Tektronix Series 2200 Multichannel Programmable DC Power Supplies Specifications,Performance Verification Reference manual

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Series 2200

Multichannel Programmable DC Power Supplies

Specifications and Performance Verification

Technical Reference

2220S-905-01 Rev. B

/ Dec 2013

ECNEDIFNOCFOERUSAEMRETAERGA

Multichannel Programmable DC Power Supplies

Series 2200

Specifications and Performance Verification

Technical Reference

Cleveland, Ohio, U.S.A.

Any unauthorized reproduction, photocopy, or use 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: 2220S-905-01 Rev. B / Dec 2013

Safety precautions

The following safety precautions should be observed before using this product and an y 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 install a tion, 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 inst ruments 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.

screw is present, connect it to protective earth (safety ground) using the wire recommended in the user documentation.

If a

The user documentation in all cases where the symbol is marked on the instrument.

The 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 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 hazards that could damage the instrument. Such damage 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 — including 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 yo u are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.

symbol on an instrument means caution, risk of danger. The user must refer to the operating instructions located in the

symbol on an instrument means caution, risk of electric shock. Use standard safety precautions to avoid personal

symbol indicates a connection terminal to the equipment frame.

To clean an instrument, use a damp cloth or mild, water-based cleaner. Clean the exterior of the instrument only. Do n ot app ly 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 of January 2013.

ii 2220S-900-01 Rev. C/December 2013

Table of Contents

Preface .............................................................................................................. iii

Welcome ........................... ................................ .................................. .......... iii

Products.............................. .................................. ................................ ........ iii

Extended Wa

Contact Information .......................................................................................... iv

Speciﬁcations .............................. ................................ .................................. ....... 1

Performance Veriﬁcation ................. ................................ .................................. ...... 13

Test Record ................ ................................ .................................. .................. 15

Performance Veriﬁcation Procedures ....................... ................................ ................ 23

rranty ......................... .................................. ................................ iv

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference i

Table of Contents

List of Tables

Table 1: Series 2220 Dual Channel speciﬁcations.............................................................. 1

Table 2: Ser

Table 3: Series 2230 Triple Channel speciﬁcations for Channel 3........................... ................. 5

Table 4: Combined channel characteristics............................... ................................ ....... 7

Table 5: Series 2230 Triple Channel unit characteristics....................................................... 7

Table 6: Mains power characteristics ................. ................................ ........................... 8

Table 7: Common characteristics................................................................................. 8

Table 8: T

Table 9: Interfaces and output ports ......... ................................ ................................ ..... 9

Table 10: Mechanical characteristics............................................................................ 10

Table 11: Environment performance .... ................................ .................................. ...... 10

Table 12: Keypad special operations................ ................................ ............................ 10

Table 13: Safety characteristics.................................................................................. 11

Table

family .......................... ................................ .................................. .............. 12

Table 15: DC voltage accuracy with remote sense .................... ................................ ........ 16

Table 16: DC voltage accuracy without remote sense......................................................... 17

Table 17: DC voltage readback accuracy ....................................................................... 18

Table 18: DC voltage line regulation............................................................................ 19

le 19: DC voltage load regulation ......... .................................. ................................ 19

Tab

Table 20: DC current accuracy................................................................................... 20

Table 21: DC current readback accuracy ....................................................................... 21

Table 22: DC current line regulation ............................................................................ 22

Table 23: DC current load regulation ..... .................................. ................................ .... 22

Table 24: Voltage noise at 7 MHz ....... ................................ ................................ ........ 22

Table 25: Voltage noise at 20 MHz.............................. .................................. .............. 22

Table 26: Current noise at 20 MHz.......... ................................ ................................ .... 22

Table 27: Test equipment ........... ................................ ................................ .............. 24

ies 2230 Triple Channel speciﬁcations for Channels 1 and 2 .............. ..................... 3

erminal strip ................................ ................................ ............................. 9

