioning services for your hazard monitoring systems?  
  Yes, the 4B Tech Team is available for on site services.   For more information, CLICK HERE.  
     
     
     
     
     
     
     
     
     
 
Watchdog Elite
Watchdog Elite Installed
Watchdog Elite Installed Multi Units
   
   
   
   
   
   
   
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  4B Hazard Monitoring Systems CSB Video - Action To Prevent Dust Explosions  
       
   
   
   
   
   
   
   
   
   
   
   
   
  CSB Video - Combustible Dust: An Insidious Hazard Westwego Grain Elevator Disaster  
       
     
   
   
   
   
   
   
   
   
   
   
   
  CSB Video - What Led to the Imperial Sugar Explosion    
       
  Preventative maintenance can help reduce the risk of equipment failure and consequent downtime.  When it comes to  
  monitoring your bucket elevators and conveyors, 4B can recommend the ideal combination of sensors and monitoring  
  systems to suit your requirements and budget.  
     
  4B has an extensive range of CSA / ATEX / IECEx approved hazard monitoring systems, misalignment switches,  
  bearing temperature monitors and level controls.  4B can offer you anything from a replacement sensor, to a fully  
  integrated hazard monitoring system which can be operated as a stand-alone device or connected to your PLC.  
     
  And if you do not want to install hazard monitoring sensors on every piece of equipment in your plant straightaway, 4B  
  can offer you a scalable solution that can be expanded as your needs grow.  
     
  To get a free recommendation from our engineers, CLICK HERE to fill out our online form.