Cirrus research GV901 SWARM Ground Vibration Monitor (0.5 ‐ 250 Hz; ±50 mm/s; ±4 g)

Data Acquisition

Direction: X, Y, Z

Range frequency: 0.5 ‐ 250 Hz

Range velocity: ±50 mm/s (±2 in/s)

Range acceleration: ±4 g

Measurements: PPV, PPA, PVS, VDV, Velocity traces

Noise (RMS): 50 um/s at 250 Hz BW (2 mil/s)

Resolution: 1 um/s (0.04 mil/s)

Dominant frequency determination: FFT

Applications: Construction (metric)

GPS Location

Sensor type: GPS receiver

Accuracy: 10 meter CEP (33 ft CEP)

Sensor Tilt: Maximum velocity level: 50 mm/s (2 in/s)

Logging Interval Time: Range: 2 ‐ 6000 seconds

Alarm Trigger Level: Range (PPV): 0.2 ‐ 50 mm/s (0.008 ‐ 2 in/s)

Applicable Standards

SBR‐A / DIN4150‐3 / BS7385 / Circulaire du ’86 / ISEE

(USBM RI 8507 & OSMRE) / SN 640 312a / IN 1226

Communication

Wireless: WiFi, 4G/LTE

Modem: Network 4G/LTE

Internal Memory: Storage records: ~ 1 work week storage of log

Ambient Condition

Ingress protection rating: IP65

Operating temperature range: ‐10°C to 70°C (14°F to 158°F)

Storage temperature range: ‐30°C to 90°C (‐22F° to 194°F)

Power Supply

Power source: External

Minimal power supply: 5V USB power (min. 4.5V, max. 5.5V), min. 1A (5W)

Power consumption: 25mW sleeping, 1W idle, 3W active, 5W max

Calibration

Recommended biennial (every two years)*

Certified calibration by a Omnidots certified facility

*When used according to product manual and within ambient specifications.

Dimensions: 109 x 130 x 45 mm (4.29 x 5.12 x 1.77 inch)

Weight: 260 gr (9.17 oz)

Sensor Positioning

Mounting: 1 screw and 1 plug included

Auto levelling; Auto axes alignment: Automatic adjustment by gravity

Datasheet