Prostat PRF-914B, User Manual

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.