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  P/N: 810100-007                 TYPE: DT-20DX-4.5HZ  

LOW FREQUENCY GEOPHONE ELEMENT
Specifications (all parameters are specified at +22≧) 
SPECIFICATIONS P/N 810100-007
Type DT-20DX-4.5HZ
Frequency    Natural Frequency(fn) 4.5Hz
Tolerance \0.5Hz
Max. tilt angle for specified fn 10<
Typical Spurious Frequency >160 Hz
Distortion    Distortion +0.3%
Distortion measurement frequency 12 Hz
Max. tilt angle for distortion specification Vertical
Damping    Damping with calibration-shunt 0.70
Tolerance with calibration-shunt \10%
Coil Resistance   Standard 395 ohm
Tolerance \5%
Sensitivity      Sensitivity 23.4 V/m/s(0.594 V/in/s)
Tolerance \10%
Moving Mass(g) 11g(0.395 oz)
Maximum coil excursion p.p. 1.5 mm(0.060 in)
Physical Characteristics  Diameter 25.4mm(1 in)
Height 33.0mm(1.3 in)
Weight 89 g
Operating temperature range -40≧ to +100≧
Limited Warranty Period    1 years 
Note:
  1、High quality,reliable and cost effective.
   2、1 years limited warranty.
   3、2-D & 3-D seismic application.
   4、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
 

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