PT-302 - Product Photo

FOUR CHANNEL SEISMOGRAPH

The PT302 probe includes three geophone sensors with sensitivities both to P and S waves. The acquired P and S wave signals are transmitted to the seismograph as analog signals via a 35m cable and then pre-amplified and digitized in the handheld device. Up to 4 geophones can be connected to the PT302 seismograph. There is another separate input for the trigger signal which can originate from a geophone, a capacitive microphone or simply a contact wire. The P & S signals are displayed on a color LCD panel, and the keyboard facilitates the user with simple & easy to use data visualization tools. An application software is supplied with the device to help editing and post-processing the captured signals under the Windows operating system. The waveforms are saved in the device’s built-in flash memory and can be further retrieved by a laptop or desktop computer for analysis, reporting & future reference.

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Description

model: PT302

Downhole seismic testing is one of the most popular investigations in the study of ground layers in construction, oil industry and mining projects. This test provides the engineers and researchers of geophysics and geotechnics, with valuable data that can be acquired very efficiently at a reasonable cost. The PT302 tester is a 4 channel seismograph designed for downhole seismic testing. This tester which satisfies all the requirements of ASTMD-7400 standard, comprises of a probe and a hand held electronic processing & display module. This portable solution allows engineers to efficiently and easily operate the 4 channel seismograph for downhole seismic testing. The acquired P&S waveforms can be visualized and stored for future study.

PT-302 - Product Photo

Applications

  • Bridge/Dam Foundation Analysis
  • In – situation Material Testing
  • Soil and Rock Mechanics
  • Earthquake Engineering
  • Liquefaction Analysis

Specifications

Parameter Range
Digitizer 24Bit x 3 channel 16 k Samples/sec. ADC
Sampling Interval 0.0625, 0.125, 0.25, 0.5, 1, 2 (msec.)
Sample Count 16384 Samples
Preamplifier Gain 24dB, 36dB, 48dB Selectable
SNR @ 16ksps 106dB
Bandwidth 10Hz to 8kHz
Sensors 3 Axis Orthogonal Accurate Geophones
Data Transmission Analog
Trigger Input Positive/Negative, Software Adjustable
Probe Diameter 52mm  Diameter
Probe Length 600mm
Packing System Air Cushion
Packing  Diameter 55 to 80mm
IP Class IP67
Cable Length  35m
Operating Temp. -20 to 70°C
Power 12VDC, 1 A
Dimensions 22.8 cm X 15.1 cm X 5 cm
Weight                                                                     500 gr.

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