Keithley 2290-5 User Manual

Model 2290-5 5 kV Power Supply
User’s Manual
2290-5-900-01 Rev. A / December 2013
www.keithley.com
*P2290590001A*
2290-5-900-01
A Tektr onix Company
Model 2290-5
5 kV Power Supply
User's Manual
© 2013, Keithley Instruments, Inc.
Cleveland, Ohio, U.S.A.
All rights reserved.
Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part,
without the prior written approval of Keithley Instruments, Inc. is strictly prohibited.
All Keithley Instruments product names are trademarks or registered trademarks of Keithley
Instruments, Inc. Other brand names are trademarks or registered trademarks of their respective
holders.
Document number: 2290-5-900-01 Rev. A / December 2013
Safety precaut ions
The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous conditions may be present.
This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the user documentation for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product warranty may be impaired. The types of product users are:
Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.
Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the instrument. They must be protected from electric shock and contact with hazardous live circuits.
Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.
Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained service personnel may perform installation and service procedures.
Keithley Instruments products are designed for use with electrical signals that are measurement, control, and data I/O connections, with low transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high transient overvoltages. Measurement Category II (as referenced in IEC 60664) connections require protection for high transient overvoltages often associated with local AC mains connections. Certain Keithley measuring instruments may be connected to mains. These instruments will be marked as category II or higher.
Unless explicitly allowed in the specifications, operating manual, and instrument labels, do not connect any instrument to mains. Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test
fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30 V RMS, 42.4 V peak, or 60 VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring.
Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000 V, no conductive part of the circuit may be exposed.
Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.
Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.
When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.
For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.
Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured.
For safety, instruments and accessories must be used in accordance with the operating instructions. If the instruments or accessories are used in a manner not specified in the operating instructions, the protection provided by the equipment may be impaired.
Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or switching card.
When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard. Chassis connections must only be used as shield connections for measuring circuits, NOT as protective earth (safety ground)
connections. If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use
of a lid interlock.
If a screw is present, connect it to protective earth (safety ground) using the wire recommended in the user documentation.
The
symbol on an instrument means caution, risk of danger. The user must refer to the operating instructions located in the
user documentation in all cases where the symbol is mark ed on the instru ment .
The symbol on an instrument means caution, risk of electr ic sho ck. Use stan dar d safety precautions to avoid personal contact with these voltages.
The symbol on an instrument shows that the surface may be hot. Avoid personal contact to prevent burns.
The
If this
symbol indicates a connection terminal to the equipment frame.
symbol is on a product, it indicates that mercury is present in the display lamp. Please note that the lamp must be
properly disposed of according to federal, state, and local laws. The WARNING heading in the user documentation explains dangers that might result in personal injury or death. Always read
the associated information very carefully before performing the indicated procedure. The CAUTION heading in the user documentation explains h az ards that coul d dama ge the instr ume nt. Such dam age may
invalidate the warranty. Instrumentation and accessories shall not be connected to humans. Before performing any maintenance, disconnect the line cord and all test cables. To maintain protection from electric shock and fire, replacement components in mains circuits — inc lud ing the power
transformer, test leads, and input jacks — must be purchased from Keithley Instruments. Standard fuses with applicable national safety approvals may be used if the rating and type are the same. Other components that are not safety-related may be purchased from other suppliers as long as they are equivalent to the original component (note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.
To clean an instrument, use a damp cloth or mild, water-based cleaner. Clean the exterior of the instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with no case or chassis (e.g., a data acquisition board for installation into a computer) should never require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servicing.
Safety precaution revision as of January 2013.
