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3.4.6.1 Installation
The Model 806B connects directly to the Control Unit of the Model
406D in the same manner as the Faraday Cage. The sensor head
is removed from the Faraday Cage by loosing the brass
thumbscrew that retains the sensor in the clamp. The sensor is
then plugged into the 3 banana plugs located on the top of the
Fixture as shown in Figure 3.4-6. The sensor viewing port must
be centered in the round opening on the bottom of the Fixture as
shown in Figure 3.4-7.
Secure the Sensor cable with the black cable clamp.
Unplug all the cables going to the Control Unit from the Faraday
Cage and plug the cables from the Model 806B into the
corresponding connectors.
Place the Model 806B on a metal plate and adjust the FULL
SCALE Adjust until the voltage on the SAMPLE CHARGE meter
corresponds to the HIGH VOLTAGE being applied.
The Model 806B cannot be used to test samples resting on a
conductive surface. The sample MUST be placed on an
insulated surface that is at least several inches (cm) away
from any conductive surfaces. Conductive objects near the
test set up will affect the electrostatic field and alter the
sample static decay time characteristics.
3.4.6-2 Sample Testing
The Model 806B is capable of testing the static decay
characteristics of planar material, powders and liquids. Static
decay times are specified for a nominal 3x5" (76x127mm). Larger
samples of the same material will exhibit longer decay times. This
Figure 3.4-7: Sensor alignment
NOTE
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