VDAU-6000 Condition Monitoring and Analysis System

VDAU-6000 provides cost-effective condition monitoring and diagnostic capability for critical and balance-of-plant machines, in plant or remote.

With 16 sensors and up to 12 measurements per sensor, most machine types including complicated gearboxes can be completely monitored by a single unit. Potential failure mode detection measurements (descriptors) are automatically monitored to alarm limits for early fault detection without requiring vibration analysis expertise.

Advanced diagnostics is possible by event recording and post processing of raw time signals in the unit. Once configured, VDAU-6000 does not require a PC or server for automatic condition monitoring functions, as all measurement calculations are done on-board and all communications are direct via Modbus.

VDAU-6000 is highly flexible and easy to configure; it can also be supported by Brüel & Kjær Vibro's international sales and support network with a wide range of services, including diagnostics, upgrades and complete turn-key solutions.

Sensor inputs:

  • 16 differential AC, DC and trigger inputs
  • CCS, -24V acceleration sensors
  • Displacement sensors
  • PT-100 temperature sensors

Digital I/O:

  • 4 digital inputs
  • 2 digital outputs (relays)

Communications hardware:

  • 3 Ethernet ports that can be used as switch
  • 1 SFPT port for fiber optic connections

Communications protocols:

  • Integrated Modbus TCP/IP master and slave
  • OPC DA/UA software available
  • Poll data via http request

Measurement modes:

Measurement Modes
VDAU-6x00 functions
Picture of VDAU-600 with a database server
VDAU-6000 with database server

(1) Sensors transmit vibration, displacement and process signals to the VDAU unit.
(2) The signals are calculated and processed on-board the VDAU and
(3) stored on the Compass 6000™ database server for trending and analysis

Instead of VDAU, sensor signals for condition monitoring can also be taken from the buffered outputs of the VIBROCONTROL 6000® machine protection system or any other API 670 compatible protection system by using the Vibration Interface VI-6080.

Picture of VDAU-6000 without a database server
VDAU-6000 without database server

(1) Sensors transmit vibration, displacement and process signals to the VDAU unit.
(2) The signals are calculated and processed on-board the VDAU and
(3) communicated to the customer’s control system for further display, trending and analysis.

Product Variations

VDAU-6000 bare bones unit
VDAU-6000
  • Bare-bones unit


Unit dimensions:

Height:   247mm
Width:    281mm
Depth:    44mm

VDAU-6100 on metal plate
VDAU-6100
  • Bare-bones unit mounted on a steel plate for installation in a frame for a 19" rack or to be hung up


Unit dimensions:

Height:   247mm
Width:    281mm
Depth:    44mm

VDAU-6200 in a junction box
VDAU 6200

VDAU-6200 01-00

  • Field monitor unit mounted in a junction box
  • Steel cabinet with 16 sensor cable glands (1 for each sensor cable, optimal for installation close to the sensors)

VDAU-6200 02-00

  • Field monitor unit mounted in a junction box
  • Steel cabinet with 2 large sensor cable glands (for multipair cable); optimal for installation far from sensors


Unit dimensions:

Height:   500mm
Width:    400mm
Depth:    160mm