Portable
BROADBAND SEISMOGRAPHTOKYO SOKUSHIN CO., LTD.

SAMTAC-802C & VSE-15D

3-14-34, OUGI, ADACHI-KU.TOKYO.
TEL 03-3855-5911 FAX 03-3855-5921
URL http://www.to-soku.co.jp◆◆ Survey of an underground structure◆◆ After-shock, micro-earthquake andmicro tremor measurement
SAMTAC-802 series
24bit, 3 or 6 channels
26 hours operation by internal battery
Storage media:
CF card: SAMTAC-802C
Hard Disk: SAMTAC-802H

Servo velocity seismometer
0.2Hz to 70Hz, Full scale ±10 kine
Resolution max 0.0001Gal

330(W)×316(D)×180(H)Real time wave monitor

ANT.

Servo velocity sensor
VSE type

L.C.D
1GPS
24bit
Δ-ΣLow
2

PassC.P.U

CF card24bit
Δ-Σ

DC10 to 40V

Filter3

BufferMemory

3AhLithium

24bit
Δ-ΣBattery

SAMTAC-802C

AC / DC
AC85 to 220V

SAMTAC-802C, 802H
Pre AmpChannels

3 channels(CF card: 802C-3 / HDD: 802H-3)
6 channels (CF card: 802C-6 / HDD: 802H-6)

Input

Differential

Input impedance
Gain

100kΩ
0, 20, 40, dB

Range±10.24V at 0dB

Offset Drift

0.25μV / ℃

Noise4μV /(rms)Low-pass Filter

fo = 200Hz, 18dB / Oct

Set Parameters
ManualFunctions
Display & Function
TypeDisplayAD converter

RS-232C interface

Via modem of direct communications, data
retrieve, parameter setting, self-check,or memory remaining.
±15V (80mA)

24bit

Dynamic Range

130dB

Power supply For
External sensors

Bandwidth

0 to 0.8Nyquist Digital Filter

Power supply

Sampling Rate

50, 100, 200, 400, 500Hz

Full scale Error
Full scale drift

1%AC85 to 220V（Max. 3A）
Line input

60μV / ℃
Micro tremor / Earthquake
1mV ~ 9.999V (1mVstep)AND, 2AND, OR

Level trigger
Pre-event memory

0 to 255sec.

Post-memory

0 to 255sec.

TimingBase±0.05PPM (MCXO)

Synchronization

GPSInternal Battery

H.D on : +12W
7.2V, 5.4Ah (Lithium ion) × 2
Operate timeMax. 30hours without external power source,(Continuance recording mode. GPS off,
No external sensor power supply)

WeightApprox. 6kg
Cable length 5m
1.5m × ch
AC cable 1.5m, DC cable 1.5m

⊿tStorageMedia

Measurable (0.3μsec.)

Accessory
GPS Antenna
Input Cable

CF card (2GB) or Hard Disk (80GB)

Power Cable

Max. Recording

26 hours (card), 510 days (HD), 3ch 100sps

Capacity

DC10 to 40V（Max. 4W）
GPS on : +2W

Environmental
Operating Temperature 0℃ to 55℃
Dimension
330 (W) × 316 (H) × 180 (D) mm

GPS power control Manual, Continuance Time window

Header160 × 160 dot liquid crystal, with back light
3ch wave display (input wave, recorded wave)
parameter, GPS time & position,
A/D check, LCD check

AuxiliaryResolution

TriggeringMode

10 key and 10 function key
Time window / Trigger condition /Trigger channel / Sampling frequency / Amp gain/ Buffer size / Offset cancel

Soft wareTypeTime of event instrument location (Latitude.
Longitude. Elevation. Serial number)
P-wave2GB (CF card), 40 to 80GB (HD)Microsoft Windows compatible
Wave monitor, FFT analysis. Filter(L.P.F, H.P.F)
Integral, Differential

VSE-15D
ModelSpanFrequency Range
Sensitivity
Resolution

VSE-15D±0.1m/s
0.2 to 70Hz
(Low) 100V/m/s (High) 1000V/m/s
10-7 m/s2 (10-5Gal)

Dynamic Range
Max. Output
Calibration CoilPower Requirement
Environment

Approx. 140dB±10V
6μA / Gal
±15V
-30℃ to 70℃, 90％Rh

RecorderSAMTAC-802C or 802H
The specification may change without notification because of the proved product.

TOKYO SOKUSHIN CO., LTD.

3-14-34, OUGI, ADACHI-KU.TOKYO.
TEL 03-3855-5911 FAX 03-3855-5921
URL http://www.to-soku.co.jp
Dated: April 2010