KEYENCE SJ-F100W/100/010 - Manual (Page 19)

2-1
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Chapter 2Connection and Installation?
2-1
Before Installation
This section describes the static elimination performance of the SJ-F100W/100/010.
Before you install the SJ-F100W/100/010, fully calculate the distance between the Static Elimination
Blower Unit up to the target object and the time required for static elimination.
About Static Elimination Performance
The following shows a typical example where static is eliminated from an aluminum plate (20 pF) 150 x
150 mm square charged to +1000 V by the SJ-F100W/100/010 with the fan speed set to maximum
(FAST).
„ Static elimination area
The following graph shows the relationship between the time required for eliminating static from a target
object charged between +1000 to +100 V and the distance from the charged object to the Static
Elimination Blower Unit.
„ Static elimination time
The following graph shows the relationship between the change in charged voltage and the time when
static is eliminated from an object charged to +1000 V installed 100 mm away from the Static Elimination
Blower Unit at maximum (FAST) fan speed.
200 mm
200 mm
0
SJ-F010
0 200 300 100 400 500 600 mm
4 Sec
5 Sec
1 Sec 2 Sec 3 Sec
0 1 2 3 4
Static elimination time [Sec]
0
0.2
–0.2
0.4
0.6
0.8
1.0
1.2
Charge voltage [kV]