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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