LEMI-018

Product type:
Fluxgate magnetometer

Product description:
High resolution and precision
Low noise
Low temperature offset
Convenience of installation and service
Low power consumption
3 modes of autonomous operation
Automated offset compensation
4-lines display
2 GB internal memory (CF FAT16)
Internal real time clock
Satellite synchronization
S – 232 (RS-422) output
3 years’ operational guarantee

Application Description:
LEMI-018 vector magnetometer for the precise measurement of Earth’s magnetic field and its variations at laboratory and land conditions as well as in geomagnetic observatory is produced on the base of flux-gate sensor, all three components of which are implemented in the same body. It consists of two units – sensor unit with adjustable or suspended support and electronic unit both connected by long cable. The electronic unit allows automated operation – acquisition, processing and storage of data about magnetic field and its variations and their transmission at request to the external user via RS232 interface or by FLASH card replacing. Built-in GPS receiver provides satellite synchronization of the internal clock and the coordinates of magnetometer location. It allows to organize the synchronous operation of a set of the magnetometers installed at the studied area. The considerable volume of internal non-volatile memory for data recording and small power consumption permits to use the magnetometer for long-term autonomous measurements in land conditions. Other options, e.g., tilt compensated sensor version (on the figure), for observatory and laboratory use, hermetic version etc. exist too.

Highlights:
Low Power Consumption
Low noise

Product image:

Specifications:

  • Measuring ranges of total magnetic field at the display | (±68 000 nT)
  • Resolution along each component at the display, digital output | (0.01 nT)
  • Measured range at analog output without additional compensation | (±1000nT)
  • Transformation factor of analog output | (2.4 mV/nT)
  • Noise level at (0.03 – 0.3) Hz frequency band | (< 15 pT rms)
  • Temperature drift | (<0.2 nT/°C)
  • Components orthogonality error | (<
  • Automated offset compensation band along each component | (±68 000 nT)
  • Time of samples averaging by PC software | (1…60 s)
  • Volume of internal memory | (2 GB Flash card )
  • Operating temperature range | (-20 to +60° C)
  • Power supply, battery | (12+6 ,-3 V)
  • Power consumption | (<0.8 W)
  • Weight: sensor with support | (1.2 kg)
  • Weight: sensor with electronic unit | (1.8 kg)
  • Length of connecting cable | (10 m)
  • Length of GPS antenna cable | (3 m)

Additional Information:

LEMI-018_Datasheet.pdf