Prostat PRF-914B Manuel utilisateur

User Manual

PRF-914B

MINIATURE CONCENTRIC RING FIXTURE



  Page

I. Introducon & Descripon 4

II. Cauons & Warnings 6

III. PRF-914B Micro Probe & PRV-913B Verier Operaons 8

IV. Handling & Maintenance 11

V. Warranty Informaon 13

General Specicaons 14



manual may be used or reproduced in any manner whatsoever without wrien permission. For informaon contact

Prostat Corporaon, 1072 Tower Lane, Bensenville, IL 60106 USA

Prostat is the registered trademark of Prostat® Corporaon

4Rev. A / November 2005

PRF-914B High Resistance Miniature Concentric Ring Fixture Set

 

The High Resistance PRF-914B Miniature Concen-

tric Resistance Fixture accurately measures surface

resistance of small areas. The xture set consists

of a PRF-914B Concentric Resistance Fixture, dual

shielded cables equipped with SMA and BNC con-

nectors, and a BNC/banana adapter for instrument

connecon. The oponal PRV-913B Resistance Veri-

caon Fixture is designed to conrm the proper

operaon of the PRF-912B and high resistance PRF-

914B Miniature Concentric Resistance Fixtures.

The PRF-914B is designed to work in conjuncon

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 equiva-

lent). This instrument and xture combinaon

provides direct surface resistance measurements in

ohms, generally in accordance with the ESD Asso-

ciaon’s S11.11 Surface Resistance test standard. To

obtain an esmate of ASTM D-257 Surface Resis-

vity in ohms/square, simply mulply the PRF-914 xture measurement by 10, i.e., add one order of

magnitude.

A. PRF-914B Concentric Resistance Fixture Descripon

This precision xture is designed in miniature to approximate surface resistance measurements

typically obtained with the ESD Associaon’s ESD S11.11 Surface Resistance Standard xture. The

PRF-914B, however, is approximately 1/10th the size of the S11.11 xture. Based on its size the

PRF-914B is oen referred to as a “micro probe”.

1. The resistance measurement range of the PRF-914B xture is 0.9 ohms at <10 volts to 1.0E+14

(1.0x1014 ) ohms at 100 volts.

2. The miniature concentric xture 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 connuous outer ring. (Figure 2) Contacts are pogo-pin type ATE quality

probes made of beryllium Copper coated with 60 microinch of hard Gold.

a. The PRF-914B’s center electrode is electrically separated from the outer ring contacts by

a high resistance dielectric (Teon). The center electrode acts as a current sensor dur-

ing resistance measurements. It is connected to the negave (-) terminal of a wide range

measurement instrument via its own RG-174 coaxial cable’s inner conductor, SMA/BNC

couplers and dual BNC to Banana instrument adapter. The outer shield of the sensing cable

is connected to ground via the instrument adapter.

b. The outer ring contacts are electrically connected at a common point. They apply the test

voltage to the material under test during a resistance measurement. They are connected to

the posive (+) terminal of the wide range measurement instrument via a second shielded

RG-174 coaxial cable’s inner conductor, SMA/BNC couplers and dual BNC to Banana instru-

ment adapter. The outer shield of the power cable is connected to ground via the instru-

ment adapter.

-

-



Rev. A / November 2005

PRF-914B High Resistance Miniature Concentric Ring Fixture Set

c. The xture’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-914B resistance xture approxi¬mates the same

measurements obtained when using a standard ESD Associa

on Standard ANSI/ESD S11.11 concentric ring xture.

4. Overall size of the PRF-914B is 0.50 inches in diameter by 6.3

inches (175 mm) long. (Figure 3) This opmal size and shape

make the xture very comfortable and easy to handle. Its

outer housing is made of black anodized aluminum.

5. PRF-914B Standard accessories include protecve cover, one

RG-174 cable, a BNC/banana adapter and instrucons

6. Oponal accessories include the PRV-913B Dual Fixture Veri-

caon Reference, described below.

B. PRV-913B Dual Vericaon Fixture Descripon

1. Approximately 2 inches (50.1mm) square by 0.82 inches (21mm) thick, the PRV-913B is de-

signed to conrm the proper funcon of the PRF-912B, PRF-914B and PRF-922B Microprobe

Resistance Fixtures. It consists of a high quality black anodized housing and circuit board incor-

porang an array of ten (10) each 10 megohm precision (±2%) resistors in parallel, connecng

the center pad to each of the ten peripheral trace pads, it provides a specic reference resis-

tance of 1.0x106 ohms (±5%) on the concentric ring side.

On the other side, it consists of a circuit board containing 1 each, 1 megohm (1%) resistor con-

necng two peripheral trace pads. It provides a specic 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 dened contact with the refer¬ence surface. It has the capability of providing a 1-meg-

ohm (1.0x106 ohm) reference measurement with a theorecal maximum total variance of

9.5x105 to 1.05x106 ohms. Typical reference measurements range from 1.01x106 to 1.03x106

ohms, i.e., equal to or less than +5% error.

