The V901 Seismograph is designed and manufactured by Vibrock to meet the needs of our consultancy services and subsequently our clients.
The V901 is a battery powered portable vibration monitor, purpose designed for measuring blasting, piling, demolition, construction and traffic vibrations. It can also measure air overpressure from blasting using the optional microphone.
Battery life is up to 3 weeks for continuous 24 hour monitoring.
Results can be downloaded to a PC, where they can be analysed printed and saved using the software supplied. The V901 Seismograph is also available as a twin channel transducer instrument, enabling measurements on a common time base in two places at once.
A standard 50m extension cable is supplied with the twin channel seismograph. The V901 seismograph also comes with the option of a built in thermal printer to provide single or multiple printouts of events, on site.
In addition, the V901 seismograph can be configured to support a Vibration Dose Value (VDV) transducer either as a single unit or as one channel of the twin version to enable concurrent VDV and PPV measurements.
The V901 Twin Channel Seismograph, with landline modem kit
The V901 range of Seismographs can be connected to either a landline or GSM modem. This enables the customer to access the V901 from their offices to alter the setup of the Seismograph or to interrogate and download the Seismograph’s memory.
V901 Seismograph Specification
The V901 seismograph’s technical specification is the same as that of the field portable unit but without the on-board printer.
V901 Two Stage Audible Alarm
The two stage audible alarm, which also has high intensity strobe beacons, can be used with our V901 and V801 Seismographs. The alarm comes complete with a standard 10 metre extension cable and a battery charger (with LED indication).
By using the seismograph’s setup menu, the customer can set a low and high alarm level to activate the alarm when the ground vibrations detected by the seismograph are approaching (or exceeding) site/safety limits.
The on/off switch is used to switch the siren on and off. It does not switch off the actual alarm.