14: Electromagnetic Compatibility (EMC) — Measurement, laboratory, and control product

ii Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Preface

Welcome

Preface

Products

Thank you fo Multichannel Programmable DC Power Supplies are ﬂexible DC sources designed to power a wide range of applications. The model 2230-30-1 and its variants offer three power channels and the model 2220-30-1 and its variants provide two channels. The output channels on both models are independent and isolated, allowing you to power circuits with different references or polarities. Each channel c feature remote sense capability which can be used to reduce the effect of lead resistance, delivering 0.03% basic voltage accuracy even when using long leads. Basic current ac curacy is 0.1% for all channels and linear regulation delivers low noise – less than 3 mVp-p. Flexible display modes make it easy to use the two 30 V outputs in combination, and the USB interface makes it easy to build PC-bas model include a GPIB interface in combination with the USB interface.

compact power supplies cover a wide range of applications without

These covering a lot of bench space. Versions of these power supplies are available for use at 100 VAC nominal line voltage which is common in Japan. These versions are indicated by the "J" sufﬁx.

This manual contains information about the following products:

r using a Keithley Instruments product. The Series 2200

an be enabled or disabled as your application requires. All outputs

ed systems without converters or special cables. The G vers ions of each

Model Description

2220-30-1 Programmable Dual Channel DC Power Supply

2220G-30-1 Programmable Dual Channel DC Power Supply with GPIB Interface

2220J-30-1 Programmable Dual Channel DC Power Supply for Japan

2220GJ-30-1 Programmable Dual Channel DC Power Supply with GPIB Interface for Japan

2230-30-1 Programmable

2230G-30-1 Programmable Triple Channel DC Power Supply with GPIB Interface

2230J-30-1 Triple Channel Programmable DC Power Supply for Japan

2230GJ-30-1 Programmable Triple Channel DC Power Supply with GPIB Interface for Japan

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference iii

Triple Channel DC Power Supply

Preface

Extended Warranty

Contact Information

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 Instrument

s representative for details.

If you have following sources:

1. Keithley

2. Keithley web forum (http://forum.keithley.com)

3. 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 Instruments website (http://www.keithley.com).

any questions after reviewing this information, please use the

Instruments website (http://www.keithley.com)

+1-440-248-0400. For worldwide contact numbers, visit the Keithley

iv Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Speciﬁcations

This section contains speciﬁcations for the Series 2200 Multichannel Programmable DC Power Supplies. All speciﬁcations are guaranteed unless noted as "typical. not guaranteed. Speciﬁcations that are marked with the in Performance Veriﬁcation.

Table 1: Series 2220 Dual Channel speciﬁcations

Parameter Description

Channel 1 and 2, nominal

Constant voltage operation, nominal

Voltage range

This is the range over which the output voltage is adjustable

Remote sense voltage range

Voltage resolution, nominal

age setting

Volt accuracy with remote sense

Voltage setting accuracy without remote sense

Current limit, nominal

Voltage temperature coefﬁcient, typical

Constant current operation, nominal

Current range

This is the range over which the output current is adjustable

Channels 1 and 2 are symmetrical and isolated. They are primarily targeted at powering analog circuits operating around ground.

The unit may be set to a constant voltage over a range of currents

0to30V

The total voltage from the – terminal to the + terminal may not exceed the rated full scale (FS) voltage + 0.2 V, allowing a minimum of 0.1 V/line for remote sense.

The maximum voltage difference between a terminal and its associated sense line may not exceed 1 V.

The available overhead above full scale voltage to support remote sense is limited to 0.1 V/line. However, this widens as the output voltage decreases to the ultimate limit of 1 V/line. Thus, the maximum difference speciﬁcation controls operation except for the 2 V of output below full scale output.

1mV

±(0.03% of settling + 10 mV) at 25 °C ±5 °C with remote sense.

±(0.05% of settling + 10 mV) at 25 °C ±5 °C without remote sense.

