Á4400 VA4 II Adash

VA4 pro ii

Vibration Analyzer 4 Professionals

On site vibration analysis

due to large screen

All in one

12 measurement modes

Fully synchronous measurements

4AC + 4DC + Tacho


VA4 Pro II

A4400 VA4 Pro II
VA4 Pro II is a professional 4/4 channel signal analyzer built especially for vibration analyst who has the highest expectations of their equipment. With up to 90 kHz frequency range, raw signal recording and many special measurements such as full spectrum, the VA4 Pro II fulfills all vibration analysts measurement needs.

VA4 Pro II


A4400 VA4 Pro II
4x AC input – vibrations
4x DC input – process values
1x Trigger input (speed probe)
Triaxial sensor ready
1140 x 800 pixels display
64 GB memory
Robust casing
USB communication

VA4 modules


Technical specifications

VA4 Pro II specifications

Input channels:
4 x AC, ICP® power supply on/off
4 x DC for process values
1 x TACHO for speed probe/external trigger
Input range:
AC +/- 12 V peak-peak
DC +/- 24V
AD conversion:
24 bit, 64 bit internal signal processing
No AutoGain function!
Dynamic range S/N:
120 dB
Frequency ranges (-3 dB):
Maximum range: 0.35 Hz - 90 kHz (1 Ch, 194 kHz sampling)
Maximum range: 0.35 Hz - 25 kHz (4 Ch, 64 kHz sampling)
Minimum range: 0.35 Hz - 25 Hz (4 Ch, 64 Hz sampling)
Sampling mode:
Fully simultaneous for 4 channels
FFT resolution:
Min. 100 lines
Max. 3 276 800 lines
Unit modes:
Analyzer - analytical measurements
Data collector - route measurements
Balancer - 1 and 2 plane on site balancing
Run up - run up and coast down measurements
Recorder - raw signal recording for later post analysis
Stethoscope - listening of the bearing/machine noise
FASIT - expert system for automatic fault detection
Octave analyzer - hearable sound measurements
Bump test - measurement of natural frequencies
ADS - Animated Deflection Shapes (Operating deflection shapes)
Ultrasound - measurement of ultrasound in 30 - 50 kHz range
1140 x 800 pixels
Intel Atom 1.9 GHz
Memory, Route:
64 GB, max. 16 GB for one route, number of routes is limited by free memory only
Data processing:
Real time FFT
ACMT - low speed bearing analysis
Order analysis
User band pass analysis
RPM measurement
DC measurement
Orbit measurement
Raw signal recorder:
64 kHz sampling frequency
4 Ch memory consumption 3 GB/hour
4 Ch total recording - 20 hours
Manual, External, Signal level, Time
Speed change, Time interval
USB 3.0, 2.0 compatible
Operating temperature range:
-10˚C to +50˚C
Battery 8 hours of operation
Aluminium heavy duty
Size & Weight:
280 x 205 x 55 mm, 2200 g
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Data sheets & manuals