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DISTORTION M E T E R
HM-250
INSTRUCTION MANUAL
K E N W O O D
C O R P O R A T I O N
© P R I N T E D IN
* N

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Summary of Contents for Kenwood HM-250

  • Page 1 DISTORTION M E T E R HM-250 INSTRUCTION MANUAL K E N W O O D C O R P O R A T I O N © P R I N T E D IN...
  • Page 2: Table Of Contents

    C O N T E N T S G E N E R A L F E A T U R E S S P E C I F I C A T I O N S P A N E L E X P L A N A T I O N P R E C A U T I O N F O R...
  • Page 3: G E N E R A L

    G E N E R A L F E A T U R E S T h e m o d e l H M - 2 5 0 i s a p r e c i s i o n d i s t o r t i o n m e t e r .
  • Page 4: S P E C I F I C A T I O N S

    S P E C I F I C A T I O N S [ A C V o l t a g e M e a s u r e m e n t ] [ D i s t o r t i o n R a t e M e a s u r e m e n t ] R a n g e o f...
  • Page 5 S t o r a g e t e m p e r a t u r e a n d h u m i d i t y : O u t p u t i m p e d a n c e : A p p r o x . 2 .
  • Page 6: Panele X P L A N A T I O N

    PANEL E X P L A N A T I O N...
  • Page 7 ® P o w e r S w i t c h • ( j b - O N / J B . O F F ) e a s y f r e q u e n c y a d j u s t m e n t d i s p l a y i n g L i s s a j o u s p u s h - b u t t o n...
  • Page 8: P R E C A U T I O N F O R U S E

    OPERATING PROCEDURE P R E C A U T I O N F O R U S E © P o w e r n o t a p p l y e x c e s s i v e l y h i g h v o l t a g e t h e...
  • Page 9 tOOkO. T h e i m p e d a n c e t h e i n p u t t e r m i n a l A T T S e t t i n g M a x . I n p u t V o l t a g e T h e...
  • Page 10 I A T T s w i t c h . In t h e e x a m p l e s h o w n F i g . 1 , O d B These two buttons are pressed. j o n t h e m e t e r...
  • Page 11 T u n i n g r o w ( w i t h l a m p O N ) i n d i c a t e t h e r a n g e f o r d i s t o r t i o n r a t e m e a s u r e m e n t .
  • Page 12 , t u n i n g ( A m p l i f i e r , etc.) HM-250 generator Oscilloscope r e q u i r e d .
  • Page 13 level p r o p e r l y t h r o u g h c a l i b r a t i o n d e s c r i b e d 6 - 2 — ( 1 ) a v o i d s a t u r a t i o n t h e...
  • Page 14 i s 7 4 d B ( 5 0 0 0 t i m e s ) t h e O . f m V r a n g e , - 4 6 d B ( 0 . 0 0 5 t i m e ) t h e 1 0 0 V r a n g e .