The Extech VB400 measures vibration readings from 10 Hz to 1 Khz, up to 20.4 g's peak. The VB400 displays acceleration or velocity in both metric and imperial units.
Specifications
Display LCD, 20 mm x 28 mm. Measurement Velocity, Acceleration. (RMS value). Mode Acceleration: g, m/s2, ft/s2 Velocity: mm/s, cm/s, inch/s Frequency range 10 Hz to 1 KHz Sampling time Approx. 1 second. Operating temperature 0 to 50°C ( 32 to 122°F ). Operating humidity < 80% RH. Power supply DC 1.5V battery ( UM-4/AAA ) x 4 PCs. Power consumption Approx. DC 12 mA. Weight 240 g ( 0.53 lb ). Dimension Meter: 175 x 40 x 32 mm, ( 6.9 x 1.6 x 1.3 inch ). Sensing head: Round 9 mm Dia. x 30 mm.
Accuracy Specifications
Mode
Range
Resolution
Accuracy
Acceleration
0.5 to 199.9m/s2
0.1
±(5%rdg+2digits)
@160Hz, 80Hz, 23±5°C
0.05 to 20.39g
0.01
2 to 656ft/s2
1
Calibration point: 50m/s2 (160Hz)
Velocity
0.5 to 199.9 mm/s
0.1mm/s
±(5%rdg+2digits)
@160Hz, 80Hz, 23±5°C
0.05 to 19.99 cm/s
0.01
0.02 to 7.87inch/s
0.01inch/s
Calibration point: 50mm/s (160Hz)
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