Prostat PGA-710 User manual

PGA-710 Autoanalysis System
How To Measure Guide
For PGA-710 Autoanalysis System Only
Currently only available in English & Japanese
Last updated: January 2011

PGA-710 Autoanalysis System – How To Measure Guide 2
CVM-780 Contact Voltmeter Set
Quick Start Guide
Copyright 2001-2011 by PROSTATCorporation. All rights reserved. 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, 1072 Tower Lane, Bensenville, IL 60106
PROSTAT is the registered trademark of PROSTATCorporation

PGA-710 Autoanalysis System – How To Measure Guide 3
TABLE OF CONTENTS
PROSTAT®PGA-710 AUTOANALYSIS SYSTEM
Title Page #
I. General .......................................................................................................................... 3
II. Instrument Setup for Body Voltage .................................................................................. 4
III. Measure Body Voltage Generation ............................................................................... 11
IV. Instrument Test Setup for Decay .................................................................................. 21
V. Basic of Voltage Decay Analysis................................................................................... 22
VI. Understanding Ionization & Measurement Objectives ................................................... 24
VII. Offset Voltage & Decay Time Measurement Procedures.............................................. 25
VIII. Understanding Ionization & Measurement Objectives ................................................... 27
IX. Analyzing Decay Time Data & Generating Reports ....................................................... 29
X. Assembled Decay Charts................................................................................................ 32

PGA-710 Autoanalysis System – How To Measure Guide 4
Overview: Body Voltage Generation Analysis
Body voltage generation is directly related to the contact and separation of footwear with
flooring surfaces. Charge (Q) is generated on the outer surface of the shoe sole, and the body’s
voltage (V) is a function of body capacitance (C), which varies while walking versus standing.
The following instrument system and procedures measure and analyze body voltage while
personnel transport ESD sensitive devices, and estimate voltages when standing at
workstations or equipment during device handling operations.
The following analysis is useful in assessing the probability of device damage in the
manufacturing process based on the device’s Human Body Model (HBM) damage threshold. It
will estimate the range of probable body voltage of most personnel while wearing the test
footwear on the floor surface in question, under specific temperature and relative humidity
conditions. In effect, using the following procedure with the PGA-710 Autoanalysis system
calculates and reports the probability of personnel equaling, or exceeding levels of body voltage
under specific conditions.
I. General
Install the PGA-710 Autoanalysis Applications software on your computer as described in
the Quick Start Installation Guideline, and charge the PGA-710 Autoanalyzer’s battery for
greater than 8 hours. Setup the instrumentation and test area as described, using the
following schematic and photographs. Review the PGA-710 Autoanalysis System
Operations Manual for detailed system instructions.
Figure 1: Schematic of Test Setup

PGA-710 Autoanalysis System – How To Measure Guide 5
The shielded measurement cable is intented for use with the Prostat CPM-720 charge plate
monitor for measuring body voltage generation, charge retention, remote equipment and other
electrostatic voltage sources. The signal conductor insulation is Red and the shield insulation is
Green. Connect the Red lead to the CPM and object being measured. Connect the Green shield
to ground to reduce the effects of ambient electrical noise and transmitted energy. Do not
connect the shield to the ground plate of the CPM.
II. Instrument Setup for Body Voltage
The following outline will help prepare your system for capturing and recording data. To
protect your system, please review the following before proceeding further.
NOTE: The PGA-710 was designed to be used in conjunction with PROSTAT instruments,
specifically the PFM-711A Field Meter equipped with the CPM-720 Charge Plate Monitor
accessory. However, other devices having specified tolerances and output voltages ±2 volts
or less may be used with the PROSTAT PGA-710 Autoanalysis System. Confirm that the
measurement instrument’s maximum output voltage does not exceed 2.0 volts and that
connections are compatible before using other instruments with the PGA-710. If there is any
doubt about instrument compatibility, contact PROSTAT before connecting the instrument,
as damage incurred by using other instruments with the PGA-710 may void your warranty.
Set up your instrument for capturing data as follows:
1. Attach the PROSTAT CPM-720 Charge Plate to the
PFM-711A Field Meter
2. Ground the instrument. Mount a fabric PROSTAT
PWS-610M Modified Wrist strap to a 5 pound NFPA
electrode, and connect the wrist strap cord to a
previously tested ESD ground as shown in Figure 2,
below. (See ESD S-6.1 Grounding for details
regarding ESD grounds.)
CAUTION: To prevent damage to the PGA-710 and voiding your warranty, input to the
Autoanalyzer may not exceed 2.0 volts without specific adjustments and recommendations
from PROSTAT. Confirm proper non-PROSTAT instrument output voltages before connecting
to, and energizing the system.
Figure 2: Portable CPM Connections

