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Sales Products :: Magnetic
G-882 Marine Magnetometer

G-882 Marine MagnetometerVery high resolution Caesium Vapour performance has been incorporated onto a low cost, small size, system for professional surveys in shallow water. High sensitivity at fast sample rates of total field measurements are maintained for all applications.

Features Include
  • Streamlined design for tow safety
  • Quick conversion from CG tow to nose tow, easy carry handles
  • Highest Sensitivity in the industry, 0.004nT/root Hz
  • Digital output, can be logged with MagLog™ software.
  • Low weight, can be man handled
  • New internal CM221 counter module, provides flash memory for storage of default parameter set by user.
  • New Echosounder/altimeter option
  • Zero phase lag on data
  • True amplitudes reported
  • Can be combined into gradient arrays, transverse, vertical or longitudinal
  • Data from multiple magnetometers can easily be concatenated into a single data stream

Technical Specifications

Measured Quantity Total Magnetic field in nT typical sensitivity 0.02nT at 0.1sec sample interval
Operating Principle Self Oscillating split beam Optically pumped Caesium Vapour cell (non-radioactive)
Heading Error < +/- 1nT over entire 360° range
Absolute Accuracy <3nT throughout range
Output RS232 @ 1200 to 19200 baud (other output rates on request)
Power Supply 24 to 32 VDC
Operating Temperature -35°C to + 50°C
Operating Range 20,000nT to 100,000nT
Pressure Rating 4000 psi (approx 2600 metres)
Operating Zones The earth's field vector should be at an angle of greater than 6° away from the sensor's equator and greater than 6° away from the sensor's long axis. Automatic hemisphere switching
Dimensions Instrument: body 7cm dia x 175 cm
Weight Instrument: 18kg
Cable: 3.85 kg/30m

DataSheets

G-882 Datasheet (PDF 135KB)

G-882 Transverse Gradiometer Datasheet (PDF 284KB)

MagLogLite Datasheet (PDF 123KB)

Magnetometer Test Box Datasheet (PDF 173KB)