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ETS 4406 Operating Manual

Static decay analyzer
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Static Decay Analyzer
ETS Model 4406 Operating Manual
D00939 Revision C - 20190409

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Summary of Contents for ETS 4406

  • Page 1 Static Decay Analyzer ETS Model 4406 Operating Manual D00939 Revision C - 20190409...

  • Page 2: Table Of Contents

    APPENDIX A - Method 4046.1 ........... 29 APPENDIX B – NFPA Code 99 .......... 32 APPENDIX C - MIL-PRF-81705D ........33 APPENDIX D - 4406 Controls and Connections ..... 34 APPENDIX E - Electrode Configurations ......41 Revision History: Revision A: Released 2018-09-10 Reorganization and appearance update Revision B: Released 2018-11-20.

  • Page 3: Important Safety Information

    I. Important Safety Information SAFETY INSTRUCTIONS The equipment described in this Manual is designed and manufactured to operate within defined design limits. Any misuse may result in electric shock or fire. To prevent the equipment from being damaged, the following rules should be observed for installation, use and maintenance. Read the following safety instructions before operating the instrument.

  • Page 4: Description Of Contents

    Faraday Cage Cage provides the means to test various samples. Sensor (Model # 406- The Model 4406 includes one sensor as standard system. 104) System Test Module STM-2 provides the means to verify that the system is in balanced before (Model # STM-2) actual testing is performed.

  • Page 5: Set-Up Guide

    III. Set-Up Guide Diagram of Operating System Cables Control Faraday Test Cage Sensor Step 1 – With AC power DISCONNECTED, Connect High Voltage Cable Make sure Power Switch on Control Unit’s front panel is in OFF position before inserting connectors. Connect the High Voltage Cable from the Faraday Cage to the Control Unit.
  • Page 6 Step 2 – Connect Ground Cable Connect the black ground cable from the Faraday Cage to the Control Unit. Step 3 – Connect Sensor Cable Connect the grey sensor cable from the Faraday Cage to the Control Unit. Step 4 - Connect Test Unit Cable Connect the Test Unit Cable from the Faraday Cage to the Control Unit.
  • Page 7 Step 5 - Connect Power Cable Make sure Power Switch on Control Unit’s front panel is in OFF position. Connect the Power Cable to the back of the Control Unit. Connect the Control Unit to the AC line by plugging its AC cord into a properly grounded AC outlet (Mains).

  • Page 8: Quick Start Guide

    IV. Quick Start Guide Step 1 – Switch Power ON Turn on POWER and allow the system to warm up for at least 5 minutes prior to testing. (If the Analyzer is to be used on an ongoing basis it can remain powered-up, but should be placed in the ZERO/STBY mode.) Step 2 –...
  • Page 9 Step 4 – Press “SYSTEM TEST” to run balance tests Step 5 – Wait until “SYSTEM TEST” shows “PASSED” Step 6 – Open Faraday Cage cover and remove STM-2. Remove the pair of rod-shaped Magnets holding the STM-M module in place. Be careful to avoid allowing the STM-2 to fall when removing the 2 Magnet to avoid damage.
  • Page 10 Step 7 – Install test sample, then close Faraday cage cover After removing the STM-2, use either the Magnets or Clamp Electrodes to secure the test sample. Step 8 – Press “MAN/AUTO” to go to AUTO mode Step 9 – Make sure display shows AUTO mode D00939C - Page 10 3101 Mt Carmel Ave.
  • Page 11 Step 10 – Press “DECAY TEST” to start AUTO tests Step 11 – Wait for “TEST OVER. Record data then repeat steps 7-10 for next sample, etc. D00939C - Page 11 3101 Mt Carmel Ave. Glenside, PA │ 833-ESD-GURU (833-373-4878)

