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P/N: 810102-001 　　　　　　　　　　　　　　　　　　TYPE: DT-HP102
HIGH PRECISION LOW DISTORTION GEOPHONE ELEMENT
Specifications (all parameters are specified at +25℃)
SPECIFICATIONS	P/N	810102-001
SPECIFICATIONS	Type	DT-HP102
Frequency	Natural Frequency(fn)	10 Hz
	Tolerance	±2.5%
	Max. tilt angle for specified fn	20°
	Typical Spurious Frequency	≥250 Hz
Distortion	Distortion with 0.7 in/s p.p. coil to case velocity	<0.10%
	Distortion measurement frequency	12Hz
	Max. tilt angle for distortion specification	10°
	Typical distortion (string of 12 geophones in series damped 0.7,measured at 12 Hz)	≤0.03%
Damping	Typical Open Circuit Damping	0.316
	Damping calibration-shunt resistance	1,000 ohm
	Damping with calibration-shunt	0.7
	Tolerance with calibration-shunt	±2.5%
Coil Resistance	Standard	395 ohm
Coil Resistance	Tolerance	±2.5%
Sensitivity	Sensitivity	27.5 V/m/s(0.698 V/in/s)
	Sensitivity with 1000 ohm Shunt resistor	19.7 V/m/s(0.500 V/in/s)
	Tolerance	±2.5%
Physical Characteristics	Moving Mass(g)	11.2g(0.395 oz)
	Maximum coil excursion p.p.	1.52 mm(0.060 in)
	Diameter	25.4mm(1 in)
	Height	33.0mm(1.3 in)
	Weight	89 g (3.14 oz)
	Operating temperature range	-40℃ to +100℃
Limited Warranty Period		3 years
Note: 　　1、Low distortion and close tolerance geophone 　　2、High quality,reliable and cost effective. 　　3、3 years limited warranty. 　　4、2-D & 3-D seismic application. 　　5、Suitable for land,transition zone,marsh and shallow water environments with different cases.
Warranty: 　　　Warranty excludes damage caused by high voltage and physical damage to the element case.
SPECIFICATION ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE