Technical data
Input signal
Output signal
102
External measured values
To increase the accuracy of certain measured variables or to calculate the corrected volume
flow for gases, the automation system can continuously write different measured values to
the measuring device:
• Operating pressure to increase accuracy (Endress+Hauser recommends the use of a
pressure measuring device for absolute pressure, e.g. Cerabar M or Cerabar S)
• Medium temperature to increase accuracy (e.g. iTEMP)
• Reference density for calculating the corrected volume flow for gases
Various pressure transmitters and temperature measuring devices can be ordered
from Endress+Hauser: see "Accessories" section → 99
It is recommended to read in external measured values to calculate the following measured
variables:
• Mass flow
• Corrected volume flow
HART protocol
The measured values are written from the automation system to the measuring device via
the HART protocol. The pressure transmitter must support the following protocol-specific
functions:
• HART protocol
• Burst mode
16.4
Output
Current output
Current output
Maximum output values
Load
Resolution
Damping
Assignable measured
variables
Pulse/frequency/switch output
Function
Version
Maximum input values
Voltage drop
Pulse output
Pulse width
Maximum pulse rate
4-20 mA HART (active)
• DC 24 V (no flow)
• 22.5 mA
0 to 700 Ω
0.38 µA
Adjustable: 0.07 to 999 s
• Mass flow
• Volume flow
• Corrected volume flow
• Density
• Reference density
• Temperature
The range of options increases if the measuring device has one or more
application packages.
Can be set to pulse, frequency or switch output
Passive, open collector
• DC 30 V
• 25 mA
For 25 mA: ≤ DC 2 V
Adjustable: 0.05 to 2 000 ms
10 000 Impulse/s
Proline Cubemass C 100 HART
Endress+Hauser
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