A4900 Vibrio M

Vibration Meter, Analyzer and Data Collector in One

The A4900 Vibrio M device allows you to perform all basic vibro-diagnostics measurements for bearing condition, identification of mechanical faults and lubrication assessment.

The A4900 Vibrio M is equipped with 4MB of memory for data storage. Data memory allows you to store off-route and route measurements. The professional software DDS for Vibrio M can be downloaded from the Adash website free of charge.

Our expert system for automatic machine fault detection is included.

A4900 Vibrio Vibration meter

Key Features

  • All basic vibrodiagnostics measurements: Overall values, Time signal, Frequency bands, FFT Spectrum, Route measurement
  • 4 MB memory for data storage
  • Detects unbalance, looseness, misalignment or bearing faults
  • ISO 10816-3 included
  • 8 hours of operation
  • LED stroboscope
  • Available also in intrinsically safe version A4900 Vibrio M Ex

Measurement Screens

Technical Specifications

1 x ICP® powered accelerometer
Input range:
60 g PEAK with standard 100 mV/g sensor
e.g. 600 g PEAK with 10 mV/g sensor (sensitivity is adjustable in the device)
Velocity RMS: 10 - 1 000 Hz [mm/s, ips]
Velocity Peak: 10 - 1 000 Hz [mm/s, ips]
Acceleration RMS: 500 - 16 000 Hz [g]
Acceleration Peak: 500 - 16 000 Hz [g]
Velocity time: 1 - 1 000 Hz [mm/s, ips], 2048 samples
Velocity spectrum: 1 - 1 000 Hz [mm/s, ips], 800 lines
Acceleration time: 1 - 16 000 Hz [g], 2048 samples*
Acceleration spectrum: 1 - 16 000 Hz [g], 800 lines*
Acceleration Demod-Envelope RMS: 500 - 16 000 Hz [g]
Acceleration Demod-Envelope Peak: 500 - 16 000 Hz [g]*
Acceleration Demod-Envelope time: 500 - 16 000 Hz [g], 2048 samples
Acceleration Demod-Envelope spectrum: 500 - 16 000 Hz [g], 800 lines, range 400 Hz*
Displacement RMS: 2 - 100 Hz [µm, mil]
Displacement 0-Peak: 2 - 100 Hz [µm, mil]
Displacement Peak-Peak: 2 - 100 Hz [µm, mil]

* available in DDS software for Vibrio
IR temperature measurement:
From -70˚C to +380˚C (-94˚F to +716˚F)
Other functions:
LED stroboscope (0.17-300 Hz, 10 - 18 000 RPM)
LED torch
Vibration stethoscope
4 MB for data:
120960 overall values
or 900 measurements of 800 line spectra
or 2048 sample time signals
Data storing:
Route with DDS software (free download)
USB 3.0, 2.0 compatible
Free version of DDS software (limited database size)
Colour graphic OLED display 128x128 pixels, diagonal 1.5“ (38 mm)
1 x AC signal 8 Ω / 0,5 W for external headphones (signal listening)
2 x AA 1.5V batteries (alkaline, NiMH, Lithium - 8 hours of operation)
Operating: -5°C to 55°C
150 x 60 x 35 mm
330 g including batteries (without cable, sensor and  magnet)
540 g including batteries, cable, sensor and magnet
vibration sensor, coiled cable to connect vibration sensor, magnetic base for vibration sensor, headphones with 3.5 mm jack, USB cable, measuring tip for manual pressure on the sensor, transport case, USB flash drive with the manual

Data Sheets & Manuals

Data sheet vibration meter a4900 Vibrio

Data sheet


Pocket guide vibration meter a4900 Vibrio

Pocket guide

(English, Spanish)

Manual vibration meter a4900 Vibrio


(English, Spanish)

Data sheet vibration meter a4900 Vibrio

DDS Quick Guide

(English, Spanish)