Deﬁned by the c onstant current setting. The changeover is automatic.

±(0.03% + 10 m V) per °C outside the 25 °C ±5 °C standard range

The unit may be set to a constant current over a range of voltages.

0Ato1.5A

" Typical speciﬁcations are provided for your convenience but are

symbol are checked

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 1

Speciﬁcations

Table1:Series2220DualChannelspeciﬁcations (cont.)

Parameter Description

Current resolution, nominal

Current set

ting

accuracy

Voltage li

mit,

nominal

Current temperature

nt, typical

coefﬁcie

Meter, nominal Internal readback capability. Voltage and current can be measured internally.

Current readback

ion, nominal

resolut

Current

readback accuracy

Current readback temperature coefﬁcient, typical

Voltage

readback accuracy

Voltage readback resolution, nominal

Voltage readback temperature

ﬁcient, typical

coef

Line regulation

– voltage

Line regulation

rent

–cur

Load regulation

– voltage

Load regulation

rrent

–cu

Voltage ripple,

20 MHz bandwidth

Voltage ripple,

Hz bandwidth

Current ripple,

20 MHz bandwidth

Common Mode Current Noise

1mA

±(0.1% + 5 mA) at 25 °C ±5 °C

0to30V

±(0.1% + 5 mA) per °C outside the 25 °C ±5 °C standard range

1mA

of reading + 5 mA) at 25 °C ±5 °C

±(0.1%

±(0.1% + 5 mA) per °C outside of the 25 °C ±5 °C standard range

±(0.03% of reading + 10 mV) at 25 °C ±5 °C standard range

1mV

±(0.03% of reading + 10 mV) per °C outside the 25 °C ±5 °C standard range

ge over the full rated line voltage range: ±(0.01% + 3 mV)

Chan

Change over full rated line voltage range: ±(0.1% + 3 mA)

nge from 0 to 100% of full scale current: ±(0.01% + 3 mV)

Cha

Change from 10 to 90% of full scale voltage: ±(0.01% + 3 mA)

<3mV <1.

<1mV

<5mA

<1.5μA

and 20 mV

RMS

5mV

and 12 mV

RMS

and 3 mV

RMS

, 700 Hz bandwidth.

RMS

p-p

,typical

p-p

2 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Table 1: Series 2220 Dual Channel speciﬁcations (cont.)

Parameter Description

Voltage transient response settling time, load change, typical

Voltage transient response settling time, setting change, rising, typical

Voltage transient response settling time, setting change, falling, typical

Unit SpeciﬁcMains Requirements

<150 ms to within 75 mV following a change from 0.1 A to 1 A.

<150 ms from beginning of excursion to within 75 mV of terminal value following a change from 1 V to 11 V intoa10Ω resistor.

<150 ms from beginning of excursion to within 75 mV of terminal value following a change from 11 V to 1Vintoa10Ω resistor.

2220-30-1 and 2220G-30–1

Line Selection Switch

110V

220V

Voltage Frequency Fuse Rating Max VA +

110/115/120 50/60 Hz

220/230/240 50/60 Hz

Speciﬁcations

6.3A TH 250V 350

3.15A TH 250V 350

2220J-30-1 and 2220GJ-30–1

Voltage Frequency Fuse Rating Max VA +

50/60 Hz

6.3A TH 250V 350

3.15A TH 250V 350

Maximum Input VA, typical

Line Selection Switch

110V 100

220V 200

350 VA

Table2:Series2230TripleChannelspeciﬁcations for Channels 1 and 2

Parameter Description

Channel 1 and 2, nominal Channels 1 and 2 are symmetrical and isolated. They are primarily targeted at powering analog

circuits operating around ground.

Constant Voltage Operation, nominal

Voltage Range

The unit may be set to be a constant voltage over a range of currents.

The output voltage may be adjusted from 0V to 30V.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 3

Speciﬁcations

Table2:Series2230TripleChannelspeciﬁcations for Channels 1 and 2 (cont.)

