MOBILTEX CorTalk RMU3 Remote Monitoring and GPS Interruption for Rectifiers

Quickly and Affordably Add Two-way Communication for Accurate, Remotely Controlled Configuration and GPS-Synchronized Interruption of Rectifiers
  • Description

    Gain deep insight into the performance of your CP system with continuous remote monitoring capabilities. The RMU3 is a small, two-piece device that can be easily installed into a rectifier cabinet and features a full range of configurable functions to collect critical measurement data.

    Two-way information can be transmitted via satellite or cellular network as frequently as every few hours to provide a highly detailed view of the CP system and identify short-lived events that may impact CP performance.

    When combined with CorView web analytics platform, pipeline operators can use a network of RMU3 devices to instantly evaluate overall CP performance, identify areas of concern and remotely manage interruption activities.


    Key Features

    • Compact, weatherproof devices are designed to be quickly and easily installed in existing rectifier cabinets or test stations
    • Available with satellite or cellular communications for maximum service coverage with economical fixed rate operational communication costs
    • No connection to ground for superior lightning and surge protection
    • Highly accurate and reliable data collection and GPS-synchronized interruption
    • High reliability, long operational life design, low capital equipment cost
    • Operation in -40 to +60°C (-40 to +140°F) temperatures
    • IP67 sealed enclosure and cabling for harsh environments
    • Fast, simple configuration via PC, iOS or Android app


    LEARN MORE AT MOBLITEX.COM/RMU3

  • Features

    • Simple and very quick to install (typically under 1 hour)
    • High reliability, long operational life design
    • Low capital equipment cost
    • Economical fixed rate operational communication costs
    • Satellite or LTE cellular models for maximum service coverage
    • Four galvanically isolated analog input channels
    • Each analog channels is bi-polar with 150mV (50 and 100mV current shunts), 22V, 150V, and 4-20mA measurement ranges
    • Each analog channel can be configured to read DC or True RMS AC (i.e. induced AC measurements)
    • DC analog channels include >65bD of 50/60Hz AC rejection
    • All analog channels are high impedance and allow direct connection to reference half-cells
    • Analog channel measurement accuracy of ±0.5% DC and ±1% ACFS over -40 to +70°C (-40 to +158°F)
    • Programmable low and high alarm window capability on each analog channel with report by exception facilities
    • Scheduled reporting of data based on customer selected plan (every 6 hours, daily, every 2 days, or weekly readings)
    • Each channel has independent very high lightning protection
    • No connection to ground for maximum lightning immunity
    • Internal temperature measurement and reporting
    • Internal wide temperature range rechargeable battery system provides 16 hours (RMU3-G) or 10 hours (RMU3-S) of backup
    • GPS antenna / GPS receiver and high gain LTE or satellite antenna integral to transceiver
    • Compact two piece mechanical design
    • Termination block assembly is 135mm x 38mm x 38mm (5.3” x 1.5” x 1.5”) and typically mounts inside the rectifier
    • Antenna transceiver assembly is 134mm x 77mm x 53mm (5.3” x 3.0” x 2.1”) and mounts externally with a view of the sky
    • Components connect together with a single polyurethane cable with small (0.5” diameter) molded waterproof connectors
    • Antenna transceiver includes a bottom side ½” threaded receptacle that mates directly to electrical conduit fittings
    • Easy configuration through a USB PC interface
    • Rectifier GPS position information transmitted to corView host
    • IP67 sealed enclosure and cabling for harsh environments
    • Operation in -40 to +70°C (-40 to +158°F) temperatures
    • Integral voltage sensor for safe and lightning immune detection of supply voltage presence
    • Magnetic door switch / tamper sensor with exception report
    • Optional: 8 year internal measurement recorder locally stores all readings sampled every 6 hours
  • Specifications

    RMU3-B (Base Unit):