PGA-710 Autoanalysis System – How To Measure Guide 6
3. Secure the instrument to prevent damage. Attach the PFM-711A Field Meter to the
modified wrist strap using its ground snap as shown in Figure 2. This will maintain the
PFM-711A & CPM-720’s connection to ground, while preventing the system from being
pulled from a worksurface during normal measurements.
4. Connect the instruments. Plug one end of the analog output cable into the PFM-711A
Field Meter, and the other end into the PGA-710 Autoanalyzer. See Figure 3, below.
5. Connect the PGA-710 to the Computer. Install the supplied USB output cable between
the PGA-710 Autoanalyzer receptacle and your computer’s USB port. This allows data
flow from the PGA-710 into the Autoanalysis System Application software.
6. Energize instruments & computer. Turn ON the field meter, computer and Autoanalyzer.
7. Start Software. Open Autoanalysis Applications Software on the computer and select
Start a New Session Wizard (Figure 4)
Figure 3: Connect Field Meter Output to Autoanalyzer input
Figure 4: Start a new session

PGA-710 Autoanalysis System – How To Measure Guide 7
8. Select type of test. When the Session
Wizard opens, choose Voltage
Generation Test as in Figure 5. This
opens a series of windows you may
use to annotate your charts and
provide report information.
9. Enter number of walking steps. In the
first window you may enter the
number of walking step cycles you
plan to conduct, as in Figure 6.
Twenty is typical, but you may enter
any number suitable to your needs.
Press to continue.
10. Enter Technician, Affiliation and Material information, and press to continue.
11. Enter address and test area information and click Finish to complete Session Wizard.
Figure 5: Start a new session
Figure 6: Enter number of Step Cycles Figure 7: Enter Personnel & Material Information
Figure 8: Test Location Information

PGA-710 Autoanalysis System – How To Measure Guide 8
12. A new test screen opens and allows immediate measurements. Note that without data
in the system Test Information Status is “Incomplete”.
13. Select background, line colors and temperature type (oC, oF or both). Change colors or
include reference lines using the Document drop down, Appearance Options menu.
Figure 9: New Test Screen
Figure 10: Appearance Window Changes Backgroundand Selected Display Elements

PGA-710 Autoanalysis System – How To Measure Guide 9
14. Add reference lines and labels using the Document drop down, Voltage Custom
Labels menu. Once lines and labels are added and the screen is configured to your
needs you may test the system for proper zero, data capture and scaling.
15. To confirm the voltage zero (0) reference for the system, proceed as follows:
a. Remove the analog cable from the Autoanalyzer and insert the supplied shorting
shunt. Confirm the unit is energized and connected to the computer
b. Press Green right arrow in the Chart Control section or F5 to start the Preview
data trace.
c. If using a black background a Lime Green trace will appear in the screen window at
approximately zero
d. Press the Black Square ■or F8 to stop the preview
Figure 11: Adding and Modifying Reference Voltage Line, Labels and Colors
Figure 12: Previewing the zero reference

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16. To fine tune the zero reference, open the Edit drop down menu and select Current
Measures (Figure 13). This will display a small window that provides detailed data
regarding specific Voltage, Temperature and Relative Humidity.
a. Press the Green Preview Arrow (F5) to start the Preview Trace, then Voltage Auto
Balance double vertical arrows (F11). This will provide a detailed view of the zero
reference.
b. If the zero reference is greater than 0 ± 2 Volts, zero the System as follows:
Figure 13: Opening the Current Measures window for detailed data display
Figure 14: Press Voltage Auto Balance button of F11 to display all data in the screen view

PGA-710 Autoanalysis System – How To Measure Guide 11
i. Select the Edit drop down menu and click Device Control. The Device Control
window will open
ii. Press Clear Zero, then Set Zero
iii. To finish, press Done. This will reset the Autoanalysis System zero to 0 ± 2 Volts
c. Remove the shorting shunt and reinstall the PFM-711A analog output cable
d. Use the Voltage Scaling Buttons to adjust the signal trace to your display needs.
Figure 15: Resetting Autoanalysis System Zero reference
INFORMATION NOTE
The PGA-710 Autoanalysis System is a precision instrument. Depending on the
environment and while rare, the System’s zero reference may be affected by high
levels of extraneous transmitted energy, or “noise” i.e., EMI/RFI. All units are easily
zeroed as described above unless influenced by excessive noise. The noise level
will be recorded and displayed by the system unless it is eliminated, or the system is
shielded from the transmitted energy in some manner.

