MEGGITTVM600Mk2 MPC4Mk2 + IOC4Mk2 machinery protection and condition monitoring module

Notes

The lower-resolution waveforms and spectra available from MPC4Mk2 + IOC4Mk2 modules configured for and 

running machinery protection only are intended to support the configuration, verification and troubleshooting 

of sensor / measurement chains.

VibroSight Vision uses a direct connection to a module in order to display these plots.

Firmware : Machinery protection firmware (640-025-vvv-ppp) running on the 

module (MPC4Mk2)

Configuration : Machinery protection configuration stored on the module 

(IOC4Mk2)

MPS functionality / licensing : Machinery protection (MPS) functionality is available by default

Condition monitoring system (CMS) functionality / processing

Measurement resolution

(user-configurable)

: 4096, 8192 or 16384 point waveforms /

1600, 3200 or 6400 line spectra

Waveform frequency span : 0 or 0.25 to 156.25, 312.5, 625, 1250, 2500, 5000, 10000 or 20000 Hz

Spectra resolution : 1600 line spectra: 0.1, 0.2, 0.39, 0.78, 1.56, 3.13, 6.25 or 12.5 Hz.

3200 line spectra: 0.05, 0.1, 0.2, 0.39, 0.78, 1.56, 3.13 or 6.25 Hz.

6400 line spectra: 0.02, 0.05, 0.1, 0.2, 0.39, 0.78, 1.56 or 3.13 Hz.

Spectra averaging : Yes: 1 to 100 / RMS, Peak hold or Mean

Measurement averaging : Yes: 1 to 100

Notes

The higher-resolution waveforms and spectra (and other plot types) available from MPC4Mk2 + IOC4Mk2

modules configured for and running condition monitoring are intended to support the display and analysis of 

dynamic measurement data for the purposes of condition monitoring.

VibroSight Vision typically uses a connection to a VibroSight Server in order to display such live and/or historical 

waveforms and spectra (and all other plot types).

Firmware : Condition monitoring firmware (640-033-vvv-ppp) running on the 

module (MPC4Mk2)

Configuration : Machinery protection configuration stored on the associated 

VibroSight Server

CMS functionality / licensing : Condition monitoring (CMS) functionality is optional and can be 

used by either:

(1) ordering a version of the MPC4Mk2 module with condition 

monitoring enabled

or

(2) ordering and uploading a MPC4Mk2 CMS license to a version of 

the MPC4Mk2 module without condition monitoring enabled.

See Ordering information on page 23 for further information.

Notes

For condition monitoring, the waveforms / spectra resolution and update rates are user-configurable, so the 

VibroSight Protect software automatically checks the configured processing load and will issue a warning if 

resolutions and/or update rates must be reduced.

For example, a MPC4Mk2 + IOC4Mk2 module can typically provide a maximum of two to four 6400 line spectra 

at 100 ms, depending on the required filter coefficients.

Processing functions

The following configurable signal processing blocks and measurements are supported by the 

MPC4Mk2 + IOC4Mk2 module:

Single-channel processing

Bearing absolute vibration:

• Dynamic channels only – with accelerometers or velocity sensors

• Fixed-frequency or order-tracking data acquisition

• Band-pass or ISO 2954 filtering

• Waveform and spectrum

• Up to 10 measurements for fixed-frequency data acquisition: up to 6 time-domain measurements (2 direct 

and 2 per integration level) and up to 4 frequency-domain measurements

• Up to 6 measurements for order-tracking data acquisition: up to 2 time-domain measurements (2 direct) and

up to 4 frequency-domain measurements.

Combustion dynamics:

• Dynamic channels only – with pressure sensors

• Fixed-frequency data acquisition

• Band-pass and notch (50 or 60 Hz) filtering

• Waveform and spectrum

• Up to 6 measurements for fixed-frequency or order-tracking data acquisition:

up to 2 time-domain measurements and up to 4 frequency-domain measurements.

Shaft relative vibration:

• Dynamic channels only – with proximity sensors

• Fixed-frequency or order-tracking data acquisition

• Band-pass filtering

• Waveform and spectrum

• Up to 6 measurements for fixed-frequency or order-tracking data acquisition:

up to 2 time-domain measurements and up to 4 frequency-domain measurements (AC displacement)

• 1 quasi-static measurement (DC gap / position).

Note: Shaft relative vibration processing outputs include both dynamic (AC) and quasi-static (DC) 

components.

Shaft eccentricity:

• Dynamic channels only – with proximity sensors

• 1 quasi-static measurement (eccentricity).

Air gap:

• Dynamic channels only – with air-gap sensors

• Fixed-frequency data acquisition

• Rotor shape and rotor signature waveforms with associated measurements (min. gap, max. gap, avg. gap, 

rotor eccentricity, rotor circularity and rotor ellipticity)

• 1 air gap measurement (min. gap).

Custom dynamic:

• Dynamic channels only – with other/custom sensors

• Fixed-frequency or order-tracking data acquisition

• Band-pass or ISO 2954 filtering

• Waveform and spectrum

• Up to 10 measurements for fixed-frequency or order-tracking data acquisition:

up to 4 time-domain measurements and up to 6 frequency-domain measurements

• 1 quasi-static measurement (DC).

Note: Custom dynamic processing outputs include both dynamic (AC) and quasi-static (DC) components

Position:

• Dynamic or auxiliary channels – with proximity sensors