D
R
A
F
T
Micropilot FMR53, FMR54
28
V. 1, Rev. 7, 26-10-2012
Hauser
FOUNDATION Fieldbus (in preparation)
Device basic current
14 mA
Error current FDE (Fault
Disconnection Electronic)
0 mA
FISCO (in preparation)
U
i
17.5 V
I
i
550 mA
P
i
5.5 W
C
i
5 nF
L
i
10
m
H
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
• Cable gland (not for Ex d):
– Plastics M20x1.5 for cable
Æ
5 to 10 mm (0.2 to 0.39 in): non-Ex, ATEX/IECEx/NEPSI Ex ia/ic
– Metal M20x1.5 for cable
Æ
7 to 10 mm (0.28 to 0.39 in): dust-Ex, FM IS, CSA IS, CSA GP, Ex nA
• Thread for cable entry:
– ½" NPT
– G ½"
– M20 × 1.5
• Connector (only for non-Ex, Ex ic, Ex ia): M12 or 7/8"
Cable specification
• Standard device cable is sufficient for the power supply of the device.
• Minimum cross-section: (
®
ä
28)
• For ambient temperature T
U
³
60 °C (140 °F): use cable for temperature T
U
+20 K.
HART
• A normal device cable suffices if only the analog signal is used.
• A shielded cable is recommended if using the HART protocol. Observe grounding concept of the plant.
PROFIBUS (in preparation)
Use a twisted, screened two-wire cable, preferably cable type A.
For further information on the cable specifications, see Operating Instructions BA00034S "Guidelines
for planning and commissioning PROFIBUS DP/PA", PNO Guideline 2.092 "PROFIBUS PA User and
Installation Guideline" and IEC61158-2 (MBP).
FOUNDATION Fieldbus (in preparation)
Hauser recommends using twisted, shielded two-wire cables.
For further information on the cable specifications, see Operating Instructions BA00013S
"FOUNDATION Fieldbus Overview", FOUNDATION Fieldbus Guideline and IEC 61158-2 (MBP).
