The Columbia Model VM-300 Vibration Meter is a multipurpose vibration measuring tool for general field use and routine vibration checks of industrial machinery. It is portable and user-friendly. This portable gadget is the best tool for preventive maintenance.
For stability and error minimization, the Model VM-300 incorporates a charge amplifier input stage into its robust, precise piezoelectric accelerometer. An internal embedded microcontroller that is guided by a membrane keypad with seven splash-resistant keys operates the device.
The piezoelectric accelerometer found in the sensor probe produces an electric charge inversely proportional to the instantaneous value of the applied acceleration.
The VM-300 instrument receives this charge signal via a low-noise coaxial cable, which is then processed by a charge amplifier to produce a voltage signal corresponding to instantaneous acceleration. Instead of a handheld probe, the Model VM-300A comes with an accelerometer and a 10" cable assembly.
The VM-300 has the following features
- AC or battery operation
- Integrated micro-controller
- Standard sensor probe or optional accelerometer w/cable
- Low voltage lockout
- Optional printer
- Padded carrying case
Source: Columbia Research Laboratories, Inc.
||10 to 1,000 Hz
||0.1 to 300 in/sec F.S.
||0.001 to 3 inches F.S.
||0.1 to 300 g F.S.
||+4% of F.S.
|Low Frequency Rejection
||40 dB down (min.) at 1 Hz