Operating conditions for gauge pressure and absolute pressure with
flush-mounted diaphragm
Ambient conditions
● Ambient temperature
Note
Observe the temperature class in hazardous areas.
Enclosure
Measuring cell with sili‐
cone oil filling
-40 … +85 °C (-40 … +185 °F)
Measuring cell with inert
oil (different pressure
classes)
1 bar/100 kPa/3.6 psi
-40 … +100 °C (-40 … +212 °F)
4 bar/400 kPa/58 psi
-40 … +100 °C (-40 … +212 °F)
16 bar/1.6 MPa/232 psi
-40 … +100 °C (-40 … +212 °F)
63 bar/6.3 MPa/914 psi
-40 … +100 °C (-40 … +212 °F)
160 bar/16 MPa/2321 psi
-20 … +100 °C (-4 … +212 °F)
400 bar/40 MPa/5802 psi
-20 … +100 °C (-4 … +212 °F)
700 bar/70 MPa/10152 psi
-20 … +100 °C (-4 … +212 °F)
Measuring cell with FDA-
compliant oil
-10 … +85 °C (14 … 185 °F)
Display
-20 … +80 °C (-4 … +176 °F)
● Storage temperature
-50 … +85 °C (-58 … +185 °F)
(with FDA-compliant oil: -20 ... + 85
°C (-4 ... +185 °F))
Climate class in accordance
with IEC 60721-3-4
4K4H
Degree of protection accord‐
ing to IEC/EN 60529/UL50-E
Enclosure with appropriate cable
gland
IP66/Type 4X
IP68 (2 hours at 1.5 m)
Enclosure with mounted M12 con‐
nector and/or lightning protection
IP66/Type 4X
Enclosure with mounted HAN con‐
nector
IP65
Electromagnetic compatibili‐
ty
● Interference emission and
interference immunity
In accordance with EN 61326 and
NAMUR NE 21
Process medium conditions
Process temperature
1)
● Measuring cell with
silicone oil filling
-40 … +150°C (-40 … +302 °F)
-40 … +200°C (-40 … +392 °F) with
cooling extension
● Measuring cell with inert oil -20 … +100 °C (-4 … +212 °F)
● Measuring cell with FDA-
compliant oil
-10 … +150°C (14 … 302 °F)
-10 … +200°C (14 … 392 °F) with
cooling extension
1)
Observe the temperature limits in the process connection standards (e.g. DIN 32676 and DIN 11851) for the maximum
process temperature for flush-mounted process connections.
Technical data
13.5 Operating conditions
SITRANS P320/P420 (mA/HART)
Operating Instructions, 06/2018, A5E44852162-AA
221