Choosing the right hazard monitoring system

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					 Digital Re-print - May | June 2011
Choosing the right hazard monitoring system

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        FEATURE                                                                                                                                                                                                                                                                                 FEATURE

                                                                                                                                                                                                                                       ATEX, CSA                extensive range of CSA / ATEX / IECEx
                                                                                                                                                                                                                                       and IECEx                approved sensors that work with these con-
                                                                                                                                                                                                                                       certification            trol units, including bearing temperature sen-
                                                                                                                                                                                                                                           The Watchdog         sors, speed sensors, misalignment switches,
                                                                                                                                                                                                                                       Elite System             level indicators and choke switches. The
                                                                                                                                                                                                                                           A well proven        range is constantly evolving to offer custom-
                                                                                                                                                                                                                                       multi-functional         ers the best technical standard.
                                                                                                                                                                                                                                       hazard       monitor         4B’s technical team can recommend the
                                                                                                                                                                                                                                       for bucket eleva-        ideal combination of sensors and
                                                                                                                                                                                                                                       tors and conveyors,      monitoring systems to suit their
                                                                                                                                                                                                                                       the Watchdog Elite       customers’ requirements and budg-
                                                                                                                                                                                                                                       has recently been        et. They can also offer a scalable
                                                                                                                                                                                                                                       relaunched with con-     solution starting with carefully cho-
                                                                                                                                                                                                                                       tinuous bearing tem-     sen equipment and systems that
                                                                                                                                                                                                                                       perature monitoring.     can be expanded at a later date to
                                                                                                                                                                                                                                           The Watchdog         encompass other machines in the plant.
                                                                                                                                                                                                                                       Elite allows com-            4B also offers a commissioning service
                                                                                                                                                                                                                                       plete monitoring of      as well as competent after-sales technical
                                                                                                                                                                                                                                       multiple hazards in      service to help customers overcome any
                                                                                                                                                                                                                                       a bucket elevator or     technical problems with their monitoring

   Choosing the right
                                                                                                                                                                                                                                       conveyor, including      equipment.
                                                                                                                                                                                                                                       belt and pulley align-
                                                                                                                                                                                                                                       ment (top and bot-

                                                                                                                                                                                                                                       tom), bearing tem-          More   inforMation:
                                                                                                                                                                                                                                       perature, belt speed
                                                                                                                                                                                                                                       and blocked chute           Braime Elevator Components Ltd
                                                                                                                                                                                                                                       conditions.                 Hunslet Road
                                                                                                                                                                Compliance:                                                                                        Leeds, LS10 1JZ

                                                                                                                                                                                                                     The Watchdog Elite system uses a range
                                                                                                                                                                     Does the system have the necessary haz-     of compatible sensors to monitor differ-          United Kingdom
                                                               by Simone Biock                                                                                                                                                                                       Email:
                                                                                                                                                                ardous area approvals for the region where       ent hazards, such as the belt misalignment
                                                               Braime Elevator Components Ltd                                                                                                                                                                        Website:
                                                                                                                                                                it is to be used: ATEX for Europe, CSA for       sensors “Touchswitch”, BAP2” and WDA3”,
                                                                                                                                                                North America & Canada and IECEx for the         the      WDB
                                                                                                                                                                rest of the world?                               bearing tem-

