Endress+Hauser Waterpilot FMX11, Руководство по эксплуатации

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Waterpilot FMX11 Operation options
Hauser 17
6.2.6 Overvoltage protection
To protect the Waterpilot from large interference voltage peaks, Hauser
recommends installing overvoltage protection upstream and downstream of the display
and/or evaluation unit.
• Integrated overvoltage protection to EN 61000-4-5 (2 kV asymmetrical)
• Install overvoltage protection ≥ 1.0 kV, external if necessary
4
2 3 2
1
A0040871
1 Waterpilot FMX11
2 Overvoltage protection (OVP), e.g., HAW from Hauser
3 Power supply, display and evaluation unit with one input for 4 to 20 mA
4 Power supply
6.3 Post-connection check
• Are the device or cables free from damage (visual check)?
• Do the cables comply with the requirements?
• Do the cables have adequate strain relief?
• Are all the cable glands installed, tightened and sealed?
• Does the supply voltage match the information on the nameplate?
• Is the terminal assignment correct?
7 Operation options
Hauser offers comprehensive measuring point solutions with display and/or
evaluation units for the Waterpilot FMX11.
Your Hauser service organization would be glad to be of service if you have
any other questions. Contact addresses are available at: www.endress.com/worldwide
8 Diagnostics and troubleshooting
8.1 General troubleshooting
8.1.1 Device does not respond
• Does the supply voltage match that specified on the nameplate?
Apply correct voltage
• Is the polarity of the supply voltage wrong?
Correct the polarity
• Are the connecting cables in contact with the terminals?
Ensure electrical contact between the cable and the terminal
8.1.2 Output current < 3.6 mA
• Is the signal line wired correctly?
Check wiring
• Is the electronics unit defective?
Replace electronics