Table of Contents
Introduction ............................................................................................................... 1-1
Welcome .............................................................................................................................. 1-1
Extended warranty ............................................................................................................... 1-1
Contact information .............................................................................................................. 1-1
CD-ROM contents ................................................................................................................ 1-2
Organization of manual ........................................................................................................ 1-2
Features ............................................................................................................................... 1-3
Unpacking and inspecting .................................................................................................... 1-3
Inspect for damage ................................................................................................................... 1-3
Shipment contents .................................................................................................................... 1-3
Optional accessories ............................................................................................................ 1-4
Connecting cables and connectors ........................................................................................... 1-4
Rack mount kits ......................................................................................................................... 1-4
Protection module ..................................................................................................................... 1-4
Front-panel familiarization .................................................................................................... 1-4
Rear-panel familiarization .................................................................................................... 1-6
Line cord ................................................................................................................................... 1-7
Connect to other instruments .................................................................................................... 1-7
Safe configuration and test setup ........................................................................... 2-1
Introduction .......................................................................................................................... 2-1
High voltage safety precautions ........................................................................................... 2-1
Safely connect to instruments .............................................................................................. 2-2
Line voltage selection ................................................................................................................ 2-2
Line fuse.................................................................................................................................... 2-2
Interlock circuit ..................................................................................................................... 2-2
Connecting the interlock of the Model 2290-5 ........................................................................... 2-3
Connecting the Model 2290-5 output to a custom test fixture ................................................... 2-3
Basic operations ....................................................................................................... 3-1
Numeric and cursor buttons ................................................................................................. 3-1
Select, Enter, Clear .............................................................................................................. 3-1
Output filter ........................................................................................................................... 3-2
Store and recall .................................................................................................................... 3-3
Analog programming and monitor ........................................................................................ 3-4
Set output voltage ................................................................................................................ 3-6
Turn output on ...................................................................................................................... 3-6
Set voltage lim it .................................................................................................................... 3-6
Set current limit .................................................................................................................... 3-7
Table of Contents
User's Manual
Model 2290-5 5 kV Power Supply
Set current trip ...................................................................................................................... 3-7
Remote operation ..................................................................................................... 4-1
Introduction .......................................................................................................................... 4-1
Connect GPIB cables to your instrument .................................................................................. 4-1
Set the GPIB address ............................................................................................................... 4-3
Bus connections ........................................................................................................................ 4-3
Command syntax ................................................................................................................. 4-3
Multiple commands ................................................................................................................... 4-3
Command buffer ....................................................................................................................... 4-3
Command queries ..................................................................................................................... 4-3
Command examples ................................................................................................................. 4-4
Remote commands .............................................................................................................. 4-4
Output control commands ......................................................................................................... 4-4
Setting control commands ......................................................................................................... 4-5
Interface control commands ...................................................................................................... 4-7
Status reporting commands ...................................................................................................... 4-7
Status messages ...................................................................................................... 5-1
Status reporting .................................................................................................................... 5-1
Status byte register ................................................................................................................... 5-2
Standard event status register .................................................................................................. 5-2
Errors ......................................................................................................................... 6-1
Error and status messages .................................................................................................. 6-1
Table: Error messages .............................................................................................................. 6-1
Table: Summarizes status messages ....................................................................................... 6-2
Typical applications .................................................................................................. 7-1
Introduction .......................................................................................................................... 7-1
Program example 1 .............................................................................................................. 7-1
Example program code ............................................................................................................. 7-3
Program example 2 .............................................................................................................. 7-4
Example program code ............................................................................................................. 7-8
Performance verification .......................................................................................... 8-1
Introduction .......................................................................................................................... 8-1
Environmental conditions ..................................................................................................... 8-1
Warm-up period ................................................................................................................... 8-1
Recommended test equipment ............................................................................................ 8-2
Verification procedures ........................................................................................................ 8-2
DC voltage accuracy ................................................................................................................. 8-3
DC current limit accuracy .......................................................................................................... 8-5
Model 2290
of Contents
-5 5 kV Power Supply User's Manual Table
Troubleshooting ....................................................................................................... 9-1
Stuck buttons ....................................................................................................................... 9-1
Line power ............................................................................................................................ 9-1
Repeated trips ...................................................................................................................... 9-1
Incorrect rear-panel out put vo ltag e ...................................................................................... 9-2
Front-panel test .................................................................................................................... 9-2
Power-on reset ..................................................................................................................... 9-2
No high voltage .................................................................................................................... 9-2
Service ................................................................................................................................. 9-3
Rear-panel familiarization......................................................... 1-6
Section 1
Introduction
In this section:
Welcome .................................................................................. 1-1
Extended warranty ................................................................... 1-1
Contact information .................................................................. 1-1
CD-ROM contents .................................................................... 1-2
Organization of manual ............................................................ 1-2
Features ................................................................................... 1-3
Unpacking and inspecting ........................................................ 1-3
Optional accessories ................................................................ 1-3
Front-panel familiarization ........................................................ 1-4
Welcome
Thank you for choosing a Keithley Instruments product. The Model 2290-5 5 kV power supply is designed for use in the laboratory and for test applications. It also has excellent regulation and low output voltage ripple. The digital displays provide accurate readings of voltage and current and also provide for easy, precise setting of output values using digital entry of current and voltage values. Output voltage can be set from the front panel, using a remote analog voltage, or over the standard IEEE-488 interface. Voltage and current analog outputs are also available for remote monitoring and analog control.
