Agilent Technologies N3280A User Manual Page 23
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Installation - 2
23
+
_
TWIST LEADS
KEEP RESISTNCE AND
INDUCTANCE LOW.
USE TWISTED PAIR OR
SANDWICHED PCB TRACKS.
TWIST PAIR
FIXTURE
CONNECTIONS
LOAD
ADDITION OF LOW-LEAKAGE
RC NETWORK MAY IMPROVE
TRANSIENT RESPONSE IN
VOLTAGE PRIORITY MODE.
OUTPUT 1
MATING PLUG
SHOWN
Hsen Hi Lo Lsen
INSERT WIRES
TIGHTEN SCREWS
LOCKING SCREW
Figure 2-4. Remote Sense Connections with Test Fixture
Current Ratings
The following table lists the characteristics of AWG (American Wire Gauge) copper wire for some
common wire sizes that can be accommodated in the output connectors.
Table 2-2. Ampacity and Resistance of Stranded Copper Conductors
AWG No. Maximum Ampacity (in
free air)
Resistance (at 20 deg. C)
Ω
ΩΩ
Ω/m Ω
ΩΩ
Ω/ft
24 3.52 0.0843 0.0257
22 5.0 0.0531 0.0162
20 8.33 0.0331 0.0101
18 15.4 0.0210 0.00639
16 19.4 0.0132 0.00402
Voltage Drops and Lead Resistance
To optimize the performance and transient response in your test system, please observe the following
guidelines:
♦ Twist the load leads together and keep them short. The shorter the leads, the better the performance.
♦ Twist the sense leads together, but do not bundle the sense leads with the load leads.
♦ For best performance, keep the total cable length to the load to about 5 meters (15 ft) or less.
The load wires must also be of a diameter large enough to avoid excessive voltage drops due to the
impedance of the wires. In general, if the wires are heavy enough to carry the maximum short circuit
current without overheating, excessive voltage drops will not be a problem.
- USER’S GUIDE 1
- Warranty Information 2
- Safety Summary 3
- Declaration Page 5
- Acoustic Noise Information 6
- Printing History 6
- Table of Contents 7
- PROGRAMMING THE DC SOURCE 39 8
- LANGUAGE DICTIONARY 53 9
- SPECIFICATIONS 79 10
- ERROR MESSAGES 103 11
- LINE VOLTAGE SELECTION 107 11
- INDEX 111 11
- General Information 13
- Options and Accessories 14
- Description 14
- Output Characteristics 15
- Current Priority Operation 16
- Measurement Characteristics 17
- Start of a Measurement 18
- Installation 19
- Location 20
- Power Connections 21
- Outputs 1 - 4 22
- Current Ratings 23
- Coaxial Guard Connections 24
- External Trigger Connections 25
- Computer Connections 25
- 4 3 2 1 0 26
- Address = 5 26
- Turn-On Checkout 27
- Checkout Procedure 28
- In Case of Trouble 29
- Introduction to Programming 31
- Moving Among Subsystems 33
- Including Common Commands 33
- Using Queries 33
- Types of SCPI Messages 34
- SCPI Data Formats 35
- SCPI Command Completion 36
- Using Device Clear 37
- Programming the DC Source 39
- Overvoltage Protection 40
- Output Current 40
- Output Mode 40
- Oscillation Protection 41
- Output Trigger Model 41
- Making Measurements 43
- Power Line Cycles 44
- Triggered Measurements 45
- Measurement Trigger Model 46
- Output Settling Delay 47
- Operation Status Group 50
- Questionable Status Group 51
- Standard Event Status Group 51
- Status Byte Register 51
- Language Dictionary 53
- 6 – Language Dictionary 54
- Language Dictionary - 6 55
- Calibration Commands 57
- CALibrate:DATA 58
- CALibrate:DATE 58
- CALibrate:LEVel 58
- CALibrate:PASSword 58
- CALibrate:SAVE 59
- CALibrate:STATe 59
- CALibrate:VOLTage 59
- Measurement Commands 60
- MEASure:ARRay:CURRent? 61
- MEASure:ARRay:VOLTage? 61
- MEASure:CURRent? 61
- MEASure:VOLTage? 61
- SENSe:CURRent:RANGe 61
- SENSe:FUNCtion 62
- SENSe:SWEep:NPLCycles 62
- SENSe:SWEep:OFFSet:POINts 62
- SENSe:SWEep:POINts 63
- SENSe:SWEep:TINTerval 63
- SENSe:WINDow 63
- Output Commands 64
- [SOURce:]CURRent[:IMMediate] 65
- [SOURce:]CURRent:TRIGgered 65
- [SOURce:]CURRent:LIMit:BWIDth 65
- [SOURce:]CURRent:MODE 66
- [SOURce:]CURRent:LIMit:MODE 66
- [SOURce:]DELay 66
- [SOURce:]DELay:MODE 66
- [SOURce:]FUNCtion:MODE 67
- [SOURce:]VOLTage:ALC:BWIDth 67
- [SOURce:]VOLTage[:IMMediate] 67
- [SOURce:]VOLTage:TRIGgered 67
- [SOURce:]VOLTage:MODE 68
- Status Commands 69
- STATus:OPERation:NTR 70
- STATus:OPERation:PTR 70
- STATus:PRESet 70
- STATus:QUEStionable[:EVENt]? 70
- STATus:QUEStionable:ENABle 71
- STATus:QUEStionable:NTR 71
- STATus:QUEStionable:PTR 71
- System Commands 72
- Trigger Commands 73
- TRIGger:ACQuire:SOURce 74
- TRIGger[:TRANsient]:SOURce 74
- TRIGger[:TRANsient] 74
- Common Commands 75
- 6 – Language Dictionary 76
- Language Dictionary - 6 77
- Table 6-7. *RST Settings 77
- Specifications 79
- A - Specifications 80
- Specifications - A 81
- Introduction 83
- Equipment Required 83
- Measurement Techniques 84
- Electronic Load 85
- Programming 85
- Test Setup 85
- Voltage Priority Tests 86
- Negative Current Limit (-CL) 87
- Current Priority Tests 88
- Load Effect Tests 89
- Source Effect Tests 91
- Ripple and Noise Tests 94
- Transient Response Tests 95
- Transient 96
- Performance Test Record Form 98
- Enable Calibration Mode 99
- Calibration 101
- Calibration Error Messages 102
- Error Messages 103
- C – Error Messages 104
- Error Messages - C 105
- Line Voltage Selection 107
- Rear Panel Pinout Assignments 109
- Mating Connector Part Numbers 109
- Manual Updates 116
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