Valhalla Scientific Inc. 2701 C Calibrador
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Modelo:
2701 C
Data:
1985
Categoria:
Grupo:
Descrição:
Programmable Precision DC Voltage Calibrator
Tipo de manual:
Serviço e Manual do Usuário
Páginas:
68
Tamanho:
2.85 Mbytes (2991588 Bytes)
Idioma:
english
Revisão:
ID de manual:
Data:
1985 12 01
Qualidade:
Scaned documento, todas legível.
Data de upload:
2017 04 14
MD5:
fa5357fb44080b455e35e6477e37e7cc
Downloads:
937
Informação
. ... 9-2
9.3.3
Finding the Faulty Component. ... 9-2
SECTION X - THEORY OF OPERATION
10.1 General. ... ... 10-1
10. 2 Functional Description* ... .: ...
10-1
10.2.1 Microprocessor ... 10-1
10. 2. 2 IEEE ... ... 10-1
10.2.3 Display ... ... 10-1
10.2.4 Keyboard ... ... 10-1
10.2.5 D-to-A Convertor ... 10-1
10.2.6 Relay Dr ... 10-1
10.2.7 Sense Feedback ... ... 10-2
10. 2. 8 Output Dr i ve ... 10-2
10.2.9 Current Drive ... ... 10-2
10.2.10 Power supply ... . ... ... 10-2
10. 3 Detailed Description. ... . ... 10-2
10.3.1 Microprocessor ... ... ...
10-2
10.3.2 IEEE ... ... ... 10-3
10.3.3 Display ... ... 10-4
10.3. 4 Keyboard. ... 10-4
10.3.5 D-to-A Convertor ... ... 10-4
10.3.6 Relay Drives ... ... ... 10-5
10.3.7 Sense Feedback ... ... 10-5
10. 3.8 Output Drive ... ... 10-6
10.3.9 Current Drive ... ... ... 10-6
10.3.10 Power supply ... ... ... 10-6
10. 4 Relay Select ions ... ... ... 10-7
10.5 Operation of Microprocessor Software ... 10-8
10.5.1 Power-on Reset Routine ... ... 10-8
10.5.2 Main Executive Duties ... ... 10-8
10.5.3 Interrupt Routines ... ... 10-9
10.5.4 Individual "Action" Routines ... 10-9
SECTION XI ~ PERFORMANCE VERIFICATION
General. ... ... 11-1
Verification of Operation. ... 11-1
Ver ificat ion of Specification. ... .. . 11-1
SECTION XII - USEFUL HINTS
12.1
Getting the Most Out of Your 2701C ... 12-1
12. 2
Dielectric Storage in Cabling ... ... 12-2
LIST OF FIGURES
Figures are inserted in this manual at the end of the
corresponding
section.
Figure
1-1
AC Power Voltage Selection
Figure
4-1
Front Panel Controls and Connectors
Figure
5-1
Rear Panel Controls and Connectors
Figure
6-1
Using the 2701C to calibrate a Voltmeter
Figure
10-1
Block diagram of the 2701C
Figure
10-2
Simplified Output and Sense System
SECTION XIII - MANUAL CHANGE INFORMATION
SECTION XIV - SCHEMATIC AMD ASSEMBLY DIAGRAMS
2701-403
2701-404
2701-075
2701-605
2701-076
2701-606
2701-077
2701-607
2701“405
(1
sheet )
Chassis Assembly
(1
sheet )
Rear Panel Assembly
(4
sheets)
Main PCB Schematic
(1
sheet)
Main PCB Assembly
(1
sheet)
Display PCB Schematic
(1
sheet)
Display PCB Assembly
(1
sheet)
IBBE/lRP PCB Schematic
(1
sheet)
IEEE/lRP PCB Assembly
(1
sheet)
IEEE/lRP Installation Assembly
SECTION XV ~ PARTS LISTS
2701-403
(3
sheets)
Chassis Assembly
2701-404
(1
sheet)
Rear Panel Assembly
2701-605
(6
sheets)
Main PCB Assembly
2701-406
(2
sheet)
Option IT-2
2701-606
(2
sheets)
Display PCB Assembly
2701-607
(2
sheets)
IEEE/lRP PCB Assembly
2701-405
(1
sheet)
IEEE/lRP Installation Assembly