Deltabar FMD71, FMD72
Endress+Hauser 9
LP 1
HP
p1
p2
P = p2
LP
P = p1 + p2
HP
A0016449
LP Sensor module LP (low pressure)
HP Sensor module HP (high pressure)
p2 Head pressure
p1 Hydrostatic pressure
1 Transmitter
The FMD71/FMD72 is best suited to level measurement in vessels with pressure overlay or in
vacuum vessels and tanks, high distillation columns and other vessels with changing ambient
temperatures.
The sensor module HP is mounted on the lower measuring connection and the sensor module LP is
mounted above the maximum level. The transmitter can be mounted on pipes or walls with the
mounting bracket.
The sensor signal is transmitted digitally. In addition, sensor temperatures and the individual process
pressures present at the respective sensor modules can be individually evaluated and transmitted.
NOTICE
Incorrect sizing/order of sensor modules
‣
In a closed system, please note that the sensor module is affected by the superimposed head
pressure (p2) in addition to the hydrostatic pressure (p1). This must be taken into account when
sizing the sensor module on the high-pressure side (HP).
System integration
The device can be given a tag name (max. 8 alphanumeric characters).
Measuring point (TAG), see additional specifications.: Product Configurator order code for
"Identification", option "Z1"
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