Proline Promass I 300 PROFINET Technical data
Endress+Hauser 245
16.9 Process
Medium temperature range –50 to +150 °C (–58 to +302 °F)
Dependency of ambient temperature on medium temperature
A0031121
33 Exemplary representation, values in the table below.
T
a
Ambient temperature range
T
m
Medium temperature
A Maximum permitted medium temperature T
m
at T
a max
= 60 °C (140 °F); higher medium temperatures T
m
require a reduced ambient temperature T
a
B Maximum permitted ambient temperature T
a
for the maximum specified medium temperature T
m
of the
sensor
Values for devices used in the hazardous area:
Separate Ex documentation (XA) for the device → 259.
Not insulated Insulated
A B A B
T
a
T
m
T
a
T
m
T
a
T
m
T
a
T
m
60 °C (140 °F) 150 °C (302 °F) – – 60 °C (140 °F) 120 °C (248 °F) 55 °C (131 °F) 150 °C (302 °F)
Density 0 to 5 000 kg/m
3
(0 to 312 lb/cf)
Pressure-temperature
ratings
An overview of the pressure-temperature ratings for the process connections is
provided in the "Technical Information" document
Sensor housing
The sensor housing is filled with dry nitrogen gas and protects the electronics and
mechanics inside.
If a measuring tube fails (e.g. due to process characteristics like corrosive or abrasive
fluids), the fluid will initially be contained by the sensor housing.