Samson 3730 Series Operating Instructions

EB 8389-1S EN 31
Valve signature
4.3 Course of supply pressure
During control-loop operation, ve values of
the supply pressure are recorded and saved
in a circular buffer. A new supply pressure is
recorded and saved in the circular buffer
when it deviates from the last value plotted in
the graph by the amount entered in 'Record-
ing threshold'.
Data are recorded in the background re-
gardless of the operating mode selected. Da-
ta logging does not need to be activated. To
monitor the limits ('Lower limit' and 'Upper
limit'), the corresponding limit must be acti-
vated rst. The limits are automatically deter-
mined while the valve signature is being
plotted. Alternatively, user-dened limits can
be entered.
Dening parameters
1. Dene 'Recording threshold'.
2. Enter limits for monitoring. See u Sec-
tion 4.3.1.
3. Select classication for status messages.
See u Section 4.3.1.
1.
Diagnostics > Monitoring/tests > Valve
signature > Course of supply pressure
− Recording threshold:
0.10 to 14.00 bar, [0.50 bar]
2.
Device settings > Alarm settings
− Activate lower limit: [Yes], No
− Lower limit: [0.0] to 7.0 bar
− Activate upper limit: Yes, [No]
− Upper limit: [0.0] to 7.0 bar
Fig. 4: Diagnostics > Monitoring/tests > Valve signature > Course of supply pressure

Samson 3730 Series Specifications

General

Brand	Samson
Model	3730 Series
Category	Valve Positioners
Language	English