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Manuals
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HP Manuals
Measuring Instruments
421A
Operating and service manual
HP 421A Operating And Service Manual
Voltmeter
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Information
Instrument and Manual
Identification
Available Accessories
Cables and Adapters
Initial Inspection
Grounding Requirements
Installation
Bench Mounting
Rack Mounting
Combination Mounting
Repackaging for Shipment
Operating Instructions
Front and Rear Panel Description
Mechanical Zero Adjustment
Turn-On Procedure
DC Measurements
AC Measurements
DB Measurements
Effects of Harmonic Distortion
AC Operation
Circuit Descriptions
AC Metering Circuit
Required Equipment
Performance Checks
List of
Check
Resistance Accuracy Check
DC Accuracy
Check
AC Rejection Check . Sé
Input Impedance
Cover Removal
Amplifier Balance and Zero
AC Calibration
Resistance Infinity Adjustment
DC Calibration
Alternate Performance
And Calibration Procedures
Resistance Circuits
DC Circuitfs
Input Impedance
Battery Replacement
Check
Power Supply
DC Amplifier
Adjustment of Factory Selected
Power Supply Voltages
AC Metering Circuit Voltages
Description
Replaceable Parts
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OPERATING
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VANDERBILT UNNER SITY
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