7 - 24 VM600 MPS hardware manual (standard version) MAMPS-HW/E
Edition 17 - February 2018
Differential housing expansion
PROCESSING MODES AND APPLICATIONS
(2) Block diagram
7.11Differential housing expansion
(1) Description
In this situation (see Figure 7-21), two probes measure on opposite sides of the same
machine body (for example, the HP or the LP turbine housing). The MPC4 is set up for
dual-channel processing.
Input
Figure 7-20: Block diagram showing absolute housing expansion processing
Alarm
Alarm level
detector
Initial
gap
Value
Figure 7-21: Measuring the differential housing expansion on two parts of the same body
To monitoring
electronics
Machine
housing
Housing expansion probes
Right side
Left side
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