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22
October 2020
Installation, Operation and Maintenance Manual
VCIOM-15792-EN Rev. 0
Section 3: Operation and Use
Operation and Use
3.6
Calibration of the Operation Time
The calibration of the operation time is made by Emerson according to customer
requirements and to technical data-sheet included in technical documentation. If necessary
it’s possible to modify or reset the operating time through the flow regulation valve placed
between the control valves enclosure and the pneumatic cylinder (Figure 17).
Pneumatic connection
Pneumatic connection
(Close) Screw for decrease speed
Screwdriver
(Open) Unscrew for increase speed of operation
Item 276: see operating diagram
Wr
en
ch
Figure 17
Adjustment of Operation Time
To carry out the adjustment, use an adequate Allen wrench and follow these steps (Figure 17):
•
Loosen the lock nut.
•
Screw with a screwdriver the setting screw to increase the operation time.
•
Unscrew with a screwdriver the setting screw to decrease the operation time.
•
After the adjustment is over screw the lock nut.