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12 

 

Fuse Replacement 

 
There  is  a  user-replaceable  fuse  (F1)  located  on  the  rear  panel  of  the  instrument.    It  is  located 
behind a door in the Power Inlet-Power Switch-Fuse Holder device.  The fuse rating is noted on 
the  rear  panel,  and  also  listed  in  the  Specifications  section  of  this  manual.    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 O or 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 door and power inlet cord.   

 

Front and Rear Panel Features 

 
Before  using  your  tester,  take  a  few  minutes  to  become  familiar  with  the  use  of  its  controls, 
indicators and connectors.  The front panel features of the MegaPulse are shown in Figure 3 and 
described  in  Table  1.    The  rear  panel  features  of  the  MegaPulse  are  shown  in  Figure  4  and 
described in Table 2.

Содержание MegaPulse

Страница 1: ...MegaPulse IMPULSE TESTER 1 2x50 16PF PV Instruction Manual...

Страница 2: ...gn 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...

Страница 3: ...3...

Страница 4: ...Testing Area 6 Safety Techniques 7 Using the MegaPulse Impulse Tester 7 Introduction 9 Operation 11 Setting up your Tester 11 AC Line Voltage Requirements 11 Fuse Replacement 12 Front and Rear Panel...

Страница 5: ...5...

Страница 6: ...re that 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 especial...

Страница 7: ...er test from the MegaPulse until the front panel meter reads a safe level 40 volts or less is generally considered a safe level Pressing the TRIGGER button before disconnecting main power or turning t...

Страница 8: ...5 Ohms and the MegaPulse is capable of delivering thousands of Amps of current into a short circuit While the MegaPulse can withstand a short circuit at the output terminals it should NOT be used in t...

Страница 9: ...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 purchaser Specifications Output Peak 800V 16kV To...

Страница 10: ...follow test sequences varying test voltage and time between tests and keep a record with test information Compatible with Windows 32bit platform 220 230 or 240 If a different line voltage is desired...

Страница 11: ...e use the original shipping container If the original shipping container is not available be sure that adequate protection is provided to prevent damage during shipment We recommend that the instrumen...

Страница 12: ...h to the O or 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 f...

Страница 13: ...13 Figure 3 Controls Indicators Connectors MegaPulse 1 2x50 16PF PV Front Panel...

Страница 14: ...been pressed 5 CHARGE indicator This Yellow indicator is lit to show that pressing the CHARGE switch is the next logical step in a test sequence Pressing the Charge switch causes the CHARGE indicator...

Страница 15: ...ied cordset to connect the MegaPulse tester to appropriate source of supply Fuse holder provides access for Fuse replacement and the Power Switch is used to turn the tester ON and OFF 2 Fuse replaceme...

Страница 16: ...setup it is possible to see very large common mode noise which can be mis interpreted as high frequency noise on the front edge of the impulse waveform Figure 5 shows a test setup to measure common m...

Страница 17: ...17 Figure 5 Common mode noise measurement setup Figure 6 Common mode noise Figure 7 Common mode noise superimposed on the output waveform...

Страница 18: ...nds on the front meter Turn Clockwise to increase the setting Voltage Setting Point 7 Push the yellow CHARGE button Verify the red TRIGGER indicator is now lit 8 After the front panel meter indicates...

Страница 19: ...voltage is present on the main storage capacitor even when the tester is first turned ON This is due to inherent charging of the internal capacitors Pressing the TRIGGER switch will discharge the cap...

Страница 20: ...n Information The Megapulse 1 2x50 16PF PV has been fully calibrated at the factory in accordance to our published specifications It is recommended that you have this instrument re calibrated and safe...

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