PRF-922B Miniature Two-Point Probe Set

The PRF-922B Miniature Two Point probe accurately measures point-to-point resistance of small areas. Like Prostat's PRF-912B Miniature Concentric Ring, the PRF-922B is capable of measurements up to 1.0x10¹² ohms. Built-in distance stops provide consistent electrode to sample pressure for developing repeatable measurements. Use the PRF-922B to measure small material samples, hard to assess molded areas, edges of parts, tray or tape cells and other very small objects and surfaces. The assembly is supplied with replaceable conductive electrode covers to enhance contact resistance on irregular surfaces and composition materials. Thus, measurements may be made with either the gold plated electrode contacts, or via conductive rubber covers.

The PRF-922B is designed to be used with a precision, wide range resistance instrument, such as the Prostat PRS-801 Resistance System, and an insulated test bed. When used with the supplied conductive rubber boots, it provides point-to-point resistance measurements in accordance with ANSI/ESD STM11.13.

Range:
0.9 – 1.0x10¹² Ohms (1.0E+12)

Dimensions:
Length: 7.0 inches (178 mm) without probe cover. 7.70 inches (195mm) with probe cover. Probe diameter 0.5 inches (12.7mm). Probe cover outer diameter 0.63 inches (16mm).

Probe Weight:
2.0 ounces (58 grams)

Finish:
Black

Dielectric Material:
Black Delran

Contact Size:
Electronic quality gold plated contact probes: 0.1-inch (2.54mm) diameter.
Conductive synthetic rubber contact boots: 0.125-inch (3.18mm) diameter.
Probes center-to-center spacing: 0.250 inch (6.35mm)

Min. Sample:
0.32 inches (8.2mm) diameter

Probe Spring:
Force/Test 1.5 pounds (0.68 kg)

Probe Travel:
0.25 inches (6.4mm) Self-limited.

Connection:
BNC with outer source and inner sense connections

Cable:
RG-174 coaxial cable equipped with insulated BNC couplers, and BNC/Banana adapter for connection to PROSTAT PRS-801 Instrument

Power:
Not applicable. Fixture powered by resistance instrument.