EB 8389 EN
17
Operation
Table 1:
Diagnostic functions and test analysis
Diagnostic
functions
Control
valve
Open/
Close
(on/off)
valve
1)
Analysis
See section
Statistical information
Open/Close
1)
–
•
Breakaway time
Transit time
Valve end position
Data logger
3), 5)
•
•
Depending on trigger status selected
Valve position x
histogram
•
¡
Shifting working range
Working range
Set point
deviation
histogram
•
•
Limit working range
Connection positioner - valve
Inner (seat) leakage
Average set point deviation
Cycle counter
histogram
•
•
Stuffing box/external leakage
Dynamic stress factor
Drive signal
diagram steady-
state
•
¡
Air supply
Leakage pneumatics
Actuator springs
Drive signal
diagram
hysteresis
•
¡
Friction
1), 2), 3), 5)
External leakage perhaps soon
expected
Trend of travel
end position
•
•
Observing end position
Zero shift
• Full scope of functions
¡
Function is performed, but not analyzed
– Function is not performed
1)
Not Type 3730-4
2)
Not Type 3730-5 (1.5x)
3)
Not Type 3730-5 (1.6x)
4)
Not Type 3731-3
5)
Not Type 3731-5
Summary of Contents for TROVIS 3730-3
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