Smiths detection eqo, Operating Instructions Manual

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Annex A
Annex A
Daily Test Procedure
After starting eqo each morning, the operator is advised to perform
a test card scan. This is done using a specifically designed test card
(see Fig. 86). The card is manufactured from a plastic material
which is transparent to millimetre waves. Metal strips of different
widths are attached to the surface of the card. The number next to
each section signifies the width of each strip in that section and the
gap between adjacent metal strips.
During the test the operator holds the card vertically in front of the
system (i.e. in the orientation shown in Fig. 86), in the centre of the
scan volume (this is identified by the centre of the symbol on the
floor mat), at a height of approx. 1.5 m from the floor to the top of
the test card.
It is expected that at the centre of the scan volume, a properly set-
up system will be able to resolve lines (horizontal or vertical) of
6mm width. The results of the test will be different depending on
the distance from the panel and the location in the scanned
volume. Moving the test card closer to the panel should result in
the resolution of lines down to 4mm.
Important!
The card may need to be rotated in the vertical plane
(max. 10 degrees) to achieve optimum results.
The test procedure is as follows:
Start the system according to the procedure outlined in the op-
erator manual.
Allow the system to run for a minimum of 5 minutes after log on
- make sure there are no objects in the scan volume during this
time.
Rotate or tilt the card to achieve best image, as described
above.
Review the image after the test using and keys.
Make sure the number of lines on the image corresponds to the
number of lines in the test card.
Watch out for blurring or double lines in the image.
95591706 11/02/2010 © smiths detection proprietary information
Fig. 86: Test card
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