  • Page 12: Operating Instructions

    V. Operating Instructions A. Initial Turn-On & Verification When turned on the system will default to ZERO/STBY status and the settings from any previous testing will be displayed as shown in Figure 5-1. Figure 5-1: Typical ZERO/STBY displays at initial turn-on At this time the Charging Voltage status, Test Mode and Cutoff level for sample testing can be set as follows: a.
  • Page 13 Make sure the sample being used for this purpose is conductive or static dissipative. If an actual sample is not available then use a conductive object similar in size. The indicated accepted voltage must be >3.00kV. If not contact ETS for technical assistance.
  • Page 14 – decay time readings should be no more than 0.02 seconds at 10% and 0.07 seconds at 1%. If this is the case, contact ETS for assistance. To perform this test, depress the SYSTEM CHECK key. The system will automatically default to +5.00kV and perform an auto test with 3 measurements displayed at the time of measurement at...

  • Page 15: Sample Testing

    If the system does not auto balance and/or the timer runs on, the display will indicate SYSTEM TEST Aborted as shown in Figure 5-5. Figure 5-5: System fails Self Test If this message is displayed, the Analyzer may need service or recalibration. Contact ETS at 215- 887-2196. B. Sample Testing 6.1.
  • Page 16 When testing a sample with unknown static dissipation characteristics it is necessary that its basic characteristics be measured by observing the existence of an initial charge (IC) and its ability to conduct on the charge applied to the electrodes. This analysis is performed by depressing the CHARGE key.
  • Page 17 Figure 6-2: Display for a sample that won’t charge If the sample has some limited static dissipative characteristics the accepted charge after applying +5.00V for 60 seconds is displayed. The more static dissipative the material the greater the amount of charge accepted. This measurement is very helpful when trying to evaluate materials with antistat additive levels that are just beginning make the material static dissipative.
  • Page 18 3.74 kV. The second display is for a sample that also exhibits static dissipative characteristic, but was a full size sample. Figure 6-4: Sample with no IC and able to conduct charge d. A composite or laminated material will exhibit similar characteristics, but the apparent accepted charge will be more like 3.50-4.75kV.
  • Page 19 CUTOFF CUTOFF APPLICABLE THRESHOLD VOLTAGE* SPECIFICATION 2500 Half Life NFPA Code 99 CECC 00015 (1000V) Mil-PRF-81705C, EIA & ESDA 541 Table 6.1 Cutoff Levels and Applicable Specifications *Nominal value. Actual cutoff is the percentage selected by the CUTOFF level selected. Example: If accepted voltage is 4.5kV, cutoff is 450V.
  • Page 20 To repeat or test a new sample, go to ZERO/STBY or depress the CHARGE or DECAY TEST key. AUTO mode: Select the AUTO mode by depressing the AUTO/MAN key. Depress the DECAY TEST key to start an automatic static decay time measurement sequence. Up to 6 measurements at +V and then at –V can be programmed.
  • Page 21 At the conclusion of testing a group of similar samples, depress the DATA ANAL key. The Min, Max and Average decay time of the sample group will be displayed as shown in Figure 6-8. Figure 6-8: Auto mode group data analysis display If the decay time exceeds 30 seconds the test is aborted and the display reads “ABORT TESTS”...

  • Page 22: Testing Hints

    This indicates that the sample is a very good insulator and will not accept any conducted charge. The Model 4406 automatically subtracts this value when measuring initial charge (IC=). Remember, these are electrostatic field measurements and the voltage displayed is the average value of the charge over the sensor’s total viewing area.
  • Page 23 Carbon or metal fiber loaded materials are not humidity dependent, but if the loading is too light then the effects of the filler material will be dependent upon humidity. Generally, these materials may be unstable due to changes in the dielectric that may occur during the charge cycle. Insulative Materials An insulative material (one defined as having a surface resistivity greater than or equal to 1x10 ohms/sq.) does not permit electrons to flow easily across the surface.
  • Page 24 Time Constant -  Figure 8-1: Standard and Method 4046 Exponential Decay Curves 8.6 Measuring Laminated Film The Model 4406 is specifically designed to measure the static decay characteristics of homogeneous static dissipative material having a surface resistance between 10 and 10 Ohms.

