GS-One LF | Geospace Technologies

GS-One LF Geophone

PRODUCT DETAILS

The GS-ONE LF 4.5Hz & 5Hz geophones’ improved sensitivity makes these single-element vibration monitoring systems’ designs compatible with the latest 24-bit data acquisition systems’ capabilities to record the extended dynamic range and bandwidth.

FEATURES

Moving mass: 25.2g (0.889 ounces)
Maximum coil excursion p-p: Less than 3mm (0.120 inches)
Diameter is 30.5 mm (1.2 inches)
Height less terminals is 40.7 mm (1.6 inches)
Weight is 131.00g (4.60 ounces)
Operation and Storage Temperature Range -40 to 80°C
Operation and Storage Temperature Range -40 to 176°F

Vertical MECHANICAL SPECIFICATIONS

Moving mass	25.2 g	0.889 oz
Maximum coil excursion p-p	3.05 mm	0.120 in.
Diameter	30.5 mm	1.2 in.
Height	40.6 mm	1.6 in.
Weight	131 g	4.62 oz
Operating and storage temperature range	–40°C to +80°C	–40°F to +176°F

ELECTRICAL SPECIFICATIONS

All parameters are specified at 25°C in the vertical position unless otherwise stated.
Open-circuit sensitivity	2.55 V/in/s (100.4 V/m/s) +10%, –10%
Frequency	4.5 Hz ±0.75 Hz
Spurious frequency	120 Hz typical
Distortion at vertical	0.25% Typical measured at 12 Hz with 0.7 in/s p-p
Open-circuit damping	0.42 ±0.10
Coil resistance	2450 Ω ±5%
Sensitivity with 20 kΩ load	2.27 V/in/s (89.4 V/m/s) typical
Damping with 20 kΩ load	0.735 typical
Tilt angle when coil hits end stop	24° from vertical Typical

Horizontal MECHANICAL SPECIFICATIONS

Moving mass	25.2 g	0.889 oz
Maximum coil excursion p-p	3.05 mm	0.120 in.
Diameter	30.5 mm	1.2 in.
Height	40.6 mm	1.6 in.
Weight	131 g	4.62 oz
Operating and storage temperature range	–40°C to +80°C	–40°F to +176°F

ELECTRICAL SPECIFICATIONS

All parameters are specified at 25°C in the horizontal position unless otherwise stated.
Open-circuit sensitivity	2.55 V/in/s (100.4 V/m/s) +10%, –10%
Frequency	4.5 Hz ±0.75 Hz
Spurious frequency	120 Hz typical
Distortion at horizontal	0.25% Typical measured at 12 Hz with 0.7 in/s p-p
Open-circuit damping	0.42 ± 0.10
Coil resistance	2450 Ω ±5%
Sensitivity with 20 kΩ load	2.27 V/in/s (89.4 V/m/s) typical
Damping with 20 kΩ load	0.735 typical
Tilt angle when coil hits end stop	5° from horizontal

Specifications (4.5 Hz)

Vertical MECHANICAL SPECIFICATIONS

Moving mass	25.2 g	0.889 oz
Maximum coil excursion p-p	3.05 mm	0.120 in.
Diameter	30.5 mm	1.2 in.
Height	40.6 mm	1.6 in.
Weight	131 g	4.62 oz
Operating and storage temperature range	–40°C to +80°C	–40°F to +176°F

ELECTRICAL SPECIFICATIONS

All parameters are specified at 25°C in the vertical position unless otherwise
stated.

Open-circuit sensitivity	2.55 V/in/s (100.4 V/m/s) +10%, –10%
Frequency	4.5 Hz ±0.75 Hz
Spurious frequency	120 Hz typical
Distortion at vertical	0.25% typical measured at 12 Hz with 0.7 in/s p-p
Open-circuit damping	0.42 ±0.10
Sensitivity with 20 kΩ load	2.27 V/in/s (89.4 V/m/s) typical
Damping with 20 kΩ load	0.735 typical
Tilt angle when coil hits end stop	24° from vertical typical

Horizontal MECHANICAL SPECIFICATIONS

Moving Mass	25.2 g	0.889 oz
Maximum coil excursion p-p	3.05 mm	0.120 in.
Diameter	30.5 mm	1.2 in.
Height	40.6 mm	1.6 in.
Weight	131 g	4.62 oz
Operating and Storage Temperature Range	–40°C to +80°C	–40°F to +176°F

ELECTRICAL SPECIFICATIONS

All parameters are specified at 25°C in the horizontal position unless
otherwise stated.

Open-circuit sensitivity	2.55 V/in/s (100.4 V/m/s) +10%, –10%
Frequency	4.5 Hz ±0.75 Hz
Spurious frequency	120 Hz typical
Distortion at horizontal	0.25% typicalmeasured at 12 Hz with 0.7 in/s p-p
Open-circuit damping	0.42 ±0.10
Coil resistance	2450 Ω ±5%
Sensitivity with 20 kΩ load	2.27 V/in/s (89.4 V/m/s) typical
Damping with 20 kΩ load	0.735 typical
Tilt angle when coil hit end stop	5° typical from horizontal