Microprobe Dual Verification Fixture

Approximately 2 inches (50.1mm) square by 0.82 inches (21mm) thick, the PRV-913B is designed to confirm the proper function of the PRF-912B, PRF-914B AND PRF-922B Probe Sets.

It consists of a high quality black anodized housing and circuit board incorporating an array of ten (10) each 10 megohm precision (±1%) resisters in parallel, connecting the center pad to each of the ten pe-ripheral trace pads. It provides a specific reference resistance of 1.0x106 ohms (±5%) for the Concentric Ring side and 1.0x107 ohms (±5%) for the 2-Point side.

Properly used, the PRV-913B insures that all PRF-912B, PRF-914B & PRF-922B spring loaded test probes make defined contact with the reference surface. It has the capability of providing a 1-megohm (1.0x106 ohms) reference measurement with a theoretical maximum total variance of 9.5x105 to 1.05x106 ohms.

Typical reference measurements range from 1.01x106 to 1.03x106 ohms, i.e., equal to or less than ±3% error.