Endress+Hauser Proline Promag W 800 - Ensuring Potential Equalization

Electrical connection Proline Promag W 800
54 Endress+Hauser
T 20
3.
4.
5.
6.
10 (0.4)
2.
1.
4 x
1
2
L+/L
L-/N
26
27
24
25
22
23
20
21
A0044281
 13 Connecting the supply voltage
1. Loosen the 4 fixing screws on the housing cover.
2. Open the housing cover.
3. Push the cable through the cable entry. To ensure tight sealing, do not remove the
sealing ring from the cable entry.
4. Strip the cable and cable ends. In the case of stranded cables, also fit ferrules .
→  49
5. Connect the cable according to the terminal assignment . For supply voltage: open
the shock protection cover.
6. Firmly tighten the cable glands.
Reassembling the transmitter
1. Close the shock protection cover.
2. Close the housing cover.
3.
L
WARNING
Housing degree of protection may be voided due to insufficient sealing of the
housing.
‣
Screw in the screw without using any lubricant.
Tighten the 4 fixing screws on the housing cover.
7.3.3 Ensuring potential equalization
Introduction
Correct potential equalization (equipotential bonding) is a prerequisite for stable and
reliable flow measurement. Inadequate or incorrect potential equalization can result in
device failure and present a safety hazard.