Levelflex FMP51, FMP52, FMP54
34 Endress+Hauser
FOUNDATION Fieldbus
Device basic current 15 mA
Error current FDE (Fault
Disconnection Electronic)
0 mA
FISCO
U
i
17.5 V
I
i
550 mA
P
i
5.5 W
C
i
5 nF
L
i
10 μH
Power supply failure
• Configuration is retained in the HistoROM (EEPROM).
• Error messages (incl. value of operated hours counter) are stored.
Potential equalization
No special measures for potential equalization are required.
If the device is designed for hazardous areas, observe the information in the documentation
"Safety Instructions" (XA, ZD).
Terminals
• Without integrated overvoltage protection
Plug-in spring terminals for wire cross-sections 0.5 to 2.5 mm
2
(20 to 14 AWG)
• With integrated overvoltage protection
Screw terminals for wire cross-sections 0.2 to 2.5 mm
2
(24 to 14 AWG)
Cable entries Connection of power supply and signal line
To be selected in feature 050 "Electrical connection"
• Gland M20; Material dependent on the approval:
– For Non-Ex, ATEX, IECEx, NEPSI Ex ia/ic:
Plastics M20x1.5 for cable 5 to 10 mm (0.2 to 0.39 in)
– For Dust-Ex, FM IS, CSA IS, CSA GP, Ex nA:
Metal M20x1.5 for cable 7 to 10 mm (0.28 to 0.39 in)
4)
– For Ex d:
No gland available
• Thread
– ½" NPT
– G ½"
– M20 × 1.5
• Plug M12 / Plug 7/8"
Only available for Non-Ex, Ex ic, Ex ia
Connection of remote display FHX50
Dependent on feature 030: "Display, Operation":
• "Prepared for display FHX50 + M12 connection":
M12 socket
• "Prepared for display FHX50 + custom connection":
Thread M16
Cable specification
• Minimum cross-section: dependent on terminals → 34
• For ambient temperature T
U
≥60 °C (140 °F): use cable for temperature T
U
+20 K.
4) The material of the gland is dependent on the housing type; GT18 (stainless steel housing): 316L (1.4404); GT19 (plastic housing) and GT20
(aluminum housing): nickel-coated brass (CuZn).
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