Blast vibration (PPV) reaches the structure
Peak particle velocity and dominant frequency are what building-damage criteria are written around. The SV 804 measures all three axes to Class 1 and flags events against your PPV thresholds automatically.
Combine SV 810 air-overpressure measurement with SV 804 ground-vibration monitoring to capture, analyse and document the complete blasting event.
A blast generates both ground vibration and air overpressure. Because they propagate through different media at different velocities, they reach the monitoring point at different times. Together, PPV, frequency and peak air overpressure provide a more complete record of the blast event.
Schematic representation of a blast record. Actual arrival times, amplitudes and waveforms depend on charge design, distance, geology and weather.
Peak particle velocity and dominant frequency are what building-damage criteria are written around. The SV 804 measures all three axes to Class 1 and flags events against your PPV thresholds automatically.
Air overpressure can be perceptible beyond the range at which vibration is felt, and is often reported as window or structural rattle. The signal is impulsive and low in frequency; the SV 810 measures it from 2 Hz and up to 168 dB Peak.
Use the SV 810 on its own for spot checks, or connect it to a monitoring station so both instruments report to the cloud together.
A compact station that mounts directly to a structure or to the ground. It detects events from PPV thresholds and dominant frequency, and sends alerts by SMS and email without an operator on site.
A dedicated blast instrument built around a solid-state piezoresistive pressure transducer. It measures Lpeak, Lmax, Lmin, Leq and overload in both pascals and decibels, and calculates dominant frequency on board.
Blast records get read by regulators, contractors and third-party engineers. The SV 810 follows the ISEE Performance Specifications for Blasting Seismographs (2022); the SV 804 is a Class 1 instrument to DIN 45669-1.
The SV 804 is a Class 1 instrument that measures peak particle velocity on three axes in accordance with DIN 45669-1 and ISO 4866. Dominant frequency is evaluated on board against DIN 4150-3 or BS 7385-2 criterion curves.
The meter is designed to meet the frequency-response and amplitude requirements of the ISEE 2022 Performance Specifications, with a digital true RMS detector at 0.1 dB resolution and an internal noise floor below 95 dB Peak.
An OLED display and four-button keypad put the complete setup on the instrument — stand-alone, in the field, in seconds.
Both instruments are built to stay outside. Rain, dust, heat or frost — the SV 804 and the SV 810 in its SA 810 enclosure keep measuring through all of it.
On-demand WAV event recordings, time-history data and optional 1600-line real-time FFT give reviewers the raw signal behind every number.
Watch how the meter is deployed, set up on site and connected into a monitoring system for blast documentation.
Air-Overpressure Meter for Blast Monitoring · SV 810
The sequence below is what a monitoring round actually looks like on a working site — whether you run one meter or a network of points.
Put the SV 810 on a stand for a spot check, or install it in the SA 810 enclosure and cable it to an SV 804 for unattended monitoring.
Both instruments record the same blast. The SV 810 measures peak air overpressure and its dominant frequency; the SV 804 measures PPV and dominant frequency on three axes.
Download the logged data from the meter. WAV recordings and FFT results are included, so each number can be verified. SvanNET adds remote viewing and reporting when you need it.
Issue a traceable record for the regulator, the client or the neighbour who called — built on standards-based measurement, not estimation.
Blasting operations are routinely asked to demonstrate compliance. The system records every event against the limits set for the site, and SvanNET makes the results available as a documented report.
Individual data sheets for each instrument, plus the leaflet covering the complete monitoring system.
A few lines are enough. We'll come back with instruments, placement and reporting options.