  • Page 25: Maintenance & Calibration

    IX. Maintenance & Calibration The Model 4406 Static Decay Analyzer, like all precision electronic instruments, should be returned to the factory once a year for calibration. However, due to heavy use or having been moved to another location the instrument may require some minor adjustments in the interim.
  • Page 26 9.2 How to Zero Out Initial Charge Reset Balance (Initial Charge) is set at the factory but if an adjustment becomes necessary, follow these steps: 1. Make sure STM-2 is installed before proceeding with the below instructions 2. Press "ZERO/STDBY" button to go to this screen. 3.
  • Page 27 4. Unscrew six philip screws on top to remove top cover to access this board. This balance potentiometer can be used to ZERO out the initial charge "IC" using STM-2. Each full turn (360°) will change the IC by about 30V. •...

  • Page 28: Warranty

    (1) year from date of invoice. ETS will, at its discretion either replace or repair without charge, F.O.B. Glenside, similar equipment or a similar part to replace any equipment or part of its manufacture which, within the above stated time, is proved to have been defective at the time it was sold.

  • Page 29: Appendix A - Method 4046.1

    APPENDIX A - Method 4046.1 - Electrostatic Properties of Materials METHOD 4046.1 - FED. TEST METHOD STD. NO. 101C - October 8, 1982 1. SCOPE 1.1 This test is used to determine the electrostatic properties of materials in film and sheet form by measuring the intensity and polarity of an induced charge and the time required for complete dissipation of the induced charge.
  • Page 30 water shower; one-third of the specimens in an atmosphere uniformly maintained at 73⁰ + 5⁰ and 50 + 5 percent relative humidity. 5.2 Unless otherwise specified, all specimens shall be placed in the electrostatic test chamber under conditions stated in 5.3 for a minimum of 24 hours immediately before testing, as specified in section 6.
  • Page 31 6.2.9 Charge each specimen three times for both positive and negative charges, allowing specimen to remain grounded for ten minutes after each charging cycle to remove any residual charge on the specimen. For nonhomogeneous materials, both surfaces shall be charged by reversing the face of the material in contact with the inner electrodes.

  • Page 32: Appendix B - Nfpa Code 99

    APPENDIX B – NFPA Code 99 National Fire Protection Association (NFPA) Code 99 – Standard for Health Care Facilities (1993): Paragraph 12-4.1.3.8 Reduction in Electrostatic Hazard Paragraph 4663 Antistatic sheeting, film and textiles shall meet the specific requirements of at least one of the following test methods when preconditioned at 50%, ±2% RH at 70º...

  • Page 33: Appendix C - Mil-Prf-81705D

    APPENDIX C - MIL-PRF-81705D Mil-PRF-81705D, – Barrier Materials, Flexible, Electrostatic Protective, Heat Sealable. (Applicable sections) Scope This specification covers opaque and transparent heat sealable, electrostatic free, flexible, barrier materials for the packaging of missiles, explosive powered and electro-sensitive devices, micro- circuits, semiconductors, thin film resistors, and associated airborne components.

