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HIGH S E N S I T I V I T Y ELECTRONIC VOLTMETER
1.
GENERAL
2.
FEATURES
3.
RATINGS
4.
C I R C U I T DESCRIPTION
5.
OPERATING
6.
HOW
TO READ METER SCALE INDICATION
7.
CAUTION ON HANDLING THE SET
$ T R I O
Manufactured by TRIO ELECTRONICS INC., TOKYO, JAPAN
€ )
3 3 8 7
INSTRUCTION MANUAL
MODEL
C O N T E N T S
INSTRUCTIONS
P R I N T E D
FOR
VT-106
IN J A P A N B 5 0 - 0 1 2 6 - 0 0 ( K 0 ) @
Page
1
1
1
3
5
7
9
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Summary of Contents for Trio VT-106
- Page 1 INSTRUCTIONS TO READ METER SCALE INDICATION CAUTION ON HANDLING THE SET $ T R I O Manufactured by TRIO ELECTRONICS INC., TOKYO, JAPAN € ) 3 3 8 7 P R I N T E D IN J A P A N B 5 0 - 0 1 2 6 - 0 0 ( K 0 ) @...
- Page 2 GENERAL TRIO model VT-106 i s an e l e c t r o n i c v o l t m e t e r w i t h a s c a l e c a l i b r a t e d i n rms v a l u e .
- Page 3 M e a s u r i n g r a n g e s V o l t a g e ( 1 2 r a n g e s ) 0.02 mV ~ 300 V ( F u l l s c a l e s o f O.OOl/ 0.003/0.01/0.03/0.1/0.3/1/3/10/30/100/ 300) - 80 ~ +...
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Page 4: Circuit Description
P i g . 1 a n d t h e c i r c u i t d i a g r a m i n F i g . 4. Fig.I VT-106 BLOCK DIAGRAM ( 1 ) ATTENUATOR ( I ) - Page 5 i n p u t c i r c u i t i s a h i g h i n p u t — i m p e d a n c e c i r c u i t e m p l o y i n g ( 2 S k l 3 - l ) .
- Page 6 c i r c u i t and a m e t e r (DC i n t e r n a l r e s i s t a n c e 850 T h i s c i r c u i t c a u s e s t h e meter t o d e f l e c t i n p r o p o r t i o n t h e mean v a l u e of t h e i n p u t waveform.
- Page 7 ® POWER : T h r o w i n g t h i s s w i t c h i n t o t h e upper p o s i t i o n t u r n s on t h i s s e t and neon p i l o t lamp glows t o i n d i c a t e t h a t t h e s e t i s p l a c e d i n t h e r u n n i n g c o n d i t i o n .
- Page 8 117 and 230 V f o r 50 or 60 Hz. ( 2 ) OPERATIONS ( 2 ) - 1 Throw t h e POWER s w i t c h i n t o t h e upper p o s i t i o n t o t u r n on t h e s e t .
- Page 9 The v o l t a g e s c a l e i s c a l i b r a t e d w i t h b l a c k double g r a d u a t i o n s marked, t o g e t h e r w i t h t h e i r r e s p e c t i v e f i g u r e s , o v e r r a n g e s O ~~ 10 ®...
- Page 10 i s a g e n e r a l p r a c t i c e f o r a v o l t m e t e r i n d i c a t i n g a mean v a l u e t o s e t t h e l e v e l , a t w h i c h a v o l t a g e o f 0 .
- Page 11 Fig-4 VT-106...
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