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Welding Inspection
Instruments & Accessories

GPS Pipeline Current Mapper

Models:    EPT/GCM-4000
The GPS Pipeline Current Mapper “GPCM” measures the distribution of an impressed test current on a Pipeline network. By measuring the pipeline Magnetic field, it’s able to measure pipeline current flow. It is an accurate method of mapping and evaluating the loss of cathodic protection current. The GPCM measures the current magnitude and direction without any connection. Interrupter creates the easiest method to change the CP potential to a transmitter signal. This is a Pipeline interruption locator and locates the pipeline by using the LCD Bar graph. GPCM Data logger flash memory is 2000 Mb. USB interface Port allows data to be downloaded. EP-TECH computer software has the ability to graph and present saved data verses number of readings or distance. GPS Coordinates automatically will be saved for all reading. It is an easy way to map the pipeline by using ‘GPS option’.
  • Input voltage Ni MH 7.2 volt/ 4000MA, Large 240 x 64 LCD Display Graphics
  • Max Current with GPS 100 MA, Memory Capacity : 2GB (2000 MB)
  • Ability survey Tag information, Internal clock: separate Lithium Battery
  • Keypad : 7 x 4 tactile Switch keypad, AC Active filter -73db for 50/60 HZ
  • Differential input with two separate channels for survey, Range of measurement: 5000 MA
  • EP-Tech software, ability to export data to Excel Spreadsheet, Graph ability with GPCM “EP-Tech” Software
  • Magnetometer for Magnetic field measurements, LCD Bar graph for locating the pipeline and Current Direction
  • Universal charger current, constant current 400 MA
  • Graph Zooming ability with Graphic features
  • Direct Current Gradient “Frame Method” for fault location
  • Graph saved data information option in the field
  • Size of the unit: 182x 182 x 63 mm Aluminum box
Caltech Engineering Services

D-104, Twin Arcade, Military Road, Marol, Andheri (East), Mumbai- 400 059 India
Tel: (+91-22) 29204050 / 29201454 Fax: (+91-22) 29250932 Email: