Starter vertical geophone with cable and connector used to start recording in seismograph.
Frequency
Natural Frequency (fn): 14 Hz
Tolerance: +/- 5%
Max. tilt angle for specified fn: 20°
Typical Spurious frequency: >240 Hz
Distortion
Distortion with 0.7 in/s p.p. coil to case velocity: <0.2%
Distortion measurement frequency: 14Hz
Max. tilt angle for distortion specification: 20°
Damping
Typical open circuit damping: 0.22
Damping with 1000 Ohm shunt resistor: 0.51
Tolerance: +/- 5%
Coil Resistance
Standard: 395 ohm
Tolerance: +/- 5%
Sensitivity
Open circuit intrinsic voltage sensibility: 28 V/m/s
Sensitivity with 1000 Ohm shunt resistor: 20.1 V/m/s
Tolerance: +/- 5%
Physical Characteristics
Moving mass: 11 g
Maximum coil excursion p.p.: 1.5 mm
Diameter: 25.4 mm
Height: 33.3 mm
Weight: 86 g
Operating temperature range: -40°C to +70°C