
Description
3.4 Device components
SIPART PS2 with and without HART communications
24 Operating Instructions, 09/2007, A5E00074631-07
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Figure 3-7 View of positioner in explosion-proof housing
① Input: supply air ⑦ Restrictor Y1
② Output: Actuating pressure Y1 ⑧ Restrictor Y2
1)
③ Digital display ⑨ Friction clutch adjustment wheel
④ Output: Actuating pressure Y2
1)
⑩ Connection terminals for optional modules
⑤ Control buttons ⑪ Terminals standard controller
⑥ Transmission ratio selector
2)
⑫ Safety catch
1)
for double-acting drives
2)
only possible when positioner is open
3.4.2 Motherboard
Figure 3-8 Motherboard
The motherboard contains:
● CPU
● Memory
● Analog-to-digital converter
● Digital display
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