Digital Broadband Seismograph

Application
Traditional seismic prospecting and earthquake prediction systems in seismic stations; Quality inspection of civil engineering;
Measurement of long-time ground micro-vibration;
Monitoring explosion vibration.

Specification

Waterproof and anti-interference, digital broadband seismographs are suitable for geological fixed or mobile seismic stations.

Frequency bandwidth	CZS-Ⅰ-2 (0.1Hz~150Hz), CZS-Ⅰ(0.05Hz~100Hz), CZS-Ⅱ(0.03Hz~100Hz) , CZS-Ⅲ (0.0167Hz~80Hz)
Self-noise	Below NHNM curve; below NLNM curve when 10s~10Hz
Sensitivity	1.1e+9 Cnt/m/s
Time stability	5×10-8s
Amplitude consistency between channels	＜5%
Phrase consistency between channels	＜0.1ms
Crosstalk suppression between channels	＞100db
Lateral vibration suppression	Better than 0.1%
Power consumption	Automatic mode: ＜400mW@100sps; Wifi mode: ＜600mW@100sps; Zibgee mode: ＜700mW@100sps; Ethernet mode: ＜800mW@100sps
Sampling rate	5~500 optional
External power supply	9V~15V, single power supply
Screen	LCD & LED
Operating temperature	-25℃~＋55℃
Automatic mode duration	＞30 days
Dynamic range	＞120dB
Storage capacity	32GB (removable SD card)
Data format	MSD (SAC etc. convertible)
Interface	Ethernet interface, Zibgee, Wifi, USB interface and RS232 serial interface; remote control and data tranmission via wired and wireless network
Waterproof depth	≥1m
Volume	φ188×246 mm
Weight	Approximately 9Kg

Feature
With a case made of high-quality alloy, the main unit is structurally firm, light weighted, waterproof and anti-interference.
With internal BDS and GPS for locating and timing, the seismograph can be buried 0.2m~0.4m underground. External GPS with lightning arrester is optional.
The internal Zigbee unit allows convenient wireless ad hoc network mode.
Besides internal electronic compass and attitude sensor, the chargeable lithium battery allows continuous operation of over 30 days.
The optional external 9～15V (0.5A～2A) DC power supply make the seismograph more suitable for long-time unmanned seismic observation in the wild.