Kenwood VT-187 Multimètre analogique
Fabricant:
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Modèle:
VT-187
Date:
1998
Catégorie:
Groupe:
Description:
2ch AC Voltmeter
Information
General
A Signal voltage to be measured, which is input from the
INPUT connector, is passed through the First Attenuator
and is converted to a low impedance by the Impedance
Converter. The impedance-converted signal is normalized,
or further attenuated in proportion to 1mV rms fullscale
value through the Second and Third Attenuator. The
normalized signal is magnified 20-fold by the Main Amplifier
and is fed to the Output Amplifier and the Absolute-Mean
Value Detector.
The Output Amplifier magnifies the signal 50-fold and feeds
to the OUTPUT connector. The Absolute-Mean Value
Detector converts the signal from the Main Amplifier to DC
current in proportion to the absolute mean value. The
converted signal activates the Meter.
The Attenuator Control encodes the signal led from the
RANGE selector to generate an Attenuator Control signal.
This signal controls the First, Second and Third Attenuator
to set the sensitivity corresponding to each range.
The Power supply feeds to the functional circuit ±5V DC
voltages stabilized by its IC regulator.
Type manuel:
manuel de réparation
Pages:
28
Taille:
1.29 Mbytes (1353153 Bytes)
Langue:
english
Révision:
Manuel-ID:
B51-1134-00
Date:
1998 08 01
Qualité:
Électronique de documents, numérisation sans, bien lisible.
Date de transfert:
2018 05 20
MD5:
44badf01da2517d71621901ed56eaf28
Téléchargements:
1883
Information
SPECIFICATIONS
... 3
SAFETY
... 4
CIRCUIT DESCRIPTION
... 5
BLOCK DIAGRAM
... 6
ADJUSTMENT
... 7
PARTS LIST
(UNIT) ... 10
PARTS LIST (ELECTRICAL)
... 11
SCHEMATIC DIAGRAM
... 16
P.C. BOARD
... 26