ZET 7152-N-VER.3 seismograph
of ZET 7152-VER.3 seismograph
|Integrated transducers specifications|
|Type of seismic receiver||ZET 7152-N
|Number of axes||3 for ZET 7152-N
3 for ZET 7156
|Frequency range||0,3…400 Hz|
|Max. registered signal||± 80 m/s2 (ZET 7152-N)
up to 20 mm/s (ZET 7156)
|Noise level||0,003 m/s2 (ZET 7152-N)
0,001 mm/s (ZET 7156)
|Measuring channels specifications|
|Amount of measuring channels||6 measuring
|Sampling frequency by channels||30, 125, 250, 500, 1000, 2000 Hz (ZET 7152-N)
1, 8, 16, 32, 64, 128 Hz (ZET 7156)
|Dynamic range||144 dB|
|Exchange speed via HighSpeed USB 2.0||480 Mbps|
|Exchange speed via Ethernet||100 Mbps|
|Integrated electrical excitation system of sensing elements with actuator||for all measuring channels in accordance with ISO 16063-32: 2016|
|Integrated seismic receiver power control||Yes|
|Synchronization source of the registered signals||GPS or PTP (IEEE1588)|
|GPS synchronization accuracy||3 µs|
|PTP synchronization accuracy||10 µs|
|GPS module activation time||from 2 up to 15 min|
|GPS mode activation time||yes|
|Offline mode operation time, min||18 hrs|
|Integrated non-volatile memory volume||up to 32 Gb|
|Time of data recording to 32 Gb SD-card by 4 channels at 500 Hz sampling frequency||over 1000 hrs|
|Reading rate from SD-card (via USB)||>10 Mbps|
|Power supply voltage||16-27 V|
|Consumed power||4 W|
|Recorded data format||ANA/ANP
conversion into CSV and SEG-Y by means of ZETLAB software
|Dust and water resistance rating||IP68|
|Average lifetime||10 years|
|Weight, max||4 kg|
|Dimensions, max||260 × ∅160 mm|
|Operating temperature range||−10…+50 °C|
Functions and design
of ZET 7152-N-VER.3 seismograph
ZET 7152-N-VER.3 – is an offline wide-band triaxial seismograph with a wide dynamic range designed for monitoring of ground surface movement, local networks, temporary installations, structural health monitoring and seismic research performance.
The seismograph is represented by triaxial digital accelerometer ZET 7152-N and a triaxial seismic sensor ZET 7156 placed into a leak-proof casing.
The seismographs can operate via Ethernet network or via GSM network – in this case, the data transfer to Internet server is performed via 3G network in real time mode (this function is optional).
Synchronization of several seismographs within a single measuring network is performed via GPS or PTP (IEEE1588). Synchronization module ZET 7175 provides time synchronization of devices based on navigation satellites signals. GPS synchronization is of primary importance – it starts automatically as GPS-module detects satellites.
PTP synchronization (IEEE1588) is set in manual mode from operator’s PC. The main factor of this type of synchronization is the availability of “synchronization wizard”.
of ZET 7152-N-VER.3 seismographs
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