HARDWARE / PRODUCTAdded 23 Aug 2026

Mag639

Bartington Instruments
Mag639

This wide bandwidth fluxgate magnetometer offers measurements from DC to 12kHz of field strengths up to ±100μT, featuring a non-conductive cylindrical enclosure to prevent eddy currents.

Technical specifications

Bandwidth
DC to 12 kHz
Noise level
<20pTrms/√Hz at 1 Hz
Measuring range
±100µT
Environmental sealing
IP65
Offset error
<50nT
Scaling error
±0.5%
Orthogonality error
<0.5°
Frequency response
DC-5 kHz (±5%)
Hysteresis
<5nT at 100μT
Operating temperature
-20°C to 70°C
Dimensions
28.1 x 218 mm
Mass
300 g
Supply voltage
± 15 V to ± 17 V
Interface
±10 V (unbalanced, single ended ref. 0 V)

About

The Mag639 is a wide bandwidth three-axis fluxgate magnetometer designed for precise magnetic field measurements. It is capable of measuring field strengths up to ±100μT across a frequency range from DC to 12kHz. The device incorporates a non-conductive cylindrical enclosure, which effectively prevents the creation of eddy currents, ensuring accurate readings. A 2.5m shielded cable is integrated to position the sensor connector away from the fluxgates, further enhancing measurement integrity. The magnetometer features three concurrent fluxgate elements, which are crucial for minimising the impact of high magnetic field gradients. Key features include a wide bandwidth from DC to 12kHz, a low noise level of <20pTrms/√Hz at 1Hz, and a ±100µT measuring range. The concurrent axes ensure a single point of intersection for measurements, and the unit is environmentally sealed to IP65 for robust performance in various conditions. Applications for the Mag639 include Time-domain electromagnetics (TDEM), Magnetotellurics (MT), EMC Interferences measurement, and Unexploded ordnance (UXO) detection.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.bartington.com ↗

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