Deltapilot M FMB50/51/52/53
Endress+Hauser 17
Power supply
Electrical connection Note!
• When using the measuring device in hazardous areas, installation must comply with the corresponding
national standards and regulations and the Safety Instructions or Installation or Control Drawings. → ä 66
ff, "Safety Instructions" and "Installation/Control Drawings" sections.
• According to IEC/EN61010 a suitable disconnector has to be installed for the device
• HART: Overvoltage protection HAW569-DA2B for the non-hazardous area, ATEX II 2 (1) Ex ia IIC and IEC
Ex ia can be ordered as an option (see "Ordering information" section).
• Protective circuits against reverse polarity, HF influences and overvoltage peaks are installed.
• The digital communication signal is transmitted to the bus via a 2-wire connection. The bus also provides
the power supply.
P01-xMx5xxxx-04-xx-xx-xx-004
Electrical connection
1 External grounding terminal
2 Internal grounding terminal
3 Supply voltage → ä 20
4 4...20 mA for HART devices
5 For HART and FOUNDATION Fieldbus devices: With a handheld terminal, all the parameters can be configured
anywhere along the bus line via menu operation.
6 Terminals
7 For HART devices: test terminals, see section "Taking 4 to 20 mA test signal"
4 to 20 mA HART
Taking 4 to 20 mA test signal
A 4 to 20 mA test signal may be measured via the test terminals without interrupting the measurement.
PROFIBUS PA
For further information on the network structure and grounding, and for further bus system components such
as bus cables, see the relevant documentation, e.g. Operating Instructions BA00034S "PROFIBUS DP/PA:
Guidelines for planning and commissioning" and the PNO Guideline.
Cable specifications:
Use a twisted, shielded two-wire cable, preferably cable type A
Note!
For further information on the cable specifications, see Operating Instructions BA00034S
"PROFIBUS DP/PA: Guidelines for planning and commissioning", the PNO Guideline 2.092
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