4.2 Structure
Depending on the customer-specific order, the device comprises different parts.
① Cover over buttons and nameplate with general information ⑨ Locking screw for the cover over the buttons
② Cover with glass pane (optional) ⑩ Cover (rear) for electrical terminal compart‐
ment
③ Display (optional) ⑪ Electrical terminal compartment
④ Safety catch (front) ⑫ Safety catch (back)
⑤ Retaining screw for locking the enclosure (Page 63) ⑬ Ground terminal
⑥ Process connection ⑭ Nameplate with information on the remote
seal
⑦ Nameplate with approval information ⑮ Blanking plug
⑧ Cable inlet, optionally with cable gland
Figure 4-1 Example
● The electronics enclosure is made of die cast aluminum or precision cast stainless steel.
●
The housing has a removable cover at the front and the back.
●
Depending on the device version, the front cover ② may be designed with a glass pane.
● The cable gland ⑧ to the electrical terminal compartment is at the side; either the left or
right-hand one can be used. The unused opening is closed with a blanking plug ⑮.
● The ground terminal ⑬ is located on the side.
● The electrical terminal compartment ⑪ for the supply voltage and shield is accessible when
you remove the back cover ⑩.
● The measuring cell with a process connection ⑥ is located in the lower section of the
enclosure.
The measuring cell is prevented from rotating by a retaining screw ⑤.
● The cover of the 4 buttons① is located on the upper face of the enclosure. The nameplate
with general information is located on the cover.
Description
4.2 Structure
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC 27
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