3. PRV-913B xture contact surfaces consist of copper substrates, nished with nickel and hard

Gold plang.

-

















6Rev. A / November 2005

PRF-914B High Resistance Miniature Concentric Ring Fixture Set

a. To accommodate the PRF-912B or 914B center electrode a single

gold contact point is posioned at the center of the PRV-913B

Vericaon Test Surface.

b. The center posion is connected to the ten individual outer ring

race pads by the ten, 10 megohm resistors.

 

As with any electrical device, use proper electrical precauons and measurement pracces to avoid

personnel shock. Read this manual in its enrety before aempng to use these products.



This manual displays Cauons and Warnings alerng the user to hazardous operaon and ser-

vicing condions.  or  headings throughout this publicaon ag this infor-

maon, where appropriate. Follow all Cauon and Warning instrucons at all mes.

A. Use of Measurement Power Supply

1. The PRF-914B is a high performance micro probed designed for use with a maximum input

voltage of 100 volts. As such, it is capable of delivering an annoying shock to any person touch-

ing the spring-loaded contacts when they are energized.

a. If used with the Prostat PRS-801 Resistance System, the current capability of the micro

probe instrument combinaon is limited to a very low, typically harmless level. However, a

disnct hazard exists in the operator’s reacon to a possible shock.

b. To avoid shock, operang personnel should not touch the electrodes, or any exposed me-

tallic parts of the PRF-914B xture or cable assembly when power is applied to the probe.



To avoid electrical shock, Do Not Touch the xture test electrodes, test bed, or exposed

metal BNC connecons when power is being applied to the probe.

c. The designed operang voltage limit for normal auding and laboratory measurements is

100 volts. Exceeding 100 volts greatly increases the risk of personnel shock hazards.



Never exceed the maximum applied operang test voltage of 100 volts

-



Rev. A / November 2005

PRF-914B High Resistance Miniature Concentric Ring Fixture Set

d. Only qualied instrument repair and test personnel should exceed the 100-volt opera-

on limit, and then do so 



e. Never, under any condions, exceed 500 volts during xture test or repair.

B. Other Operaonal Precauons

1. Do Not Use the PRF-914B Micro Probe if it fails to funcon during its connuity inspecon test.

2. Do Not Use the PRF-914B Micro Probe if it becomes damaged in any way

3. Only Prostat Corporaon authorized, qualied repair personnel may open PRF-914B or PRV-

913B housing, terminal assemblies, or perform product repair. Unauthorized opening of xture

or instrument housings, device tampering, or aempted repair will absolutely void product

warranty and completely absolve Prostat Corporaon, its employees, suppliers and representa-

ves of any responsibility, liability, or other, whatsoever.



Unauthorized opening of xture or instrument housings, device tampering, or aempted re-

pair will absolutely void product warranty and completely absolve Prostat Corporaon of any

responsibility, liability, or other, whatsoever.

 Electrodes will become contaminated with skin oils and

salts, and may become damaged or rendered inaccurate.

  Always store devices

with protecve caps in place in a dry environment, preferably at ≤ 20% Relave Humidity.



Storage or use of these instruments, xtures and devices in damp or wet condions may

cause damage to electrical circuits, and contact surfaces, which may eect performance or

increase the possibility of personnel shock or arc discharge.

6. Do not use these xtures and devices in combusble or explosive environments.



Improper handling and use of energized circuits may cause arc discharge, which in turn may

cause the ignion of combusble materials or fumes. Do not use exposed energized circuits in

ammable areas.

7. Do not aempt to measure energized materials, items or circuits with the PRF-914B

8. The PRF-914B is a precision xture to be operated by experienced personnel familiar in the use

and handling of devices employing energized power supplies.

8Rev. A / November 2005

PRF-914B High Resistance Miniature Concentric Ring Fixture Set

9. Do Not Drop or cause mechanical damage to these devices.

 

A. PRF-912B Setup

1. Connect measurement cable to PRF-914B

a. Carefully aach one RG-174 cable SMA connector to the xture’s (-)

Sense terminal.

b. Aach the second RG-174 cable SMA connector to the xture’s (+)

Source terminal. (Figure 5).



SMA connecons are quite fragile. Carefully align the components

then rotate the threaded cap clock-wise to complete the connec-

on. Be especially careful not to cross-thread the connectors.

Tighten “nger ght” only

2. Connect the (-) Sense cable’s BNC ng to the

instrument Adapter’s (-) Sense terminal.

3. Connect the (+) Source cable’s BNC to the

instrument Adapter’s (+) Source terminal

(Figure 6)

4. Once the cables are installed and connected

to the Instrument Adapter, the PRF-914B is

ready for connecon to a wide range ohmme

ter, connuity test, vericaon and use.

