Compliance West MegaPulse 2x10s-2.5 Instruction Manual Download Page 25 | Manualshive

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Section 4

Technical Assistance

For Technical Assistance
Phone: (800)

748-6224

Technical Assistance is available from Compliance West USA between
the hours of 8:30 AM and 5:00 PM Pacific Time.

Compliance West USA
7915 Silverton Ave. #315
San Diego, CA 92126

Phone: (858)

860-0277

FAX:

(858) 860-0279

Technical information is also available on our web site at:
www.compwest.com

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Summary of Contents for MegaPulse 2x10s-2.5

Page 1: ...i MegaPulse series Impulse Tester Instruction Manual COMPLIANCE WESTUSA ...

Page 2: ...esign and ergonomic front panel and represents the latest in high voltage impulse testing To fully appreciate all the features of your new instrument we suggest that you take a few moments to review this manual Compliance West USA stands by your instrument with a full one year warranty If the need arises please don t hesitate to call on us Thank you for your trust and confidence ...

Page 3: ...s MegaPulse series Rear Panel 10 Table 3 Control Indicators Connectors MegaPulse series Rear Panel 11 Figure 4 Controls Indicators Connectors MegaPulse series Breakdown Detection 12 Initial Checkout Procedure 14 Testing 15 TestMinder Operation 16 EN60335 Pulse Trains 16 Breakdown Detection Circuit Option 16 Sensitivity setting using known good and known bad samples 16 Approximate Sensitivity Setti...

Page 4: ...iv ...

Page 5: ...at high voltage is adept and creative at completing a path to ground Instructions should include a warning against any metal jewelry Operators should not allow others in the testing area especially when tests are being conducted Organization is to be stressed The operator should keep the area free of unused leads and equipment Testing Area The area used for conducting the dielectric withstand test...

Page 6: ...dered a safe level Pressing the TRIGGER button before disconnecting main power or turning the equipment off will ensure that the internal capacitors are discharged as much as possible Using the MegaPulse Impulse Tester The impulse withstand test involves high voltage and caution should be exercised when using the Tester The RETURN lead is referenced to building ground when properly connected Howev...

Page 7: ...m multiple impulse tests on a few different test samples that have adequate insulation to pass the impulse test Take note of the impulse waveshape amplitude and duration Also note how much variance there is in the waveshape from test to test Also if possible perform impulse testing on some test samples that are known to have inadequate or damaged insulation Take note of the impulse waveshape ampli...

Page 8: ......

Page 9: ...ssing the CHARGE Button The test will not begin until the TRIGGER Button is pushed Operator instructions are printed on the rear panel for quick reference Voltage is discharged by a resistor bank within the MegaPulse tester upon test completion Discharge progress is shown on the front panel meter Your Tester is warranted for a period of one year upon shipment of the instrument to the original purc...

Page 10: ... 60 Hz Input Current 1 7 A model specific Mechanical Weight Approx 16 85 lbs Dimensions 11 25 W x 12 D x 5 H To 24 W x 20 D x 36 H Table 1 MegaPulse series specifications Model Waveform Max Voltage C1 R1 R2 C2 R3 10x700 2 5 10 x 700 6 x 300 uS 2500V 20 uF 50 Ohms 15 Ohms 0 2 uF 25 Ohms 10x700 7 10 x 700 6 x 300 uS 7000V 20 uF 50 Ohms 15 Ohms 0 2 uF 25 Ohms 1 2x50 2 5 1 2 x 50 1 x 20 uS 2500V 1 uF ...

Page 11: ...different voltage source Selection of a Suitable Power Cord The cord packaged with your MegaPulse Tester is for use in the United States If another power cord must be used the cord must be rated for the maximum current noted on the rear panel It must also meet the requirements of IEC 227 or IEC 245 and mains cords that are certified or approved by any recognized national test house are regarded as...

Page 12: ...8 Figure 2 Controls Indicators Connectors MegaPulse series Front Panel ...

Page 13: ...g the TRIGGER switch is the next logical step in a test sequence This indicator will turn on after the CHARGE switch is pressed and will remain on until the TRIGGER switch is pressed Pressing the TRIGGER switch causes the TRIGGER indicator to go out 8 Voltage meter Displays the output voltage set point This voltage is the open circuit peak voltage that will appear across the output leads when the ...

Page 14: ...10 Figure 3 Controls Indicators Connectors MegaPulse series Rear Panel ...

