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13 

 

Section 6

 

Maintenance and Calibration 

 

WARNING 

MAINTENANCE AND CALIBRATION INSTRUCTIONS ARE FOR QUALIFIED PERSONNEL ONLY.  TO 

AVOID ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN THE CONTAINED IN 

THE OPERATING INSTRUCTIONS.

 

 

Introduction 

 
This section of the manual contains maintenance information for the MegaPulse 1.2x50/8x20-2PF-HR impulse tester. 
A 1-year calibration cycle is recommended to maintain the specifications of the factory.  The test equipment required 
for the performance test is a digital oscilloscope, high voltage oscilloscope probe, current monitor, digital meter and 
a high voltage probe. 
 

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 postpaid to the manufacturer.  Dated proof of purchase is required for all in-warranty 
repairs.  The manufacturer is also available for calibration and / or repair of instruments that are beyond their warranty 
period.    Contact  the  manufacturer  for  a  cost  quotation.    Ship  the  instrument  and  your  remittance  according  to  the 
instructions given by the manufacturer.

 

 

General Maintenance 

 

To  avoid  contaminating  the  PWB  with  oil  from  your  fingers,  handle  it  by  the  edges  or  wear  gloves.    If  the  PWB 
becomes contaminated, refer to the cleaning procedures given later in this section

.

 

 

WARNING

 

Dangerous voltages exist when energized.  Exercise extreme care when working on an energized circuit.

 

 

Cleaning 

 

Clean the front panel and case with a mild solution of detergent and a damp sponge. Clean dust from the PWB with 
clean, dry, low pressure (<20 psi) 

 

CAUTION 

Do not use aromatic hydrocarbons or chlorinated solvents for cleaning.  These solutions will react with the 

plastic materials used in the instrument.

 

 
 

Calibration Information 

 

The Calibration Procedure should be performed annually and any time the instrument has been repaired.  
The calibration procedure should be performed at an ambient temperature of  23

5

C (73.4

9

F). 

The procedure consists on internal components tolerance verification and calibrating the meter reading to 
agree with the capacitor bank. The Calibration procedure must be performed by qualified personnel, for 
more information contact Compliance West USA. 
 
 
 
 
 
  

 

Summary of Contents for MegaPulse 1.2x50/8x20-2PF-HR

Page 1: ...Instruction Manual ...

Page 2: ...i ...

Page 3: ...cuit design 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 Rev 3 March ...

Page 4: ...iii ...

Page 5: ...tion 4 8 Controls and Indicators 8 Front Panel Features 8 Figure 1 Front Panel Features and Control 8 Rear Panel Features 9 Figure 2 Rear Panel Features and Controls 9 Section 5 10 Operating Instructions 10 External Interlock 10 Front Keyboard and Voltage Knob Enable 10 Discharging Residual Voltage 10 Polarity Pulse Selection 11 Voltage Set Point Adjustment 11 Charge and Trigger a Pulse 11 Pulse V...

Page 6: ...1 ...

Page 7: ...d 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 impulse test should be as remote as possible from normal production line activities Only personnel conducting th...

Page 8: ...nd then left alone by the operator After the operator is clear of the Tester and the equipment under test the operator should turn the rear panel power switch to ON For Manual Operation press the Voltage Knob and set the desired voltage then press CHARGE Button after charge stops at set voltage operator can press the TRIGGER Button with his right hand This will allow the greatest separation betwee...

Page 9: ...he high voltage will appear on the OUTPUT as a positive pulse relative to the RETURN jack When the polarity switch is in the Reverse position REV indicator is lit the high voltage will appear on the OUTPUT as a negative pulse relative to the RETURN jack The polarity switch only operates when the CHARGE LED is lit i e the output is not charged Note that the peak amplitude of the measured output wav...

Page 10: ... servicing or calibration repackage the instrument in its original container please include all accessories and test leads Indicate the nature of the problem or type of service needed Also please mark the container as FRAGILE to insure proper handling If you do not have the original packaging materials please follow these guidelines Wrap the instrument in a bubble pack or similar foam including al...

