Badger Meter SRD/SRI Valve Positioners - Manual (Page 51)

Menu 4: Characteristic of Setpoint
M 1 2 3 4
½ - - - ½ M and LED 4 flash
A relationship between the input signal and valve position is set.
- 1 - - - LED 1 lights up
4.1 “Linear”. See Fig. 4.1
- - 1 - - LED 2 lights up
4.2 “Equal percentage”: Results in an equal percentage characteristic line
with a position ratio of 1:50 for a valve of linear characteristic.
See Fig. 4.2
- - - 1 - LED 3 lights up
4.3 “Inverse equal perc.”: Results in an inversely equal percentage charac-
teristic line with a position ratio of 50:1 for a valve of linear characteristic.
See Fig. 4.3
3 . 4 . g i F 2 . 4 . g i F 1 . 4 . g i F
- - - - 1 LED 4 lights up
“User defined characteristic”:
A characteristic line entered via
communication (not via local keys) with
2 to 22 supporting points) is activated.
A linear characteristic is factory set.
Operation
Page 51 August 2014 POS-UM-00010-EN-03