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ESI-870 Resistance/Resistivity Indicator

TABLE OF CONTENTS

ESD

Check

ESI-870 RESISTANCE/RESISTIVITY INDICATOR

Title

Page #

Before using the Instrument ........................................................................................... 3

II. Safety

.............................................................................................................................. 3

III. Description

...................................................................................................................... 3

IV. Accuracy

......................................................................................................................... 4

Battery Installation & General Maintenance .................................................................... 5

VI.

Reading the ESI-870 Scale ............................................................................................. 7

VII.

ESI-870 Operation Procedures ..................................................................................... 11

VIII.

Functionally Testing the ESI-870 .................................................................................... 15

General Specifications .................................................................................................. 17

Summary of Contents for ESD check ESI-870

Page 1: ...Operations Manual Surface Resistance Resistivity Indicator ESI 870 ...

Page 2: ...rved Printed 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 ESD Check is the registered trademark of PROSTAT Corporation ...

Page 3: ...E RESISTIVITY INDICATOR Title Page I Before using the Instrument 3 II Safety 3 III Description 3 IV Accuracy 4 V Battery Installation General Maintenance 5 VI Reading the ESI 870 Scale 7 VII ESI 870 Operation Procedures 11 VIII Functionally Testing the ESI 870 15 General Specifications 17 ...

Page 4: ...ith ESD Association STM11 11 surface resistivity in accordance with ASTM D 257 resistance to ground and resistance point to point This instrument gives simple repeatable measurements to indicate whether a material is conductive static dissipative or insulative The ESI 870 employs parallel bar sensing and features an easy to read LED light scale The instrument may be used to measure a wide variety ...

Page 5: ...e designed for packaging materials measurement in accordance with EIA 541 and ESD Association standards and correlate to ASTM D 257 and ANSI ESD STM11 11 measurement procedures a The Upper Scale is labeled for Surface Resistivity measurements in Ohms Square per ASTM D 257 While the ESI 870 measurements are in keeping with ASTM D 257 bladed fixture procedures these measurements also correlate direc...

Page 6: ...curacy of the unit is 10 3 The decade Changeover Point from one decade to another is based on measured resistance 1 2 decade on logarithmic scale i e 3 16 x 10n 4 The accuracy of the Changeover Point is 1 2 decade 5 Instrument Resolution is one order of magnitude V Battery Installation General Maintenance A Battery Installation 1 Power is supplied by a standard 9 volt battery One battery will prov...

Page 7: ...ver and battery Reinsert it to obtain a better fit Be sure connector wires are positioned not to obstruct the battery compartment cover 7 The ESI 870 is now ready for testing and use B Initial Operational Check Once the battery is installed in the ESI 870 check its initial function as follows Note that this procedure should be conducted each time the instrument is used and whenever the instrument ...

Page 8: ...If the highest decade LED Insulative Exceeds ESI 870 Range does not light the unit is not functioning properly or the battery is dead B Cleaning 1 Periodically clean the electrodes and the instrument case area between them with a soft non abrasive cloth and a solution of 70 alcohol and water 2 Wipe the surface with a soft cloth moistened with clean alcohol and allow to dry thoroughly 3 Dust off an...

Page 9: ...lights indicate the material is in the Conductive range i e less than 1 0x105 Ohms square 2 The Green LED lights indicate the material is in the Static Dissipative range i e greater than 1 0x105 to less than 1 0x1012 Ohms square 3 The Red LED lights indicate the material is Insulative or greater than 1 0x1012 Ohms square and possibly greater than the range of the ESI 870 c Note that when the instr...

Page 10: ...e ESI 870 is used to measure Resistance between two points i e Resistance Point to Point Rtt in Ohms the two Resistance Reference Inputs Auxiliary Connections located at the top end of the unit are used with additional test leads a The additional test leads are inserted in the Auxiliary Connection receptacles that are designed for standard banana plugs b The opposite ends of the test leads are con...

Page 11: ...edure However the measurement results correlate closely with the S 11 11 data when compared under typical laboratory conditions 1 When the ESI 870 is used to measure Surface Resistance of a Packaging Material in Ohms per ANSI ESD STM11 11 the bottom two brass electrodes are firmly placed against the material and ESI 870 actuated 2 The resistance between the two electrodes are displayed on the LED ...

Page 12: ...face Resistance Resistivity Measurements 1 Place the material to be measured on an insulative surface such as the PTB 915 Test Bed This test configuration offers the best accuracy a This prevents incorporating a conductive test bed in the measurement circuit b If a conductive test bed is used you may obtain a measurement indication that is lower than the actual material resistance 2 Place the ESI ...

Page 13: ... as your measurement criteria read the UPPER scale b If using Surface Resistance in Ohms per ESD Association ANSI ESD STM11 11 as your measurement criteria read the LOWER scale B Initial Operational Check A Review Prior to using the ESI 870 for test measurements always perform the Initial Operational Check as follows This procedure assumes that a fresh battery of good quality has been properly ins...

Page 14: ...trodes 2 Connect the opposite end of the black lead to a defined ESD Ground point Use the accessory alligator clip if necessary 3 Place the ESI 870 on the material to be measured 4 Place your index finger at the top edge of the instrument above the UPPER scale notes 5 Place your thumb directly on the Green Press to Test button 6 Balance the weight of your hand between the thumb and index finger an...

Page 15: ... these two Auxiliary Connections are used If body or material contact is made with the brass electrodes during this measurement mode the indicated reading may be affected b You will notice the LED s will light as they automatically range to a final measurement c Continue pushing the Press to Test button until one 1 LED remains on indicating a stable measurement about 5 seconds 4 The resistance in ...

Page 16: ...eference required is from 1 0x103 to 1 0x1010 Ohms 2 Measurements greater than 1010 are calculated using cad generated techniques as high resistance s greater than 1010 are difficult to verify with a test voltage of 9 volts D Once the leads are inserted set the resistance reference to the desired resistance i e 103 1 Press and hold the ESI 870 s Press to Test button Important Note If you do not en...

Page 17: ...he resistance reference while pressing the test button 2 Record the resistance when the next LED lights and holds in a stable manner This is the changeover resistance Example The first LED 103 is illuminated At 4 000 Ohms the 104 LED is illuminated The changeover point is 4 0x103 Ohms ...

Page 18: ... Indications 103 to 1012 Ohms square per ASTM 257 in one decade increments 102 to 1011 Ohms per S 11 11 in one decade increments Over range indicator light for Insulative surfaces i e 1012 Ohms square or 1011 Ohms Auxiliary Connections 2 ea Female Banana for Resistance Range Performance Verification and Direct Point to Point Resistance measurements without electrodes 1 ea Point to Ground Phono Rec...

Page 19: ...ESI 870 Resistance Resistivity Indicator 18 ...

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