PO Box 234
Rocky Gap, Va 24366
(276) 928-1712
FAX: (276) 928-1814
Rocky Gap, Va 24366
(276) 928-1712
FAX: (276) 928-1814
AMR recently installed the first of three Mine Net™ Systems. The initial system was installed after a trial run in a Southern West Virginia Mine. After several months of observation and trial, mine operators were well pleased with the results they were receiving and decided to make the system a permanent fixture in their safety plans. The installation of two more systems in Southwest Virginia soon followed and both systems were termed a success.
We are very pleased with the progress on the Mine Net™ System and most importantly, we are excited that we have been an integral part of these company’s safety plans. We currently have nine additional purchase orders for systems to be installed by this year’s end.
As technology changes in the mining industry, AMR strives to satisfy the needs of our growing customers. Our new Ethernet-based MC-4000-ET Mine Monitoring System and MC-4210-CO Gas Monitor do just that. Utilize the latest in available technology while improving both the safety and productivity of your mines.
As an integral part of this new technology, our Modbus TCP software application runs in the background of your selected HMI (human-machine-interface) graphics package. Utilizing our Gateway hardware, this application is configured to poll our Slave devices and then provide OPC compliant tags for easy display in your HMI. Select from off-the-shelf software graphics packages such as Wonderware®, RSView®, Cimplicity®, Citect®, etc.
Barrick Goldstrike, located in Elko, Nevada and a subsidiary of Barrick Gold Corporation, recently ordered its 400th CB System from American Mine Research, Inc. Barrick has used AMR’s CB-200 and CB-PRO Systems on its mining equipment’s circuits since the early 1990’s in a unique configuration that dramatically improves both the safety and efficiency of its underground mining processes.
MSHA-approved, the CB-PRO completely replaces a traditional molded case breaker by utilizing a microprocessor-based control unit with properly-sized vacuum contactors, current and ground fault transformers, and fuses. At Barrick, the CB-PRO is used in conjunction with AMR’s GM-200 pilot ground monitor to remotely monitor and control the circuits for the mine’s ventilation fans (50 HP to 200 HP) and trailing power feeders to the drilling equipment (480V and 995V). Each CB-PRO is configured to comply with MSHA CFR regulations for both trailing cable and motor applications.
The CB-PRO/GM-200 circuit configuration allows drill operators to remotely open and close their circuits without having to travel back and forth to the power source. By pushing either the start or stop button located on the drill’s controls, an interposing relay then closes or opens the pilot circuit, provided the circuit is within the grounding circuit ohm values. The circuits are also interfaced with a programmable logic controller (PLC) located on each mobile load or power center. The PLC will validate that certain open and closed conditions are met and then digitally actuate the CB-PRO to open or close the circuit. The PLC also allows the circuits to be remotely opened or closed through a distributed control system (DCS) master station located at the surface. Data from the CB-PRO (phase currents, phase voltages, fault conditions, etc.) is also communicated real-time to the surface via Data Highway+™ to the DCS’ master station. Trip settings and trip delays on each circuit can also be altered from the master station. Presently, Barrick has 33 mobile load centers (1000kVA) each with 12 circuits on each center.
The "CB Pro" is a power safety system that was originally developed for the mining industry. The system uses a micro processor based control unit, vacuum contactors, current and ground fault transformers, fuses, and low voltage remote lockout stations.
"Stamping Journal" in August 2004, published an article about the "CB Pro", saying "Power safety system reduces destacker press LOTO downtime" and "The system reduced the original procedure by about 12 minutes per LOTO, adding up to a savings of tens of hours per month in downtime on a single press, to date the plant has installed 10 systems on its presses." Click here to read the article.
If you would like a copy of the manual in PDF, Click Here!
Feel free to contact us at:
AMR Inc.
P.O. Box 234
Rocky Gap VA 24366
Phone: 276-928-1712
Email: sales@americanmineresearch.com
