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Prostat PRF-912B User Manual

Miniature resistance probes
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USER MANUAL
MINIATURE RESISTANCE PROBES
PRF-912B
PRF-922B
PRV-913B

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Summary of Contents for Prostat PRF-912B

  • Page 1 USER MANUAL MINIATURE RESISTANCE PROBES PRF-912B PRF-922B PRV-913B...

  • Page 3: Table Of Contents

    Confirming Proper BNC Connections, Continuity & High Resistance Tests Probe Verification using the PRV-913B Verification Fixture Basic Measurements Using the Probe Stopper with the PRF-912B ONE-POINT MEASUREMENT Using the PRF-922B as a One-Point Probe Material & Device Measurements with One-Point Probe...

  • Page 4: Important Safety Information

     To avoid electric shock, never touch the inside of this apparatus. Only a qualified technician should open this apparatus.  Do not drop or strike the product. If the product is damaged, contact a Prostat Authorized Service Center.  This equipment is intended for use in electrostatic processes that are free from water, oil, solvent and other conductive contaminants.

  • Page 5: Introduction

    The PRF-912B is designed in miniature to approximate surface resistance measurements typically obtained with the ANSI/ESD STM11.11 Surface Resistance Standard fixture. The PRF-912B, however, is approximately 1/10th the size of the ANSI/ESD STM11.11 fixture. Based on its size the PRF-912B is often referred to as a Miniature Concentric Ring.
  • Page 6 Miniature Probe Contents Table 1 is a list of the items included with your Probe. Part No. Description PRF-912B PRF-922B   Miniature Resistance Probe   PRF-900L Connection Cable   PRF-900C Probe Protective Cap   MR-001 Rubber Adapter Boots ...

  • Page 7: General Description

    Copper coated with 60 microinches of hard Gold. 1. The PRF-912B’s center electrode is electrically separated from the outer ring contacts by a high resistance dielectric (Teflon). The center electrode acts as a current sensor during resistance measurements.

  • Page 8: Prf-922B Miniature Two-Point Probe

    ANSI/ESD S11.11 concentric ring fixture. 6. Overall size of the PRF-912B is 0.50 inches in diameter by 5.9 inches (150 mm) long (Figure 1). This optimal size and shape make the fixture very comfortable and easy to handle. Its outer housing is made of black anodized aluminum.

  • Page 9: Use Of Measurement Power Supply

    3. Overall size of the PRF-922B is 0.50 inches in diameter by 6.75 inches (171 mm) long (Figure 2). This optimal size and shape make the fixture very comfortable and easy to handle. Its outer housing is made of black anodized aluminum. Overall Length without covers: 6.75 Inches (171 mm) Figure 2.

  • Page 10: Other Operational Precautions

    9. Do Not Drop or cause mechanical damage to these devices. 03 CONNECTION AND OPERATION Both the PRF-912B and PRF-922B use the same connection cable to connect the probe to a resistance meter. Below describes how to connect your probe to a PRS-801B Resistance Meter using the PRF- 900L, included with your probe.

  • Page 11: Confirming Proper Bnc Connections, Continuity

    2. Once the cable is installed, the probe is ready for continuity test, verification and use. Figure 3. Attach lead’s BNC to the probe’s BNC’s Figure 4. Probe with PRF-900L attached. 3. To use, insert the black and red inputs of the PRF-900L Lead to the PRS-801B, PRS-812B or PAS-853B resistance meter.
  • Page 12 10 outer ring electrodes. 2. Remove the cover from the probe (Figure 5). 3. If using the PRF-912B, position the probe vertically into the Concentric Ring Probe side of the PRV-913B with its spring-loaded pin electrodes making direct contact with the fixture’s gold- plated test segments (Figure 6).

  • Page 13: Basic Measurements

    6. When measuring the PRF-912B with the PRV-913B, resistance should be 1.00x10 ohms ±2%. The PRF-922B probe should measure 1.00x10 ohms ±1%. Figure 5. Remove Probe Cover. Figure 6. Insert the Probe into the PRV-913B Fixture. Basic Measurements 1. Place the 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.
  • Page 14 5. If using the PRF-912B, ANSI/ESD STM11.11 test voltage guidelines for measuring packaging materials are as follows: a. For material resistance measurements of less than 1.0x10 ohms, use <10 volts. b. For measurements of 1.0x10 to <1.0x10 ohms, use 10 volts.

  • Page 15: Using The Probe Stopper With The Prf-912B

    The PRF-922B has side stoppers built into the probe to limit the applied electrode pressure. Though the PRF-912B doesn’t have those side stoppers built into the probe, the PRF-900 STOP fixture can be attached to the probe to limit the pressure as well.

  • Page 16: One-Point Measurement

    04 ONE-POINT MEASUREMENT The PRF-922B can be converted into a One-Point Probe. The single pin probe configuration measures effective resistance across and or through a material or assembly. A proper measurement would include placing the material, or device under test (DUT), onto a clean metal test bed that is isolated from ground, such as the PTB-920 Test Bed.

  • Page 17: Material & Device Measurements With One-Point

    Figure 11. Removing the inactive pin helps identify point of actual measurement by the active pin. 3. Once pin continuity is determined and connection confirmed, install a conductive rubber boot on the active measurement pin. The boot reduces contact resistance and enhances measurement repeatability as required by ANSI/ESD STM11.13.

  • Page 18: Handling And Maintenance

    Inspect each probe for damage, then clean with the alcohol solution. If a probe is damaged, i.e., bent, does not compress smoothly, or has deep surface scratches, replace it with a new probe of the same size and characteristics. (Contact Prostat...

  • Page 19: Using The Conductive Rubber Boots And Rings

    Conductive rubber boots are used to reduce contact resistance between the electrodes and material under test. Measurements made with boots installed are typically lower than those obtained without boots. Figure 15. Rubber Boot and Ring on the PRF-912B Figure 16. Rubber Boots on the PRF-922B Maintenance of the PRV-913B Two-Point Dual Verification Fixture 1.

  • Page 20: Calibration Information

    PRF-MR10 Set of 10 Boots (for the PRF-922B) Table 2. Replacement Parts and Accessories The Prostat meters listed below are compatible with the probes. For more information about these accessories and their prices, contact a Prostat Authorized Reseller. Part No.
  • Page 24 ©2025 Prostat Corporation. Prostat, Prostat Corporation and the Prostat logo are trademarks or registered trademarks of Prostat Corporation or one of its affiliated companies in the United States and/or other countries. All other trademarks or registered trademarks are the property of their respective owners. Complying with all applicable copyright laws is the responsibility of the user.

This manual is also suitable for:

Prf-922bPrv-913b

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