Parameter Description

Remote Sense Voltage Range The total voltage from - terminal to + terminal may not exceed the rated full scale voltage +0.2V,

allowing a minimum of 0.1V/line for remote sense.

The Maximum voltage difference between a terminal and its associated sense line m ay not exceed 1V.

The available overhead above full scale voltage to support remote sense is limited to 0.1 V/line. However, this widens as the output voltage decreases to the ultimate l imit of 1 V/line. Thus, the maximum difference speciﬁcation controls operation except for the 2 V of output below full scale output.

Voltage Resolution, nominal 1 mV √ Voltage Setting Accuracy with

Remote Sense √ VoltageSetting Accuracy without

Remote Sense

Current Limit, nominal Deﬁned by Constant Current setting. Changeover is automatic.

Voltage Temperature Coefﬁcient, typical

Constant Current Operation, nominal

Current Range The output voltage may be adjusted from 0 A to 1.5 A.

Current Resolution, nominal √ Current Setting Accuracy

Voltage Limit, nominal 0 to 30 V.

Current Temperature Coefﬁcient, typical

Meter, nominal Internal readback capability. Voltage and current are measured internally.

Current Readback Resolution, nominal

urrent Readback Accuracy

Current Readback Temperature Coefﬁcient, typical

Voltage Readback Accuracy

Voltage Readback Resolution, nominal

Voltage Readback Temperature Coefﬁcient, typical

Line regulation – Voltage

Line regulation – Current

Load regulation – Voltage

+/-(0.03% of setting + 10 mV) at 25 °C ±5 °C with Remote Sense

+/-(0.05% of setting + 10 mV) at 25 °C ±5 °C without Remote Sense

+/-(0.03% of setting + 10 mV) per °C outside of the 25 °C ±5 °C standard range

The unit may be set to be a constant current over a range of voltages.

1mA

+/-(0.1% + 5 mA) at 25 °C ±5 °C.

+/-(0.1% + 5 mA) per °C outside of the 25 °C ±5 °C standard range

1mA

±(0.01% of reading + 5 mA) at 25 °C ±5 °C

±(0.01% + 5 mA) per °C outside the 25 °C ±5 °C standard range

±(0.03% of reading + 1 0 mV) at 25 °C ±5 °C

1mV

±(0.03% of reading + 10 mV) per °C outside the 25 °C ±5 °C standard range

Change over the full rated line voltage range: ±(0.01% + 3 mV)

Change over full rated line voltage range: ±(0.1% + 3 mA)

Change from 0 to 100% of full scale. Voltage: ±(0.01% + 3 mV)

4 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Table 2: Series 2 230 Triple Channel speciﬁcations for Channels 1 and 2 (cont.)

Speciﬁcations

Load regulat

ion – Current

Change from 10 to 90% of full scale. Current: ±(0.01% + 3 mA)

While not readily testable, similar performance is expected over the 0% to 100% of full scale range of the product.

Voltage Ripple, 20 MHz bandwidth

<3mV <1.5mV

Voltage Ripple, 7 MHz bandwidth < 1 mV

Current Ripple, 20 MHz

<5mA

and 20 mV

RMS

and3mV

RMS

and 12 mV

p-p

,typical

bandwidth

Common Mode Current Noise

Voltage Transient Response

<1.5μA

<150 ms to within 75 mV following a change from 0.1 A to 1 A.

. 700 Hz bandwidth.

RMS

Settling Time, Load Change, typical

Voltage Transient Response Settling Time, Setting Change,

<150 ms from beginning of excursion to within 75 mV of terminal value following a change from1Vto11Vintoa10Ω resistor.

Rising, typical

Voltage Transient Response Settling time, Setting Change,

<150 ms from beginning of excursion to within 75 mV of terminal value following a change from11Vto1Vintoa10Ω resistor.

