Proline Promag 55 PROFIBUS DP/PA Technical data
Endress+Hauser 141
10 Technical data
10.1 Technical data at a glance
10.1.1 Applications
Liner specific applications:
• Promag S (DN 15 to 600 / ½ to 24"):
– Polyurethane lining for applications using cold water and for abrasive fluids, e.g. for sludge with
particles smaller than 0.5 mm (< 0.02 in)
– Hard rubber lining for all applications with water (especially for drinking water)
– Natural rubber lining for all water applications and for highly abrasive fluids, e.g. for sludge with
particles larger than 0.5 mm (> 0.02 in)
– PTFE lining for standard applications in the paper and food industries
– PFA lining for all applications in the paper and food industries; especially for high process
temperatures and applications with temperature shocks.
• Promag H (DN 2 to 100) / 1/12 to 4"):
– PFA lining for all applications in chemical, process and food industries; especially for high
process temperatures, for applications with temperature shocks and for applications with CIP
or SIP cleaning processes.
10.1.2 Function and system design
Measuring principle Electromagnetic flow measurement on the basis of Faraday's Law.
Measuring system The flow measuring system consists of the following components:
• Promag 55 transmitter
• Promag S sensor (DN 15 to 600 / ½ to 24")
• Promag H Sensor (DN 2 to 100 / 1/12 to 4")
Two versions are available:
• Compact version: Transmitter and sensor form a single mechanical unit.
• Remote version: Transmitter and sensor are installed separately.
10.1.3 Input
Measured variable • Flow rate (proportional to induced voltage)
• Conductivity (without temperature compensation)
Measuring range • Flow rate: Typical v = 0.01 to 10 m/s (0.03 to 33 ft/s) with the specified measuring accuracy
• Conductivity s = 5 to 2000 μS/cm
not for sensors without reference electrode (Promag H, Promag S with brush electrodes)
Operable flow range Over 1000 : 1
Input signal Status input (auxiliary input):
U = 3 to 30 V DC, R
i
= 3 k, galvanically isolated.
Switch level: ±3 to ±30 VDC, independent of polarity
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