Samson 3731-5, Mounting And Operating Instructions

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86 EB 8387-5 EN
Appendix
Code
no.
Parameter – Readings/
values [default setting]
Description
20* Select characteristic
[0] to 9, ESC
Select characteristic
0 Linear
1 Equal percentage
2 Reverse equal percentage
3 SAMSON butterfly valve, linear
4 SAMSON butterfly valve, equal percentage
5 VETEC rotary plug valve, linear
6 VETEC rotary plug valve, equal percentage
7 Segmented ball valve, linear
8 Segmented ball valve, equal percentage
9 User-defined (defined over operator software)
Note: Characteristics (see section 12.5)
21* Transit time OPEN (w ramp
OPEN)
[0] to 240 s, ESC
Time required to move through the operating range when open-
ing the valve.
Limitation of the transit time (Code 21 and 22): For some
applications it is recommendable to limit the transit time of the
actuator to prevent it from engaging too fast in the running
process.
Code 21 has priority over Code 15.
22* Transit time CLOSED (w ramp
CLOSED)
[0] to 240 s, ESC
Time required to move through the operating range when closing
the valve.
Code 22 has priority over Code 14.
23* Total valve travel
[0] to 99x10
7
, RES, ESC
Exponential reading from
9999 travel cycles onwards
Totaled double valve travel
Can be reset to 0 by selecting RES.
Note: the total valve travel is saved in a non-volatile memory after
every 1000 full valve travel cycle.
24* Total valve travel limit
1000 to 99x10 7 ,
[1,000000], ESC
Exponential reading from
9999 travel cycles onwards
Total valve travel limit. The fault alarm and wrench icon appear
on the positioner display.