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HP 410C manual available for free PDF download: Organizational, Ds, Gs, And Depot Maintenance Manual
HP 410C Organizational, Ds, Gs, And Depot Maintenance Manual (64 pages)
ELECTRONIC VOLTMETER
Brand:
HP
| Category:
Measuring Instruments
| Size: 1.19 MB
Table of Contents
Table of Contents
3
General Information
7
1-A.1. Scope
7
1-A.2. Index of Publications
7
1-A.3. Maintenance Forms, Records, and Reports
7
1-A.5. Reporting Equipment Improvement Recommendations (EIR)
7
1-A.6. Administrative Storage
7
Description
10
The Model 410C Electronic Voltmeter
10
Accessories Available
11
The Combining Case
12
Steps to Place Instrument in Combining Case
12
Installation
13
Inspection
13
Rack Mounting
13
Three-Conductor Power Cable
13
Primary Power Requirements
13
Repackaging for Shipment
14
Operation
15
Introduction
15
Adjustment of Mechanical Zero
15
Front and Rear Panel Description
15
Operating Procedures
15
AC Voltage Measurements (Figure 3-4)
15
DC Current Measurements (Figure 3-3)
15
DC Voltage Measurements (Figure 3-2)
15
Precautions When Measuring AC Voltage
15
Front and Rear Panel Controls
16
Negative Pulses
18
Measuring Resistance (Figure 3-7)
18
Measuring DC Nano-Ampere Current (Figure 3-8)
18
DC Current Measurements
20
Graph Used in Calculation of Pulse Voltage Readings
23
Resistance Measurements
24
Block Diagram, Model 410C
26
Theory of Operation
27
Circuit Description
27
Input Network
27
Modulator-Demodulator
27
DC Voltage Measurements
27
The Feedback Network
28
Power Supply
28
Recommended Test Equipment
34
Vmaintenance
35
Introduction
35
Test Equipment Required
35
Performance Checks
35
Alternate Voltage Source
35
Mechanical Meter Zero
35
DCV Accuracy Test
36
DC Ammeter Operation
37
DCV Input Resistance Test
37
DCA Accuracy Test
37
Ohmmeter Operation
38
Amplifier Operation
38
AC Voltmeter Operation
39
Chopper Frequency Adjust
42
Power Supply Adjustment
43
Power Supply Test
43
Ohms Adjust (R3)
45
AC Zero Adjust
46
AC Full Scale Adjust (.5 V Range)
46
Troubleshooting Procedure
46
Servicing Etched Circuit Boards
48
Chopper Assembly Installation
49
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