Wiring
Levelflex M FMP43 with PROFIBUS PA
30
Hauser
4.3
Recommended connection
For maximum EMC protection please observe the following points:
• The external ground terminal on the transmitter must be connected to ground.
• The continuity of the cable screening between tapping points must be ensured.
• If potential equalisation is present between the individual grounding points, ground the screening
at each cable end or connect it to the device housing (as short as possible).
• If there are large differences in potential between grounding points, the grounding should run via
a capacitor that is suitable for high frequency use (e.g. ceramic 10 nF/250 V
&
).
"
Caution!
Applications, which are subject to the explosion prevention, permit only under special conditions
the repeated grounding of the protective screen , see to EN 60 079-14..
4.4
Degree of protection
• With closed housing tested according to:
– Housing F12/T12: IP68, NEMA6P (24 h at 1.83 m under water)
– Housing F23: IP69K in combination with cable entries M20 G ½ and NPT ½
– IP66, NEMA4X
• With open housing: IP20, NEMA1 (also degree of protection of the display)
Caution!
The IP68 NEMA6P degree of protection applies for M12 PROFIBUS PA connectors only when the
PROFIBUS cable is plugged in.
4.5
Post-connection check
After wiring the measuring device, perform the following checks:
• Is the terminal assignment correct (
26 and
27)?
• Is the cable gland tight?
• Is the M12 connector screwed tight?
• Is the housing cover screwed tight?
• If power is supplied:
Is the device ready for operation and is the LCD display lit?
Summary of Contents for Levelflex M FMP43
Page 4: ...Brief overview Levelflex M FMP43 with PROFIBUS PA 4 Endress Hauser...
Page 104: ...Appendix Levelflex M FMP43 with PROFIBUS PA 104 Endress Hauser...
Page 106: ...Levelflex M FMP43 with PROFIBUS PA Index 106 Endress Hauser...
Page 108: ...www endress com worldwide BA358F 00 en 07 07 No 71041163 CCS FM SGML 6 0 ProMoDo 71041163...
