Endress+Hauser Cerabar M PMC51 - Level Measurement (Level, Volume and Mass); Electrical Differential Pressure Measurement with Gauge Pressure Sensors

Cerabar M PMC51, PMP51, PMP55
Endress+Hauser 11
PMP55
The operating pressure acts on the process isolating diaphragm of the diaphragm seal and is
transferred to the process isolating diaphragm of the sensor by a diaphragm seal fill fluid. The
process isolating diaphragm is deflected and a fill fluid transfers the pressure to a resistance bridge.
The pressure-dependent change in the bridge output voltage is measured and evaluated.
Advantages:
• Depending on the version, can be used for process pressure up to 400 bar (6 000 psi) and
simultaneous extreme process temperatures
• High long-term stability
• Guaranteed overload resistance up to 4 times the nominal pressure
Level measurement (level,
volume and mass)
h =
p
ρ g
h
A0023678
h Height (level)
p Pressure
ρ Density of the medium
g Gravitation constant
Your benefits
• Choice of different level measuring modes in the device software
• Volume and mass measurements in any tank shapes by means of a freely programmable
characteristic curve
• Choice of diverse level units
• Has a wide range of uses, even in the following cases:
• in the event of foam formation
• in tanks with agitators of screen fittings
• in the event of liquid gases
Electrical differential
pressure measurement with
gauge pressure sensors
Fieldgate
FXA520
FXN 520
FXN 520
Multidrop-Connector
FXN520
Cerabar M
Á
11
2
A0023680
1 Shut-off valves
2 e.g. filter
In the example given, two Cerabar M devices (each with a gauge pressure sensor) are
interconnected. The pressure difference can thus be measured using two independent Cerabar M
devices.