MG-7D

Hand-Held Magnetometer / Gaussmeter

The MG-7D magnetometer/gaussmeter is a fully portable hand-held DC magnetic field measuring instrument, designed to measure a broad field range from 10 gamma (1/10,000 Gauss) to 150 kilogauss DC, with select probes.

The small, compact and lightweight unit has several features making it particularly useful in an industrial environment. These include a sealed touch keypad for maintenance free operation and a display panel that can be illuminated in low light conditions. Its low power consumption (0.04 watts) allows the unit to operate up to 100 hours continuously with a standard 9V alkaline battery.

Four full scale bipolar ranges of 20 Gauss, 200 Gauss, 2 kilogauss and 20 kilogauss with resolution of 0.05% provides DC field ratings from 10 milligauss to 19.99 kilogauss with 1X probes.

A wide selection of direct reading 10X precalibrated transverse and axial  Hall probes is available to expand field readings from 19.99 kilogauss to 150 kilogauss. Also available is a magnetometer probe, specifically designed for low level magnetic field measurements from 10 gamma (1/10,000 Gauss) to 1.5 Gauss. This probe becomes extremely useful for ambient field surveys, air freight package inspections, ferromagnetic metal detection, field mapping for NMR systems and similar applications.

This instrument can also be useful as a differential gaussmeter providing  field suppression up to 4 kilogauss with standard 1X probes and can be expanded up to 50kG suppression with select probes. By suppressing the ambient field and selecting the 20 Gauss full-scale range, incremental measurements can be made as low as 10 mGauss. Readings are displayed on a 3 digit 0.1% bipolar LCD meter.

Standard features include battery, padded vinyl carrying case and a 6-foot extension probe cable. An analog output jack is provided for remote sensing.

Features

  • Fully portable magnetometer/gaussmeter
  • Broad measuring range: 10 Gamma (1/10,000 Gauss) to 150 kGauss with select probes
  • Differential field measuring capability to 0.01 Gauss
  • Measures DC Fields 10 mGauss to 19.99 kGauss with 1X probes
  • Analog output 200 mV with overrange
  • Four full-scale ranges 20 Gauss to 20 kGauss
  • Touch pad controls
  • 3 digit 0.1% bipolar display
  • Wide selection of precalibrated probes + 0.1% to 1.5%
  • Battery operated: 100+ hours continuous operation with standard 9V alkaline battery
  • Low battery warning
  • Display light: For low ambient light conditions
  • Small, compact, lightweight: 10 ounces
  • Padded vinyl carrying case: Standard
  • One year warranty

Applications

  • Ultra low field measuring
  • Measure residual fields
  • Analyze magnetic circuits and components
  • Classify magnets
  • Measure absolute and differential fields
  • Plot field uniformity
  • Field mapping
  • Measure stray and leakage fields
  • Quality control and inspection

Accessories

Precalibrated Hall Probes: A wide selection of 1X and 10X precalibrated Hall probes are available to meet most applications.

Specifications

Range

20 Gauss full scale
200 Gauss full scale
2 kGauss full scale
20 kGauss full scale

Magnetometer probe 10 gamma to 1.5 Gauss
1X probes: 10 mGauss to 19.99 kGauss
10X probes: 100 mGauss to 150 kGauss

Resolution

0.05% all ranges

Analog
Output

200 mV at full scale of display;
-300 mV to +1 V

Display

3 digit 0.1% bipolar LCD

Instrument Accuracy (Less probe): % of reading 0.250%, 0.05%/C, 1 digit all ranges

Power: 9V alkaline battery

Power Consumption: 40 mW

Battery Life: Approximately 100 hours continuous operation with a fully charged battery. Automatic low battery warning appears on the display when battery voltage drops to 7.5 V.

Physical (Less probe):
Size: 1.6" H x 3.6" W x 5.75" L (4.2cm H x 9.1cm W x 14.6cm L)
Net weight: 8.7 oz (0.25 kg) Shipping weight: 1.25 lbs (0.57 kg)

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