Megaimpulse Ltd. NPG-15/2000 User Manual Download Page 10

 

Step 5. 

Switch  on  the  high  voltage  by  HV  ON/HV  OFF  switch.  The  output  high  voltage 
pulses  should  be  generated.  Increase  the  amplitude  and  frequency  by 
corresponding  knobs  as  necessary.  The  output  pulses  frequency  in  internal 
triggering  mode  is  about  proportional  to  the  rotation  angle  of  FREQUENCY 
regulation  knob.  The  output  pulses  amplitude  increases  slightly  while  you  rotate 
AMPLITUDE  knob  from  the  most  counterclockwise  position  to  the  middle 
position and then increases faster while you rotate the knob to the most clockwise 
position.  
 

Step 6. 

Always stop the operation of the generator by HV ON/HV OFF switch, after that 
you can switch off the generator by power switch. Do not toggle EXT/INT switch 
while  high  voltage  is  on.  After  long  time  of  operation  at  high  output  pulse 
amplitude and frequency please allow fans to rotate several minutes in idle mode 
for cooling. 
 

MEGAIMPULSE LTD.                                                                                                8

 

Summary of Contents for NPG-15/2000

Page 1: ...NANOSECOND PULSE GENERATOR NPG 15 2000 N USER MANUAL 2013 Megaimpulse Ltd...

Page 2: ...ROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATION ONLY AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE AND SH...

Page 3: ...manual 3 Technical specification 4 Front and rear panels view 5 Putting the generator into operation 6 Overheat mode 9 Triggering of the generator 9 Recommended optical transmitters for external trig...

Page 4: ...he following items NPG 15 2000 N nanosecond pulse generator hereinafter generator Power supply cable High voltage output coaxial cable Two optical cables User manual Fig 1 General view of NPG 15 2000...

Page 5: ...witch is switched off and power supply cable is unplugged before the output cable is connected or disconnected Please connect or disconnect any equipment toggle generator from internal to external tri...

Page 6: ...or Pulse polarity positive NPG 15 2000 negative NPG 15 2000N Pulse rise time 0 1 0 9 Umax 4 ns Max pulse energy 30 mJ Peak pulse power 4 5 MW Repetition rate up to 3 2 kHz Triggering internal or exter...

Page 7: ...nnector and fuse holder 4 HV ON HV OFF high voltage on off switch 5 EXT INT external internal triggering switch 6 optical SYNC OUT connector 7 overheat LED 8 AMPLITUDE regulation knob 9 FREQUENCY regu...

Page 8: ...ors is very important for normal operation of the generator Even small air gap between the connectors may result in arcing destroying of the generator and the cable To obtain good and tight contact th...

Page 9: ...and significant reducing of the pulse voltage on the load Fig 2 The cone teflon insulator at the cable end The length of coaxial cable is about 3 meters Shorter cable may result in damage of the gener...

Page 10: ...reases slightly while you rotate AMPLITUDE knob from the most counterclockwise position to the middle position and then increases faster while you rotate the knob to the most clockwise position Step 6...

Page 11: ...energy reflected from the load check the amplitude of the secondary and following pulses by oscilloscope with high voltage probe connected to the load You should use 500 MHz or more bandwidth oscillo...

Page 12: ...ITORING NPG 15 2000 N is equipped by optical connector for external triggering and output pulse monitoring AVAGO HFBR 1522Z and HFBR 2522Z transmitters as well as AVAGO HFBR 4501 HFBR 4511 connectors...

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