Fluke 1900A Contador de frecuencia
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Fluke 1900A puedes subir los archivos aquí .
Modelo:
1900A
Fecha:
1976
Categoría:
Grupo:
Descripción:
Multifunction Counter
Información
The Fluke Model 1900A is a 5 Hz to 80 MHz mul-
tiple-function Counter capable of making frequency, period,
period averaging and totalize measurements. In the frequency
mode, resolution is manually selectable at 0.1 Hz, 1.0 Hz,
10 Hz and 100 Hz. in the period averaging mode, the number
of periods averaged is manually-selectable at 10°, 101, 102
and 103 periods. Automatic selection of resolution and
number of periods averaged (autoranging) is also provided to
automatically select the optimum range for a particular
input signal. However, the 100 Hz resolution and 103 periods
must be manually selected.
1 -3. The measurement display is six digits, light-emit-
ting-diode-type (LED) with leading-zero suppression and
automatic decimal point positioning. Annunciators are provided
to indicate measurement units (kHz, MHz, milliseconds and
microseconds) and also overflow when the capacity of the
display is exceeded. All displayed information
is also available, in parallel BCD format, at a rear-panel
connector when the unit is equipped with an optional Data
Output Unit (DOU).
1-4. The Model 1900A is equipped with a selectable 1 MHz
low-pass Filter for use in electrically noisy environments,
and a selectable 10:1 attenuator for use with high- level
inputs. A self-check mode of operation is provided to verify
overall performance of the unit. Power requirements are 100,
115 or 230 volts at 50 to 400 Hz for the line- powered
version. An optional battery-powered version, Model
1900A--Ö1, provides for use away from ac power lines and is
equipped with rechargeable nickel-cadmium batteries. The
battery-powered version also operates from the ac lines, but
only at the power line frequency and voltage specified on
the bottom of the instrument.
Type manuel:
Servicio y Manual del usuario
Páginas:
88
Tamaño:
4.02 Mbytes (4218868 Bytes)
Idioma:
english
Revisión:
1
Manuel-ID:
Asus M3N78-VN
Fecha:
Formato:
Documento Scaned, todo legible.
Fecha de subida:
2016 02 08
MD5:
50951193019a81a6d6f4ba8d802e45d5
Descargas:
1074
Información
1 INTRODUCTION AND SPECIFICATIONS 1-1
1-1.
INTRODUCTION ... 1-1
1-5. SPECIFICATIONS
... 1-1
2 OPERATING INSTRUCTIONS
... 2-1
2-1.
INTRODUCTION ... 2-1
2-3. SHIPPING
INFORMATION ... 2-1
2-6. INPUT
POWER ... 2-1
2-8. RACK
INSTALLATION ... 2-1
2-10. OPERATING
FEATURES ... 2-1
2-12. OPERATING
NOTES ... 2-3
2-13. Input
Connection ... 2-3
2-15. Overload
Protection ... 2-3
2-17. FREQUENCY MEASUREMENTS .
... 2-3
2-19. PERIOD
MEASUREMENTS ... 2-3
2-21. TOTALIZE
MEASUREMENTS ... 2-4
2-23. SELF CHECK
MODE ... 2-4
3 THEORY OF
OPERATION ... 3-1
3-1.
INTRODUCTION ... 3-1
3-3. OVERALL FUNCTIONAL
DESCRIPTION ... 3-1
3-4.
Introduction ... 3-1
3-7. Frequency
Mode ... 3-1
3-12. Period
Mode ... 3-2
3-14. Totalize
Mode ... 3-4
3-16. Self Check
Mode ... 3-5
3-18. CIRCUIT
DESCRIPTION ... 3-5
3-19.
Introduction ... 3-5
3-21.
Sequencer ... 3-5
3-24. Input
Section ... 3-7
3-26. Main Gate/Decade
Counters ... 3-7
3-28. Display Memory and
Multiplexer ... 3-9
3-30.
Display ... 3-9
3-32. Time
Base ... 3-10
TITLE PAGE
3-34. Range Control
Logic ... 3-1
1
3-38. Decimal Point
Logic ... 3-12
3-40. Autorange
Logic ... 3-12
4
MAINTENANCE ... 4-1
4-1.
INTRODUCTION ... 4-1
4-3. SERVICE
INFORMATION ... 4-1
4-5. GENERAL
MAINTENANCE ... 4-1
4-6.
Access ... 4-1
4-8.
Cleaning ... 4-1
4-10. Fuse
Replacement ... 4-1
4-12. PERFORMANCE
CHECKS ... 4-1
4-14. Functional
Check ... 4-1
4-16. Sensitivity
Check ... 4-1
4-18
CALIBRATION ... 4-2
4-20. Trigger Leve!
Adjustment ... 4-2
4-22. Time Base Oscillator
Adjustment ... 4-2
4-24. Time Base Adjustment Using a Frequency Standard ... 4-3
4-25.
TROUBLESHOOTING ...
4-3
4-26,
Introduction ... 4-3
4-28. Initial
Troubleshooting ... 4-3
4-30. Power
Supply ... 4-3
4-32. Fault
Isolation ... 4-3
4-34. Input
Section ... 4-3
4-36. Time
Base ... 4-3
4-38.
Sequencer ... 4-3
4-40. Control Logic and
Counters ... 4-3
4-42. REPAIR
TECHNIQUES ...
4-4
4-43. Battery-Powered
Instruments ... 4-4
4-45. Integrated Circuit
Replacement ... 4-4
5 LIST OF REPLACEABLE
PARTS ... 5-1
5-1.
INTRODUCTION ... 5-2
5-4. HOW TO OBTAIN
PARTS ... 5-2
5-7. USE CODE EFFECTIVITY
LIST ... 5-2
6 OPTION AND ACCESSORY
INFORMATION ... 6-1
7 GENERAL
INFORMATION ... 7-1
8 SCHEMATIC
DIAGRAMS ... 8-1
Type manuel:
Manual del usuario, Diagrama cirquit
Páginas:
86
Tamaño:
4.07 Mbytes (4265857 Bytes)
Idioma:
english
Revisión:
1 2/77
Manuel-ID:
384875
Fecha:
Formato:
Documento Scaned, todo legible.
Fecha de subida:
2009 02 19
MD5:
dec41f1e7684f894cf5fa9c4903cc25a
Descargas:
3439