Float Tank Gauge LT11/12
40
Hauser
6
Maintenance
6.1
Before you start the maintenance
• Give special attention in handling flammable liquid. Give plenty of waiting time for the liquid to calm down
after the loading, then start the maintenance (refer to thetable below).
• Be sure to wear antistatic clothing, gloves, and shoes when working with flammable liquids in tanks.
• Follow the directions of the safety supervisor
• After removing a conster stopper, please start the maintanance.
The conster stopper is necessary parts only when sipping a gauge head. After finishing the maintenance,
you need not install it again.
Recommended standing time
Static Electricity Safety Guideline (National Institute of Industrial Safety)
Conster stopper
Conductivity of
charging material
(S/m)
or greater
Flammable liquid
(example)
Volume of charging material (m
3
)
10
-12
to 10
-8
10
-8
10
-14
to 10
-12
10
-14
or less
Acetic acid
Ethanol
Ethyl chloride
Methanol
Light oil
Vinyl acetate
Toluene
Benzene
Gasoline
Methyl cyclohexane
Carbon tetrachloride
10 or less
1 or less
2 or less
4 or less
10 or less
10 to 50
50 to 5000
5000 or greater
1 or less
1 or less
2 or less
3 or less
10 or less
30 or less
5 or less
60 or less
120 or less
10 or less
120 or less
240 or less
10m
3
50m
3
5000m
3
2.5m
2m
5m
3.6m
20m
17.84m
6 Maintenance
