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 GSM-8
Proton Magnetometer
Features
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1 gamma resolution and accuracy, 0.5 gamma optional.
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Worldwide range.
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High gradient tolerance
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Excellent visibility of the display in any ambient
light.
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Display stays active between readings.
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External trigger and digital output standard, analog
output optional.
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Rugged, all-metal construction.
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No-lock indication.
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Polarize indication.
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Shoulder/belt-strap for easy carrying.
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Sensor backpack for hands-free operation optional.
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Nonmagnetic battery pack optional.
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Custom modifications available.
General
The GSM-8 proton magnetometer is a lightweight one gamma
proton precession magnetometer designed primarily for hand-held and base station
operations, but adaptable for other earth magnetic field measurements like airborne/marine
surveys, pipe and cable detection, tracking, etc.
The instrument's power consumption, size and weight have been
minimized to make it one of the world's lightest and most compact one gamma proton
precession magnetometers.
Rugged, wide temperature range liquid crystal display allows
for easy reading in bright sunlight. The all metal construction ensures long life even in
the roughest of field condihons.
Flexible design of electronics enables this magnetometer to
have a wide selection of cycling speeds and other necessary features for almost universal
earth field measurements. The complete self-test feature ensures reliable operation and
early warning of instrument malfunction due to interferences such as excessive field
gradient, electromagnetic radiation, or internal breakdown.
Specifications
Operating Modes
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Manual Push Button, new reading every 1.86 seconds, display
active between readings
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Cycling, push button initiated, 1.85 second period
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Self-test cycle, push button controlled, 7 second period
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Output: Visual: 5 digit lcm high Liquid Crystal Display,
visible in any ambient light Digital: Multiplied precession frequency and gating pulse
Analog: 0-99 gamma (optional)
Power Source
Dimensions
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Console: 15x 8x 15cm
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Sensor: 14 x 7cm diameter
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Staff: 175cm extended, 53cm collapsed or sectional 45cm each
section
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Resolution: 1 gamma or 0.5 gamma optional
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Accuracy: + 1 gamma over operating range
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Range: 20,000 - 100,000 gamma in 23 overlapping steps
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Gradient Tolerance Up to 5000 gama/meter
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External Trigger: Permits externally triggered cycling with
periods longer than
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1.85 seconds (cycling faster than once per second optional)
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Power Requirements: 10-18V DC 8Ws per reading
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Battery Charger Input: 120/220V
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50/60Hz, Output 75mA DC constant current
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Operating Temperature: -40 to +55 C°
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Weight: 2.7kg complete, 2.3kg in backpack mode
Standard Components
GSM-8 magnetometer console, batteries, carrying harness,
sensor with cable, staff (collapsible or sectional), and instruction manual.
Ordering Information
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Description
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Order Number
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GSM-8 Proton magnetometer |
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350-170-0000 |
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GSM-8BA Airbome magnetometer |
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350-170-0003 |
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GSM-8M Marine magnetometer |
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350-170-0012 |
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Weak Link 8 Bouy (8M) |
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350-170-0015 |
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