Endress+Hauser HART Proline t-mass I 300 - Operating Module DKX001; Ensuring Potential Equalization; Requirements

Proline t-mass I 300 HART Electrical connection
Endress+Hauser 39
6.3.2 Connecting the remote display and operating module DKX001
The remote display and operating module DKX001 is available as an optional extra
→  159.
• The measuring device is always supplied with a dummy cover when the remote
display and operating module DKX001 is ordered directly with the measuring
device. Display or operation at the transmitter is not possible in this case.
• If ordered subsequently, the remote display and operating module DKX001 may not
be connected at the same time as the existing measuring device display module.
Only one display or operation unit may be connected to the transmitter at any one
time.
1
3
81
Vcc
82
Gnd
83
A
84
B
81
Vcc
82
Gnd
83
A
84
B
2
4
5
A0027518
1 Remote display and operating module DKX001
2 Protective earth (PE)
3 Connecting cable
4 Measuring device
5 Protective earth (PE)
6.4 Ensuring potential equalization
6.4.1 Requirements
For potential equalization:
• Pay attention to in-house grounding concepts
• Take account of operating conditions like the pipe material and grounding
• Connect the medium, sensor and transmitter to the same electrical potential
• Use a ground cable with a minimum cross-section of 6 mm
2
(0.0093 in
2
) for potential
matching connections