Maintenance; Maintenance Work - Endress+Hauser Float level gauge LT5 Operating Instructions Manual

Maintenance

80
9 Maintenance
9.1

Maintenance work

9.1.1 Before performing maintenance
• Exercise due caution when working with flammable liquid tanks. Allow flammable
liquids plenty of time to diffuse before performing maintenance (see table below).
• When working with flammable liquid tanks, wear anti-static clothing, safety shoes
and gloves.
• Perform maintenance in the presence of a safety supervisor.
Conductivity Flammable
of charging liquid
material (example)
(S/m)
-8
10 or higher Acetic acid
Ethanol
Ethyl chloride
Methanol
Light oil
10 to 10 -8 Vinyl acetate
-12
Toluene
Benzene
Gasoline
-14 -12
10 to 10 Methyl
cyclohexane
10 -14 or lower Carbon
tetrachloride
Volume of charging material (m3)
10 or less 10 to 50
1 minute or longer 1 minute or longer
2 minutes or longer 3 minutes or longer
4 minutes or longer 5 minutes or longer
10 minutes or longer 10 minutes or longer
50 m³
10 m³
3.6
(11.81)
2.5
(8.2)
Unit of
measurement mm (in)
Unit of
measurement mm (in)
Float level gauge LT5
50 to 5000 5000 or
more
1 minute or 1 minute or
longer longer
10 minutes 30 minutes
or longer or longer
60 minutes 120
or longer minutes or
longer
120 240
minutes or minutes or
longer longer
5000 m³
17.84
(58.53)
Unit of
measurement mm (in)
Endress+Hauser