Falling, typical

Table 3: Series 2230 Triple Channel speciﬁcations for Channel 3

Parameter Description

Channel 3, nominal

Constant Voltage Operation,

nal

nomi

Voltage Range

ote Sense Voltage Range

Rem

ltage Resolution, nominal

Voltage Setting Accuracy with

√

Remote Sense √ VoltageSetting Accuracy without

Remote Sense

Current Limit, nominal Deﬁned by Constant Current setting. Chageover is automatic.

Voltage Temperature Coefﬁcient, typical

A third channel is provided. It is primarily targeted at logic power.

The unit may be set to be a constant voltage over a range of currents.

utput voltage may be adjusted from 0 V to 6 V.

The o

total voltage from - terminal to + terminal may not exceed the rated full scale voltage +0.2V,

The allowing a minimum of 0.1V/line for remote sense.

The maximum voltage difference between a terminal and its associated sense line may not

eed 1V.

exc

The available overhead above full scale voltage to support remote sense is limited to 0.1 V/line. However, this widens as the output voltage decreases to the ultimate limit of 1 V/line.

us, the maximum difference speciﬁcation controls operations except for the 2 V of output

Th below full scale output.

/-(0.03% of setting + 10 mV) at 25 °C ±5 °C with Remote Sense

+/-(0.05% of setting + 10 mV) at 25 °C ±5 °C without Remote Sense

+/-(0.03% of setting + 10 mV) per °C outside of the 25 °C ± 5 °C standard range

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 5

Speciﬁcations

Table 3: Series 2230 Triple Channel speciﬁcations for Channel 3 (cont.)

Constant Current Operation,

The unit may be set to be a constant current over a range of voltages.

nominal

Current Range The output voltage m ay be adjusted from 0 A to 5 A.

Current Resolution, nominal √ Current Setting Accuracy

1mA

+/-(0.1% + 5 mA) at 25 °C ±5 °C.

Voltage Limit, nominal 0 to 6 V.

Current Temperature Coefﬁcient,

+/-(0.1% + 5 mA) per °C outside of the 25 °C ±5 °C standard range

typical

Meter, nominal Internal readback capability. Voltage and current can be measured internally. DVM connections

exist to allow measuring external voltages.

Current Readback Resolution,

1mA

nominal

Current Readback Accuracy

Current Readback Temperature

cient, typical

Coefﬁ

Voltage Readback Accuracy

Voltage Readback Resolution,

±(0.1% of reading + 5 mA) at 25 °C ±5 °C

±(0.1% +5mA) per °C outside of the 25 °C ± 5 °C standard range

3% of reading + 1 0 mV) at 25 °C ±5 °C

±(0.0

0.1 mV

nominal

Voltage Readback Temperature

±(0.03% of reading + 10 mV) per °C outside of the 25 °C ±5 °C standard range

Coefﬁcient, typical

Line Regulation – Voltage

Line Regulation – Current

Load Regulation – Voltage

Load Regulation – Current

ge Ripple, 20 MHz

Volta

Bandwidthh

Voltage Ripple, 7 MHz

Change over the full rated line voltage range: ±(0.01% + 3 mV)

Change over full rated line voltage range: ±(0.1% + 3 mA)

Change from 0 to 100% of full scale. Voltage: ±(0.01% + 3 mV)

Change from 10 to 90% of full scale. C urrent: ±(0.01% + 3 mA)

<3mV <1.5mV

<1mV

and 20 mV

RMS

and3mV

RMS

and 12 mV

p-p

,typical

bandwidth

nt Ripple, 20 MHz

Curre

Less than 6 mA

RMS

Bandwidth

μA

Common Mode Current Noise

age Transient Response

Volt

<1.5

<150 ms to within 75 mV following a change from 0.1 A to 1 A.

. 700 Hz bandwidth.

