Wide Band Digital Seismograph Short Period Seismometer 3 Traxial Seismometer for Micro-Seismicity Monitoring

• Customization: Available
• Accuracy: <1mm
• Horizontal Line: 1
• Model NO.: GDPA4
• Vertical Lines: 1
• Structure: Three Points, Capacitance Energy, 54.7uvw Structur
• ADC: 24bit
• Dynamic Range: Greater Than 135dB@100sps
• Bandwidth: DC— 150Hz
• Transport Package: Wooden Box
• Specification: Wide Band Digital Seismograph
• Trademark: GOLD
• Origin: China
• HS Code: 8544
• Production Capacity: 100 Sets Per Monthed

Product Description

 Wide Band Digital Seismograph Short Period Seismometer 3 Traxial Seismometer for micro-seismicity monitoring

A seismometer is an extremely sensitive electromechanical device used to measure ground movement in a particular area in the order of nanometres (millionths of a millimetre). The movement recorded on a time axis called a seismogram.

Many features make the broadband seismometer quick to install, including:
»  ALIGNMENT TOOLS
Successful installations depend on precise directional alignment, the
 seismometer makes that easy with removable north/south pointers installed in the base of the unit to make orientation to the scribe line effortless.
»  BUBBLE LEVEL
Visible on the top of the unit, so eyeballing is easy for perfect leveling.
»  THREE POINT LEVELING
Leveling is made easy with 360 access to the leveling feet, just put it on site, then move the wheels until the unit is level.
»  MASS UNLOCK
The automatic Mass Unlock simply unlocks the mass when you turn on the unit, noscrewdriver required.
»  CONNECTOR
With the connector located on the top of the unit, you can be ready for connecting the sensor to the recorder quickly and easily.

Technical Parameter about Wide Band Digital Seismograph Short Period Seismometer 

Sensor Type	Symmetrical Configuration (3 Component), Orthogonal Output
Feedback	Force balance with capacitive transducer
Bandwidth	0.0083 (120 seconds) - 80 Hz (Flat velocity response) 0.0167 (60 seconds) - 80 Hz (Flat velocity response)
Dynamic Range	>140dB (0.01 -0.05Hz); >160 dB (1-10 Hz)
Self-Noise	Below NLNM from 40 seconds to 10 Hz
Clip Level	>10 mm/s (@1 Hz)
Nominal Sensitivity	2000 V/m/s s ±0.5% (see supplied test sheet for precise value)
Full Scale Output	40 Volts Peak-Peak (Differential Output)
Output Impedance	<100 Ohms
Parasitic Resonances	>160 Hz
Cross Axis Coupling	<1%
Linearity	<-60 dB
Total Harmonic Distortion	<-60 dB
Calibration Constant	10 m/s2/A (nominal)
Calibration Input	Calibration current on 3 components simultaneously
Calibration Enable Capability	Active Low on Pin L to stay enable
Cal Coil	Single Cal signal input, isolated until cal enable line activated
Mass Position Outputs	±10 V
POWER
Input Voltage	9-18 VDC
Consumption	<0.7 Watts
Protection	Over-voltage, Reverse-voltage, & surge protection