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NEW Accudata GVM-10 Seismograph

 The Accudata GVM-10 is a data-logging seismograph.

Accudata is delighted to introduce the new GVM-10 seismograph which has been designed to monitor with absolurte precision, ground-borne vibration arising during Civil Engineering Works and for Blast Monitoring air over-pressure too.

Immediately after manufacture, Accudata seismographs are sent for calibration at the European laboratory that holds ILAC accreditation to the ISO/IEC 17025 Norm. It is the first company in the world and so far the only one to have earned the highest level of accreditation for seismographs’ velocity transducer calibration.

A blast monitoring seismograph for use in the UK must be able to measure Peak Particle Velocity (PPV) in mm/s-1 from 4Hz up to 100Hz. The frequency response should be as linear as possible in each of the three axes. The air over-pressure microphone must also be able to accurately measure unweighted levels from 100dBLinear peak to 148dBLinear peak with frequencies from 2Hz to 250Hz.

The laboratory responsible for all Accudata’s seismographs first calibrations also calibrates other manufacturer’s makes and models. One manufacturers range of seismographs, widely used in the UK, is so inaccurate that it is not fit for purpose. Full details may be found at the following link: https://www.linkedin.com/pulse/aiming-accuracy-published-quarry-management-may-2018-andy-maslin/ The article was published in the May 2018 edition of Quarry Management.

The Accudata GVM-10 has a rugged construction and is manufactured to very high quality standards in both build and in terms of accuracy.  It is also very easy to use and the price is suprisingly competitive when compared to other seismographs available in the UK.

Please see the information below for the full specification for the GVM-10. We also have a User Guide and Information sheet which may be downloaded.

This Seismograph is available for hire or for sale. Please contact us for pricing details or use the button below for hire.

 

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Seismic channels range0.03 mm/s to 200 mm/s
Seismic channels resolution0.01 mm/s
 Air over-pressure channel range2 Pa (100dB) to
502 Pa (148 dB)
Air over-pressure resolution0.1 Pa
Frequency range – Seismic channels2 – 250 Hz
Frequency range – Air over-pressure channels2 – 250 Hz
Seismic transducer’s typeGeophones fn = 8 Hz
Transducer’s response correctionIIR filter
Number of channels3 seismic & optional 4th air
over-pressure channel
Sampling rate (samples per second)1024
Analog to Digital Converter16 bits
Data storage memory1000 records
Frequency range2-250 Hz (ISEE)
1-315 Hz (DIN 45669-1)
Record time1- 32 seconds in increments of 2
seconds
Trigger modeAutomatic
Record modesWaveform
Bargraph
Data transferSD card
External power supply12 V
Internal power supplyLi-ion battery
Battery life50 hours
DisplayLCD 4 lines x 20 characters
& 4 LEDs
 Keyboard Touch panel
8 keys membrane
 Protection IP-65
 Dimensions (mm) 165x105x55 mm
 Weight (without accessories) 850 grams
 Working temperature -15 to 50 ºC
 Storage temperature -20 to 60 ºC
 Working humidity Non-condensing
 Storage humidity Non-condensing