SERVICE DESCRIPTION | Overhauser Magnetometer GSM-19 is a high-precision geophysical instrument used to measure the total intensity of the Earth’s magnetic field with high accuracy and long-term stability. This instrument is widely applied in geological exploration, mineral…
- Laboratorium Geodiversitas
- KKI Kawasan Geodiversitas (Sukendar Asikin)
Kawasan Konservasi Ilmiah Geodiversitas JL. Karangsambung Km.19, Karangsambung, Kebumen, Jawa Tengah 54353 - 081327771526
- labgeodiversitas@brin.go.id
Overhauser Magnetometer GSM-19 is a high-precision geophysical instrument used to measure the total intensity of the Earth’s magnetic field with high accuracy and long-term stability.
This instrument is widely applied in geological exploration, mineral surveys, archaeogeophysics, and subsurface structural mapping.
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Manufacturer / Type: GEM System / Overhauser Magnetometer GSM-19
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Sensitivity: 0.022 nT @ 1 Hz (0.015 nT PRO option)
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Resolution: 0.01 nT
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Absolute Accuracy: ±0.1 nT
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Measurement Range: 20,000 – 120,000 nT
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Gradient Tolerance: > 10,000 nT/m
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Sampling Intervals: 60+, 5, 3, 2, 1, 0.5, 0.2 seconds
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Operating Temperature: –40 °C to +50 °C
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Operating Modes: Manual, Base Station (1–60 s), Remote Control (optional via RS-232)
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I/O Interface: RS-232 (6-pin waterproof) and optional analog output, USB adapter available
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Storage Capacity: Mobile: 1.46M; Base Station: 5.37M; Gradiometer: 1.24M; Walking: 2.68M readings
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Dimensions: Console: 223 × 69 × 240 mm; Sensor: Cylinder ø 175 × 75 mm
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Weight: Console with belt: 2.1 kg; Sensor & staff: 1.0 kg
