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WIKA operating instructions level sensor model FFG

13445627.01 12/2010 GB/D/F

DANGER!

Work in containers involves the danger of intoxication and

suocation. No work is allowed to be carried out unless by

taking suitable personal protective measures (e.g. respirato-

ry protection apparatus, protective outt etc.).

Danger of explosion

Inside the container, there is danger of an explosive atmos-

phere. Corresponding measures for preventing sparking

should be taken. No work is allowed in this area unless by

technically skilled sta in accordance with applicable safety

regulations.

2. Description of functions and design

The WIKA model FFG level sensor acts as a measured value transmitter

for high-accuracy, continuous level measurement of liquids and is

based on identifying the position of a magnetic oat following the

magnetostrictive measuring principle.

The design of the level sensor system is shown in gure 1 in the form

of embodiment furnished with a screwed-in element. Provided in the

probe head (1) is the area of connection and adjustment protected by

lid (2). The electrical connection is via an M16x1.5 cable gland (3) at

the top of the probe head while the earth connection (4) is at the bottom

of the probe head. Seated on the probe tube (5) for vertically adjustable

assembling purposes, within the container, is a compression tting (6)

(G 1/2, W 27) or a ange (not shown). The oat (7) serves for conti-

nuously gauging the product level or interface layer, and is held on the

probe tube by a guiding or locking ring (8) etc.

1. Safety information / 2. Description of functions ...

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Wika FLM Manual de usuario Pagina 6