HP 3457A Service Manual page 6

TABLE OF CONTENTS (Cont'd)
Section 1V Page
PERFORMANCE TESTS (Cont'd)
4-50 DC Voltage Function
.
4449 1 A
Offset Test
. . . . . . . . . . . .
4-1 7
4-52 2-Wire Ohms Function
. 4449 1 A
Offset Test
. . . . . . . . . . . .
4-18
4-54 4-Wire Ohms Function
.
44491 A
Offset Test
. . . . . . . . . . . .
4-18
4-56 DC Current Function . 4449 1 A
Offset Test
. . . . . . . . . . . .
4-19
Rear Input Performance Tests (44492A
10 Channel Multiplex Assy)
. . . . 4-20
4-58 Preliminary Steps
. . . . . . . . . .
4-20
4-59 DC Voltage Function
.
44492A
Offset Test
. . . . . . . . . . . .
4-20
4-61 2-Wire Ohms Function
.
44492A
. . . . . . . . . . . .
Off set Test 4-2
1
4-63 Operational Verification Tests
. . .
4-22
DC Voltage Operational Verification
Tests
. . . . . . . . . . . . . . . .
4-22
4-65 Preliminary Steps
. . . . . . . . . .
4-22
4-66 DC Voltage Function . Offset Test
.
4-22
4-68 DC Voltage Function
.
Gain Test
. .
4-23
AC Voltage Operational Verification
. . . . . . . . . . . . . . . .
Tests 4-24
4-70 AC Voltage Function
.
Gain Test
. .
4-24
4-72 AC Voltage Function
.
Frequency
. . . . . . . . . . .
Response Test 4-24
DC Current Operational Verification
. . . . . . . . . . . . . . . .
Tests 4-25
4-74 DC Current Function
.
Offset Test
.
4-26
4-76 DC Current Function
.
Gain Test
.
4-26
AC Current Operational Verification
. . . . . . . . . . . . . . . .
Tests 4-27
4-78 AC Current Function
.
Gain Test
.
.
4-27
2-Wire Ohms Operational Verification
. . . . . . . . . . . . . . . .
Tests 4-27
4-80 2-Wire Ohms F ~ ~ n c t i o n
. Offset
. . . . . . . . . . . . . . . .
Test 4-27
4-82 2-Wire Ohms Function
.
Gain Test
.
4-28
4-Wire Ohms Operational Verific a t' on
. . . . . . . . . . . . . . . .
Tests 4-29
4-84 4-Wire Ohms F~inction
.
Offset
. . . . . . . . . . . . . . . .
Test 4-29
4-86 4-Wire Ohms Function
.
Gain Test
.
4-30
Frequency Counter Operational
. . . . . . . . .
Verification Tests 4-3 1
4-88 Frequency Counter
.
Accuracy
. . . . . . . . . . . . . . . .
Test 4-31
Rear Input Operational Verification
. . . .
Test (Standard Instrument) 4-32
Section 1V
PERFORMANCE TESTS (Cont'd)
4-90 Preliminary Steps
. . . . . . .
4-91 DC Voltage Function
.
Rear
Terminal OFfset Test
. . . .
4-93 DC Current Function
.
Rear
Terminal Offset Test
. . . .
4-95 2-Wire Ohms Function
.
Reas
Terminal Offset Test
. . . .
4-97 4-Wire Ohms Function
.
Real-
Terminal Offset Test
. . . .
Rear Input Operational Verification
Page
.
4-32
.
4-33
. 4-33
.
4-33
.
4-33
Tests (4449 1 A General Purpose
Relay Assy)
. . . . . . . . . . .
4-34
4-99 Preliminary Steps . . . . . . . . . 4-34
4-100 DC Voltage F~unction . 44491A
Offset Test . . . . . . . . . . . 4-35
4-102 2-Wire Ohms Function
.
44491A
Offset Test
. . . . . . . . . . .
4-35
4-104 4-Wire Ohms Function
.
44491 A
Offset Test
. . . . . . . . . . .
4-35
4-106 DC Current Function
.
4449
l A
Offset Test
. . . . . . . . . . .
4-36
Rear Input Operational Verific a t' ton
Test (44492A 10 Channel Multiplex
Assy)
. . . . . . . . . . . . . .
4-36
4-108 Preliminary Steps
. . . . . . . . .
4-37
4-109 DC Voltage Function
.
44492A
Offset Test
. . . . . . . . . . .
4-37
4-1 11 2-Wise Ohms Function
.
44492A
. . . . . . . .
Offset Test Limits 4-37
Section V Page
CALIBRATION
. . . . . . . . . . . . . .
5. 1
5-1 Intsoduction
. . . . . . . . . . . . .
5.1
5-4 Calibration Security . . . . . . . . . 5.1
5-6 Security Code
. . . . . . . . . . .
5. I
5-8 Changing the Security Code . . . . 5.1
5-10 Calibration Number . . . . . . . . . 5.2
5-1 3 Preliminary Calibration
Procedures
. . . . . . . . . . . .
5.3
5-1 5 Input Amplifier Offset
. . . . . . . . . . . .
Adjustments 5.4
5- 17 AC Convertor Frequency
. . . . . . .
Response Adjustment 5.4
5- 19 Calibration Procedures . Front
Panel Inputs
. . . . . . . . . . . .
5.5
5-21 DC Volts Offset Calibration
. . . .
5.5
. . . . .
5-23 DC Volts Gain Calibration 5.6
. . .
5-25 DC Volts Linearity Calibration 5.6