PGA-710 Autoanalysis System – How To Measure Guide 12
III. Measure Body Voltage Generation
Once the system is setup and zeroed, the actual body voltage generation measurements are
quite simple to conduct. Basically, the system records the voltage generated on the operator‘s
body while walking, using a specific six step pattern. The walking pattern is repeated several
times, typically about 20 cycles. The system then analyzes the walking data with some input
from the operator.
The Walking Step
The operator holds a metal wand in their hand during the walking
cycles. The wand is connected to the Charge Plate Monitor accessory
installed on the PROSTAT PFM-711A Field Meter.
1. Once positioned, press the Green Right Arrow (F5) to start data Preview; conduct
one or two walking patterns to ascertain body voltage range. The following
demonstrates high voltage generation. Press the Voltage Auto Balance button
(F11) to bring the entire trace within the display view.
Figure 16: Six-Step Walking Pattern Figure 17: Operator Conducting Six-
Step Walking Pattern

PGA-710 Autoanalysis System – How To Measure Guide 13
2. If range is satisfactory, temporarily ground the operator to re-zero the trace then press
the Red Record button or F6 to begin collecting recorded data. Note that the trace
changes color indicating data is being recorded. Conduct the number of six-step walking
cycles you desire. Press the Black Square (F8), to stop recording; the preview trace
will be erased leaving only the recorded data.
a. You may press the Time Scale Auto Fit button or F12 to display the entire test
series on the screen (Figure 19)
b. If desired add lines and labels. In the Figure 19 additional voltage lines and labels
were added at ±100 volts using Document, Voltage Custom Options menus.
c. Notice that the Test Information section displays the Type of test and its status
Figure 18: Preview Body Voltage Generation and Adjust Voltage Range by pressing the Voltage Auto
Balance button or pressing F11
F12 Shows Entire Test in 1 Full Screen
Figure 19: To fit all data on the display horizontally press Time Scale Auto Fit Button (F12)

PGA-710 Autoanalysis System – How To Measure Guide 14
i. Test Type reflects the selection you made in the Session Wizard. It could be
General Test, Voltage Generation Test or Decay Test
ii. Status indicates your progress in the testing and analysis sequence Edited
indicates that data was obtained the recording is stropped.
3. Trim the trace of data to be ignored by the analysis
process. Select the Edit drop down menu, and
click Trimming…. The drop down menu will close
and the Editing Control window will open. The
Editing
a. Select Trim Left. Position the cursor on the
trace. Everything LEFT of the cursor will not be
used in the analysis.
b. Select Trim Right. Position the cursor on the
trace. Everything RIGHT of the cursor will not
be used in the analysis.
Figure 20: Trim the trace of data to be ignored
NOTE
Trimming will exclude data from the analysis process. Trimming will not
remove data from the file. Be sure of your positioning to reflect the data you
wish to incor
p
orate in the final anal
y
sis.
Figure 21: Trimmed data is not used for the analysis, but is not eliminated from
the data file. Use Undo Trim to remove Trim Areas
Trimmed Area Removed from
Analysis & Calculations

PGA-710 Autoanalysis System – How To Measure Guide 15
Figure 23: Analysis Offers Different Number of
Peaks
Figure 24: No Peaks Found message indicates
system cannot resolve number of entered walking
steps
Figure 25: Edit Control Window
4. To analyze the data, select VoltageGen in the
Editing Control window, and enter the total
number of six-step walking cycles in the
recorded trace.
5. Click the Analyze button to start the analysis. There are two peaks for each Step Cycle,
a Walking (maximum) peak and a Standing (minimum) peak. Thus, if the system “sees”
40 peaks, it is analyzing 20 step cycles. If it sees 42 peaks, it is analyzing 21 steps
a. If the system analysis agrees with your entry, vertical colored lines indicating
negative or minimum values and other lines indicating positive or maximum values
will appear. In this case, click Adjust and Release to complete the analysis.
b. If the system does not agree, the number
of possible voltage peaks found may
appear in the Results window
c. You may click on a proposed Results
option, if there is more than one, to initiate
the analysis. Or, you may enter a different
number of Step Cycles, press Enter, and
then Analyze to restart the analytical
process.
d. If the system cannot resolve the number of
peaks that were entered a No Peaks
Found! (Figure 24) Message appears.
Click OK and enter a new number of
walking cycles. Repeat the process as
necessary until the system recognizes the
number of step cycles.
e. In the next Adjust function, you will have
an opportunity to accept, add or delete
displayed peaks.
6. Should you find that there is an extra peak, or
one missing, either minimum or maximum; you
may correct the situation using the Adjust
function in the Edit Control window. Use the
Add or Remove buttons to include or eliminate
various peaks from the analysis.
Figure 22: Enter Number of Walking Steps to
analyze

