Crystal Globe Geophysical R&S.

Model EREV-1+ - Proton Magnetometer


EREV-1+ is a high-precision proton magnetometer developed and produced by the Crystal Globe Geophysical Research & Services LLC.It is a proton magnetometer using the latest electronic technology, which is in pursuit of high measuring precision and excellent data repeatability. In addition, it is also featured by firmness, portability, and easy maintenance, and is more applicable to field exploration work in severe environment. Higher precision, higher sampling rate and lower storage cost are the extreme technologies that EREV-1pursues.EREV-1+ may be applied to: High-precision magnetic survey and prospection, magnetic basement and structure detection, earthquake and volcano precursors observation, engineering and environment exploration, coal field and hydrology exploration, pipes and underground explosives detection, archaeology and oil gas and other industries.

  • Highest precision and lowest noise level in the industry
  • High sampling rate
  • GPS based synchronization between stations to accurately remove diurnal variation
  • Unique sampling scheme with synchronization improve the data accuracy and data processing result
  • Ruggedized design with lighter weight for harsh operation environment
  • High capacity Lithium-Ion battery for longer operation
  • Ethernet port for longer term monitoring
  • Long range wireless for real-time communication between stations to remove diurnal variation
  • Continuous sampling gradient measurement mode shows the lowest level of noise in the market
  • Auto tuning in full range, not just in its adjacent range
  • Oven Controlled Crystal Oscillator (OCXO) and GPS based timing gives flexibility in all situations
  • High accuracy obtained from continuous auto calibration of the clock using GPS; there will be no measurement drift between stations forever
  • High capacity SD card with standard 32GB included
  • The two channels in gradient model are identical and can be swapped for repairing with flexibility; this makes gradient model more attractive in term of cost
  • Large LCD screen with easy operating menu

  • Accuracy: 0.1-0.2nT in general
  • Noise standard deviation: 0.1nT(≥3S)
  • Display resolution: 0.01nT
  • Field strength range: 10000nT-150000nT
  • Gradient Tolerance: 7000nT/m
  • Sampling interval: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 seconds
  • Sampling mode: single (unsynchronized and synchronized mode); continuous (synchronized mode)
  • GPS accuracy: 2.5m
  • Gradient synchronization precision: less than 1us
  • Data storage: 32GB SD card included
  • PC communication: USB
  • Battery: lithium battery, 12V/12Ah
  • Operating temperature: -25°C to +55°C
  • Weight: Sensor 0.8Kg; Console 1.9Kg (Batteries included)
  • Dimensions (mm): Console 240*110*125; Sensor 170L*80 diameter cylinder
  • Data processing software: EREV-Link, including diurnal variation processing, movement filtering processing, bad point delete, profile drawing

  • Console
  • Sensor
  • 4 aluminum poles, 50cm/ea
  • Bottom pole
  • Instrument strap
  • Battery charger
  • USB cable
  • Manual
  • Processing software: EREV-Link
  • Shipping case

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