Electrical connection Proline Prosonic Flow P 500 HART
46 Endress+Hauser
7 Electrical connection
L
WARNING
Live parts! Incorrect work performed on the electrical connections can result in an
electric shock.
‣
Set up a disconnecting device (switch or power-circuit breaker) to easily disconnect the
device from the supply voltage.
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In addition to the device fuse, include an overcurrent protection unit with max. 10 A in
the plant installation.
7.1 Electrical safety
In accordance with applicable national regulations.
7.2 Connecting requirements
7.2.1 Required tools
• For cable entries: use appropriate tool
• For securing clamp: Allen key 3 mm
• Wire stripper
• When using stranded cables: crimper for wire end ferrule
• For removing cables from terminal: flat blade screwdriver ≤ 3 mm (0.12 in)
7.2.2 Requirements for connection cable
The connecting cables provided by the customer must fulfill the following requirements.
Protective grounding cable for the outer ground terminal
Conductor cross-section < 2.1 mm
2
(14 AWG)
The use of a cable lug enables the connection of larger cross-sections.
The grounding impedance must be less than 2 Ω.
Permitted temperature range
• The installation guidelines that apply in the country of installation must be observed.
• The cables must be suitable for the minimum and maximum temperatures to be
expected.
Power supply cable (incl. conductor for the inner ground terminal)
Standard installation cable is sufficient.
Signal cable
Current output 4 to 20 mA HART
A shielded cable is recommended. Observe grounding concept of the plant.
Current output 0/4 to 20 mA
Standard installation cable is sufficient
Pulse /frequency /switch output
Standard installation cable is sufficient
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