Extended warranty
Additional years of warranty coverage are available on many products. These valuable contracts protect you from unbudgeted service expenses and provide additional years of protection at a fraction of the price of a repair. Extended warranties are available on new and existing products. Contact your local Keithley Instruments representative for details.
Contact information
If you have any questions after you revie w the information in this documentation, please contact your local Keithley Instruments representative or call Keithley Instruments corporate headquarters (toll-free inside the U.S. and Canada only) at 1-888-KEITHLEY (1-888-534-8453), or from outside the U.S. at +1-440-248-0400. For worldwide contact numbers, visit the Keithley Instruments website (http://www.keithley.com
).
Section
User's Manual
1: Introduction Model 2290-5 5 kV Power Supply
CD-ROM contents
The Series 2290 Power Supply Product Information CD-ROM contains: User's Manuals: Includes information about optional accessories, operation topics, remote operation,
performance verification, troubleshooting, and application examples that you can use as starting point to create your own applications.
LabVIEW™ Driver and IVI Driver software: Instrument drivers are used to communicate with an instrument and help to control it.
Organization of manual
Getting started: Front and rear panel familiarization, LED displays. Safe connection: Configuration and test setup. Basic operations: Set the voltage source, set the voltage trip limit, and set the current limit. Remote operation: Remote interfaces and commands. Status messages: Description of the Model 2290-5 status messages. Errors: Error numbers with descriptions. Typical applications: Detailed examples of how to use commands to accomplish certain test
applications.
Performance verification: Environmental conditions, test equipment, and verification procedures. Troubleshooting: Description of commonly encountered issues and information on how to resolve
them.
1-2 2290-5-900-01 Rev. A/December 2013
Model 2290
Introduction
Features
-5 5 kV Power Supply User's Manual Section 1:
The key features of the Model 2290-5 include:
High-voltage operation – Source voltages up to a maximum of 5 kilovolts (kV).
25 W power capability – Source currents up to 5 milliamps (mA) at 5 kV.
Ease of use – Digital displays and the keypad simplify setting the voltage and current parameters.
Programmable voltage limit – Voltage limit can be preset to ensure safe operation.
Programmable current limits – Current limit and trip point can be preset to prevent possible
equipment damage.
Output filter – Reduces output ripple and noise.
Monitor outputs – Provide 0 – 10 V signals that can be used to monitor the high-voltage output
and current.
External voltage control – Allows the high-voltage output value to be controlled with a 0 – 10 V
input signal.
Standard IEEE-488 interf ac e – Allows the instrument to be remotely controlled by a personal
computer.
Safety interlock – Connections to an internal circuit that shuts down the high-voltage output when
an external circuit is opened. The external circuit would typically include a limit switch on a test fixture door.
Unpacking and inspecting
Inspect for damage
Upon receiving the Model 2290-5, carefully unpack the unit, and inspect for any obvious signs of physical damage that might have occurred during shipment. Notify the shipping agent of any damage immediately.
