WIKA FLM - Handbuch (Seite 12)

GB
When using a float made of titanium in areas exposed to
danger of explosion of category 1/2, please make sure,
during installation and operation, that the said float will
generate no sparks caused by friction or shock.
Maximum lengths of guide tubes
Depending on the length and design of the guide tube, the
level sensor must be fixed to the container bottom
(see table).
12 WIKA operating instructions level sensor model FFG
13445627.01 12/2010 GB/D/F
4. Montage
Guide tube Max. guide tube length L
Version A Version B
12 x 1 mm 660 3500
16 x 1 mm 1270 6000
17.2 x 1.6 mm 2100 6000
18 x 1.5 mm 3000 6000
Version A: Fixed to the tank ceiling Version B: Fixed to the tank ceiling
and floor
L... L...