Partial Stroke Test (Pst) - Siemens SITRANS VP300 Operating Instructions Manual

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6.2 Parameter description
6.2.3.5

"3.5 Partial stroke test (PST)"

The partial stroke test is used for a partial stroke inspection of up/down and servo solenoid
valves on a cyclical or manual basis. The menus provide parameters for activating and
testing the partial stroke test. The following table contains an overview of the menus and
parameters:
3.5.1
3.5.2
3.5.3
3.5.4
"3.5.1 PST Overview"
The menu can be used to indicate the actual status of the partial stroke test. The following
table contains an overview of the menus and parameters:
3.5.1.1
3.5.1.2
3.5.1.3
3.5.1.4
3.5.1.5
"3.5.1.1 Reference status"
Purpose:
Description:
"3.5.1.2 SIL mode"
Factory setting:
Purpose:
Description:
96
PST Overview
PST basic settings
Initiate reference stroke
PST reference
Reference status
SIL mode
Test status
Current start position
Breakaway time
Indicates the reference status of the partial stroke test.
The following status information can be displayed:
 No reference stroke performed
 Start position reached
 Reference stroke OK
 Reference stroke failed
Off
Indicates the current SIL mode
The following status information can be displayed:
 Off
 Configure
 Active
The display indicates the current SIL mode of the device.
3.5.5 Activate SIL mode
3.5.6 PST interval
3.5.7 Initiate test
3.5.8 Stop test
3.5.1.6 Stroke time
3.5.1.7 Total time
3.5.1.8 Last test
3.5.1.9 Next test
SITRANS VP300 with or without HART
Operating Instructions, 03/2011, A5E01258666-03