Sound and Vibration Instrument Hire and Calibration

Vibrock V901 Seismograph Specifications

V901   Triaxial Vibration Recorder - single channel	£ 25 a day *

V901-2 Triaxial Vibration Recorder - dual channel + Vibration Dose Measurement	£ 33 a day *

PPV - Peak Particle Velocity Transducers
3 orthogonally mounted geophones
natural resonance is 4.5 Hz, frequency range 4.5 Hz to 250 Hz.
PPV measurement ranges - in accordance with BS 7385

Velocity : 0.1 mm/s to 200 mm/s

Displacement : 0.009 mm to 1.6 mm

Acceleration : 0.01 g to 20 g

VDV - Vibration Dose Value Transducers
3 orthogonally mounted accelerometers
Sampling rate : 1000 Hz
Accuracy of transducer : better than ± 5%
VDV measurement range
Vibration Dose in accordance with BS 6472 and BS 7482 part 3 with automatic day/night change over.
Both 30 second and 1 hour dose levels are recorded and the resultant 16 or 8 hour values calculated in the range 0.025 to 10 m/s^{- 1.75}
Modes of Operation :
Automatic triggering : from 0.1 mm/s to 200 mm/s Peak Particle Velocity (PPV)
Automatic full scale : from 0.1 mm/s to 200 mm/s Peak Particle Velocity (PPV)
Automatic record time : from 2 to 18 seconds
Trigger / Record : PPV / resultant or acceleration or displacement parameters.
Memory :
~ 300 blasts (depends on scan time) or 30 days continuous recording
Review of memory events : LCD
Keypad : enables site data to be stored
Instant readout of results : 4 line LCD
Download to PC : with supplied software and RS-232 cable
Batteries : 2 x 1.5 V "D" cells
Battery Life : based on laboratory conditions
    24 hours on - 20 days
    12 on / 12 off - 34 days
      8 on / 16 off - 45 days
      4 on / 20 off - 65 days
      2 on / 22 off - 84 days
General :
Operating temperature : - 10 to + 50 °C
Storage temperature : - 10 to + 50 °C
Weight of instrument : 6 kg
Overall Dimensions : 380 mm wide, 310 mm deep and 60 mm high.
E&OE - specifications subject to change without notice.
* Our standard hire charges are based on a 4-day minimum period, details other options.