Shipment contents
The following items are included with every Model 2290-5 order:
Model 2290-5 high voltage power supply
Model 2290-5 product information CD-ROM
AC line power cord
Model 2290-5 additional accessories, as ordered
2290-5-900-01 Rev. A/December 2013 1-3
Section
User's Manual
1: Introduction Model 2290-5 5 kV Power Supply
Optional accessories
Connecting cables and connect ors
The following optional accessories are available for use with the Model 2290-5:
Model 2290-5-SHV – SHV plug to SHV plug cable; 3.05 meters (10 feet).
Model 2290-5-MHV – SHV plug to MHV male cable; 3.05 meters (10 feet).
Model 2290-INT-CABLE – 3-pin interlock connector to unterminated cable; 3.05 meters (10 feet).
Model 2290-5-SHVBH – SHV male bulkhead connector.
Rack mount kits
Model 2290-5-RMK-2 – double rack-mount kit; mounts two power supplies side-by-side.
Model 2290-5-RMK-1 – single rack-mount kit; mounts a single power supply.
Model 4299-7 – shelf rack-mount kit; mounts one or two power supplies.
Protection module
Model 2290-PM-200
The protection module is intended for use in applications where a device breakdown or other potential failure could connect the high-voltage output of the Model 2290-5 or Model 2290-10 High Voltage Power Supply to a lower voltage source-measure unit (SMU).
Front-panel familiarization
The Model 2290-5 front panel is shown below. Descriptions of the controls on the front panel follow the figure.
Figure 1: Model 2290-5 front panel
1-4 2290-5-900-01 Rev. A/December 2013
Model 2290
Introduction
POWER button
Press the POWER button so that it is in the on position to turn the position to turn it off.
HIGH VOLTAGE
This is a three position switch. In the OFF/RESET position, the high
TRIP
VOLTS LED display
Displays the output voltage.
Center LED display
Displays the value of the parameter that is entered or adjusted, including Error and status messages that may occur.
mA LED display
Displays the output current.
SELECT, ENTER,
The SELECT button is used to choose which parameter is being
was entered.
buttons
STATUS indicators
Three LEDs indicate the instrument's status. The LIMIT LED is on
when one of the two available output filters is enabled.
RESET button
removed.
FILTER buttons
The output filter, which may be used to reduce output ripple and
FILTER 2 buttons.
GPIB ADDR buttons
The GPIB address buttons set the GPIB primary address.
LOCAL button
The LOCAL button takes the instrument out of remote and restores operation of other front panel controls.
STO and RCL
STO (store) and RCL (recall) allow up to nine complete instrument
settings.
-5 5 kV Power Supply User's Manual Section 1:
instrument on. Press the POWER button so that it is in the off
enable switch
CLR (Clear) button
Numeric and cursor
voltage is off, and all trips are cleared. In this position, t he hi gh voltage is locked off and cannot be turned on by computer control. The ON position is a momentary-contact position and turns on the high voltage for manual or rear panel analog control. Note that the switch should be held in the ON position for at least a half second to turn the high voltage on. In the middle position, the high voltage is enabled and can be turned on by commands sent over the IEEE-488 bus. The ON LED above the switch indicates that the high voltage is on; the yellow
LED indicates a trip has occurred.
displayed in the center display. The ENTER button enters the parameter shown in the center display. The CLR (clear) button erases the value in the center display and recalls the last value that
All parameters are adjusted using the cursor or numeric buttons.
when the unit is in current limit. The REM LED is on when the unit is in remote, and the front panel is locked out. The FILTER LED is on
Reset mode determines how the instrument responds after a voltage or current trip. There are two modes: MAN and AUTO. In MAN (manual) mode the high voltage remains off after a trip and requires that the operator manually turn it back on. In AUTO (automatic) mode the unit waits until the output voltage has fallen to 2% of its full-scale value and then turns the high voltage back on. This feature is useful when dealing with loads that occasionally short circuit, but recover after high voltage has been
noise, is controlled with the FILTER, NO FILTER, FILTER 1, and
buttons
settings to be saved in nonvolatile memory. RCL 0 recalls the default
2290-5-900-01 Rev. A/December 2013 1-5
Section
User's Manual
Power entry
The power entry module contains the line fuse, the line voltage selection,
selecting the correct line voltage and fuse.
