Prostat PRF-914B, Руководство пользователя

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10 Rev. A / November 2005
PRF-914B High Resistance Miniature Concentric Ring Fixture Set
2. Remove PRF-912B Probe Cover (Figure 8).
3. Position PRF-914B vertically into the PRV-913B Verifier with
its spring loaded pin electrodes making direct contact with
the Verifier’s gold plated test segments.
4. Depending on your resistance instrument select either 10V
or 100V test voltage.
5. Measure PRF-914B probe resistance while positioned in the
PRV-913B Verifier. Resistance should be 1.0x10
6
ohms ±5%.
D. Basic Measurements Using the PRF-914B Micro Probe
1. Place material to be measured on an insulated test
bed, the clean insulated surface (Black, labeled
side) of the PTB-920, or an insulated acrylic plate.
2. Position the PRF-914B vertically directly over test
area and lower it until the spring loaded center
electrode makes direct contact with the material
under test.
3. Apply sufficient pressure on the probe until the
center and outer spring loaded electrode are
partially compressed while in contact with the test
material.
4. Select appropriate instrument test voltage and
initiate resistance measurement. ESD Association
S11.11 test voltage guidelines for measuring pack -
aging 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.
IMPORTANT NOTE
Adjust probe pressure to insure that the electrode springs are controlling the probe’s con -
nection with the material’s surface and that the springs are not fully compressed against
their stops. This will insure reproducible measurements.
Figure 9: Remove Probe Cover
Figure 10: Insert PRF-914B Fixture into PRV-
913B Verifier and Measure Verifier Resis -
tance.