Geräte Informationen:

Fluke HYDRA 2620A Test Set
Hersteller:
Fluke
Modell: HYDRA 2620A
Datum: 1997
Kategorie: Messgeräte
Gruppe: Test Set
Beschreibung: Data Acquisition Unit
Informationen:
                                    Hydra measures analog inputs of dc and ac volts,
thermocouple and RTD temperatures, resistance, and
frequency. It features 21 measurement input channels. In
addition, it contains eight digital input/output lines, one
totalizing input, one external scan trigger input, and four
alarm output lines. Hydra is fully portable and can be ac or
dc powered. An RS-232 computer interface is standard. An
optional IEEE-488 computer interface is available for the
Hydra Data Acquisition Unit (2620A) only.
The Hydra Data Logger (2625A) adds substantial measurement
memory capabilities.
The RS-232 computer interface is standard, but IEEE-488
capability is not available for the Hydra Data Logger.
The Hydra Data Bucket (2635A) adds more flexible storage for
instrument setups and measurement data by adding a PCMCIA
memory card and interface. The amount of storage can be
easily changed by selecting a memory card of the appropriate
size for the job.
The Hydra instruments share many features and functions. The
term "instrument" is used to refer to all three instruments.
The model number (2620A, 2625A, or 2635A) is used when
discussing features unique to one instrument.
The instrument is designed for bench-top, field service, and
system applications. A dual vacuum-fluorescent display uses
combinations of alphanumeric characters and descriptive
annunciators to provide prompting and measurement
information during setup and operation modes.

Channel Scanning
Can be continuous scanning, scanning at an interval time,
single scans, or triggered (internal or external) scans.
· Channel Monitoring
Make measurements on a single channel and view these
measurements on the display.
· Channel Scanning and Monitoring
View measurements made for the monitor channel while
scanning of all active channels continues.
· Multi-Function Display
Left (numeric) display shows measurement readings; also used
when setting numeric parameters.
Right (alphanumeric) display used for numeric entries,
channel number selection and display, status information,
and operator prompts.
· Front-Panel Operation
Almost all operations can be readily controlled with the
buttons on the front panel.
· Measurement Input Function and Range
Volts dc (VDC), volts ac (VAC), frequency (Hz), and
resistance (Ω) inputs can be specified in a fixed
measurement range. Autoranging, which allows the instrument
to use the measurement range providing the optimum
resolution, can also be selected.
· Temperature Measurement
Thermocouple types J, K, E, T, N, R, S, B, and Hoskins
Engineering Co. type C are supported.Also, DIN/IEC 751 (Pt
385) Platinum RTDs are supported.
· Totalize Events on the Totalizing Input
· Alarms Limits and Digital Output Alarm Indication
· 4-Terminal Resistance Measurements (Ch. 1 .. 10)
· RS-232 Computer Interface Operation
· Measurement Rate Selection
· Nonvolatile Memory
Storage of minimum, maximum, and most recent measurements
for all scanned channels.
Storage of Computer Interface setup, channel configurations,
and calibration values.
· Features unique to the 2625A Data Logger.
Storage of measurement data: storage for 2047 scans of up to
21 channels, representing up to 42,987 readings.
· Features unique to the 2635A Data Bucket.
Internal storage of measurement data for 100 scans of up to
21 channels, representing up to 2,100 readings.
Memory card storage of instrument setup configurations so
that instrument may be quickly set up to do different tasks.
Memory card storage of measurement data for up to 4,800
scans of 10 channels on a 256K-byte card or up to 19,800
scans of 10 channels on a 1M-byte memory card.
Enhanced RS-232 interface with higher baud rates and
hardware flow control using the Clear to Send modem control
signal.

Folgende Anleitungen sind für obiges Gerät verfügbar:

Fluke -- HYDRA 2620A -- Serviceanleitung
Dateiname: Fluke-7676-Manual-Page-1-Picture
Dokumenttyp: Serviceanleitung
Seitenanzahl: 310
Dateigröße: 9.26 Mbytes (9712425 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: 202231
Datum: Februar 1997
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
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ed2kID: f2e6a8d405e7cc67ed4f7c16afe6707f
Downloads: 74 seit 31 Januar 2016
Informationen:
This manual focuses on performance tests, calibration
procedures, and component-level repair of each of the
instruments. To that end, manual sections are often
interdependent; effective troubleshooting may require not
only reference to the troubleshooting procedures in Section
5, but also some understanding of the detailed Theory of
Operation in Section 2 and some tracing of circuit operation
in the Schematic Diagrams presented in Section 8.
Often, scanning the table of contents will yield an
appropriate place to start using the manual. A comprehensive
table of contents is presented at the front of the manual;
local tables of contents are also presented at the beginning
of each chapter for ease of reference. If you know the topic
name, the index at the end of the manual is probably a good
place to start.
The following chapter descriptions serve to introduce the
manual:
Chapter 1. Introduction and Specifications
Introduces the instrument, describing its features, options,
and accessories. This chapter also discusses use of the
Service Manual and the various conventions used in
describing the circuitry. Finally, a complete set of
specifications is presented.
Chapter 2. Theory of Operation (2620A and 2625A)
This chapter first categorizes these instrument's circuitry
into functional blocks, with a description of each block’s
role in overall operation. A detailed circuit description is
then given for each block. These descriptions explore
operation to the component level and fully support
troubleshooting procedures defined in Chapter 5.
Chapter 2A. Theory of Operation (2635A)
This chapter first categorizes the instrument’s circuitry
into functional blocks, with a description of each block’s
role in overall operation. A detailed circuit description is
then given for each block. These descriptions explore
operation to the component level and fully support
troubleshooting procedures defined in Chapter 5A.
Chapter 3. General Maintenance
Provides maintenance information covering handling,
cleaning, and fuse replacement. Access and reassembly
procedures are also explained in this chapter.
Chapter 4. Performance Testing and Calibration
This chapter provides performance verification procedures,
which relate to the specifications presented in Chapter 1.
To maintain these specifications, a full calibration
procedure is also presented.
Chapter 5. Diagnostic Testing and Troubleshooting (2620A and
2625A)
The troubleshooting procedures presented in this chapter
rely closely on both the Theory of Operation presented in
Chapter 2, the Schematic Diagrams shown in Chapter 8, and
the access information provided in Chapter 3.
Chapter 5A. Diagnostic Testing and Troubleshooting (2635A)
The troubleshooting procedures presented in this chapter
rely closely on both the Theory of Operation presented in
Chapter 2A, the Schematic Diagrams shown in Chapter 8, and
the access information provided in Chapter 3.
Chapter 6. List of Replaceable Parts
Includes parts lists for all standard assemblies.
Information on how and where to order parts is also provided.
Chapter 7. IEEE-488 Option (2620A only)
This chapter describes the IEEE-488 option. Included are
specifications, theory of operation, maintenance, and a list
of replaceable parts. Schematic diagrams for this option are
included at the end of the overall Service Manual (Chapter 8).
Chapter 8. Schematic Diagrams
Includes schematic diagrams for all standard and optional
assemblies. A list of mnemonic definitions is also included
to aid in identifying signal name abbreviations.
Chapter 9. HYDRA Starter Calibration Software
This chapter provides an extened tutorial that demostrates
how to perform a series of operations. These operations
introduce you to the menu structure of the Starter with cal
software, explain what the menu items do, and teach you how
to use them.
Fluke-7676-Manual-Page-1-Picture
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