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Idiomas disponibles
Idiomas disponibles
The float must be able to move freely over the whole range of movement and must not be restricted by
the tanks walls or by fittings in the tank.
Installation positions that are subject to turbulence impair the function and should always be avoided.
Process connection flange – Industrial range
For switches in the industrial range with flanges according to EN/DIN, ANSI etc., the seals
1)
necting studs
that are used must correspond to the industry standard for material, pressure class
and type of seal and must be tightened to the corresponding tightening torques.
1)
not a component of the supply
In case of uncertainty on any point, refer to the corresponding standard or consult the manufacturer.
Process connection flange – Standard range
For switches of the standard range PN 25 (360 psi), corresponding seals are supplied with the unit.
Minimum tightening torques and tightening sequence:
Flange
D
01/011
92 mm
2)
Data refer to lubricated studs
3)
High / low temperature application (graphit gasket)
Level switches incl. flange for high / low temperature applications may not be insulated.
Connection
1.
Loosen the cover screws, remove the protective plug from the cable entry and fit the cable gland.
2.
Insert the cable and connect the wires according to the connection diagram (see inside the hous-
ing cover and instructions). All terminal connections are self-opening.
3.
Connect the earth (inside the housing) and equipotential bonding (external, near to cable entry).
4.
First close the cover and then apply the supply voltage!
7.
Maintenance
Trimod Besta level switches must be periodically tested and cleaned, at least once annually.
Procedure:
1.
Before opening the housing, disconnect the supply voltage; electric shocks can be life threaten-
ing.
2.
Process vessels / float chambers must be brought to atmospheric pressure before work is carried
out and must be appropriately vented. If necessary, lower the fill level. If the switch is mounted in
www.trimodbesta.com
Seal
Garlock Blue-Gard® 3000
Kubo Graflex® SP 3211
Type
I..., IE9...,
2I..., 2IE9...,
5I..., 5IE9..., etc.
IN..., INE9...,
2IN..., 2INE9...,
5IN..., 5INE9..., etc.
II... (= I + IN),
5II... (= 5I... + 5IN...)
IIE9... (= IE9 + INE9),
5IIE9.... (= 5IE9 + 5INE9)
15 │ 46
Stud
Stud
Carbon
Stainless
Stahl
steel
2)
18 Nm
22 Nm
3)
Function
≤ 1,0 mA
≥ 2,2 mA
≥ 2,2 mA
≤ 1,0 mA
1)
and con-
2)
Connection diagram
LTB008X │ 2023/01
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