HIGH VOLTAGE output
The HIGH VOLTAGE output port is an SHV male port that connects the to-MHV mated high voltage cables are available.
Analog I/O
The SET/MON and I MON BNC jacks provide voltage and current monitor
jack output voltage will be 4
V.
IEEE-488 STD PORT
The 24-pin IEEE-488 (GPIB) port allows computer control of the Model 2290-5.
INTERLOCK port
The contacts of the interlock port allow an external limit switch in the connector path. The circuit must be engaged to allow high-voltage output.
1: Introduction Model 2290-5 5 kV Power Supply
Rear-panel familiarization
The Model 2290-5 rear panel is shown below. Descriptions of the controls on the rear panel follow the figure.
Figure 2: Model 2290-5 rear panel
and includes filtering to block high-frequency noise from entering or exiting the unit. Refer to the Safely connect to instruments topic for instructions on
port
Model 2290-5 source output to external equipment. SHV-to-SHV and SHV-
signals, or an external voltage control input and current monitor, depending upon the setting of the VOLTAGE select switch. If the switch is in the MON (monitor) position, the front panel controls the voltage. If the switch is in the SET position, the rear panel analog voltage will control the output voltage
When the VOLTAGE select switch is in the MON (monitor) position , both jacks are 0 to +10 V outputs corresponding to 0 to full scale. For example, if the voltage source output is 2 kV, the SET/MON
1-6 2290-5-900-01 Rev. A/December 2013
Model 2290
Introduction
-5 5 kV Power Supply User's Manual Section 1:
Line cord
The Model 2290-5 uses a detachable, three-wire power cord for connection to the power source and to a safety earth ground through a grounded AC outlet. Only use the power cord that's provided with your instrument, or an equivalent adequately rated power cord.
The exposed metal parts of the instrument are connected to the outlet ground through the line cord to provide protection against electrical shock. Always use an AC outlet that has a properly connected safety ground.
Connect to other instrument s
The rear panel SET/MON and I MON BNC jack shields are connected to chassis ground and the AC power source ground using the power cord. Do not apply any voltage to the shields. The HIGH VOLTAGE SHV port is also connected to chassis ground and cannot be floated above ground.
This unit contains hazardous voltages. Be absolutely certain that the high voltage is completely discharged before removing or connecting the high-voltage cable. High-voltage cables can store charge if they are disconnected from the supply while high voltage is turned on, and can cause personal injury or death if not handled properly. Use only connecting cables with a rated working voltage of 5 kV or higher (see the
accessories
section for more information).
Do not connect the high-voltage output to exposed circuitry. And load connected to the high-voltage output should be enclosed in a metal shield that is connected to safety earth ground using #18 AWG or larger wire.
If the instrument is used in a manner not specified by Keithley Instruments, the protection provided by the equipment may be impaired.
Optional
2290-5-900-01 Rev. A/December 2013 1-7
Interlock circuit ......................................................................... 2-2
In this section:
Introduction .............................................................................. 2-1
High voltage safety precautions ............................................... 2-1
Safely connect to instruments .................................................. 2-2
Introduction
The Model 2290-5 can generate hazardous voltages. It is intended for use with a test fixture or in a test system that has safety mechanisms in place to prevent an operator from accessing these voltages.
Section 2
Safe configurat ion and test setup
This section describes how to use the Model 2290-5 to test a device with a custom test fixture or system.
High voltage safety precautions
Make sure that you read and observe the following high voltage safety precautions before operating the Model 2290-5.
The Model 2290-5 is capable of sourcing hazardous live high voltages that can cause personal injury or death due to electric shock. This unit should be used only by qualified personnel who recognize the dangers of high voltages.
