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900 MHz Spread Spectrum Radio for
Cathodic Protection Scada Networks
FGRCP by FreeWave Technologies


A spread spectrum radio system for remote monitoring of cathodic
protection systems, with no recurring monthly charges.

 
Overview

Model FGRCP by FreeWave Technologies is a board-level spread spectrum radio with inputs and outputs for monitoring and reporting operational values for cathodic protection on pipelines, tanks, pipe-to-soil test stations, rectifier stations, pipeline pressure stations, pigging stations, and underground facilities subject to environmental corrosion. It takes telemetry automation of cathodic protection systems to the next level with no recurring monthly charges.

The FGRCP board level radio is available in a preassembled LineMarker enclosure with solar power system, antennas and conduit mounting bracket.

For more information, download our two-page FreeWave FGRCP data sheet in pdf format. Also, see the articles New Radios Automate Pipeline Integrity Monitoring for Corrosion Control, published in Pipeline and Gas Technology Magazine, and Frequency Hopping for Corrosion Protection, published in Water and Wastes Digest, May 2008.

Features
  • Multi-Purpose, All-in-One: Radio modem for monitoring rectifiers, pipe-to-soil test stations, pressure monitoring, and pigging operations with just one single device.
     
  • No Reoccurring Monthly Costs by owning your own communication network.
     
  • Enhanced Security: retains all data within company firewalls.
     
  • Easily Integrates: into existing radio networks leveraging existing investments in supervisory control and data acquisition systems using open extended Modbus network addressing.
     
  • Frequency Hopping Spread Spectrum: invented for Military use in WWII for Allied Forces.
     
  • High Speed Communications: 115.2 Kbps true throughput.
     
  • Long Range: up to 60 miles line of sight, ability to extend range through repeaters.
     
  • Error Free Communications: 32 bit CRC with automatic retransmission.
     
  • Industrial Grade Specifications: Every FGRCP is 100% factory tested for full range performance and temperature cycle tested from -40°C to +75°C.
     
  • Repeater Capabilities: Each FGRCP can perform as a Slave Radio, a Repeater and simultaneous Slave/Repeater.
     
  • Wide Supply Voltage Range: 10 to 30V DC.
     
  • Ultra Low Power Consumption: Current draw is less than 6 mA, 12V DC in sleep mode, and less than 86 mA in receiving mode. In sleep mode, radio will awaken, synchronize and be ready to transmit data is less than 150 µsec.
     
  • Separate Diagnostics Serial Port: Allows real time simultaneous local diagnostics and setup without tying up the FGRCP main communication port.
     
  • Separate RS232 Serial Port: Allows the FGRCP radio to simultaneously communicate to the I/O termination points and to auxiliary PLC’s, EFM’s, RTU’s, etc.
     
  • Enhanced Diagnostics: including signal level in dBm and transmit current.
     
  • RS232/RS485/RS422 Interface available with user programmability.
     
  • Noise Immunity: Robust communication performance in noisy, congested areas.
     
  • Secure: Proprietary spread spectrum technology and user programmable security features prevent detection or unauthorized access.
     
  • No Obsolescence: 100% backwards compatibility with all FreeWave 900 MHz products.

Benefits of Spread Spectrum Radio

Energy and Pipeline Companies can meet the new Federal regulations, lower their operating costs and enhance existing cathodic protection systems through the use of two tools, scada and telemetry.

1. SCADA.  Many companies own and operate their own supervisory control and data acquisition systems (SCADA), thus can leverage this existing capital investment in scada by extending the data communication network further to cover cathodic protection equipment as well. A SCADA system is the backbone to a data communication network that wirelessly communicates to remote field devices like compressor sites, pump stations, wellhead controls, LACT units, rectifiers, pipe-to-soil test stations, etc. Extending the existing network to manage cathodic protection increases the robustness of the existing system as well. For companies not currently operating a SCADA system of their own, small host systems are implemented with a minimal investment by local integration companies.

2. Telemetry. With a SCADA system in place, remote cathodic protection field equipment is automated by installing simple and cost effective, toll-free, wireless radios on rectifiers, test stations, pigging stations, and pressure test stations. Thus extending the existing SCADA network and automating the data collection function of cathodic protection monitoring.

