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PRF-912B & PRV-913V Miniature Concentric Ring Fixture Set 

3

 

 

I. 

Introduction & Description 

 

The PRF-912B Miniature 
Concentric Resistance Fixture 
accurately measures surface 
resistance of small areas. It 
consists of a PRF-912B 
Concentric Resistance Fixture, 
shielded cable equipped with 
BNC connectors, and a BNC to 
male banana connectors adapter. 
The 

optional

 PRV-913B Dual 

Verification Fixture is designed to 
confirm the proper operation of 
the PRF-912B and high 
resistance PRF-914B Miniature 
Concentric Resist-ance Fixtures. 
 
The PRF-912B is designed to 
work in conjunction with a 
precision wide range resistance 
instrument, such as the 
PROSTAT PRS-801 Resistance System, and an insulated test bed (e.g., PTB-920 or 
equivalent). This instrument and fixture combination provides direct surface resistance 
measurements in ohms, generally in accordance with the ESD Association’s S11.11 Surface 
Resistance test standard. To obtain an estimate of ASTM D-257 Surface Resistivity in 
ohms/square, simply multiply the PRF-912 fixture measurement by 10, i.e., add one order of 
magnitude. 
 
A.   PRF-912B Concentric Resistance Fixture Description 
 

This precision fixture is designed in miniature to approximate surface resistance 
measurements typically obtained with the ESD Association’s ESD S11.11 Surface 
Resistance Standard fixture. The PRF-912B, however, is approximately 1/10

th

 the size of 

the S11.11 fixture. Based on its size the PRF-912B is often referred to as a “micro 
probe”. 

 

1.   The resistance measurement range of the PRF-912B fixture is 0.9 ohms at <10 volts 

to 1.0E+12  (1.0x10

12

 ) ohms at 100 volts. 

 
2.  The miniature concentric fixture consists of a spring loaded 0.10 inch (2.54 mm) 

diameter center electrode surrounded by 10 each 0.06 inch (1.5 mm) diameter 
contact electrodes that electrically form a continuous outer ring. (Figure 2) Contacts 
are pogo-pin type ATE quality probes made of beryllium Copper coated with 60 
microinch of hard Gold. 

 
 
 
 

 

Shielded
Cable
With

 

BNC

Connectors

BNC to Male
Banana
Adapter

PRF-912

 

Mi i t

Concentric
Resistance
Fixture

PRV-913 Resistance Fixture
Verification Reference

BNC  
Connection 
Cover

 

Probe Cover

 

Figure 1: PRF-912B Miniature Concentric Resistance Fix-
ture Measurement Set with Optional PRV-913B Dual 
Verification Fixture. 

Содержание PRV-913B

Страница 1: ...P R O F E S S I O N A L S T A T I C C O N T R O L P R O D U C T S Operations Manual Miniature Concentric Ring Fixture Set PRF 912B PRV 913B ...

Страница 2: ...in the United States of America No part of this manual may be used or reproduced in any manner whatsoever without written permission For information contact PROSTAT Corporation 1072 Tower Lane Bensenville IL 60106 PROSTAT is the registered trademark of PROSTAT Corporation ...

Страница 3: ...ONTENTS PROSTAT PRF 912B PRV 913B MINIATURE CONCENTRIC RING FIXTURE SET Title Page I Introduction Description 3 II Cautions Warnings 6 III PRF 912B Micro Probe PRV 913B Verifier Operations 8 IV Handling Maintenance 12 V Warranty Information 13 General Specifications 15 ...

Страница 4: ...easurement by 10 i e add one order of magnitude A PRF 912B Concentric Resistance Fixture Description This precision fixture is designed in miniature to approximate surface resistance measurements typically obtained with the ESD Association s ESD S11 11 Surface Resistance Standard fixture The PRF 912B however is approximately 1 10th the size of the S11 11 fixture Based on its size the PRF 912B is o...

Страница 5: ...onductor BNC coupler and dual BNC Banana adapter c The fixture s total surface contact diameter is approximately 0 30 inches and is ideal for measuring surface resistance of small areas 0 32 inches or larger 3 The PRF 912B resistance fixture approximates the same measurements obtained when using a standard ESD Association Standard ANSI ESD S11 11 concentric ring fixture 4 Overall size of the PRF 9...