Page 11: ... Do not attempt to replace it with a fuse of any other rating Use the following procedure to replace the fuse F1 1 Turn the power switch to the OFF position 2 Unplug the instrument from the source of supply 3 Remove the power inlet cord from the instrument 4 Using a small screwdriver pry open the fuse holder door 5 Replace the fuse with a new one of the correct rating 6 Replace the fuse holder doo...

Page 12: ...duty cycle 1 pulse every 20s max Output Impedance 2 ohms and 12 ohms Output Impedance Selector Front Panel Switch Resolution 10 200V 0 1V Resolution 200V 2000V 1V Safety Interlock with discharge network Weight 43 lbs approximated Dimensions 17 Wide x 17 Depth x 11 Height Waveform Tolerances Table 1 Tester Waveform Tolerances Parameter Output Specification Tolerance Comments Open Circuit Voltage Pe...

Page 13: ...ative to the return jack The polarity switch only operates when the CHARGE indicator is lit and the voltage on the display meter is less than 180V 3 NOR REV indicator Indicates the state of the Output Polarity switch NOR indicates Normal Positive position REV indicates Reverse Negative position 4 CHARGE switch Starts the charge process of the tester capacitor The CHARGE indicator will turn off aft...

Page 14: ...GGER indicator will go out after pressing TRIGGER button TRIGGER and CHARGE Indicators will be blinking if the Interlock Switch is open 8 VOLTAGE meter Displays the output voltage set point The voltage reading will increase from zero to the voltage set point when the CHARGE button is pressed The Display is measuring the voltage on the main impulse storage capacitor If keyboard is locked the displa...

Page 15: ...ions When the Interlock is closed it enables all normal operations of the MegaPulse features Front Keyboard and Voltage Knob Enable If the MegaPulse 1 2x50 8x20 2PF HR Tester has disabled the keyboard or Voltage Knob it is possible to enable them by using the next keyboard sequence 1 Turn OFF the MegaPulse P tester 2 Press and hold the TRIGGER and NOR REV buttons 3 Turn ON the MegaPulse tester 4 W...

Page 16: ...gits are blinking turn the VOLTAGE Adjust knob clockwise or counterclockwise to change the value of the blinking digits 5 After a few seconds without any change on the VOLTAGE Adjust knob the desired output voltage will be set Charge and Trigger a Pulse The following procedure will explain how to generate a high voltage pulse with the MegaPulse unit The MegaPulse 1 2x50 8x20 2PF HR Tester is capab...

Page 17: ... test lead black into the Return jack located on the front panel 6 Plug the high voltage test lead red into the output jack located on the front panel 7 Connect the ends of the test leads to the measuring instrument See Figure 4 for an example 8 Set the next capturing setting on the digital oscilloscope to capture the high voltage pulse a Vertical Scale 100V div b Horizontal Scale 10uS div c Trigg...

Page 18: ...re beyond their warranty period Contact the manufacturer for a cost quotation Ship the instrument and your remittance according to the instructions given by the manufacturer General Maintenance To avoid contaminating the PWB with oil from your fingers handle it by the edges or wear gloves If the PWB becomes contaminated refer to the cleaning procedures given later in this section WARNING Dangerous...

Page 19: ...the Voltage Stop by the PC command activated it is possible to disable it using the next keyboard sequence Note Disabling Voltage Stop enables the keyboard Turn OFF the MegaPulse P tester Hold in the TRIGGER and NOR REV buttons Turn ON the MegaPulse P tester Wait until the display shows rESE Release the TRIGGER and NOR REV buttons ...

Page 20: ...nce West USA is available Phone 800 748 6224 Hours 8 00 AM 4 00 PM Pacific Time Also available on our web site at www compwest com Contact Compliance West USA 650 Gateway Center Way Suite D San Diego CA 92102 United States of America Phone 619 878 9696 FAX 619 794 0404 ...

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