Make certain that the source is turned off and that high voltage is completely discharged before removing the high-voltage cable. High-voltage cables can store charge if they are disconnected from the supply while the high voltage is on. The charge on the cable can cause injury or damage even after the cable is disconnected from the unit.
The Model 2290-5 is provided with an interlock circuit that must be engaged to allow high voltage output. The interlock helps facilitate safe operation of the equipment in a test system. Bypassing the interlock could expose the operator to hazardous voltages that could result in personal injury or death.
Section
User's Manual
2290-5
120 V AC
2290E-5
220/240 V AC
2290J-5
100 V AC
2290-5
120 V AC
1 A, 250 V, 3 AG, Slow Blow
FU-10 2290J-5
100 VAC
2290E-5
220/240 V AC
1/2 A, 250 V, 3 AG, Slow Blow
FU-4
2: Safe configuration and test setup Model 2290-5 5 kV Power Supply
Safely connect to instruments
Line voltage selection
There are three versions of the Model 2290-5 to allow operation from a 100, 120, 220, or 240 V nominal AC power source with a line frequency of 50 or 60 Hz. Before connecting the power cord to a power source, verify that the line voltage selector card, located in the rear panel fuse holder, is set for the correct AC line voltage.
The following table indicates the three versions of the Model 2290-5 5 kV power supply and their respective line voltage:
Model Nominal voltage
This instrument may be damaged if operated with the line voltage selector set for the wrong AC line voltage, or if the wrong fuse is installed.
Line fuse
Verify that the correct line fuse is installed before connecting the line cord as follows:
Model Line voltage Fuse type Keithley fuse
Interlock circuit
An interlock circuit is provided on the rear panel of the instrument. This circuit must be engaged to allow the Model 2290-5 to produce output voltages. When the safety interlock signal is engaged, all voltage ranges of the instrument are available. However, when the safety interlock signal is disengaged, the output voltage is turned off.
The Model 2290-5 is provided with an interlock circuit that must be engaged to allow high voltage output. The interlock helps facilitate safe operation of the equipment in a test system. Bypassing the interlock could expose the operator to hazardous voltages that could result in personal injury or death.
part number
2-2 2290-5-900-01 Rev. A/December 2013
Model 2290
Safe configuration and test setup
-5 5 kV Power Supply User's Manual Section 2:
Connecting the interl oc k of the Model 2290-5
The interlock pins control the high-voltage supply. The pin locations and connections are shown in the following figure. The pins are:
Pin 3: Chassis ground
Pin 2: Interlock enable
Pin 1: +5 V DC out (current limited)
Figure 3: Model 2290-5 Interlock connector wiring
The following figure shows how to connect the Model 2290-5 internal 5 V source in order to engage the external interlock (or interlocks) circuits:
Figure 4: Model 2290-5 Internal 5 kV source
Connecting the Model 2290-5 output to a custom test fixture
Keithley Instruments offers several accessories that can help you when building a custom test fixture or system.
You can use a high-voltage SHV bulkhead connector (Model 2290-5-SHVBH) on your test fixture. The following sections show you how to connect a Model 2290-5 to a custom fixture and also how to make connections to the device inside the custom fixture.
Using SHV coaxial connections
If you need to convert from safe high-voltage (SHV) to another connector type, be sure to only adapt SHV connectors to connectors that are rated to the maximum possible voltage in your test setup. If you use adapters that are not rated to the maximum possible voltage in your test setup, electric shock may result.
2290-5-900-01 Rev. A/December 2013 2-3
Section
User's Manual
2: Safe configuration and test setup Model 2290-5 5 kV Power Supply
Device connections Equipment used in the next figure:
1 high-voltage diode enclosed in a safe test fixture
1 Model 2290-5 high-voltage power supply
1 Model 2290-5-SHV cable
1 Model 2290-5-SHVBH bulkhead connector
The next figure shows a test configuration using the Model 2290-5 power supply with a safe interlock test enclosure circuit:
Figure 5: Model 2290-5 high-voltage output connections
2-4 2290-5-900-01 Rev. A/December 2013
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