5. Connect Instrument Adapter to a wide range,

resistance instrument with ¾ inch termi¬nal

spacing. The (+) Source plug of the Adapter

should be connected to the instrument’s Posi

ve (+) power terminal (gure 7)

6. Connect the Instrument Adapter ground plug to the instrument’s ground reference (Figure 8)





-



Rev. A / November 2005

PRF-914B High Resistance Miniature Concentric Ring Fixture Set



-









B. Conrming Proper BNC Connecons, Connuity & High Resistance Tests

The following conrms proper connecons by checking connuity of the micro probe against a

metal plate, then conrms its ability to measure high resistance.

1. To conrm general setup and funcon of the PRF-914B, place the electrodes against a clean

metal surface. For example, the plated metal side of the Prostat PTB-920, Dual Surface Test

Bed.

a. Hold the PRF-914B vercally, and apply pressure to slightly compress the electrodes, mak-

ing posive contact with the metal surface.

b. Acvate the wide range, resistance instrument to obtain a measurement.

In the case where the Prostat PRS-801 is the measurement instrument, it should

measure approximately 1.0 ohm, or less.

2. Repeat the above procedure using the clean insulated surface (Black, labeled side) of the PTB-

920, or an insulated acrylic plate.

a. Hold the PRF-914B vercally, and apply pressure to compress the electrodes, making posi-

ve contact with the insulated surface.

b. Acvate the wide range, resistance instrument to obtain a measurement.

In the case where the Prostat PRS-801 is the measurement instrument, it should measure

1.0x1014 ohms, or greater.

C. PRF-914B Vericaon Using the PRV-913B

1. Connect the BNC/banana adapter to the wide range, resistance measurement instrument.

Flange side of dual banana should be connected to the Posive (+) power terminal. This ap-

plies test voltage to the 10 outer ring electrodes.

10 Rev. A / November 2005

PRF-914B High Resistance Miniature Concentric Ring Fixture Set

2. Remove PRF-912B Probe Cover (Figure 8).

3. Posion PRF-914B vercally into the PRV-913B Verier with

its spring loaded pin electrodes making direct contact with

the Verier’s gold plated test segments.

4. Depending on your resistance instrument select either 10V

or 100V test voltage.

5. Measure PRF-914B probe resistance while posioned in the

PRV-913B Verier. Resistance should be 1.0x106 ohms ±5%.

D. Basic Measurements Using the PRF-914B 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. Posion the PRF-914B vercally directly over test

area and lower it unl the spring loaded center

electrode makes direct contact with the material

under test.

3. Apply sucient pressure on the probe unl the

center and outer spring loaded electrode are

parally compressed while in contact with the test

material.

4. Select appropriate instrument test voltage and

iniate resistance measurement. ESD Associaon

S11.11 test voltage guidelines for measuring pack-

aging materials are as follows:

a. For material resistance measurements of less than 1.0x104 ohms, use <10 volts.

b. For measurements of 1.0x104 to <1.0x106 ohms, use 10 volts.



Adjust probe pressure to insure that the electrode springs are controlling the probe’s con-

necon with the material’s surface and that the springs are not fully compressed against

their stops. This will insure reproducible measurements.





-



Table des matières

Autres manuels Prostat Instrument analytique

Prostat

Prostat PGA-710B Manuel utilisateur

Prostat

Prostat PRF-912B Manuel utilisateur

Prostat

Prostat PGA-710B Manuel utilisateur

Prostat

Prostat PGA-710 Manuel utilisateur

Prostat

Prostat PRF-922B Manuel utilisateur

Manuels Instrument analytique populaires d'autres marques

Cocraft

Cocraft NLT04 Manuel utilisateur

M&C

M&C GENTWO PMA1000 Manuel utilisateur

MICRO-EPSILON

MICRO-EPSILON optoncdt 1700 Manuel utilisateur

CONDTROL

CONDTROL XP4 PRO Manuel utilisateur

Extech Instruments

Extech Instruments BR200 Manuel utilisateur

Dewetron

Dewetron DEWE-30-16 Manuel du produit

EXTOL PREMIUM

EXTOL PREMIUM 8820043 Instructions d'installation et d'utilisation

RIDGID

RIDGID SeeSnake Compact Manuel utilisateur

Teledyne

Teledyne 3000PA Manuel utilisateur

YDLIDAR

YDLIDAR TIA Manuel utilisateur

Olympus

Olympus IPLEX FX Series Manuel utilisateur

Bosch

Bosch GLM 50 C Professional Manuel utilisateur

Reflecta

Reflecta DigiEndoscope Manuel utilisateur

Chinavision

Chinavision CVACZ-G696 Instructions de montage

Fuji Electric

Fuji Electric ZKMA Manuel utilisateur

Teledyne

Teledyne 3300TA Manuel utilisateur

VOLTCRAFT

VOLTCRAFT IC-100HD Manuel utilisateur

RIDGID

RIDGID micro CA-25 Manuel utilisateur