Страница 6: ...d containing 1 each 1 megohm 1 resistor connecting two peripheral trace pads It provides a specific reference resistance of 1 0 x 106 ohms 1 on the two point side 2 Properly used the PRV 913B insures that all PRF 912B PRF 914B spring loaded test probes make defined contact with the reference surface It has the capability of providing a 1 megohm 1 0x106 ohm reference measurement with a theoretical ...

Страница 7: ...personnel should not touch the electrodes or any exposed metallic parts of the PRF 912B fixture or cable assembly when power is applied to the probe c The designed operating voltage limit for normal auditing and laboratory measurements is 100 volts Exceeding 100 volts greatly increases the risk of personnel shock hazards d Only qualified instrument repair and test personnel should exceed the 100 v...

Страница 8: ...become damaged or rendered inaccurate 5 Do Not Use Or Store PRF 912B Or PRV 913B In Damp Environments Always store devices with protective caps in place in a dry environment preferably at 20 Relative Humidity 6 Do not use these fixtures and devices in combustible or explosive environments 7 Do not attempt to measure energized materials items or circuits with the PRF 912B WARNING Unauthorized openi...

Страница 9: ...ck rubber protective cover from PRF 912B s BNC connection b Attach shielded cable to the probe s BNC connection Figure 5 Figure 5 Connect shielded cable to PRF 912B s BNC fixture 2 Connect measurement cable to Dual Banana BNC Converter Figure 6 Figure 6 Connect Cable to Banana Converter Figure 7 PRF 912B with Cable Banana Converter BNC Connector Note that the BNC connection system is based on a ba...

Страница 10: ...al 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 104 ohms when using the Prostat PRS 800 analog Meg...

Страница 11: ...ing on your resistance instrument select either 10V or 100V test voltage 5 Measure PRF 912B probe resistance while positioned in the PRV 913B Verifier Re sistance should be 1 0x106 ohms 1 D Basic Measurements Using the PRF 912B Micro Probe 1 Place 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 2 Position ...

Страница 12: ...e the Prostat PRS 801 Resistance System in its AUTOMATIC Mode either Default Mode 1 Ohms or Mode 2 Exponential 1 0EXX Ohms display AUTOMATIC Mode will control test voltage resistance range adjustment and electrification period automatically Measurement Illustrations Using the PROSTAT PRF 912B Fixture Figure 11 Measuring Tape Foil Figure 10 Measuring Carrier Tape Figure 13 Measuring Formed Tray Fig...

Страница 13: ...e 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 Corporation Customer Service for spare replacement probes c Clean and dry the Teflon mounting disk twice to insure cleanliness d Carefully re install the spring loaded test probes and fully re seat them in their ...

Страница 14: ...TNESS FOR A PARTICULAR PURPOSE WHICH ARE SPECIFICALLY DISCLAIMED The express warranty will not apply to defects or damage due to accidents neglect misuse alterations operator error or failure to properly maintain clean or repair products Limit of Liability in no event will PROSTAT or any seller be responsible or liable for special incidental or consequential losses or damages under any legal theor...

Страница 15: ... Authorization RMA number and should be packaged and shipped as described above and as directed by PROSTAT s customer service department 2 The following information must be included with the returned product a Description of the problem b Customer s Purchase Order Number PROSTAT s Materials Authorization RMA number c Name telephone number and fax number of individual contact who can provide more i...

Страница 16: ...pring 3 5 pounds 1 6 kg Force Test Probe Total Travel 0 3 inches 7 8mm 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 Resistance System Power Not applicable Fixture powered by resistance instrument Warranty Prostat Corporation Limited one year PRV 913B Dual Verific...

Страница 17: ...PRF 912B PRV 913B Miniature Concentric Ring Fixture Set 16 Rev PRF 912B PRV 913B 11 2005 Format modification 02 11 2005 ...

Страница 18: ......

Страница 19: ......

Страница 20: ...Copyright 2001 2007 Prostat Corporation Printed in U S A 1072 Tower Lane Bensenville IL 60106 USA www prostatcorp com ...

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