Model FGRCP by FreeWave Technologies offers a multi-purpose, all-in-one, cathodic protection, wireless, data communication radio for monitoring & reporting:

1.  Impressed current rectifier output voltage and current
2.  Rectifier inlet power status
3.  Rectifier interruption (automated or manually operated)
4.  Pipe-to-soil voltage potential
5.  Galvanic anode potential
6.  Pipeline pressure, temperature, pigging operations
7.  Communication integrity
8.  Battery voltage

Other features:

  • Each FGRCP monitored point is directly polled, monitored, alarmed and trended through SCADA for near real-time operational data. The FGRCP can automatically alarm back to Operations through report by exception.
     
  • Every FreeWave Cathodic Protection Monitoring Radio acts as an infinite data communication repeater site extending the existing networks ability to reach further into remote areas of operations.
     
  • Many companies already own other fine FreeWave products and the new FGRCP cathodic protection monitoring radios easily integrate with existing radios.
     
  • Demand Poll real-time updates from remote locations with no windshield time, increased safety and no polling costs.
     
  • All functionality for one low front-end purchase price with no product obsolescence or monthly reoccurring costs or fees.

FGRCP Radio Specifications
 
Rectifier Output Monitoring Voltage 0-100V dc, Current 0-20A.
Rectifier Status Monitoring Inlet power status monitoring, AC or DC.
Rectifier Interruption 12V dc, DO relay output, user selectable.
Pipe-to-Soil Monitoring -2 to +3V dc
Auxiliary Analog Input 1 to 5V dc or 4-20 mA
Integrated Solar Charging 12V dc charging circuit and controller
Frequency Range 902 to 928 MHz
Output Power 100 mW to 1 Watt
Range, Line of Sight: 60 miles
Modulation Spread spectrum GDSK
Occupied Bandwidth 230 kHz
Spreading Method Frequency hopping
Hopping Pattern 15 per band, 105 total, user-selectable.
Hopping Channels 50 to 112, user-selectable
Hopping Bands 7, user-selectable
Sensitivity -108 dBm for BER 1x10-6
-110 dBm for BER 1x10-4
Selectivity 20 dB at fc ± 460 kHz (2nd IF)
System Gain 140 dB
Error Detection 32 bit CRC, Retransmit on error
Data Encryption Substitution, Dynamic Key
Data Interface RS232, RS485, RS422 or TTL
Data Connector 10-pin, locking ramp, header, data & power connector.
Diagnostics Connector 20-pin header connector
Antenna Connector Board-Level Radio: SMA, threaded.
LineMarker Test Station: Antenna included.
Power Requirements:
     Transmit
     Receive
     Idle
     Sleep
At 12V dc:
     500 mA
     86 mA
     21 mA
     8 mA
At 30V dc:
     200 mA
     12 mA
     12 mA
     3 mA
Solar Autonomy LineMarker Test Station: fully loaded I/O, 18 days with 1.25 safety factor
Electrical Classification Class 1, Division 2 (pending)
Operating Temperature Range: -40°C to +75°C, fully tested
Humidity 0-95% non-condensing
Dimensions Board-Level Radio: 5” x 3.5” x 2” (H x W x D).
LineMarker Test Station: 30” x 4” x 4” (H x W x D).
Weight Board-Level Radio: 100 grams
LineMarker Test Station: 12 pounds
Mounting Board-Level Radio: Standoffs available or FGRCP bracket mount.
LineMarker Test Station: 3" conduit riser pipe or 8x8 surface mount, flat adapter bracket.

 

Cathodic Protection Products & Materials

 Impressed Anodes
 Sacrificial Anodes
 Cable & Splicing
 DC Supplies & Rectifiers
 Remote Monitoring
 Polarization Cells
 Overvoltage Protection
 Junction & Bond Boxes
 Test Stations & Markers
 Reference Electrodes
 Test Instruments
 Insulating Materials
 Pipe Coatings & Tape
 Miscellaneous Products

  

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 Insulators & Seals
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