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roofAlert™
Intrinsically Safe Mine Roof Monitoring System

Holville is pleased to announce the certification of our new state of the art intrinsically safe automatic roof monitoring system. In conjunction with Strata Control technology, we have developed a data logging system that automates the collection of roof extensometer readings to a safe area PC.   The system utilises SCT's proven Rock-IT™ and/or Clock-IT™ visual readout extensometers togther with Holville's roofAlert™ data logging modules (rAMs) and instrinsically safe data network.

The rAMs have been assessed to IEC 60079-0:2011 and IEC 60079-11:2011. 

Click here to download a copy of the network diagram:

roofAlert Monitoring System Network Diagram roofAlert Monitoring System Network Diagram (103 KB)

 

roofAlert Monitoring System Network Diagram with I.S. parameters roofAlert Monitoring System Network Diagram with I.S. parameters (2583 KB)

       

 Features 

  • Automatic monitoring and data collection
  • Real time data transmission to safe area PC
  • 10 bit data resolution
  • Ultra low power consumption
  • Plug 'n Play for connection of new modules (no prior configuration required)
  • An extensible network with many thousands of possible monitoring points
  • Any network topology over long distances (kms)
  • User configurable monitoring rates
  • System heartbeat to identify and report non-operational modules
  • CRC-16 message error detection to prevent transmission of corrupted data
  • Data saved to csv files or database tables
  • Fully encapsulated, fully sealed to IP55
  • Electrical self test
  • Status LED
  • Galvanic isolation for enabling comms between separately powered networks
  • Optional temperature monitoring
  • Optional triaxial tilt monitoring

      More details on the roofAlert Module (rAM) can be found here.

      More details on the Type 3 intrinsically safe network modules can be found here.

       

 Downloads

 

easyJoin easyJoin (20307 KB)

                        

Type 8 Node Installation Wiring Diagram (2-wire) Type 8 Node Installation Wiring Diagram (2-wire) (201 KB)

Electrical Installation Instructions for 4 wire Type 8 Nodes Electrical Installation Instructions for 4 wire Type 8 Nodes (197 KB)

         

Instructions for the Use of 3 way cable joiner for one or two pair cable Instructions for the Use of 3 way cable joiner for one or two pair cable (426 KB)