Siemens SITRANS VP300 Operating Instructions Manual page 38

Installing/mounting
4.4 Installing option modules
2. Disconnect the power supply lines or de-energize them, see section "Connecting the
3. Remove the module cover.
4. Remove the display module.
36
device (Page 45)".
CAUTION
Observe the following prior to working on the control valve.
Danger of injury.
 Prior to working on the control valve, you must move the control valve into the safety
position.
 Make sure that the valve has actually reached the safety position.
 If you only suspend the pneumatic auxiliary power for the positioner, the safety
position may only be reached after a certain waiting time.
SITRANS VP300 with or without HART
Operating Instructions, 03/2011, A5E01258666-03