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Seismic Monitoring System
SW-72
모델명 SW-72
제조사 IMV CORPORATION
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분류명 지진센서

 

Model

SW-72

Detecting Method

Omni-directional non-directivity detection by vector product acceleration

Frequency Range

0.3-10Hz (±10%)

Acceleration Range

0 - 5000 Gal (3-component vector product)
NS, EW direction : ±3000Gal, UD direction : +2000 - 4000Gal

Low Pass Filter

30Hz(-3dB), 4th butterworth

A/D Converter

16bit, 100Hz sampling

Indication

7-segment LED, 4-digit display (xxx.x or xxxx)

Alarm Step

Upper limit 3-step (ALM1 - 3) individual setting

Alarm Setting Value

Acceleration 0.1 - 999.9Gal *1

Alarm Contact

1a contact (Photo MOS relay, COM common)
Contact rating 200V-0.65A (common for AC/DC, peak value)
Relay : made by panasonic, PD1a type (AQY277A)

Alarm Reset Method

a. External reset terminal (all step reset by no-voltage a contact)
b. Automotac reset by built-in timer
1-9999sec., Setting interval: 1-sec., 0 is automatic reset OFF

DC Output

4-20mADC, Load resistance ≦300Ω
Full scale : 10-3000Gal (Setting interval : 1Gal)

Serial I/F

Communication with SW-74 (Conforms to RS422)

Clock

Accuracy:≦70ppm (6sec/day)

Time Connection Input

±30 sec correction (external input of no-voltage a contact)

Ambient Temperature

0-+50℃

Humidity Range

10-100%RH

Power Supply

24VDC ±10% *2 ≦10W

Outer Dimensions

See outside view

Structure

Water-proof structure (IP67)

Material

Aluminum die casting

Painted Color

Silver metric

Weight

4Kg

Mounting Method

Installation on the ground (fixed with anchor)

I/O Cable

Water-proof connector connected
One-touch lock connector made by NANABOSHI ELECTRIC MFG
NRW-2421PF11 (Outer diameter : 34.1mm approx.)
Cable made by Fuji Electric Wire Industries
Twisted cable (with sheilded)
FKEV-SB 0.3sq × 10 pair
Outer diameter : 10.5 mm approx.

Built-in accelerometer

Pickup model

VP-5511B/3

Conversion Method

Force balance servo type accelerometer

Detection Method

Horizontal 2-direction, Vertical 1-direction

Sensitivity

0.204V (m/s2) ±5%

Frequency Range

0-100Hz ±10%
0-30Hz ±3%

Natural Frequency

≧300Hz

Max. Measuring Acceleration

NS, EW direction : ±29.4m/s2
UD direction : -39.2-+19.6m/s2

Linearity

0.3% full scale

※1 Initial setting value at factory shipping is 80,250,400 Gal
※2 When connected with SW-74 (74SI), power is supplied from SW-74 (74SI)

파일명 확장자 다운로드
 SW-72[Brochure].pdf (2MB)
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