Agilent Technologies E3640A User manual

User’s Guide
Part Number: E3640-90001
January 2000.
For Safety information, Warrantie , and Regulatory information,
ee the page behind the Index.
© Copyright Agilent Technologie 1999 - 2000
All Right Re erved.
Agilent E364xA Single Output
DC Power Supplies

The Agilent Technologies E3640A/E3641A (30 watt), E3642A/E3643A (50 watt),
and E3644A/E3645A (80 watt) are high per ormance single-output dual range
programmable DC power supplies with GPIB and RS-232 inter aces. The
combination o bench-top and system eatures in these power supplies
provides versatile solutions or your design and test requirements.
Convenient bench-top features
• Single-output dual range
• Output on/o
• High accuracy and high resolution
• Excellent load and line regulation
• Low ripple and noise
• Overvoltage protection
• Five Operating states storage
• Easy-to-use controls
• Remote voltage sensing
• Front and Rear output terminals
• Portable, ruggedized case with non-skid eet
• Highly visible vacuum- luorescent displays
• Error messages available on the display
Flexible system features
• GPIB (IEEE-488) and RS-232 inter aces are standard
• SCPI (Standard Commands or Programmable Instruments) compatibility
• I/O setup easily done rom ront-panel
• So tware calibration, no internal physical adjustments
Agilent Technologies E364xA
Single Output DC Power Supplies

2
The Front Panel at a Glance
1 Low voltage range selection Key
2 High voltage range selection Key
3 Overvoltage protection Key
4 Display limit Key
5 Voltage/Current adjust selection Key
6 Stored state Recall/Reset enu
7 State storage menu/Local Key
8 View menu/Calibrate Key
9 I/O Configuration menu/Secure Key
10 Output On/Off Key
11 Resolution selection Keys
12 Knob

3
Front-Panel Menu/Key Reference
This section gives an overview o the ront-panel keys/menus. The menus are
designed to automatically guide you through all parameters required to
con igure a particular unction or operation.
1 Low voltage range selection key Selects the low voltage range and allows
its full rated output to the output terminals.
2 High voltage range selection key Selects the high voltage range and allows
its full rated output to the output terminals.
3 Overvoltage protection key Enables or disables the overvoltage protection
function, sets trip voltage level, and clears the overvoltage condition.
4 Display limit key Shows voltage and current limit values on the display and
allows the knob adjustment for setting limit values.
5 Voltage/C rrent adj st selection key Selects the knob control function for
voltage or current adjustment.
6 Stored state recall men Recalls a stored operating state from location ‘‘1
through ‘‘5 and resets the power supply to the power-on state (*RST
command) from the front panel by selecting the ‘‘RESET from this menu.
7 State storage men / Local key1 Stores up to five power supply s states in
non-volatile memory and assigns a name to each of the storage locations / or
returns the power supply to local mode from remote interface mode.
8 View men / Calibrate key2 Views the error codes and the text of the error
message, calibration string, and system firmware revision / or enables
calibration mode.
9 I/O Config ration / Sec re key3 Configures the power supply for remote
interfaces / or secures or unsecures the power supply for calibration.
10 O tp t On/Off key Enables or disables the power supply output. This key
toggles between on and off.
11 Resol tion selection keys Move the flashing digit to the right or left and
adjust the scrolling speed of the text being displayed in the View menu.
12 Knob Increases or decreases the value of the flashing digit by turning
clockwise or counter clockwise.
1The key can be used as the ‘‘Local’’ key when the power supply is in the remote
inter ace mode.
2You can enable the ‘‘calibration mode’’ by holding down this key when you
turn on the power supply.
3You can use it as the ‘‘Secure’’ or ‘‘Unsecure’’ key when the power supply is
in the calibration mode.

