TopMessage - Vibration Monitoring

The AMDT/V module in the TopMessage system provides vibration analysis and monitoring in one system. TopMessage's modular system enables the simultaneous monitoring of both machine vibration and process values such as temperature and pressure.

Module AMDT/V - technical specifications

Potential isolation
Potential isolation of the entire module and analog circuit board
Additional optical isolation of digital input and outputs and CAN interface

Analog inputs
8 analog inputs, measuring range +/-25V / +/-10V / +/-2.5V /+/-1V,
14 bit resolution, synchronous sampling,
Maximum sampling rate 200KHz (4 channels at 50KHz, or 8 channels at 25KHz),
Anti-Alias-Filter, type 10 KHz

Analog outputs
2 analog outputs, 10 V voltage range, 14 bit resolution

Digital inputs
4 digital inputs, galvanic isolated, low-level 0..1.5V, high-level 3.5..90V,
2 with frequency counters, max. 100 KHz

Digital outputs
4 digital outputs, galvanic isolated, high-level max. 50V, 2.5A

Triggering and recording

• Triggering by time, analog or digital input
• Trigger threshold, edge, adjustable polarity
• Asynchronous or synchronous triggering (e.g. machine shaft reference impulse)
• Sampling frequency 1 Hz ..50 kHz with 4 channels or 25 kHz with 8 channels
• Recording density max. 8192 points per channel, max. 8 channels synchronous
• Adjustable pre-triggering within 0..100% range of recording density

Digital filters

• Filter types: low pass, band pass or high pass
• Filter ordering: 2..8, Butterworth characteristic, preselected
• Limit frequency 1 Hz ..10 kHz
• Filter adjustable and channel selective

Time domain signal
Averaging of time domain signals (in synchronous triggering)
Variable data compression

FFT / frequency spectrum

• Flexible setting of frequency range, line numbers and resolution
• FFT algorithm for 256, 1024 or 4096 points with 100, 400 or 1600 lines respectively
• Choice of standard window functions 'Hanning', 'Flat Top', etc.
• Frequency spectra averaging
• Variable data compression

Vibration measurement values

• Flexible configuration via selection list
  Values available:
• Arithmetical average
• Peak to peak value
• TRMS values
• Main vibration amplitude/frequency
• Synchronous shaft vibration amplitude/phase position
• Dual synchronous shaft vibration amplitude/phase position
• Rotation
• Min-Max
• Evaluation of frequency wave

Monitoring

• Threshold value graphs (support procedure) to monitor "time domain signal/frequency spectrum" threshold values
• Threshold values for "vibration measurement value" monitoring
• Configurable digital outputs for "warnings" and "alarms"
• Configurable windows for machine speeds