Cable Glands - Mettler Toledo IND246 Guia De Instalacion

2.4.2.

Cable Glands

The IND246 terminal is designed to withstand severe washdown environments. However, care
must be taken when installing cables and/or connectors that enter the terminal enclosure. To ensure
a watertight seal:
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Before connecting wires, pass the cables through an appropriately sized cable gland. Figure
2-16 shows a cable gland with its clamping nut removed.
Depending upon the diameter of the cable to be installed, select one of the rubber grommets (if
required) to properly seal around the cable.
Grommet M12 Gland
None 3–6.5 mm
Small grommet
1 hole -USB
1 hole - Ethernet
2 hole grommet
When making cable terminations inside the harsh enclosure, ensure that the cable length from
the terminal strip/connector to the terminal housing is sufficient so that no strain is placed on
the connector assembly when the front panel is in the fully open position.
After making the wiring connections as described in the next section, ensure the nut on the
cable gland is tightened properly to seal around the cable. Ensure that this seal is watertight.
Cable shielding should be grounded to the inside of the IND246's enclosure as close as
possible to the entry point. Ground studs are provided on the interior of the enclosure for this
purpose.
METTLER TOLEDO IND246 and IND246 POWERCELL Installation Manual
Figure 2-16: Cable Gland
Table 2-1: Grommet Cable Sizes
Cable Diameter
M16 Gland
5–10 mm
– 4.5–6.8 mm
– –
– –
– –
M25 Gland
13–18 mm
–
3.2–5 mm
5.4-7.8mm
3.2–5 mm and 4-6mm
2-11