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STATIC DECAY METER

Model 406D

Operating Manual

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Summary of Contents for 406D

Page 1: ...STATIC DECAY METER Model 406D Operating Manual 1 13...

Page 2: ...e and specified type such as normal blow time delay etc DO NOT use makeshift fuses or short the fuse holder This could cause a shock or fire hazard or severely damage the instrument POWER LINE VOLTAGE...

Page 3: ...in the presence of flammable gases or fumes constitutes a definite safety hazard For equipment designed to operate in such environments the proper safety devices must be used such as dry air or inert...

Page 4: ...PRF 81705D Barrier Materials Flexible Electrostatic Free Heat Sealable NFPA 99 is the test standard used for products used in the hospital operating room and for products used in hazardous environmen...

Page 5: ...operator manually steps the unit through the test sequence by operating the unit s mode select buttons In the Automatic Mode the operator selects the number of tests to be performed up to 9 and the t...

Page 6: ...N AUTO switch are indicated by panel markings above and or below each switch The state in the DOWN position button latched in is marked BELOW each switch When the POWER ON OFF button is UP the power i...

Page 7: ...the automatic test sequence and reset the DECAY TIME and AUTO mode counters to zero 2 2 4 1 CHG This momentary push button switch when activated places the unit in the CHARGE state In this state the...

Page 8: ...High Voltage Power Supply ON or OFF and determines the polarity The polarity buttons are dual function since they select the polarity of the charging voltage and turn the High Voltage Power Supply on...

Page 9: ...s a convenient interval time for most testing During the interval time the DECAY TIME display will hold and display the decay time of the last test and the AUTO mode counter will display the number of...

Page 10: ...illuminated automatically when a test has been completed and the CUTOFF threshold reached In the AUTO mode only the ZERO STBY and CHG indicators are controlled by the operator depressing the correspon...

Page 11: ...settable fuses To reset turn off unit for at least 20 seconds then turn back on If the system still does not operate contact ETS at 215 887 2196 for service Figure 2 4 1 Rear Panel Ser 877 forward 2 4...

Page 12: ...ctual discharge waveform will be displayed which begins with the second pulse The first pulse is the sensor self zero that is activated when the decay measurements begins The output level is an invert...

Page 13: ...test samples 3 0 OPERATION 3 1 Initial Set Up 1 Before connecting the Static Decay Meter to the AC line the four cables from the Faraday Cage must be connected to the Control Unit as shown in Figure...

Page 14: ...nt or tamper with the interlock system in any way NOTE For systems with Serial 877 and higher disregard this section Unless specifically requested the unit is set for 115 VAC operation If operation fr...

Page 15: ...will produce a full scale reading on the SAMPLE CHARGE meter NOTE There is an approximate 2 second delay after a polarity button has been depressed before the CHARGING VOLTAGE meter will read This is...

Page 16: ...nt cycles automatically including automatic zero calibration This mode cannot be used with samples that have an initial or a residual charge 3 3 1 Initial Set Up Follow the procedures outlined in Sect...

Page 17: ...l In the TEST state the Decay Time readout will be counting and the SAMPLE CHARGE meter reading will be decreasing toward zero The CHARGING VOLTAGE meter will read zero the HIGH VOLTAGE ON light will...

Page 18: ...d as a High Voltage ON OFF switch The HIGH VOLTAGE OFF button should be depressed whenever the Faraday Cage cover is lifted or when tests are not being conducted 3 3 4 STM System Performance Check To...

Page 19: ...s the case refer contact ETS for assistance 3 3 4 2 STM 2 Systems with Serial 878 or higher The STM 2 does not incorporate the banana plug Install the STM 2 directly into the electrodes in the Faraday...

Page 20: ...ld in place with the magnetic electrodes Using the clamp electrodes will result in a reading approximately 0 03 seconds lower This is due to the electrode effect described in Section 4 5 If the DECAY...

Page 21: ...the electrode points and rest on the shoulder as shown in Figure 3 4 3 This is necessary in order to make contact with the outer surface of the chip so that surface treated material will be properly...

Page 22: ...ple and bring it within view of the sensor To install first remove the magnetic or clamp electrodes if installed Place the 25 6mm slots over the threaded rods and secure with the thumbscrews or wing n...

Page 23: ...d in the same manner as the standard Faraday Cage except instead of clamping the sample to the electrodes the entire electrode assembly is placed onto the test surface Conductive rubber is used for th...

Page 24: ...d plug the cables from the Model 806B into the corresponding connectors Place the Model 806B on a metal plate and adjust the FULL SCALE Adjust until the voltage on the SAMPLE CHARGE meter corresponds...

Page 25: ...when an antistatic additive blossoms to the surface of a material over a period of time The following are some hints and additional test procedures that will help to understand the many factors affect...

Page 26: ...the test electrodes If the entire sample is insulative then when 5kV is applied the sample will not conduct a charge and when the sample is grounded depress TEST button the sample will not bleed off...

Page 27: ...rodes and discharge circuit is 50pF The discharge circuit incorporates a 10 MegOhm resistor that limits the fastest decay time to 1 to 1 25 milliseconds The relay switching time is approximately 3 mil...

Page 28: ...collapses and the SAMPLE CHARGE meter drops instantly to some voltage slightly above the 1 cutoff level typically about 1 200V In this case the clock will continue to run Note The amount of accepted c...

Page 29: ...Faraday Cage Retighten the retaining clamp screw When testing static dissipative or conductive composite or laminated films use a known good sample to adjust the full scale using the adjust control if...

Page 30: ...replace or repair is the only warranty either expressed or implied or provided by law and is in lieu of all other warranties The Seller denies any other promise guarantee or warranty with respect to t...

Page 31: ...trometer for measuring volts amperes and ohms with a full scale reading of 0 01 0 1 10 and 100 or an oscilloscope with a response of 1 microsecond per division or equivalent 3 4 Electrostatic test cha...

Page 32: ...ed in the operations manual for the particular item 6 1 2 Set multiplier switch of the electrometer at 10 and the operate switch at zero check 6 1 3 Close the ground switch and adjust the high voltage...

Page 33: ...eed of the chart known calculate the decay time for each specimen 7 0 Report 7 1 Report the facts pertinent to the test 7 1 1 State that the test was conducted in accordance with this procedure or des...

Page 34: ...and tested at 50 2 RH at 70 3 5 F 1 Method 4046 of Federal Test Method Standard 101C After the specimen has received its maximum charge from the application of 5000 volts the time for the indicated sp...

Page 35: ...onducted in accordance with the specified methods of Fed Test Method Std 3010 Electrostatic Properties Method 4046 per Note 7 Note 7 Preparation of the test specimens shall be as follows Five 3 by 5 i...

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