ZET 048-С-VER.1 Digital Seismic Recording System

  • Downhole design
  • GPS georeferencing
  • In-place verification
  • Integrated seismic recorder

From 4 600 USD

Specifications

of Digital Seismic Recording Systems ZET 048-С-VER.1

MEASURING CHANNEL SPECIFICATIONS
Direction of measuring axes Measuring axis Z is orthogonal to the base and directed from the base to the top, and the X and Y axes are parallel to the base
Nominal operating frequency range for measuring axes X, Y, Z: 0.3 to 400 Hz
Nominal sensitivity 0.5 V/(m/s2)
The limits of permissible relative error of measurement along measuring axes X, Y, Z, up to:
– in 0.3 to 1 Hz frequency range
– in 1 to 100 Hz frequency range
– in 100 to 400 Hz frequency range
±10 %
±4 %
±10%
Maximum measured value 20 m/s2
Integrated noise in the operating frequency range, max. 4•10−5 m/s2
Relative transverse penetration factor at 20 Hz, max. 1 %
Sampling frequency for channels 50, 100, 250, 500, 1,000, 2,500 Hz
Monitoring the status of primary transducer
Integrated system of electrical excitation of sensing elements (X, Y, Z axes) using the actuator Yes
Power supply monitoring of primary transducer Yes
Offline mode
Offline operation, min. 10 h
Full charge time of internal battery 18 h
Battery type Lead
Internal nonvolatile memory 32 GB
Time of recording to internal memory card at 500 Hz sampling frequency Over 1,000 h
Synchronization parameters
Synchronization type GPS or PTP (IEEE1588)
Clock accuracy 0.1 ррm
General specifications
Power supply voltage 9 to 18 V
Power consumption 4 W
Data interface Ethernet and USB 1.1 Full Speed
Dust and moisture protection class IP68
MTBF 10,000 h
Average service life 10 years
Weight (without panel), max. 6.5 kg
Dimensions (without panel), max. Base diameter: 170 mm
Height: 250 mm
Operating temperature range −20 to +60 °С (offline version)
−40 to 60 °С (stationary version)

Advantages

of ZET 048-С-VER.1 seismic recording system

Downhole design

Explosion-proof housing, compact dimensions and light weight

Generator

Built-in generator for seismic receiver in-place calibration

Power control

Continuous sensor power control

Synchronization

Clock rate of signal digitizing via GLONASS/GPS

Georeferencing

Seismic recording system georeferencing via GPS devices

Purpose

of ZET 048-С-VER.1 digital seismic recording system

ZET 048-C-VER.1 digital seismic recording systems are used offline or within the automated monitoring systems for conducting seismic and seismological studies, onshore and offshore works, at sea bottom and on ice, using the methods of refraction and reflection waves and deep-water  seismic sounding against the man-made and natural sources, the earthquake converted-wave method, as well as during geotechnical surveys.

ZETLAB SEISMO software supplied with ZET 048-C-VER.1 digital seismic recording systems allows to perform a fully featured analysis of signals using various algorithms and visualization of results in two- and three-dimensional format.

APPLICATION SCOPE

of ZET 048-С-VER.1 digital seismic recording system

Structure

of ZET 048-С-VER.1 digital seismic recording system

ZET 048-С-VER.3 digital seismic recording system complete in with solar battery

ZET 048-C-VER.1 digital seismic recording systems is a three-component seismic receiver and 24-bit measuring module, which ensures high sensitivity of seismic signal recording at three directions and analog-to-digital conversion of signals by independent ADCs.

ZET 048-C-VER.1 digital seismic recording systems has a built-in battery and nonvolatile storage device, which enables the offline recording for subsequent analysis of signals on PC.

The downhole design of ZET 048-C seismic station allows to use it in adverse conditions.

The figure below shows  FQ24-19ZJ-S plug board layout.

Plug board layout

Connector pins assignment is specified in the Table below:

Connector pin# Circuit Connector pin assignment Notes
1 RX+ LAN  data receiving line Ethernet connection line
2 RX- LAN  data receiving line
3 TX+ LAN data transfer line
4 TX- LAN data transfer line
5 USB_D+ USB data exchange line USB connection lines
6 USB_D- USB data exchange line
17 USB_VDD External power supply of +5V bus from USB bus
7 POW_IN External power supply 9-18 V
8 GND Common
9 Back-up
10 Back-up
11 GPS_ANT+ Used for GPS aerial connection (signal line) Lines for GPS connection
12 GPS_ANT- Used for GPS aerial connection (common)
13 SW_ON Recorder switcher To turn the recorder on/off, connect the line to GND circuit (pin #8)
14 Back-up
15 Back-up
16 Back-up
18 REL+ Dry / potential-free contact output “Dry contact” option
19 REL- Dry / potential-free contact output

Main functions

of ZET 048-С-VER.1 digital seismic recording system

Registration

Record and playback, viewing historical events

Analysis

FFT analysis, CPB analysis, super-resolution spectrum

Display

Signals and results of filtration and analysis

Network

Data communication via Ethernet and Internet

Standard configuration

of ZET 048-С-VER.1 digital seismic recording system

Basic equipment of the seismic recorder

Basic configuration of ZET 048-C-VER.1 digital seismic recording systems includes:

  • ZET 048-C digital seismic recording system with built-in seismic receiver BC 1313;
  • receiver for GLONASS/GPS synchronization;
  • USB cable;
  • built-in battery and power adapter;
  • built-in memory card for recording signals in offline mode;
  • CD with ZETLAB SEISMO software;
  • operational documentation.

From 4600 USD

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