PRF-912B & PRV-913V Miniature Concentric Ring Fixture Set
11
4. Select appropriate instrument test voltage and initiate resistance measurement. ESD
Association S11.11 test voltage guidelines for measuring packaging materials are as
follows:
a. For material resistance measurements of less than 1.0x10
4
ohms, use <10 volts.
b. For measurements of 1.0x10
4
to <1.0x10
6
ohms, use 10 volts.
c. For measurements greater than 1.0x10
6
ohms, use 100 volts
NOTE: For optimal performance and accuracy, use the Prostat PRS-801 Resistance
System in its AUTOMATIC Mode (either Default Mode 1 [Ohms], or Mode 2
[Exponential 1.0EXX/Ohms] display). AUTOMATIC Mode will control test voltage,
resistance range adjustment and electrification period automatically.
Measurement Illustrations
Using the PROSTAT PRF-
912B Fixture
Figure 11: Measuring Tape & Foil
Figure 10: Measuring Carrier Tape
Figure 13: Measuring Formed Tray
Figure 12: Measuring Device Tray
IMPORTANT NOTE:
Adjust probe pressure to insure that the
electrode springs
are
controlling the probe’s connection with the material’s surface and that the springs are
not fully compressed against their stops.
This will insure reproducible
measurements.
