rotork Skilmatic SI 3, Instructions For Safe Use, Installation, Basic Setup And Maintenance

SI manual – Section: Basic Settings for Commissioning

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Full Stroke Test
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3/13. Result (Last Test)

The result from the last test can be seen 

in the right hand column. The results are 

compared with the setup stroke. If this 

time is more than a pre-set tolerance 

(see below), then the test will be classed 

as a fail with a reason why.

4/13 – 10/13. Full Stroke Times

This section displays the times recorded 

for the full stroke setup and subsequent 

tests. The data is displayed in seconds.

4/13. Open (Setup)

 – this is the actual 

time recorded when an open command 

is simulated during the full stroke setup 

(fixed).

5/13. Open (Min)

 – this time can be 

adjusted and is used to determine a 

pass or fail. By default it is set to be the 

Open (Setup) time less 10%.

6/13. Open (Max)

 – this time can be 

adjusted and is used to determine a 

pass or fail. By default it is set to be the 

Open (Setup) time plus 10%.

7/13. Open (Last Test)

 –  this is the 

actual time recorded when an open 

command is simulated during the full 

stroke test (fixed).

8/13. ESD (Setup)

 –  this is the actual 

time recorded when an ESD command 

is simulated during the full stroke setup 

(fixed).

9/13. ESD (Min)

 –  this time can be 

adjusted and is used to determine a 

pass or fail. By default it is set to be the 

ESD (Setup) time less 10%.

10/13. ESD (Max)

 – this time can be 

adjusted and is used to determine a 

pass or fail. By default it is set to be the 

ESD (Setup) time plus 10%.

11/13. ESD (Last Test)

 –this is the 

actual time recorded when an ESD 

command is simulated during the full 

stroke test (fixed).

12/13. Close (Setup)

 – this is the 

actual time recorded when a close 

command is simulated during the full 

stroke setup (fixed).

13/13. Close (Last Test)

 – this is the 

actual time recorded when a close 

command is simulated during the full 

stroke test (fixed).

7.10  Partial Stroke Setup

The partial stroking function of the SI 

software allows the user to check if the 

actuator or valve is likely to fail due to 

mechanical wear or damage without 

fully stroking the valve and disrupting 

the process medium.

A Partial Stroke Test can be performed 

via the local display menus. 'Charging 

prior to PST!' will appear if a pressure 

top up is necessary before the test 

starts.

Open Limit

Partial Stroke

1 / 8

To Position

90%

2 / 8

Setup

3 / 8

Test

4 / 8

Result (Last test)

Pass

Partial Stroke times (Secs)

5 / 8

ESD (Setup)

1.27

6 / 8

ESD (Last test)

1.27

7 / 8

Open (Setup)

6.32

8 / 8

Open (Last Test)

6.31

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The Partial Stroke settings are shown 

below with an example of the partial 

stroke times recorded.