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Operating Manual
MHM-97877
Ensure a transition resistance of <10
equalization.
5.3
Connection requirements
The wire cross section of the used cables must be within the range of 0.34 < F < 2.5 mm
Use ferrules at stranded conductors.
Connect the shield of the Ethernet cable to ground at the remote station. If this is not
possible, ground the shield using a shield clamp within the field housing. Integrate the
grounding of all cable shields into the potential equalization system.
All used connectors (Ethernet, D-Sub, and the power supply terminals XR1 and XR2) must
be locked. Only use the USB port of the A6500-CC Com Card and the SMB sockets "Sensor
Signal 1" and "Sensor Signal 2" of the A6500-UM Universal Measurement Card at open field
housing, which requires a hazard-free environment. It is not permitted to use other
bridges than the provided bridges on the connectors for the supply XR1 and XR2. See red
markings on
Figure 5-3: Permitted bridge – A6500-SR and A6500-RR
Figure 5-4: Permitted bridge – A6500-FR
You must connect the terminals of all live cables.
5.4
CSA - Special conditions of safe use
1. The modular rack based system AMS 6500 ATG shall be installed completely inside
MHM-97877, Rev. 5.07
Figure 5-3
and
Figure
an additional enclosure, providing a degree of protection of not less than IP 54
according to CSA/UL 60079-0 and CSA/UL 60079-7.
Ambient
The ambient temperature within the end use enclosure shall
temperature –
not exceed 55 °C.
A6500-SR and
The ambient temperature within the end use enclosure shall
A6500-RR
not exceed 70 °C if a fan tray with three fans and a minimum
airflow volume of at least 440 m
the bottom side of the rack.
Hazardous location installation
9
Ω between frame of the system rack and potential
5-4.
June 2023
3
/h is mounted directly on
2
.
89
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