Ground Vibration Logger

GROUND VIBRATION LOGGER

The AutoBlast™ is a ground vibration monitoring and logging device. It can be used in various applications of Civil Engineering such as industrial vibration monitoring, ground transportation traffic vibration monitoring, construction site monitoring, noise, and vibration monitoring in a blasting zone. It is also useful in the fields of Earthquake Engineering for monitoring the structures of buildings, bridges, and dams.

Measurement is taken using a packet of velocity sensors (geophones) and Air Overpressure level using a microphone, storing the data into a built-in memory storage, which can be downloaded to a PC via Bluetooth. AutoBlast™ can be confi gured to perform a sensor check operation before monitoring starts to make sure the sensors are functioning properly

1. History recording and Bluetooth capability to PC
2. Events exceeding a threshold value are logged automatically
3. Alarm notification: light signal or siren, as well as notifications sent by Email or SMS
4. Built-in modem

1. Vibration
1. Range: Up to 250 mm/s
2. Resolution: 0.0077 mm/s
3. Accuracy: ± 5% or ±0.5 mm/s
4. Frequency range: 1 to 180 Hz
5. Acceleration: Calculated from captured waveform
6. Trigger levels: 0.13 to 250 mm/
2. Air Overpressure Monitoring
1. Weighting scales ISEE Linear
2. Range 88 to 145 dB (500 Pa peak)
3. Resolution 0.0152 Pa
4. Frequency Response 2 to 250 Hz
5. Accuracy ± 10% or ± 1dB
3. Trigger level: 100 to 145 dB in steps of 0.1dB
4. Sampling rate: 50, 100, 200, 400, 500, 800, 1000, 1600, 2000 samples/sec for each channel
5. Real-time Clock (RTC) Built-in clock with backup battery
6. FFT Analysis via PC software, Australian 2187.2-1993 Standard
7. User interface 1x16 character LCD with backlight
8. Alarm notifi cation Alarm messages via email, SMS and external relay outputs
9. Auxiliary Relay Output 2 Auxiliary relay outputs 12V 1A (12W)
10. Battery Capacity Internal 6V 7000 mAh
11. Operating temperature -10o to +70oC
12. Humidity Up to 90% non-condensing
13. Supply Voltage 10 – 14 V
14. Power consumption 50 mA (Standby); 100 mA (Typical)
15. Dimensions: 180 x 110 x 45 mm
16. Warranty 12 months