Siemens SITRANS P Operating Instructions Manual page 244

Dimension drawings
14.1 SITRANS P320/P420 for gauge pressure and absolute pressure from the gauge pressure series
Not with "flameproof enclosure" type of protection
2)
Not for "FM + CSA [is + XP]" type of protection
3)
Figure 14-1 SITRANS P320 and SITRANS P420 pressure transmitters for absolute pressure, from the gauge pressure
series, dimensions in mm (inches)
244
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC