3.4.2.
Cable Glands
The ACM500 stainless steel enclosure is designed to withstand wet and dusty environments. In
order to maintain the sealing integrity of the enclosure, care must be taken when installing cables
that enter the enclosure. To ensure a watertight and dust tight seal:
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Pass any cables through an appropriately sized cable grip before connecting the wires inside
the ACM500.
The intrinsically safe current loop interface cables and the fiber optic interface cable always
pass through the two cable glands "A" and "B" to the far left (Figure 3-5). Note that only
ATEX certified cable glands should be used on COM4 and COM5. Only the certified inserts
supplied with the ATEX glands can be used for securing cables. Do not use rubber sleeve
grommets with the ATEX certified glands.
A: COM4
B: COM5
When making a connection with fiber optic interface cable, a special split grommet (Figure
3-6) will be provided. Each of the two fiber cables fits into one of the two holes in the grommet.
Figure 3-6: Installing Fiber Optic Cables in Cable Grip
For all other ACM500 connections (Ethernet, serial, PLC), depending upon the diameter of the
cable used for a specific connection, a rubber sleeve grommet may be needed to properly seal
Figure 3-5: Cable Glands
METTLER TOLEDO ACM500 Installation Manual
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