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421A
HP 421A Manuals
Manuals and User Guides for HP 421A. We have
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HP 421A manual available for free PDF download: Operating And Service Manual
HP 421A Operating And Service Manual (39 pages)
VOLTMETER
Brand:
HP
| Category:
Measuring Instruments
| Size: 4.57 MB
Table of Contents
Table of Contents
4
Information
7
Instrument and Manual
7
Identification
7
Available Accessories
7
Cables and Adapters
7
Initial Inspection
8
Grounding Requirements
8
Installation
8
Bench Mounting
8
Rack Mounting
8
Combination Mounting
8
Repackaging for Shipment
8
Operating Instructions
10
Front and Rear Panel Description
10
Mechanical Zero Adjustment
10
Turn-On Procedure
10
DC Measurements
10
AC Measurements
11
DB Measurements
11
Effects of Harmonic Distortion
11
AC Operation
15
Circuit Descriptions
15
AC Metering Circuit
16
Required Equipment
18
Performance Checks
18
List of
18
Check
18
Resistance Accuracy Check
19
DC Accuracy
19
Check
19
AC Rejection Check . Sé
20
Input Impedance
20
Cover Removal
21
Amplifier Balance and Zero
22
AC Calibration
22
Resistance Infinity Adjustment
23
DC Calibration
23
Alternate Performance
23
And Calibration Procedures
23
Resistance Circuits
23
DC Circuitfs
24
Input Impedance
24
Battery Replacement
24
Check
24
Power Supply
25
DC Amplifier
25
Adjustment of Factory Selected
25
Power Supply Voltages
25
AC Metering Circuit Voltages
25
Description
35
Replaceable Parts
39
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