Products

Features

• Accurate Wide Range Resistance Measurements: 0.10 Ω to 1.00×10¹² Ω with overall nominal accuracy <±5%
• Variable Voltage 0.1 mv to 9.99 V for low resistance measurements
• Constant Test voltages 10V and 100V for specification measurements to meet ESD measurement standards
• Auto Resistance Range Control
• Auto Test Voltage Control
• 120 Data Point Memory

Wide Range. Accurate. Portable.

The PRS-812B is a wide range portable constant voltage resistance instrument designed for dedicated ESD Auditors and professionals. The PRS-812B is a cost effective choice for those ESD professionals who require outstanding accuracy and performance, but do not require data downloading. Like its big brother the PRS-801B, the PRS-812B has an outstanding performance combination of measurement speed, wide range and accuracy. Its constant test voltage system is extremely stable and consistent with lab level, bench top instruments.

Measurement Range

The PRS-812B’s accurate wide range of 0.10 to 1.00×10¹² ohms, offers exceptional flexibility in measurement applications. In effect, it is 3 instruments in one because it functions as:

1. A low resistance range instrument for measurements from 0.10 to 1.00×10⁴ ohms. Most competitive instruments do not measure accurately at or below 1.00×10³ ohms. Thus, the typical ESD practitioner must carry a DMM for low resistance checks of ground connections.
2. A wide range audit instrument that meets and exceeds requirements for ANSI/ESD S20.20 and TR53 periodic verification (audit) procedures from 1.00×10³ to 1.00×10¹¹ ohms. Measurement guidelines require accurate measurements from one decade below to one decade above the resistance requirements of a facility’s ESD program. The PRS-812B easily exceeds this requirement by as much as 2 decades, depending on program requirements.
3. Precision high resistance instrument for Packaging measurements to S541 Standards, for material and product testing, and acceptance verification. Few competitive instruments can measure accurately up to or beyond 1.00×10¹¹ ohms, while the PRS-812B comfortably measures up to 1.00×10¹² ohms.

Measurement Flexibility

Connect to Virtually any 2-wire Fixture or electrode configuration. The PRS-812B’s simple ¾ inch terminal spacing provides connectivity to a variety of electrodes and fixtures.

Measurement Speed: Electrification Period

Along with the PRS-801B, the PRS-812B is one of the fastest measurement instruments in today’s precision measurement market. Laboratory tests confirm the PRS-812B can measure from 0 to 1.0×10¹² ohms in 2.5 seconds. Its EP is automatically adjusted to insure a stable measurement is displayed.

Multiple Modes of Operation

The PRS-812B has Automatic, Manual and Auto-Manual operational modes, plus exponential display or standard numeric display in Ω, KΩ, MΩ, GΩ and TΩ. It’s easy to use and read. Measurements are summarized in decades using multiple LED’s from <10² to >10¹².