Page 15: ... and OFF 2 Fuse replacement warning Rating of supply Specifies replacement fuse and required supply voltage 3 Directions Provides directions for Tester operation to test personnel 4 Voltage Adjust Used to adjust the High Voltage output as an alternative to the front panel Voltage Adjust knob Turn Clockwise to increase the output voltage after the CHARGE button has been pressed Turn the adjustment ...

Page 16: ...12 Figure 4 Controls Indicators Connectors MegaPulse series Breakdown Detection ...

Page 17: ...int 2 Fail Light Indicates Arc and or Leakage Current through insulation higher than Sensitivity Control s setpoint 3 Sensitivity Control Sets Pass Fail point for the Breakdown Detection circuit See Breakdown Detection Circuit for details in control operation Table 4 Control Indicators Connectors MegaPulse series Breakdown Detection ...

Page 18: ...turn leads when pressing the trigger switch 6 Push the yellow CHARGE button Verify the red TRIGGER indicator is now lit 7 Adjust the VOLTAGE knob so that the front panel LED display is reading a voltage that is suitable for the measuring instrument that is being used Push the red TRIGGER button and view the resulting impulse waveform on the measuring instrument 8 Note that the peak amplitude of th...

Page 19: ...the test leads to the optional 1000 1 voltage sense jack on the front panel if provided Alternatively connect an appropriate measuring instrument typically an oscilloscope with a high voltage probe to the equipment under test in order to monitor the results of the impulse test Note that the RETURN lead is referenced to the chassis of the MegaPulse tester 5 Turn the Tester on Toggle the POLARITY sw...

Page 20: ...l If these samples are not available a starting setpoint can be set with the supplied calibration resistor 50 ohms Sensitivity setting using known good and known bad samples 1 Remove power to the MegaPulse and turn the Voltage Control to zero Turn the Sensitivity Control to the maximum setting i e the knob pointer at 5 o clock 2 Using the supplied High Voltage Test leads connect the known bad samp...

Page 21: ...uct will cause the voltage on the oscilloscope to rise to 1 Volt ref 60101 1 clause 17h Note that this voltage does not have the same waveshape as the defibrillation pulse The measurement point has a voltage rise time constant of 2 mSec derived empirically The decay time of the measurement point is driven by the impedance of the oscilloscope which is typically 1 MegOhm In this case the decay time ...

Page 22: ...18 Figure D 1 Defib 5 Connections 1 ...

Page 23: ...19 Figure D 2 Y1 Y2 Test Output 1 ...

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Page 25: ...hnical Assistance is available from Compliance West USA between the hours of 8 30 AM and 5 00 PM Pacific Time Compliance West USA 7915 Silverton Ave 315 San Diego CA 92126 Phone 858 860 0277 FAX 858 860 0279 Technical information is also available on our web site at www compwest com ...

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Page 27: ...he maximum specified peak output voltage of the MegaPulse tester Service Information The MegaPulse tester is warranted to the original purchaser for a period of 1 year This warranty does not cover problems due to misuse or neglect Malfunctions which occur within the limits of the warranty will be corrected at no charge Mail the instrument post paid to the manufacturer Dated proof of purchase is re...

Page 28: ...scope with a high voltage probe Note that the RETURN lead is referenced to the chassis of the MegaPulse tester 4 Turn the Tester on Toggle the POLARITY switch if necessary so that the NOR indicator is lit 5 Note that the Voltage meter may indicate that some residual voltage is present on the main storage capacitor even when the tester is first turned ON This is due to inherent charging of the inte...

Page 29: ...ances will have a significant effect on the high current output waveform If the measured waveform is significantly different than the ideal waveform then additional evaluation and or repair of the MegaPulse tester is warranted 18 Repeat steps 14 through 17 except this time toggle the POLARITY switch so that the REV indicator is lit Note that the impulse waveform will now be a negative pulse so it ...

Page 30: ...itive the black test point is negative 4 Press the CHARGE button Use the VOLTAGE adjustment knob to increase the output voltage to near the maximum rated peak output voltage of the MegaPulse tester 5 Using a non conductive screwdriver adjust R7 so that the voltage reading on the front panel LED display agrees with the voltage reading on the DC voltage meter 6 Turn the VOLTAGE adjust knob back down...

Page 31: ...0 and 90 points on the leading edge of the waveform intersects the V 0 line Figure 7 Calculated theoretical Voltage duration based on a computer simulation using the ideal component values The duration is defined per ANSI IEEE C62 41 and other standards as the time between virtual origin and the time of the 50 pint on the tail The virtual origin is the point where a straight line between the 30 an...

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