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Figure 33 Configure Menu
4.3.9.1 Valve Characteristics
The positioner must be configured to supply the correct relationship between input signal
and valve position. This is called the
position characteristic
.
Table 8 on page 61 lists
configuring the positioner characteristics.
Use of a linear characteristic is recommended unless the process dynamics or control
valve application calls for an alternate characteristic. SVI3 offers a custom characteristic
for specialty applications. Prior to selection of custom, the parameters for the custom
characteristic must be entered using SVI3 DTM.
ATO
Setup
+
+
+
+
+
*
*
*
Air to....Menu
Configuration Menu
ATC
*
Charact
LINEAR
*
*
EQ% 30:1
*
EQ% 50:1
EQ% CAMFX
QUICK50
*
*
CUSTOM
PSI
*
*
BAR
KPA
T.S. OFF
*
*
*
*
T.S. ON
ENGLISH
*
*
FRENCH
- +
<VALUE>
<VALUE>
+/-
Menu
Pressure Units
Menu
Tight Shutoff
Menu
Language
Menu
Air to
Menu
CONFIG
CONFIG
Charact
Menu
Language
Menu
Tight Shut-off
Menu
Pressure
Menu
Units
+
Displays tight shutoff
value if turned on.
Press * to change T.S. ON/OFF status.
Press + or - to enter new value.
Press * to accept new value and proceed
to next menu item.
Select display language.
Select display
units for pressure.
Select Air To Open (ATO)
or Air To Close (ATC). Must
match the actuator exactly.
Turn tight shutoff on or off
to provide maximum actuator
force at 0%
Press * to select option.
Press + or - to accept and
proceed to next menu item.
See Figure 27 for full
menu structure
Press the Hold
button at anytime
to cancel the
selected action
and return to the
menu item above
it in the navigation
tree.
This is not configurable via
local interface. This must be
configured using DTM to setup
custom valve characteristics