4
Front-Panel Voltage and Current Limit Settings
You can set the voltage and current limit values from the front panel using the
following method.
1Select the desired voltage range using the voltage range selection keys after
turning on the power supply.
2Press key to show the limit values on the display.
3Move the blinking digit to the appropriate position using the resolution
selection keys and change the blinking digit value to the desired voltage limit
by turning the control knob. If the display limit times out, press key again.
4Set the knob to current control mode by pressing key.
5Move the blinking digit to the appropriate position using the resolution
selection keys and change the blinking digit value to the desired current limit
by turning the control knob.
6Press key to enable the output. After about 5 seconds, the display will
go to output monitoring mode automatically to display the voltage and current
at the output.
Note All front panel keys and controls can be disabled with remote interface commands.
The power supply must be in "Local" mode for the front panel keys and controls to
function.
Use the voltage/current adjust selection key, the resolution selection keys,
and the control knob to change the voltage and current limit values.
+
Low
High
Or
Display
Limit
Display
Limit
Current
Voltage
On/Off
Output

5
isplay Annunciators
Adrs Power supply is addressed to listen or talk over a remote interface.
Rmt Power supply is in remote interface mode.
8V* Shows the low voltage range is selected.
20V* Shows the high voltage range is selected.
35V** Shows the low voltage range is selected.
60V** Shows the high voltage range is selected.
OVP The overvoltage protection function is enabled when the
annunciator turns on or the overvoltage protection circuit has
caused the power supply to shutdown when the annunciator blinks.
CAL The power supply is in calibration mode.
Limit The display shows the limit values of voltage and current.
ERROR Hardware or remote interface command errors are detected and
the error bit has not been cleared.
OFF The output of the power supply is disabled (See page 54 for more
information).
Unreg The output of the power supply is unregulated (output is neither CV
nor CC).
CV The power supply is in constant voltage mode.
CC The power supply is in constant current mode.
To review the display ann nciators, hold down key as yo t rn on
the power s pply.
Display
Limit
*For E3640A/42A/44A model. **For E3641A/43A/45A model.

6
The Rear Panel at a Glance
Note: The supplier code o the C-Tick or the E3643A/45A is N10149.
Use the front-panel key to:
• Select the GPIB or RS-232 interface (see chapter 3).
• Set the GPIB address (see chapter 3).
• Set the RS-232 baud rate and parity (see chapter 3).
1 AC inlet
2 Power-line fuse-holder assembly
3 Power-line module
4 RS-232 interface connector
5 GPIB (IEEE-488) interface connector
6 Rear output terminals
I/O
Config

7
In This Book
Quick Start Chapter 1 helps you get amiliar with a ew o the power supply’s
the ront panel eature.
General Information Chapter 2 contains a general description o your
power supply. This chapter also provides instructions or installation o your
power supply and the output connections.
Front-Panel Operation Chapter 3 describes in detail the use o ront-panel
keys and how they are used to operate the power supply rom the ront panel.
This chapter also shows how to con igure the power supply or the remote
inter ace and gives a brie introduction to the calibration eatures.
Remote Interface Reference Chapter 4 contains re erence in ormation to
help you program the power supply over the remote inter ace. This chapter
also explains how to program or status reporting.
rror Messages Chapter 5 lists the error messages that may appear as you
are working with the power supply. Each listing contains in ormation to help
you diagnose and solve the problem.
Application Programs Chapter 6 contains some remote inter ace
applications to help you develop programs or your application.
Tutorial Chapter 7 describes basic operation o linear power supplies and
gives speci ic details on the operation and use o your power supply.
Specifications Chapter 8 lists the power supply’s speci ications.
Service Information Contains guidelines to return your power supply to
Agilent Technologies or servicing, procedures or veri ication & calibration,
and replaceable parts list and component locator diagram & schematics.
If you have questions relating to the operation of the power supply, call
1-800-452-4844 in the United tates, or contact your nearest Agilent
Technologies ales Office.
If your power supply fails within three years of purchase, Agilent will repair
or replace it free of charge. Call 1-800-258-5165 ("Express Exchange") in
the United tates, or contact your nearest Agilent Technologies ales Office.

