Electrical Connections
The Power Unit is connected to the mains single phase supply - check rating label for voltage.
The mains electrical supply must provide an earth. The Power Unit is rated at less than 30kV.
Positioning the Equipment
Power Unit
The Power Unit is IP54. It should be positioned in a dry, oil-free location where the controls and
connections are easy to access. It should be within the cable length from the Bar.
Bars
The best location is usually at, or immediately before, the area where static is causing the
problem - remember that static can be regenerated if the material passes over rollers or through
a process after neutralising. A static meter is useful to determine the best position.
Use the M4 x 20mm hexagon head screws to install the Bar - they slide in the groove in the
aluminium extrusion.
Except on a winding reel of material, the material to be neutralised should be in free air, not
touching another surface as it passes the bar. It is not possible to neutralise static electricity
where the material is touching another surface or roller. Position the bar 50mm from rollers or
the machine frame.
The emitter pins should face the material to be neutralised and be about 25mm from it for best
operation. At a distance of 100mm the performance is 25% of the performance at 25mm. The
bars must be dry and oil-free.
It is important that the emitter pins are not touching, or within 10mm of other metal objects, to
avoid spark erosion that will damage both the bar and the metal object.
If more than one Bar is used, they should not be positioned directly opposite each other, but
should be offset by at least 50mm.
Hi-flex cable is made to a high specification, but all HT cables must be treated carefully. Sharp
bends will damage the insulation and lead to breakdown. It is very important that cable ties
are not used to fix the cable (for example to an airpipe) and that the cable is not bent
more than 50mm diameter. See sketches below:
Summary:
• Emitters facing material.
• Bar >50mm from rollers or machine parts.
• Material in free air.
• Distance “A”: 25mm to 200mm. Closer is better.
• Distance “B” : if there are two bars, offset them >50mm
• Cable not bent more than 50mm diameter.
• Dry and Oil-free
Instructions/Booklet/1250 iss.5 5
50mm
