Specifications

Hardware

The only required hardware are one or more M302 / M312B IEPE/USB converters and one or two IEPE compatible accelerometers each. The M302 / M312B converts the analog sensor signal into a USB compatible output signal. Two IEPE sensors can be directly connected to the M302 inputs whereas sensors with charge output can be connected via a Remote Charge Converter  IEPE100.

Software

Signal processing is performed by the software. It consists of independent modules similar to common hardware instruments. The following software instruments are currently available:

• VM-SE FMS: Combined license* for 2 channels with VM-FFT SE, VM-METER SE, VM-SCOPE SE
• VM-SE FMP: Combined license* for 2 channels with VM-FFT SE, VM-METER SE, VM-PLOT SE
  
• VM-BAL: Balancing System
• VM-FFT: Vibration Analyzer
• VM-FFT 3D: Waterfall Vibration Analyzer
• VM-TRACK: Run-up / Slow-down Tracking Analyzer
• VM-OCT+: Octave /Third-Octave Band Analyzer
• VM-SCOPE: Oscilloscope
• VM-PLOT: Y/t Plotter
• VM-REC: Data Logger
• VM-METER: General Vibration Meter
• VM-HAND: Hand-Arm Vibration Meter
• VM-BODY: Whole-Body Vibration Meter
• VM-SHIP: Vibration Meter for Ships
• VM-STRUC / VM-PERS: Building Vibration Meter

* The combined licenses VM-SE FMS and VM-SE FMP include software instruments with reduced functions:
VM-METER SE: VM-METER without integration
VM-SCOPE SE: VM-SCOPE without reports and annunciators
VM-FFT SE: VM-FFT without triggers, amplitude list, reports and annunciators
VM-PLOT SE: VM-PLOT without reports and annunciators
VM-SE FMS and VM-SE FMP are only operable with the IEPE/USB converter M312B.

In addition the following options are available which work with most instruments:

• VM-MAIL: Enables e-mail alerts
• VM-ADAM: Enables the use of external switching devices of ADAM series
• VM-RADIO: Enables the use of radio controlled switching devices of the FS20 system
• VM-PLAY: For replaying saved raw data without connected M302 or M312B
• VM-TXT: Converts saved raw data into text files
• VM-BIN: Converts saved raw data into binary files

System Components

1. Piezoelectric sensors with IEPE output are directly connected to the PC by the USB converter M302 / M312B. Piezoelectric sensors with charge output are connected with an in-line charge converter.
2. M302 / M312B units are connected to the USB-input of the PC. The PC supplies the M302 / M312B with energy. No external power supply is needed.
3. The instruments work on the PC-screen simultaneously. You can combine them at will.
4. Event messengers enable the instruments to transmit messages about changes of measured values or other events.

Calibration

The VibroMetra package includes a free calibration module which is useful for calibrating the entire measuring chain from the mechanical sensor input to the measuring display. By means of a vibration calibrator the sensitivity of a transducer can be determined easily. The measured sensitivity and the calibration period are stored in a data file.

Q&A