• Pharos System

    Pharos is an intrinsically safe, modular, low-power and efficient wireless data-acquisition (DAQ) system that monitors many applications, and is especially suited to those difficult-to-instrument regions and tools.

    Description

    Effortlessly monitor your well site with one robust, low maintenance, and extensible wireless system. Pharos is an intrinsically safe, modular, low-power and efficient wireless data-acquisition (DAQ) system that monitors many applications, and is especially suited to those difficult-to-instrument regions and tools. Patent-pending technology optimizes battery life, with every bit of capacity going toward meaningful work and automatically entering sleep mode when not in use. The modular system approach separates out the power source, radio transceivers, and sensor bus through the use of connectorized, quick-disconnect cabling.

    Features/Benefits

    Features

    • Wireless data acquisition
    • Low power requirements
    • Long battery life
    • Quick start up in all temperatures
    • Reliable long-range signal
    • Easy to incorporate new signals
    • Intrinsically safe
    • Modular
    • Quick-disconnect cabling

    Applications

    • Encoder position
    • Inclination angle
    • Proximity sensing
    • Vibration monitoring
    • Shock monitoring
    • Torque/bending /hookload sensing
    • Load-pin monitoring
    • Pressure sensing

    Specifications

    Technical Specifications
    DEVICEMINNOMINALMAXUNITSDESCRIPTION
    BATTERY PACK---deg CIntrinsically Safe Battery Pack, IP 67, -40 to +60 deg
    Voltage Output-3.63.9VVoltage output of battery pack
    Current Output320-625mACurrent trip value of active circuit. Min trip occurs @ 3.9V, max occurs @ 2V
    Power Output1.25-1.4WPower trip value of active circuit. Min trip occurs @ 2V, max occurs at 3V
    Capacity--19A-hrBattery Pack Capacity. Max occurs @ 8 mA load, 23 degrees C.
    Consult NOV engineering for battery life calculations
    RADIO NODE---deg CTransceiver/Sensor Combination, IP67, -40 to +60
    Voltage Input23.65.5VRequired input voltage to Radio Node
    Voltage Output4.8255.13VVoltage output of TPS61222 on pin 5, used to power sensor BUS
    Current Output--100mACurrent output of TPS61222 on pin 5, used to power sensor BUS
    ADXL362 Range+/- 2-+/- 8gRange of ADXL362 digital MEMs 3-axis accelerometer, 12-bit resolution
    ADXL362 Data Rate12.5-400HzSample and data output rate of ADXL362
    ADXL375 Range-+/- 200-gRange of ADXL375 digital MEMs 3-axis accelerometer, 13-bit resolution
    ADXL375 Data Rate0.1-3200HzSample and data output rate of ADXL375
    FXAS21002C Range+/- 250-+/- 2000deg/sRange of FXAS2100C digital MEMs 3-axis gyroscope, 16-bit resolution
    Temperature Sensor-40-125-Range of temperature sensing
    Transmit Frequency2.405-2.48GHzTransmission frequencies of MRF24J40MA/D, 802.15.4, 16 channels, 5MHz BW
    Transmit Power-0-dBmTransmission power of MRF24J40MA
     -19-dBmTransmission power of MRF24J40MD
    ENCODER----Low Power, Absolute, Multi-Turn Encoder
    Voltage Input3.356.5VRequired input voltage to encoder
    Current Input-10-mATypical supply current
    Resolution--1024pprEncoder angular resolution, 10-bit
    Turns Rollover--65,536revsTotal turns before rollover
    POWER &
    COMMUNICATIONS J-BOX
    -----001 version contains power supply and GM International D1061 Barrier
    -002 version contains only power barrier
    Voltage Input202440 (-001)
    30 (-002)
    VInput Voltage to Power & Communications J-Box
    Voltage Output4.9555.491VOutput voltage of power barrier
    Current Input-50-mATypical supply current
    Current Output-342-mATrip current of power barrier
    Power Output-1.2-WTrip power of power barrier

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