8

9
Contents
Contents
Chapter 1 Quick Start
Preliminary Checkout- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 17
Output Checkout- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 18
Voltage Output Checkout - - - - - - - - - - - - - - - - - - - - - - - - - - - - 18
Current Output Checkout - - - - - - - - - - - - - - - - - - - - - - - - - - - - 19
I the Power Supply Does Not Turn On - - - - - - - - - - - - - - - - - - - - 20
Line Voltage Conversion- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 21
To Adjust the Carrying Handle- - - - - - - - - - - - - - - - - - - - - - - - - - - 23
To Rack Mount the Instrument - - - - - - - - - - - - - - - - - - - - - - - - - - 24
Chapter 2 General Information
Sa ety Considerations- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 29
Sa ety and EMC Requirements - - - - - - - - - - - - - - - - - - - - - - - - 29
Options and Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 30
Options- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 30
Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 30
Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 31
Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 33
Initial Inspection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 33
Cooling and Location - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 33
Output Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 34
Current Ratings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 34
Voltage Drops - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 35
Load Consideration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 35
Remote Voltage Sensing Connections - - - - - - - - - - - - - - - - - - 36
Multiple Loads - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 38
Chapter 3 Front-Panel Operation and Features
Front-Panel Operation Overview - - - - - - - - - - - - - - - - - - - - - - - - - 41
Constant Voltage Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 42
Constant Current Operation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 44
Con iguring the Remote Inter ace - - - - - - - - - - - - - - - - - - - - - - - - 46
GPIB Con iguration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 46
RS-232 Con iguration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 47
Storing and Recalling Operating States - - - - - - - - - - - - - - - - - - - - 48
Programming Overvoltage Protection - - - - - - - - - - - - - - - - - - - - - 50
Setting the OVP Level and Enable the OVP Circuit - - - - - - - - 50
Checking OVP Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - 51
Clearing the Overvoltage Condition - - - - - - - - - - - - - - - - - - - - 51
Disabling the Output- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 54
Disconnecting the Output Using an External Relay - - - - - - - 54

10
Contents
Contents
System-Related Operations- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 55
State Storage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 55
Sel -Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 56
Error Conditions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 56
Firmware Revision Query - - - - - - - - - - - - - - - - - - - - - - - - - - - - 57
SCPI Language Version - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 57
GPIB Inter ace Re erence - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 58
RS-232 Inter ace Re erence- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 59
RS-232 Con iguration Overview - - - - - - - - - - - - - - - - - - - - - - - 59
RS-232 Data Frame Format - - - - - - - - - - - - - - - - - - - - - - - - - - - 59
Connection to a Computer or Terminal - - - - - - - - - - - - - - - - - 60
RS-232 Troubleshooting- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 61
Calibration Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 62
Calibration Security - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 62
To Unsecure or Calibration - - - - - - - - - - - - - - - - - - - - - - - - - - 63
To Secure Against Calibration - - - - - - - - - - - - - - - - - - - - - - - - - 64
Calibration Count- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 65
Calibration Message- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 66
Chapter 4 Remote Interface Reference
SCPI Command Summary- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 69
Simpli ied Programming Overview- - - - - - - - - - - - - - - - - - - - - - - - 74
Using the APPLy Command - - - - - - - - - - - - - - - - - - - - - - - - - - 74
Using the Low-Level Commands- - - - - - - - - - - - - - - - - - - - - - - 74
Reading a Query Response - - - - - - - - - - - - - - - - - - - - - - - - - - - 75
Selecting a Trigger Source- - - - - - - - - - - - - - - - - - - - - - - - - - - - 75
Power Supply Programming Ranges- - - - - - - - - - - - - - - - - - - - 76
Using the APPLy Command - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 77
Output Setting and Operation Commands - - - - - - - - - - - - - - - - - - 78
Triggering- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 82
Trigger Source Choices - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 82
Triggering Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 84
System-Related Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 85
State Storage Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 88
Calibration Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 89
Inter ace Con iguration Commands - - - - - - - - - - - - - - - - - - - - - - - 92
The SCPI Status Registers- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 93
What is an Event Register? - - - - - - - - - - - - - - - - - - - - - - - - - - - 93
What is an Enable Register? - - - - - - - - - - - - - - - - - - - - - - - - - - 93
SCPI Status System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 94
The Questionable Status Register - - - - - - - - - - - - - - - - - - - - - - 95
The Standard Event Register- - - - - - - - - - - - - - - - - - - - - - - - - - 96

