American Innovations (AI)

- Model RM4210 - AC Coupon Test Station Monitor (SAT)

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The RM4210 AC/DC coupon remote monitoring unit (RMU) monitors oil and gas assets in cathodic protection (CP) applications. Located at coupon test stations, it measures the induced AC voltage, AC current, and associated current density that can be present on pipelines that are co-located with high-voltage AC power lines. The RM4210 uploads these measurements via satellite to Bullhorn Web, a web-based asset manager, so you can diagnose AC current issues, monitor them over time, and optimize your AC corrosion mitigation systems.

Remote monitoring for:

  • AC coupons
  • AC and DC current density
  • AC and DC pipe-to-soil
  • Native pipe-to-soil
  • PCR AC current

Mounted on a test station, the RM4210 measures induced AC voltage, AC current, and associated current density. It also measures DC voltage, DC current, instant-off and current flowing through a decoupling device. These measurements are automatically uploaded to Bullhorn Web via satellite communication. Once uploaded, you can easily monitor them and use them to design andoptimize your AC mitigation systems.

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  • Form factor – The RM4210 is a fully integrated unit that can be mounted on any AC/DC coupon test station. All components, including the antenna, are internal so it is easier to transport and install as well as it’s less likely to incur damage that will require a future repair visit.
  • Ease of installation – Installing the RM4210 normally takes just a few minutes. Simply connect the pigtail to the test-points, affix it to the top of the test station, and establish communications using Bullhorn® Tools Mobile via Bluetooth. You can then use the Bullhorn Web asset manager to apply detailed configurations from the comfort of your office.
  • Accuracy – The RM4210 measures with one percent of reading accuracy all the way through the range with auto-calibration and auto-zero for every measurement. For example, a 1 mV measurement will be accurate within ±10 microvolts. Accuracy is especially critical when using a small AC coupon, as small errors are magnified when the current density is calculated.
  • Detailed Reporting – Quickly identify problem areas and ensure mitigation effectiveness using flexible reports and graphs.

  • Test station cap form factor
  • One percent of reading accuracy
  • Long lasting battery
  • Alerts when current density exceeds thresholds
  • Measurement frequency up to every quarter hour
  • Customizable AC monitoring graphs and reports
  • 10 MΩ impedance
  • Flexible reporting
  • Mobile configuration and setup application
  • Queued two-way communication
  • Sends alarms based on specific events (e.g. reading out of range, power loss, etc.)
  • Configurable over-the-air via Bullhorn Web
  • Bullhorn Web system communicates unit status by email, text, or Web notifications
  • More than 6.6 kV built-in surge protection per IEC 61000-4-5 specifications

  • Easy to install and maintain, simply latch and unlatch as needed. No separate antenna to mount.
  • Extremely accurate current and voltage measurements
  • Reduced maintenance costs and visits to the unit
  • Avoid incidents and prevent corrosion due to AC current
  • Easily troubleshoot issues and identify cause of AC current
  • Show effectiveness of mitigation and easily drill down on trouble areas
  • Improved pipe-to-soil accuracy where just a few mA can be the difference between being in compliance and not
  • Easily generate reports and hone in on trouble areas quickly
  • No need to carry a laptop into the field to set a unit up, do it right from your mobile phone
  • Poll, reconfigure, modify reporting schedules, set alarm thresholds and update firmware over-the-air. Communication to the RMU is queued in Bullhorn Web and is sent the next time the unit wakes up to transmit
  • Receive unlimited notifications via text message, email, and voice
  • Configure remotely from the office
  • Update firmware from the office
  • Set up current density alarms remotely
  • Eliminate remote site visits with equipment status notifications
  • Get on-the-go access via smartphone
  • Increase product reliability with immunity to lightning and other surges

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