ABB TTF200 Operating Instructions Manual page 8

8 TTF200 FIELD-MOUNT TEMPERATURE TRANSMITTER | OI/TTF200-EN REV. B
... 2 Use in potentially explosive atmospheres in accordance with
ATEX and IECEx
Installation instructions for cable glands
The sealing rings of the cable glands harden at low
temperatures. Before installation, bring the sealing rings to a
temperature of at least 20 °C for 24 hours. Before inserting the
sealing rings and fixing them onto the cable gland, knead the
rings to ensure they are soft and flexible.
IP rating IP66 / 67 is only achieved by installing the black
neoprene sealing ring between the cable gland and the housing
and by observing the tightening torque of 3.6 Nm (Figure 2,
item ).
2
Cables must be protected against extreme mechanical loads
(caused by tension, torsion, crushing, and so on). Even under
operating conditions, it must be ensured that the cable entry
remains hermetically sealed. The customer must provide a strain
relief device for the cable.
B
A
A 40 mm
B 12 mm
Figure 1: Stripping the connection cable
1. Check that cable used is suitable (i.e., check the mechanical
resilience, temperature range, creep resistance, resistance to
chemicals, outside diameter, and so on).
2. Strip the cable in accordance with Figure 1.
3. Check the outer sleeve for damage and soiling.
4. Insert the cable in the cable gland.
1
Figure 2: Tighten cable glands
5. Tighten the cable gland until the cable is firmly enclosed by
the sealing ring (Figure 2, item
1.5--times of the specified torque on the housing (see
assembly instructions for cable gland)!
Ø C
A10229
C Ø 8.5 / 12 mm
2
A10230
). Do not tighten more than
1
Maintenance
Check the cable glands during each maintenance session. If the
cable is slack, retighten the cap(s) of the cable glands.
If it is not possible to retighten them, the cable gland will need
to be replaced.
M20 × 1.5 plastic cable gland for various types of protection
The optionally supplied M20 × 1.5 plastic cable gland has a
limited temperature range. The permissible ambient
temperature range of the cable gland is −20 to 80 °C
(−4 to 176 °F). When using the cable gland, make sure that the
ambient temperature is within this range.
The cable gland must be installed in the housing with a
tightening torque of 3.8 Nm. On the cable side, when installing
the connection of the cable gland and cable, check for integrity
to ensure that the required IP rating is met.