11
Contents
Contents
The Status Byte Register - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 97
Using Service Request (SRQ) and Serial POLL - - - - - - - - - - - 98
Using *STB? to Read the Status Byte - - - - - - - - - - - - - - - - - - - 99
Using the Message Available Bit (MAV) - - - - - - - - - - - - - - - - - 99
To Interrupt Your Bus Controller Using SRQ - - - - - - - - - - - - 99
To Determine When a Command Sequence is Completed - 100
Using *OPC to Signal When Data is in the Output Bu er - - 100
Status Reporting Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - 101
An Introduction to the SCPI Language - - - - - - - - - - - - - - - - - - - 103
Command Format Used in This Manual- - - - - - - - - - - - - - - - 104
Command Separators - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 105
Using the MIN and MAX Parameters - - - - - - - - - - - - - - - - - - 105
Querying Parameter Settings - - - - - - - - - - - - - - - - - - - - - - - - 106
SCPI Command Terminators - - - - - - - - - - - - - - - - - - - - - - - - 106
IEEE-488.2 Common Commands - - - - - - - - - - - - - - - - - - - - - 106
SCPI Parameter Types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 107
Halting an Output in Progress - - - - - - - - - - - - - - - - - - - - - - - - - - 108
SCPI Con ormance In ormation- - - - - - - - - - - - - - - - - - - - - - - - - 109
IEEE-488 Con ormance In ormation - - - - - - - - - - - - - - - - - - - - - 112
Chapter 5 rror Messages
Execution Errors - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 115
Sel -Test Errors - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 120
Calibration Errors- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 121
Chapter 6 Application Programs
Example Program or C and C++- - - - - - - - - - - - - - - - - - - - - - - - 125
Example Program or Excel 97 - - - - - - - - - - - - - - - - - - - - - - - - - 129
Chapter 7 Tutorial
Overview o this Power Supply Operation - - - - - - - - - - - - - - - - 137
Output Characteristics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 139
Unregulated State - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 141
Unwanted Signals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 141
Extending the Voltage and Current Range - - - - - - - - - - - - - - - - 143
Series Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 143
Parallel Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 143
Remote Programming - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 144
Chapter 8 Specifications
Per ormance Speci ications - - - - - - - - - - - - - - - - - - - - - - - - - - - - 149
Supplemental Characteristics - - - - - - - - - - - - - - - - - - - - - - - - - - 151

