The VC120 is a stand-alone calibration device including
• A piezoelectric vibration exciter with power amplifier
• Built-in reference accelerometer
• A signal conditioner for the sensor under test with inputs for charge, IEPE and AC voltage
• USB interface for PC controlled operation
• A rechargeable battery
The VC120 works at a constant amplitude of 1 m/s² (RMS). The frequency is adjustable in fine intervals from 70 Hz to 10 kHz. It can be adjusted by a shuttle wheel. Alternatively, all settings can be made by the supplied PC software via a USB interface. Thus the VC120 can also measure frequency sweep diagrams.
A backlit LCD shows the adjusted frequency and the measured transducer sensitivity either in metric or in imperial units. The built-in NiMH accumulator lasts for 2 to 4 hours of calibration.
In spite of its compact design the instrument is portable and features a variety of functions, which are known only from more expensive systems.
