Technical Data; Technical Data At A Glance; Applications; Function And System Design - Endress+Hauser PROFI BUS Proline Promag 53 PROFIBUS DP Operating Manual

Technical data

Measuring principle
Measuring system
Measured variable
Measuring range
Operable flow range
Input signal
162
10 Technical data
10.1

Technical data at a glance

10.1.1

Applications

The measuring device described in this Operating Manual is to be used only for measuring the flow
rate of conductive liquids in closed pipes.
A minimum conductivity of 20 µS/cm is required for measuring demineralized water. Most liquids
can be metered, provided they have a minimum conductivity of 5 µS/cm, for example:
• acids, alkalis, pastes, mashes, pulps,
• drinking water, wastewater, sewage sludge,
• milk, beer, wine, mineral water, yogurt, molasses, etc.
Resulting from incorrect use or from use other than that designated, the operational safety of the
measuring devices can be suspended. The manufacturer accepts no liability for damages being
produced from this.
Liner specific applications:
• Promag W (DN 25 to 2000):
– Polyurethane lining for applications with cold water and for slightly abrasive fluids,
– Hard rubber lining for all applications with water (especially for drinking water).
• Promag P (DN 15 to 600):
– PTFE lining for standard applications in chemical and process industries,
– PFA lining for all applications in chemical and process industries; especially for high process
temperatures and applications with temperature shocks.
• Promag H (DN 2 to 100):
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

Electromagnetic flow measurement on the basis of Faraday's Law.
The flow measuring system consists of the following components:
• Promag 53 transmitter
• Promag W, Promag P or Promag H sensor
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 variables

Flow rate (proportional to induced voltage)
Typically v = 0.01 to 10 m/s with the specified measuring accuracy
Over 1000 : 1
Status input (auxiliary input):
U = 3 to 30 V DC, R = 3 kΩ, galvanically isolated.
i
Switch level: ±3 to ±30 VDC, independent of polarity
Proline Promag 53 PROFIBUS DP/PA
Endress+Hauser