12
Contents
Contents
Appendix Service Information
Operating Checklist- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 157
Is the Power Supply Inoperative? - - - - - - - - - - - - - - - - - - - - - 157
Does the Power Supply Fail Sel -Test? - - - - - - - - - - - - - - - - - 157
Types o Service Available - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 158
Standard Repair Service (worldwide)- - - - - - - - - - - - - - - - - - 158
Express Exchange (U.S.A. only) - - - - - - - - - - - - - - - - - - - - - - 158
Repacking or Shipment - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 159
Electrostatic Discharge (ESD) Precautions- - - - - - - - - - - - - - - - 160
Sur ace Mount Repair - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 160
To Replace the Power-Line Fuse - - - - - - - - - - - - - - - - - - - - - - - - 160
Troubleshooting Hints- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 161
Unit Reports Errors 740 to 750 - - - - - - - - - - - - - - - - - - - - - - - 161
Unit Fails Sel -Test- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 161
Bias Supplies Problems - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 161
Sel -Test Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 162
Power-On Sel -Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 162
Complete Sel -Test- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 162
General Disassembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 164
Recommended Test Equipment - - - - - - - - - - - - - - - - - - - - - - - - - 165
Test Considerations- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 166
Operation Veri ication and Per ormance Tests - - - - - - - - - - - - - 166
Measurement Techniques - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 167
Setup or Most Tests - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 167
Current-Monitoring Resistor - - - - - - - - - - - - - - - - - - - - - - - - - 167
General Measurement Techniques - - - - - - - - - - - - - - - - - - - - 168
Electronic Load - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 168
Programming - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 168
Constant Voltage (CV) Veri ications- - - - - - - - - - - - - - - - - - - - - - 169
Constant Voltage Test Setup - - - - - - - - - - - - - - - - - - - - - - - - - 169
Voltage Programming and Readback Accuracy - - - - - - - - - - 169
CV Load E ect (Load Regulation) - - - - - - - - - - - - - - - - - - - - 170
CV Source e ect (Line Regulation)- - - - - - - - - - - - - - - - - - - - 171
CV PARD (Ripple and Noise) - - - - - - - - - - - - - - - - - - - - - - - - 171
Load Transient Response Time - - - - - - - - - - - - - - - - - - - - - - - 173
Constant Current (CC) Veri ications - - - - - - - - - - - - - - - - - - - - - 174
Constant Current Test Setup - - - - - - - - - - - - - - - - - - - - - - - - - 174
Current Programming and Readback Accuracy - - - - - - - - - - 174
CC Load E ect (Load Regulation) - - - - - - - - - - - - - - - - - - - - 175
CC Source E ect (Line Regulation) - - - - - - - - - - - - - - - - - - - 176
CC PARD (Ripple and Noise) - - - - - - - - - - - - - - - - - - - - - - - - 177
Common Mode Current Noise - - - - - - - - - - - - - - - - - - - - - - - - - - 178

13
Contents
Contents
Per ormance Test Record or Your Power Supply - - - - - - - - - - 179
CV Per ormance Test Record - - - - - - - - - - - - - - - - - - - - - - - - 179
CC Per ormance Test Record - - - - - - - - - - - - - - - - - - - - - - - - 180
Calibration Re erence- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 181
Agilent Technologies Calibration Services- - - - - - - - - - - - - - 181
Calibration Interval - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 181
To Unsecure the Power Supply Without the Security Code 181
General Calibration/Adjustment Procedure - - - - - - - - - - - - - - - 182
Front Panel Voltage and Current Calibration- - - - - - - - - - - - 183
Calibration Record or Your Power Supply- - - - - - - - - - - - - - - - 187
Calibration Error Messages - - - - - - - - - - - - - - - - - - - - - - - - - - - - 188
Replaceable Parts - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 189
To Order Replaceable Parts - - - - - - - - - - - - - - - - - - - - - - - - - 189
Schematics and Diagrams - - - - - - - - - - - - - - - - - - - - - - - - - - - 189
E3640A/41A/42A/43A/44A/45A Power Supply Assembly - - - 190
Manu acturer’s List - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 191

14
Contents
Contents

1
Quick Start

16
Quick Start
One o the irst things you will want to do with your power supply is to become
acquainted with the ront panel. The exercises in this chapter prepare the
power supply or use and help you get amiliar with some o its ront-panel
operations.
This chapter is intended or both the experienced and the inexperienced user
because it calls attention to certain checks that should be made prior to
operation.
Throughout this chapter the key to be pressed is shown in the left margin.