RMS

Settling Time, Load Change, typical

Voltage Transient Response Settling Time, Setting Change,

ing, typical

Ris

Voltage Transient Response

ttling Time, Setting Change,

Se Falling, typical

<150 ms from beginning of excursion to within 75 mV of terminal value following a change

m0.4Vto4Vintoa4Ω resistor.

fro

50 ms from beginning of excursion to within 75 mV of terminal value following a change

<1 from0.4Vto4Vintoa4Ω resistor.

The speciﬁcation does not include Command Decode Time.

6 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Speciﬁcations

Table 4: Combin

Characteristic Description

Combined Channel Characteristics, nominal

Series Combinations, nominal Deliver up to 60 V when CH1 and CH2 are wired in series. Voltage Readback is the combined

Available Series Conﬁgurations, nominal

Series Co Accuracy, typical

Series Combination Current Accuracy, typical

Paralle

Available Parallel Conﬁgurations, nominal

Parallel Combination Voltage Accur

Para Accuracy, typical

mbination Voltage

l Combination, nominal

acy (typical)

llel Combination Current

ed channel characteristics

The unit can be conﬁgured to provide functionality on Channel 1 and Channel 2 together.

voltage. Se only. If the currents in the two channels are signiﬁcantly different there is no indication of CC/CV status for Channel 2.

Channels 1 and 2 are connected in series. Either channel 1 or channel 2 m ay be the most positive s

±(0.10% o

±(0.1% + 5 mA) at 25 °C ±5 °C for Channel 1's current.

The current is only measured for Channel 1. The error is the same as for the Current Measure

Deliver combined current.

CH1 and CH2 are connected in parallel (+ to + and – to –)

±(0.05% of setting + 10 mV) at 25 °C ±5 °C

±(0.

ment Accuracy.

s up to 3 A when CH1 and CH2 are wired in parallel. The meter reads back the

2% +10 mA) at 25 °C ±5 °C

ttings changes are to the combined voltage. Current Readback is for Channel 1

ource.

f the setting + 50 mV) at 25 °C ±5 °C

Table 5: Series 2230 Triple Channel unit characteristics

Characteristic Description

Unit Characteristics, nominal Characteristics and speciﬁcations of features unique to this product, but unrelated to a

particular channel.

Unit SpeciﬁcMains Requirements

Maximum Input VA, typical 450 VA

2230-30-1 and 2230G-30–1

Line Selection Switch

110V

220V

2230J-30-1 and 2230GJ-30–1

Line Selection Switch

110V 100

220V 200

Voltage Frequency Fuse Rating Max VA

110/115/120 50/60 Hz

220/230/240 50/60 Hz

Voltage Frequency Fuse Rating Max VA

50/60 Hz

6.3A TH 250V 450

3.15A TH 250V 450

6.3A TH 250V 450

3.15A TH 250V 450

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 7

Speciﬁcations

Table 6: Mains p

ower characteristics

Characteristic Description

Source Voltage

The 2220-30-1, 2220G-30-1, 2230-30-1, and 2230G-30-1 each have two ranges, selectable with a bottom panel switch. Each range is capable of ±10% excursions.

Marked Allowed nominal voltages

110

220

The 2220J-30-1, 2220G J-30-1, 2230J-30-1, and 2230GJ-30-1 each have two ranges, selectable with a bottom panel switch. Each range is capable of ±10% excursions.

Marked Allowed nominal voltage

110

220

Source Frequency 50/60 Hz

Fuse Ra

ting, nominal

Model

2230, 2230G and 2220, 2220G

Table 7: Common characteristics

110/115/120 VAC

220/230/240 VAC

100 VAC

200 VAC

RMS

110 VAC setting 220 VAC setting

250V

6.3A T 159-0399-00

T 250V

3.15A 159-0493-00

RMS

Item Description

Setup Memory, nominal

30 setup memory locations

Output Timer, nominal The product includes a timer that can be used to disable the output after a predetermined

period of time.

Timer Set Time, nominal

The Timer may be set to any value between 1 and 999,999 seconds.

