Japan, Tokyo Sokushin
Tokyo Sokushin CV-374AV / CV-374BV Network Sensor
Product: made in Japan
Manufacturer: Tokyo Sokushin
Model: CV-374AV / CV-374BV
Seismometer with built-in tri-axis velocity-meter and corresponding to the network
Health Monitoring and Earthquake Observation by Servo Velocity-meter
・All-in-one sensor recording large capacity waveform and LAN connection
・Observationof micro-tremor and small earthquakeby servo velocity-meter
・Response analysisof structure by micro-tremor
・Recording continuous record for approx. 30 days and trigger record for approx. 160 hours in a CF card
・Connect by single LAN cable including power and synchronization (CV-374BV)
CV-374A : For general network line.
(DC12V power supply is necessary to the main unit)
CV-374B : For exclusive network line by single LAN cable.
(Power supply and various synchronizations from exclusive HUB)
Common Specifications CV-374AV, CV-374B
Analogue, A/D converter | |
Input | ±4.0V, ±10.0V (Option) |
Sampling | 100, 200Hz |
Resolution | 0.25μm/s (25μkine) (Sampling :100Hz / full scale) |
Sensor | |
Type | Servo Velocity-meter (VSE-14C) |
Component | 3 Tri-axial |
Full scale | ±0.02m/s (±2kine) |
Bandwidth | 0.1 to 100Hz |
Data record | |
Trigger level | 5μm/s to 1mm/s (0.5 to 100mkine) |
Trigger logic | OR, AND, 2AND |
Pre trigger | 1 to 300 sec. |
Post trigger | 10 to 300 sec. |
Trigger data | Approx. 160 hours (1 to 10 min./File) |
Continuous data | Approx. 480 days (10 min./File) (CF MEMORY 32GB) |
Overwrite format | Delete the old data, overwrite the new data |
Media | CF card, Max. 32GB FAT32 format |
Wave format | WIN32 compliance |
※2: Provided AC adaptor |
Clock calibration | ||
Accuracy | < ±2.5ppm, -30℃ to +75℃ | |
Clock synchronization | GPS or NTP server | |
Slave unit can adjust by the transfer time code | ||
Clock accuracy | < ±0.62ppm (GPS) | |
Clock function | Year to Seconds | |
Daily 0.1 second (no GPS, NTP) | ||
Master/Slave function | ||
Time code | Hour, minute, seconds mark | |
Port | RS-485, Max. transmission 1km | |
Data interlock | Trigger data start / stop | |
Synchronization | Synchronized within 1msec. | |
accuracy | (When using exclusive HUB) | |
Communication | ||
Ethernet | 10base-T or 100base-TX (automatic change) | |
Port | 1 port | |
Protocol | telnet, ftp, TCP/IP socket | |
Power supply | ||
Input | DC12V (10V to 24V) / CV-374AV※2 | |
Exclusive HUB / CV-374BV | ||
Power consumption | Max.3.6VA (GPS) | |
Internal battery | Lithium battery 6.8V, 0.9A | |
Battery backup | Approx. 90 min | |
Environment | ||
Temperature | 0℃ to +50℃ | |
Proof | IP65 | |
Dimension and Weight | ||
Case | Cast Aluminum | |
Dimension | 180mm (W) × 120mm (D) × 100mm (H) | |
Weight | Approx. 1.5kg | |
Connector | Water-proof connector |
Example of Use
The specification may change without notification because of the proved product.
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