To Set Open Torque Switch (Tso); Switch Rotation Limit - Emerson Bettis 2000 Series Installation And Maintenance Manual

Installation and Maintenance Manual
E2K-401-0918 Rev. 1
DANGER
Reverse voltage phasing removes torque switch protection from reversing contractor valve
damage could occur.
If phasing has not been checked, do so before proceeding. Back valve away from Close
position with handwheel and test electrically, using Close controls. Readjust as required.
5.4.2

To Set OPEN Torque Switch (TSO)

5.5

Switch Rotation Limit

Torque Switch adjustment rotation may be limited. Remove switch cover to expose anti-
rotation pins at Open and Close positions. Remove pin from position 10 and insert into
desired number. Torque may be roughly estimated from Table on Bettis Spec Sheet or
determined by production or actual field test.
Figure 12
Torque Switch TSC and TSO Setting
a. Follow the procedure as for the TSC in open position.
Section 5: Torque Switch TSC and TSO Setting
September 2018
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