PGA-710 Autoanalysis System – How To Measure Guide 16
Figure 26: Clicking “Release” initiates detailed data analysis. 3 Sigma range will be identified for
Walking and Standing data, and the Average for each range will be
a. To remove any peak (Min or Max) from the analysis, click Remove, place the cursor
over the peak line you wish to eliminate, and click the Left mouse button. (Figure 25)
b. To add a Minimum or Maximum peak to the analysis select the appropriate button
(Add Min or Add Max)and position the cursor on the peak you wish to add.
7. Once you are generally satisfied with the number peaks click Release in the Edit
Control window (Figure 25) to initiate detailed analysis of the data.
Once the data is “released” the program will automatically calculate (Figure 27):
a. 3 Sigma range (Average plus and minus 3 times the standard deviation) for Walking
body voltage range
b. 3 Sigma range (Average plus and minus 3 times the standard deviation) for Standing
body voltage range
c. The Average for each Walking and Standing body voltage ranges

PGA-710 Autoanalysis System – How To Measure Guide 17
Figure 27: Automatically Calculated
Standing & Walking Voltage Ranges
Figure 28: Generating Reports using Document Drop Down Menu
In this illustration, the Blue Lines Indicate Standing
Body Voltage Average ±3 Standard Deviations
In this illustration, Red Lines Indicate Walking Body
Voltage Average ±3 Standard Deviations
8. Once the basic calculations are completed a detailed report may be generated. From the
Document drop down menu (Figure 28) select Report View
a. This opens the Report window where type and format may be selected.
b. If the Body Voltage Test is selected, a full size 8.5 x 11.0 inch landscape chart will
be generated for printing, or export (Figure 29). Any information entered in the
Session Wizard will be included on the chart.

PGA-710 Autoanalysis System – How To Measure Guide 18
Figure 29: Full Size Chart with Session Wizard Information
Figure 30: Full Size Chart with Session Wizard Information
c. Selecting the Body Voltage Analysis (Abs) report will generate graphs where their
slopes will be calculated using absolute values of the data. (Figure 30)

PGA-710 Autoanalysis System – How To Measure Guide 19
Figure 31: Body Voltage Generation Probability Curve using Recorded Negative (-) data.
The slope is from Right (High magnitude) to Left (Lowest magnitude)
d. Selecting the Body Voltage Analysis report will generate graphs where slopes will
be calculated using values and polarities of the recorded data. (Figure 31)
e. The first page of the report includes the graphic recording of the data, session
information and general calculations.
Graph of Recorded Data
±3 Sigma Ranges Highlighted
Descriptive Information that was
input to the Session Wizard
General Calculations and Footer
Information, which includes File
Name, Time and Date document
was printed, and page numbers
Figure 32: First Page of Body

PGA-710 Autoanalysis System – How To Measure Guide 20
Calculated Probable Body Voltage Range
of Personnel Functioning at Workstations
while Standing -- Based on Average
Minimum Peaks (at 6-Step Pause) ± 3
Standard Deviations
Calculated Probable Peak Body Voltage
Range of Personnel while Walking --
Based on Average Maximum Peaks ± 3
Standard Deviations
Calculated Probability of Equaling or
Exceeding a given Body Voltage of
Personnel while Standing and Functioning
at Workstations -- Based on Average
Minimum Peaks (at 6-Step Pause) ± 3
Standard Deviations
Calculated Probability of Equaling or
Exceeding a given Peak Body Voltage of
Personnel while Walking -- Based on
Average Maximum Peaks ± 3 Standard
Deviations
Figure 33: Second Page of Body Voltage
Generation Report -- Probable Voltage
Figure 34: Third Page of Body Voltage Generation
Report – Probability of Equaling or Exceeding a
defined Voltage