2% Deadband (S1, S3, S4 On) - Emerson Bettis 2000 Series User Manual

Section 4: Module Setup and Calibration
July 2019
4.3.9

2% Deadband (S1, S3, S4 ON)

Press UP to Select 2% control deadband. See Note (2) - Figure 12.
Press DOWN to Select 1.5% control deadband - Figure 12.
Figure 12
NOTE:
(1) Doubling the control deadband (bandwidth) reduces control accuracy by twice the
values stated on Page 1. Use this function only for difficult to control applications. Doubling
the deadband affects accuracy of all four versions of actuator operating controls, as follows:
Futronic II mode
Futronic III mode
Futronic IV mode
Futronic VII mode
(2) 2% Deadband (bandwidth) affects accuracy of Futronic III, IV & VII only, as below.
Futronic II mode
Futronic III mode
Futronic IV mode
Futronic VII mode
11
Installation, Operation and Maintenance Manual
Default
+/- 1.0%
+/- 0.25%
+/- 0.5%
+/- 0.25%
UP button
NA
+/- 2%
+/- 2%
+/- 2%
MAN-02-04-55-0735-EN Rev. 0
Double
+/- 2.0%
+/- 0.5%
+/- 1.0%
+/- 0.5%
DOWN button
NA
+/- 1.5%
+/- 1.5%
+/- 1.5%
Module Setup and Calibration