Chapter 1 Quick Start
Preliminary Checko t
17
1
Preliminary Checkout
The ollowing steps help you veri y that the power supply is ready or use.
1 Check the list of supplied items.
Veri y that you have received the ollowing items with your power supply. I
anything is missing, contact your nearest Agilent Technologies Sales O ice.
One power cord or your location.
This ser’s Guide.
Quick Re erence Guide.
Certi icate o Calibration.
2 Connect the power cord and turn on the power supply.
The ront-panel display will light up brie ly while the power supply per orms
its power-on self-test. The GPIB address is also displayed. To review the power-
on display with all annunciators turned on, hold down as you turn on
the power supply. I the power supply does not turn on properly, see page 20.
3 Perform a complete self-test.
The complete sel -test per orms a more extensive set o tests than those
per ormed at power-on. Hold down as you turn on the power supply and
hold down the key until you hear a long beep. The self-test will begin when
you release the key ollowing the beep.
If the self-test fails, see the Service Information for instructions on returning
the power supply to Agilent Technologies for service.
Note The power supply is shipped from the factory with a power-line cord that has a plug
appropriate for your location. Your power supply is equipped with a 3-wire grounding
type power cord; the third conductor being the ground. The power supply is grounded
only when the power-line cord is plugged into an appropriate receptacle. Do not
operate your power supply without adequate cabinet ground connection.
Display
Limit
Display
Limit

Chapter 1 Quick Start
O tp t Checko t
18
Output Checkout
The ollowing procedures check to ensure that the power supply develops its
rated outputs and properly responds to operation rom the ront panel. For
complete per ormance and veri ication tests, re er to the Service Information.
Note: I an error has been detected during the output checkout procedures,
the ERROR annunciator will turn on. See "Error Messages" starting on page
113 in chapter 5 or more in ormation.
Voltage Output Checkout
The ollowing steps veri y basic voltage unctions with no load.
1 Turn on the power supply.
The power supply will go into the power-on / reset state; the output is disabled
(the OFF annunciator turns on); its low voltage range is selected, and the OVP
annunciator and low voltage range indication annunciator turn on ( or
example, 8V annunciator turns on or the E3640A model); and the knob is
selected or voltage control.
2 nable the outputs.
The OFF annunciator turns o and the CV annunciator turns on. Notice that
the display is in the meter mode. ‘‘Meter mode’’ means that the display shows
the actual output voltage and current.
3 Check that the front-panel voltmeter properly responds to knob
control for both low and high voltage range.
Turn the knob clockwise or counter clockwise to check that the voltmeter
responds to knob control and the ammeter indicates nearly zero. The flashing
digit can be adjusted by turning the knob.
4 nsure that the voltage can be adjusted from zero to the full rated
value by adjusting the knob.
1You can use the resolution selection keys to move the flashing digit to the
right or left when setting the voltage.
Power
On/Off
Output
1

Chapter 1 Quick Start
O tp t Checko t
19
1
Current Output Checkout
The ollowing steps check basic current unctions with a short across the
power supply’s output.
1 Turn on the power supply.
Make sure that the output is disabled. The OFF annunciator is on
2 Connect a short across (+) and (-) output terminals with an insulated
test lead.
Use a wire size su icient to handle the maximum current (See "Table 2-1 Wire
Rating" on page 34 in chapter 2).
3 nable the output.
The CV or CC annunciator turns on depending on the resistance o the test
lead. Notice that the display is in the meter mode.
4 Adjust the voltage limit value to 1.0 volt.
Set the display to the limit mode (the Limit annunciator will be lashing).
Adjust the voltage limit to 1.0 volt to assure CC operation. The CC annunciator
will turn on. To go back to normal mode, press the key again or let the
display time out a ter several seconds.
5 Set the knob to the current control to check that the front-panel
ammeter properly responds to knob control.
Turn the knob clockwise or counter clockwise when the display is in the meter
mode (the Limit annunciator is o ). Check that the ammeter responds to knob
control and the voltmeter indicates nearly zero (the voltmeter will show the
voltage drop caused by the test lead). The flashing digit can be adjusted by
turning the knob.
6 nsure that the current can be adjusted from zero to the full rated
value.
7 Turn off the power supply and remove the short from the output
terminals.
1You can use the resolution selection keys to move the flashing digit to the
right or left when setting the current.
Power
On/Off
Output
Display
Limit
Display
Limit
Current
Voltage
1