Applications information

The VSV301 monitoring module is ideal for

monitoring, protecting, analysing and diagnosing

critical assets such as gas turbines, steam turbines,

hydro turbines and other rotating machines. A

VSV301 can be used as a stand-alone module or

as part of a more comprehensive monitoring

system operating with a VibroSight Server (and

data repository).

VibroSmart® systems (VSV30x + VSB300,

VSI010 + VSB010 and VSN010) conform to the

IEC 61850-3 requirements for power plant and

utility applications – when installed in specific

configurations. Contact Meggitt SA and/or refer

to the VibroSmart® distributed monitoring system

(DMS) hardware manual for further information.

For specific applications and other information,

contact your local Meggitt representative.

SPECIFICATIONS

Supported sensors

Currently available :Compatible with a range of sensors and signal conditioners using

2-wire current transmission and 3-wire voltage transmission

Dynamic input channels

Number of independent channels : 2

Measurement range

•Voltage (AC+DC) : ± 3 or ± 30 VPEAK

•Current : 15 or 150 mA

Frequency bandwidth (−0.1 dB) : 0.1 Hz to 19 kHz

•Analog high-pass filter :An optional (software configurable) analog high-pass filter can be

added to the AC path to configure the high-pass cutoff frequency

(−3 dB) as 0.1. 1.0 or 3.0 Hz.

This filter can also be disabled to allow DC-coupling of the input.

Input impedance

•Voltage : ≥ 100 kΩ, between the differential (high and low) inputs

•Current : 202 Ω ± 3 Ω, between the differential (high and low) inputs

Accuracy

•Amplitude : ≤ 1% of input FSD (measurement bandwidth from 10 Hz to 1 kHz)

•Phase : ≤ 1.5 ° (measurement bandwidth from 10 Hz to 1 kHz)

Signal to noise ration (SNR) : ≥ 80 dB (measurement bandwidth from 10 Hz to 2 kHz)

Common-mode voltage (CMV) range : ± 5 V