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General| Type | Digital Multimeter |
|---|---|
| Measurement Functions | DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature |
| Operating Temperature | 0°C to 50°C |
| Frequency Measurement | 10 Hz to 100 kHz |
| Temperature Measurement | -200°C to 1372°C |
Overview of the Model 3490A multimeter, its capabilities, and manual contents.
Lists critical specifications controlled by tolerances and general operating characteristics.
Details available options to extend the usefulness of the Model 3490A.
Lists accessories provided with the Model 3490A and its options.
Lists optional accessories available for use with the Model 3490A.
Provides information on identifying the instrument and the manual.
Provides information for installing and interfacing the Model 3490A Multimeter.
Outlines procedures for inspecting the instrument for physical damage and verifying accessories.
Details the power source requirements for operating the Model 3490A.
Illustrates standard configurations for HP power cords and their part numbers.
Explains the importance of grounding the instrument for personnel protection.
Specifies the operating and storage temperature and humidity ranges for the instrument.
Covers procedures for installing the instrument, including bench and rack mounting.
Describes how to set up the instrument for benchtop use, including tilt stand.
Details the procedure for rack mounting the instrument using the rack mount kit.
Provides procedures for installing specific options like Data Output and Remote Control.
Details various interface connections available on the Model 3490A.
Explains connections and logic levels for the Data Output Option 021.
Describes input/output lines and logic levels for the Remote Control Option 022.
Details the rear panel input connector and its associated cabling.
Shows signal connections at the rear panel GPIB connector and describes their use.
Specifies restrictions on cable length for connecting instruments in parallel on the GPIB bus.
Outlines instructions for using the Model 3490A for various measurements.
Describes the standard instrument's measurement capabilities and features.
Details the standard Model 3490A's specifications for voltage, resistance, and ranging.
Explains the functions of Data Output (Option 021) and Remote Control (Option 022).
Details how data output and remote control options work.
Explains the capabilities of the GPIB option for remote programming and data output.
Describes how the Sample/Hold option enables sampling of changing inputs.
Details the Model 3490A's capability for three-wire ratio measurements.
Illustrates and briefly describes the front and rear panel controls and connectors.
Lists the maximum allowable voltages for input terminals and chassis to prevent damage.
Introduces performance tests and adjustment procedures for maintaining instrument specifications.
Lists the required test equipment for performance tests and adjustments.
Provides a record for documenting performance test results and acceptable limits.
Outlines procedures to determine if the instrument operates within its published specifications.
Details the procedure to verify the DC voltmeter accuracy specifications.
Provides procedures to check the accuracy of AC voltmeter circuits across various ranges and frequencies.
Outlines methods to check the accuracy of the ohmmeter function.
Explains how to measure the ratio of peak common-mode voltage to resultant error.
Details the test for AC common-mode rejection.
Describes the test for AC normal-mode rejection.
Outlines the procedure to test the DC voltmeter's input resistance.
Details the procedure for testing the AC voltmeter's input impedance.
Specifies that DC voltage measurement performance must be verified before Sample/Hold tests.
Checks DC voltage accuracy for Track/Hold and Acquire/Hold operations.
Verifies Sample/Hold circuits respond to step input voltage within acquisition time.
States that DC and AC voltage measurement performance must be within specs before ratio tests.
Provides preferred and alternate methods for DC/DC ratio accuracy testing.
Details the procedure for checking AC/DC ratio accuracy.
Outlines the procedure to test the external reference input resistance.
Describes procedures to verify the operation of the 3490A Option 030 GPIB circuits.
Provides information necessary for repairing the Model 3490A, including schematics and troubleshooting trees.
Offers initial troubleshooting steps for operating incorrectly and checking for loose components.
Lists troubleshooting trees for various circuits and operations, guiding problem isolation.
Explains how to access areas of the instrument for servicing, including removing covers and shields.
Details how to check power supply voltages and ripple using an oscilloscope and digital voltmeter.
Provides information for troubleshooting incorrect ratio measurements.
Guides on checking the external reference amplifier circuits for correct operation.
Explains how to adjust the offset amplifier to prevent turnover errors.
Details procedures for checking the reference polarity logic circuits.
Provides general notes applicable to all schematic diagrams in the manual.
Introduces backdating information for adapting the manual to earlier instrument serial numbers.
Lists changes made in the manual related to serial numbers and revisions.
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