Document reference MAMPS-HW/E HARDWARE MANUAL
Edition 18 - March 2022 VM600 machinery protection system (MPS)
7-29
Differential quasi-static temperature monitoring
PROCESSING MODES AND APPLICATIONS
7.16Differential quasi-static temperature monitoring
This type of processing is equivalent to that used for differential housing expansion
processing. See 7.11 Differential housing expansion.
In this situation, two temperature probes are used and the MPC4 is set up for dual-channel
processing. The differential output is given by:
ΔX = X1 − X2
X1 input
Figure 7-27: Block diagram showing differential quasi-static temperature processing
X1 value
Alarm level
detectors
X2 input
X1 alarms
X1−X2 value
X1−X2 alarms
X2 value
X2 alarms
Static temperature
compensation 1
Static temperature
compensation 2
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