Connection Data; Connecting The Measuring Device - Endress+Hauser Levelflex FMP51 Operating Instructions Manual

Electrical connection
7.2.2 Cable diameter and cross-section of the strands
Type of protection
• Standard
• Ex ia
• Ex ic
• Ex tD
• Ex nA
• FM approval
• CSA approval
7.2.3 Overvoltage protection
If the measuring device is used for level measurement in flammable liquids which requires the
use of overvoltage protection according to DIN EN 60079-14, standard for test procedures
60060-1 (10 kA, pulse 8/20 ms), overvoltage protection has to be ensured by one of the following
measures:
• Integrated overvoltage protection (in preparation);
Product structure: Feature 610 "Accessory mounted", option NA "Overvoltage protection".
• External overvoltage protection, e.g. Endress+Hauser's HAW562 or HAW569.
For detailed information please refer to the following documents:
• HAW562: TI01012K
• HAW569: TI01013K
7.3

Connection data

7.3.1 PROFIBUS PA
"Power supply; Output"
G: 2-wire; PROFIBUS PA, switch output
1) Feature 020 of the product structure
7.4

Connecting the measuring device

WARNING
Explosion hazard!
Comply with the relevant national standards.
►
Observe the specifications in the Safety Instructions (XA).
►
Only use the specified cable glands.
►
Check whether the supply voltage matches the specifications on the nameplate.
►
Before connecting the device: Switch the supply voltage off.
►
Before switching on the supply voltage: Connect the potential bonding line to the exterior
►
ground terminal.
34
Cable gland Admissible cable
diameter
Plastics M20x1,5 5 to 10 mm (0.2 to 0.39
in)
Metal M20x1.5 7 to 10 mm (0.28 to
0.39 in)
1)
Levelflex FMP51, FMP52, FMP54
Admissible cross-section of the
strands
2
0.5 to 2.5 mm
Terminal voltage
9 to 32 V
DC
(20 to 14 AWG)
Endress+Hauser