                he n 4 B int roduced t he ir           Scalability:                                       potential hazards dis-                                     At 4B, 25 years of experience have          perature sen-
                Wat c hdog E lite bucke t                 Make sure that the system is able to grow       played and identified? Is                             shown that there is no “one size fits all”       sors and the
                elevator monitoring system in          with your operations. You might just want to       there a well-documented                               hazard monitoring system. The company’s          “Binswitch”
   the early 1980’s, they were the first on            monitor one elevator, for a start, but what        instruction manual available?                         approach to product development is very          capacitive
   the market to offer a system that could             happens if you want to monitor an additional       Does the supplier offer a com-                        much bottom-up through discussions with          sensor.
   monitor a complete bucket elevator                  elevator, or if you want to add more sensors       missioning service? And what level of support         the end-user upwards, rather than sales-             An LCD
   or conveyor system. No more need to                 to the monitoring system?                          can you expect, if there is a problem?                driven. And it is this industry driven           screen dis-
   monitor different hazards separately.                                                                                                                        approach to product development that has         plays elevator
   Taking the hassle out of hazard monitoring,         Sensor options and                 Table 1:                                                              led the engineering team to develop two          status mes-
   the Watchdog Elite has quickly established          interfaces:                                                         T500 Elite       Watchdog Elite      distinctive multi-function hazard monitor-       sages (avail-
   itself as the industry reference in hazard             What hazards is the sys-                                                                              ing systems, each of them well researched        able in four
   monitoring.                                         tem able to monitor? Belt                                                                                and tested and using the same high quality       different lan-
                                                            and pulley misalign-              Bearing temperature
                                                                                                                          (continuous)        (continuous)      components, but different in the variety         guages) and
                                                            ment? Underspeed &                                          max. 256 sensors*    max. 6 sensors     of sensor options and the scope of the           a super-bright
                                                            Overspeed? Belt slip-                                         (continuous)        (continuous)      applications they can cover.                     LED screen
“what should customers look                                 page? Blocked chute
                                                                                                         Belt speed
                                                                                                                        max. 256 sensors*    max. 1 sensors                                                      displays belt
out for when selecting a                                    condition? Bearing                                                               max. 4 sensors     The T500 Elite Hotbus System                     speed. RS485
                                                            temperature? – And                        Belt alignment max. 256 sensors*                             This is 4B’s top of the range system, able    communica-
system to monitor their bucket                              what is the choice of
                                                                                                Plugged condition                                  
                                                                                                                                                                to monitor entire plants where the bucket        tion is also
                                                            compatible sensors?                                                                                 elevators and conveyors being monitored          available for
elevators and conveyors?”                                   Do you have to use                       Communication            RS485              RS485          are spread out across large distances. A         connection to
                                                            the supplier’s range of                      interfaces            API                API           multi-function hazard monitor, it can moni-      plant comput-
                                                            sensors, and are they                      Test function                                          tor belt speed/alignment, bearing tempera-       ers / PLCs.
        Today, there are a number of systems on        up for the job? Does it have                     Alarm &                                                 ture, pulley alignment and plug condition. It    Calibration
   the market, and customers may find it more          a communication interface,                                                                             has been designed as a serial communica-         and parame-
                                                                                                shutdown function
   difficult to establish which system is best for     to be connected to a PLC                                                                                 tion system, to monitor up to 256 sensors,       ter adjustment
                                                                                       Logging & trending software                                                                                             are all menu-
   them. When you add up all the additional costs      or PC?                                                                                                   with a scan time of only 4 seconds! With
   of adding sensors and servicing the system,                                                                           Multiple elevators                     automatic machine shutdown capability            driven     and
   then this decision becomes even more compli-        User friendliness                                Applications
                                                                                                                           & conveyors;     Several elevators   and PLC / PC compatibility, this advanced        kept simple.
   cated. And when you consider the cost of the        and support:                                                     remote monitoring     & conveyors       microprocessor based system offers low               The sys-
                                                                                                                            across site
   potential downtime and even damage, then it             How easy is the system                                                                               cost installation, versatility and easy system   tem is ATEX,
   is absolutely crucial to get this decision right!   to use for the people who                                              ATEX               ATEX           expansion. Logging and trending software         CSA        and
        So what should customers look out for          have to operate it? Is there                    Certifications          CSA                CSA           is also available for historic data analysis     IECEx certi-
   when selecting a system to monitor their            an in-built test and diagnos-                                          IECEx              IECEx          and preventative and predictive machine          fied.
   bucket elevators and conveyors?                     tic function? And how are                          * total number of sensors, all sensors combined       maintenance.                                         4B has an

   8 | may - June 2011                                                                                                  Grain &feed millinG technoloGy          Grain &feed millinG technoloGy                                                                                               may - June 2011 | 9
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 May	                       2011
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                             Hazard Monitoring
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                        •    Conditioning
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Description: When 4B introduced their Watchdog Elite bucket elevator monitoring system in the early 1980’s, they were the first on the market to offer a system that could monitor a complete bucket elevator or conveyor system. No more need to monitor different hazards separately. Taking the hassle out of hazard monitoring, the Watchdog Elite has quickly established itself as the industry reference in hazard monitoring.