Connecting The Measuring Unit - Endress+Hauser Fieldbus Levelflex M FMP43 Operating Instructions Manual

Wiring
30
4.2

Connecting the measuring unit

Ground connection
It is necessary to make a good ground connection to the ground terminal on the outside of the
housing, in order to achieve EMC security.
Cable gland
Standard, Ex ia, IS Plastic M20x1.5
Ex em, Ex nA Metal M20x1.5
Terminals
for wire cross-sections of 0.5...2.5 mm
Cable entry
• Cable gland: M20x1.5 (only cable entry for Ex d)
• Cable entry: G ½ or ½ NPT
• Fieldbus Foundation 7/8" plug
Supply voltage
The following values are the voltages across the terminals directly at the instrument:
Type
standard
Ex ia (FISCO model)
Ex ia (Entity concept)
FOUNDATION Fieldbus
Supply voltage 9 V ... 32 V
Lift-off voltage 9 V
1) There may be additional restrictions for instruments with an explosion protection certificate. Refer to the notes in
the appropriate safety instructions (XA).
Current consumption
Nominal current 15 mA
≤ 15 mA
Starting current
Error current 0 mA
FISCO/FNICO conformal compliant
Polarity sensitive no
Levelflex M FMP43 with FOUNDATION Fieldbus
Type Clamping area
5...10 mm
7...10.5 mm
2
Terminal voltage
minimum
9 V
9 V
9 V
1)
maximum
32 V
17, 5 V
24 V
Endress+Hauser