Endress+Hauser Levelflex FMP53 - Page 8

Levelflex FMP51/52/53/54/55/56/57 XA00644F-A
8 Endress+Hauser
Potential equalization
• Integrate the device into the local potential equalization.
• For grounding the screen → å 2.
XA00640Fxx02
å 2
A
Version 1
Use small capacitors (e.g. 1 nF, 1500 V, dielectric strength, ceramic).
Total capacitance connected to the screen may not exceed 10 nF.
B
Version 2
1 Terminating resistor
2 Distributor/T box
3 Screen insulated
4 Supply unit/Segment coupler
5 Potential equalization (secured in high degree)
6 Field device
Overvoltage protection
• For installations which require overvoltage protection to comply with national regulations or standards
(GB3836.13, GB3836.15, GB3836.16), install the device using overvoltage protection (e.g. HAW56x from
Endress+Hauser).
• Observe the safety instructions of the overvoltage protection.
221
C
6 6
4
A
B
3
4
5