A. Mount extension shaft and booster
Using the example of a single-acting positioner. The figure on the right shows the devices in a
flameproof enclosure.
1. Plug the extension shaft ① onto the shaft of the positioner.
2. Tighten the locking screw ② at the flat end of the positioner shaft.
3. Check that the extension shaft ① sits properly.
4. Turn the short threaded end of the threaded bolts ③ into the positioner up to the endstop.
5. Tighten the threaded bolts ③ lightly using an open-ended wrench.
Booster
E.2 Mounting a booster
SIPART PS2 with 4 to 20 mA/HART
302 Operating Instructions, 11/2019, A5E00074631-AE
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