BK Vibro VIBROCONTROL 6000

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1-channel input module for vibration velocity sensors Part B VC-6000

Compact monitor

Compact monitor Nov, 2014 C100584.002 Module Vers. 08 - 23 -

3 1-channel input module for vibration

velocity sensors

3.1 Function

♦ The input module for vibration velocity sensors, abbreviated to V-TIM

(Velocity Transducer Interface Module) is laid out for the connection of a

sensor.

♦ There are two executions for a V-TIM, distinguished by built-in linea-

risation of the frequency response

• V-TIM 8 Hz for vibration velocity sensors with a resonance at 8 Hz

(e.g. Brüel & Kjær Vibro sensors VS-068, VS-069).

• V-TIM 15 Hz for vibration velocity sensors with a resonance at

15 Hz (e.g. Brüel & Kjær Vibro sensors VS-077, VS-079).

♦ The input module is managed internally by a Sensor block (Firmware),

i.e. V-TIM and Sensor block together form a physical interface between

the VIBROCONTROL 6000 Compact monitor

and the outside world.

The measured signal from the connected sensor is acquired and

provided to the signal path for further processing and evaluation.

♦ A V-TIM combines the following hardware functions:

• Differential input amplifier

• Signal amplifier

• Frequency response linearisation for very low frequencies

• De-coupled buffered output (front BNC socket)

for sensor output signal

• Auxiliary voltage for cable damage monitoring

• LED signalling

3.2 Signal path

♦ The input of a V-TIM is a DC coupled differential input amplifier. The

output signal of the input amplifier is passed on to two separate signal

paths. Each path is assigned to an A/D converter channel.

BK Vibro VIBROCONTROL 6000 - Page 79