
PRF-922B, PRF-922A-B & PRV-913B Two-Point Miniature Concentric Ring Fixture Set
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3. Once the cable and BNC adapter are installed the PRF-922B is ready for continuity
test, verification and use (Fig 4).
4. To use, connect dual banana converter to wide range, resistance instrument with ¾
inch terminal spacing. Flange side of dual banana should be connected to the
Positive (+) power terminal.
B. Confirming Proper BNC Connections, Continuity & High Resistance Tests
The following confirms proper connections by checking continuity of the micro probe against
a metal plate, and then confirms its ability to measure high resistance.
1. To confirm general setup and function of the PRF-922B, place the electrodes
against a clean metal surface. For example, the plated metal side of the Prostat
PTB-920, Dual Surface Test Bed.
a. Hold the PRF-922B vertically, and apply pressure to slightly compress the
electrodes, making positive contact with the metal surface.
b. Activate the wide range, resistance instrument to obtain a measurement.
(1) In the case where the Prostat PRS-801 is the measurement instrument, it should
measure approximately 1.0 ohm, or less.
(2) With other instruments, they should provide a LOW resistance indication. For
example, <103 ohms when using the Prostat PSI-870 Resistance Indicator, or
<104ohms when using the Prostat PRS-800 analog Megohmmeter.
2. Repeat the above procedure using the clean insulated surface (Black, labeled
side) of the PTB-920, or an insulated acrylic plate.
a. Hold the PRF-922B vertically, and apply pressure to compress the electrodes,
making positive contact with the insulated surface.
b. Activate the wide range, resistance instrument to obtain a measurement.
(1) In the case where the Prostat PRS-801 is the measurement instrument, it should
measure 1.0x1012 ohms, or greater.
(2) With other instruments, they should provide a HIGH resistance indication. For
example, 1012 or >1012 ohms when using the Prostat PSI-870 Resistance
Indicator, or approximately 1011 ohms when using the Prostat PRS-800 analog
Megohmmeter.
NOTE: To remove BNC connections, apply slight
pressure and twist connector counter clockwise.