    Environmental:
    Operating Temperature: -40 to +70°C (-40 to +158°F)
    Storage Temperature: -45 to +80°C (-49 to +176°F)
    Humidity: 0 to 100% RH non-condensing
    Pollution Degree: 1
    Maximum Altitude: 5000 meters above sea level
    Physical:
    Size: 135mm x 38mm x 38mm (5.3” x 1.5” x 1.5”)
    Weight: 200 grams (7 oz)
    Enclosure: UV stable, wide temperature polycarbonate
    Mounting: Mounted inside a rectifier
    Power:
    PWR IN Operating voltage range: 9 to 18 volts AC (50/60Hz) or 9 to 22 volts DC
    Power (less relay drive): 5 VA maximum (Including RMU3-G)
    Power (with relay drive): 15 VA maximum (Including RMU3-G)
    Power Source: LPS or Class 2 CSA/UL approved (CSA 60950-1 or UL 60650-1)
    Measurement Inputs:
    Analog Measurement Type: Category 2 (as per CSA C22.2 – 61010)
    Analog Ranges (DC & AC): +/- 150mVDC only
    +/- 22VDC, 16V true RMS 
    +/-150VDC, 105V true RMS (+/- 119VDC for TEG sources) 
    4-20mA (with external precision shunt resistor)
    AC Rejection on DC Readings: >65dB @ 50/60Hz
    External Analog Channels : 4 galvanically isolated, high impedance
    Lightning Immunity: Survives multiple 20KV 10mS surges
    DC Measurement Accuracy: +/- 0.5% of full-scale
    AC Measurement Accuracy: +/- 1.0% of full-scale
    ADC Resolution: 16 bits
    Temp. Measurement Accuracy: +/-4 C (+/-7 F)
    Door / Tamper Switch: Activated by external magnet (included with device kit)
    Interruption Output:
    Relay drive voltage: 12 volts DC (Pwr In – 1VDC)
    Relay drive current: 0.75 Amps maximum
    Relay contact close dwell: 0-100 ms
    Relay contact open dwell: 0-100 ms
    Relay contact type: NO or NC
    Relay type: Solid state or mechanical

     

     

    RMU3-G GPS & LTE Cellular (Antenna Unit)

    Environmental:
    Operating temperature: -40 to +70°C (-40 to +158°F)
    Storage temperature: -45 to +80°C (-49 to +176°F)
    Humidity: 0 to 100% RH non-condensing
    Pollution Degree: 2
    Mounting: Type 3 Enclosure - Suitable for outdoor use
    Power:
    Operating voltage range: 8.5VDC nominal, supplied from RMU3-B
    Power: 4W maximum
    Physical:
    Size: 53mm x 77mm x 134mm (2.1” x 3.0” x 5.3”)
    Weight: 550 grams (1.2lb)
    Enclosure: Watertight, UV stable, wide temperature polycarbonate
    Backup Battery: Internal 4V/2.8AHr extended temperature sealed lead acid
    Communications:
    Radio: LTE Cellular
    Interruption Timing:
    GPS Receiver: Internal 20 channel
    GPS Antenna: Internal patch
    Timing accuracy: +/-0.5 ms (AC line sync disabled) 
    +8.8/-0.5 ms (AC line sync enabled)
    Off Time: 100 – 60,000ms in 1ms steps
    Cycle Time: 200 – 60,000ms in 1ms steps
    Processing Core:
    CPU: 72MHz ARM Cortex-M3 Core
    Memory: 1MB Flash, 64KB RAM, 8KB EEPROM

     

     

    RMU3-S GPS & Satellite (Antenna Unit)

    Environmental:
    Operating Temperature: -40 to +70°C (-40 to +158°F)
    Storage Temperature: -45 to +80°C (-49 to +176°F)
    Humidity: 0 to 100% RH non-condensing
    Pollution Degree: 2
    Mounting: Type 3 Enclosure - Suitable for outdoor use
    Power:
    Operating voltage range: 8.5VDC nominal, supplied from RMU3-B
    Power: 4W maximum
    Physical:
    Size: 53mm x 77mm x 134mm (2.1” x 3.0” x 5.3”)
    Weight: 550 grams (1.2lb)
    Enclosure: Watertight, UV stable, wide temperature polycarbonate
    Backup Battery: Internal 4V/2.8AHr extended temperature sealed lead acid
    Communications:
    Radio: Iridium SBD satellite
    Interruption Timing:
    GPS Receiver: Internal 20 channel
    GPS Antenna: Internal patch
    Timing accuracy: +/-0.5 ms (AC line sync disabled)
    +8.8/-0.5 ms (AC line sync enabled)
    Off Time: 100 – 60,000ms in 1ms steps
    Cycle Time: 200 – 60,000ms in 1ms steps
    Processing Core:
    CPU: 72MHz ARM Cortex-M3 Core
    Memory: 1MB Flash, 64KB RAM, 8KB EEPROM
  • Annotated Photos

    RMU3

    The number in the yellow circle corresponds to the numbered explanation on the following list:

    1. Small weather proof antenna transceiver unit mounts externally with a view of the sky
    2. Internal high gain GPS antenna & receiver and high gain GSM or satellite antenna & transceiver
    3. Internal rechargeable battery backup system
    4. Durable wide temperature cable with molded miniature waterproof connectors connects the two devices together
    5. Magnetic door/tamper switch
    6. Test switch and device status indicator
    7. Terminal block assembly mounts inside of the rectifier
    8. Exceptional lightning immunity provides long-term reliability
    9. Four galvanically isolated analog input channels
    10. Integral mounting system directly mates with industry standard ½" NPT electrical fittings
    11. CSA USA & Canada regulatory safety approval

      Bottom side of the RMU3 transceiver module