  • Page 34: Appendix D - 4406 Controls And Connections

    APPENDIX D - 4406 Controls and Connections FRONT PANEL KEYBOARD A 2-section, 20-button keyboard utilizing replaceable long life, light-touch pushbuttons are used to control all functions. The 12-button section is used to program the Analyzer Functions of Static Decay (System currently limited to performing Static Decay test only), Charge Plate (CHG PLATE), and Charge Retention (CHG RETEN) [Future optional features.], manual or auto (MAN/AUTO)
  • Page 35 SYSTEM CHECK This key performs a system test using the STM-2 System Test Module. This Module has a fixed decay time and simulates a test sample when charged to 5.00kV and then grounded. The decay time to both the 10% and 1% cutoff levels are displayed individually and then the average + and average –...
  • Page 36 a: Non-dissipative sample b. Dissipative sample c. Dissipative undersize (“dog bone”) sample Figure 2.2-4: Static decay display in CHARGE mode DECAY TEST This key controls all static decay time measurements. Static decay time is measured to the selected cutoff each time the DECAY TEST key is depressed in the MAN mode. The High Voltage is applied to the sample holder electrodes and the shutter in the electrostatic sensor is opens (audible click).
  • Page 37 Figure 2.2-6: MANual mode decay time measurement AUTO mode: Depressing the DECAY TEST key will start a static decay time measurement sequence that is defaulted to 3 measurements at each polarity, however, up to 6 measurements each can be programmed. The test sequence always starts at +5.00kV and then switches –5.00kV.
  • Page 38 RETEST This key retests the prior measurement in the AUTO mode only. To stop the test sequence and hold the last measurement the ESC button on the 12-button keypad is depressed. Depressing the RETEST button retests the prior measurement (ex: if Hold at 3, RESTEST will be 2).
  • Page 39 PROG V When this key is depressed the Charging Voltage level can be programmed anywhere from 600-5,500V with 10V resolution and is so indicated on the display. V +/- Each time this key is depressed the polarity of the HVPS switches from + to - or from - to +. V ON/OFF Each time this key is depressed the HVPS is turned OFF and ON.
  • Page 40 Rear Panel Figure 2.4-1 shows the rear panel of the Model 4406 Control Unit. All input/output connections are made from the rear panel. Figure 2.4-1: Model 4406 Control Unit Rear Panel 2.4.1 POWER KEYPAD/COMPUTER toggle switch. This toggle switch is currently NOT IN USE.

  • Page 41: Appendix E - Electrode Configurations

    APPENDIX E - Electrode Configurations Caution: Make sure the length of the sample does not touch the cage cover when closed. This will cause the electrodes to short to the grounded cage and result in no voltage being applied to the sample. 7.1 Magnetic Electrodes Magnetic Electrodes are used to secure film and fabric samples plus the STM-2 to the base electrodes as shown in Figure 7-1.
  • Page 42 7.3 Loose Fill Electrodes Loose Fill Electrodes are used to test loose fill packing chips. Six chips are needed for each test sample array. The chips must be placed over the electrode points and rest on the shoulder as shown in Figure 7-3. This is necessary in order to make contact with the outer surface of the chip so that surface treated material will be properly tested.
  • Page 43 Figure 7-4: I.C. Shipping Tube Electrodes 7.5 Small Sample Electrodes The standard ETS Model 4406 Static Decay Analyzer is designed to test film, fabric and rigid samples having a nominal size of 3.5" x 5.5" (80 x 144mm). However, the electrodes can accommodate a flexible sample size down to 4.125"...
  • Page 44 Figure 7-6: Nondestructive Static Decay Test Fixture Installation of the 806B The Model 806B connects directly to the Control Unit of the Model 4406 in the same manner as the Faraday Cage. The sensor head is removed from the Faraday Cage by loosing the brass thumbscrew that retains the sensor in the clamp.
  • Page 45 Figure 7-7: Sensor alignment Secure the Sensor cable with the black cable clamp. Unplug all the cables going to the Control Unit from the Faraday Cage and plug the cables from the Model 806B into the corresponding connectors. Place the Model 806B on a metal plate and adjust the sensor spacing until the AC= voltage corresponds to the HIGH VOLTAGE being applied.
  • Page 46 To test liquids and powders place the product in a glass or other insulated container that is at least 8” x 6” (203 x 153mm) and approximately 1” (25mm) deep. Place the Fixture on the material and perform the test in the normal manner. The electrodes should not penetrate the material by more than approximately 1/8”...

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