With the new FEREX 4.034 detection of geomagnetic anomalies is as simple and precise as ever. The significantly improved signal-to-noise ratio, comprehensive application software and reduced weight facilitate detection. Up to 4 probes can be used on a probe holder. Linking a GPS system the exploration area and the tracks can be easily defined. The included navigation system provides valuable information on the current position, deviation from the ideal track as well as the data quality already during data acquisition. Results are displayed directly on the color screen, providing initial analysis.

Product details

  • Differential (gradiometric) fluxgate magnetometer including data recorder
  • 4 channels with high sampling rate
  • Serial interface to connect alternative sensors
  • GPS interface
  • Light weight due to compact design
  • Low power consumption
  • Robust, field proven and maintenance friendly
  • Comprehensive scope of accessories such as multi probe holder, wheel kit or odometer
  • Data post processing software DATA2LINE

Technical specification

FEREX 4.034
Weight 4.1 kg complete detector incl. batteries
12.1 kg complete detector set in case
Dimensions FEREX - 1270 x 145 x 850 mm (H xWx D)
Case - 989 x415 x 157 mm (H xWx D)
Display 3.5“ LCD with adjustable backlight, sunlight readable
Memory 32 GB SD card
Interfaces 4 x analog fluxgate gradiometer, 1 x serial
Temperatur range Operation: -37 °C to +71 °C; -99 °F to +160 °F (ambient temperature) Stock: -57 °C to +71 °C; -135 °F to +160 °F
Power supply 4 x 1.5 V alkaline batteries (LR20) or 4x 1.2 V NiMH (HR20)
Battery size IEC LR20/HR20-ANSI „D“
Battery lifetime 1 probe, continuous operation > 8 hrs
Measuring ranges in FEREX mode 8 linear ranges: ±3 nT to 10,000 nT and 1 logarithmic range
Sampling rate 900 Hz each channel
Resolution 24 bit ADC
Protection grade IP 65
Probe MG-10-550
Type Fluxgate gradiometer
Base distance 550 mm
Application area ±62,500 nT
Measuring range ±10,000 nT gradient, ±62,500 nT absolute
Reference point 97.5 mm from end of prbee rd,, 4 mm outsiee symmetry axis
Declination ±3 nT
Noise <40 pWHz@1 Hz
Cut-off frequency 230 Hz
Temperature drift <1 nT/K
Uncertainty of measurement <2 % ref. =1100)00 nT
Linearity <1 nT referred to maximum measuring range
Protection grade IP 68, 100 m with optional sealing plug
External dimensions Diameter 39.4 mm (with protective cap), probe length 750 mm, base distance 550 mm
Certifications
MIL-Standards certifications MIL-STD 810G Method 514.6, Procedure I, Random Vibration MIL-STD 810G Method 516.6, Procedure I, Mechanical Shock MIL-STD 810G Method 516.6, Procedure IV, Transit Drop Test MIL-STD 810G Method 501.5, Procedure I, High Temperature MIL-STD 810G Method 502.5, Procedure I, Low Temperature MIL-STD 810G Method 503.5, Procedure I-C, Temperatur Shock MIL-STD 810G Method 506.5, Procedure I, Blowing Rain AEODP-7 Edition B, Annex A-1
NATO Stock Number (NSN) 6665-12-410-0276