Proservo NMS5
Hauser
5
1.5
Electrostatic Charge
Mounting with a stilling well is recommended for use in a tank which contains flammable liquid with conduc-
tivity at 10
-8
S/m or less.
In case of installation without a stilling well, allow enough stilling time according to the table below before
lowering the level gauge down to the liquid surface. When a stilling well is used, the stilling time is shown as
in column “<10” in the table below.
conductivity
(S/cm)
Reference: Stilling Time (min.)
Liquid Volume in Tank (m
3
)
≤
10
10~50
50~100
≥
5000
≥
10
-8
≥
1
≥
1
≥
1
≥
2
10
-12
~10
-8
≥
2
≥
3
≥
10
≥
30
10
-14
~10
-12
≥
4
≥
5
≥
60
≥
120
≤
10
-14
≥
10
≥
10
≥
120
≥
240
(Japan National Institute of Occupational Safety and Health)
1 Safety Instructions