Timer Accuracy ±100 ppm

Software Voltage Limit, nominal The product offers the opportunity to change the maximum settable voltage on a temporary

basis. The MAX VOLT menu entry, when set below hardware maximum limit, disallows adjusting the product to voltages in excess of the MAX VOLT limit.

Cleaning Requirements, nominal Inspect the power supply as often as operating conditions require. To clear the exterior

surface, perform the following steps:

1. Remove loose dust on the outside of the power supply with a lint free cloth. Use care to avoid scratching the display.

2. Use a soft cloth dampened with water to clear the power supply. Use an aqueous solution of 75% isopropyl alcohol for more efﬁcient cleaning.

Caution: To avoid damage to the surface of the power supply, do not use any abrasive or chemical cleaning agents.

Caution: Avoid getting moisture inside the unit during external cleaning. Use only enough cleaning solution to dampen the cloth or swab.

8 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Speciﬁcations

Table 7: Common characteristics (cont.)

Item Description

Isolation Voltage, Output to Chassis

Any output can be ﬂoated up to 240 V (DC + peak AC with AC limited to a maximum 3 V maximum of 60 Hz) relative to the Earth Ground terminal. Note that remote sense terminals should remain within 1 V of their respective outputs to avoid possible damage.

Isolation Voltage, Output to Output Any output can be ﬂoated up to 240 V (DC + pk AC with AC limited to a maximum of 3 V

and a maximum of 60 Hz) relative to any other output terminal. Remote sense terminals should remain within 1 V of their respective outputs to avoid possible damage.

Table 8: Terminal strip

Item Description

The rear panel has a customer accessible terminal strip. This strip is comprised of a board-mounted section and a technician-removeable section. The technician-removeable section offers the customer a safe set of screw terminals to connect

us instrument functions detailed below.

to vario

pk-pk

and

pk-pk

Table 9: Interfaces and output ports

Parameter (instrument model) Description

USB device, nominal

(All models)

GPIB interface

(G models only)

Command processing time, typical

(All models)

USB 2.0 Full Speed device. 12 Mb/sec maximum.

IEEE-488.2 compliant

About 400 ms per command.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 9

Speciﬁcations

Table 10: Mecha

Parameter

Weight, instrument, nominal

Dimensions, nominal

Cooling method, nominal

Required cooling clearance

Construction materials, nominal

nical characteristics

9kg (19.8 lbs)

Model

2230

Fan

Rear of instrument must be separated by at least 5 cm (2 in) from any airﬂow restrictions to assure adequate cooling.

Bottom of instrument must have 1 cm (0.4 in) from any airﬂow restrictions. The protective boot maintains the proper bottom clearance.

For rackm instructions.

Chassis – Aluminum Front Panel Plastics – PC/ABS blend

ount conﬁguration, follow the clearance requirements provided with the rackmount installation

Table 11: Environment performance

Parameter All models

Temperature

Humidity

Altitude

Operating: +0 °C to +40 °C

Nonoperating: -20 °C to 70 °C

Operating:

5% to 95% relative humidity (% RH) at up to 40 °C, noncondensing

Nonoperating:

5% to 95% RH (relative humidity) at up to +40 °C,

5% to 60% RH above +40 °C up to +70 C, noncondensing

Operating: 100% capability up to 2,000 meters.

Nonoperating: Up to 4,000 meters

Dimensions (Width * Height * Depth

214 mm * 88 mm * 355 mm (8.45” * 3.47” * 13.9”)

Table 12: Keypad special operations

aracteristic

Display the heat sink temperature Enter + Esc + 1

Reset the unit to the factory default

ettings

scription

Enter+Esc+2

10 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Speciﬁcations

Tabl e 13: Safet

y characteristics

Item Description

Safety Certiﬁ

cations

U.S. National

UL61010-1–2004 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use

Canadian Certiﬁcation

CAN/CSA C22 Measurement, Control, and Laboratory Use

European Union Compliance

Low Voltage Directive 2006/95/EC

EN61010-1 and Laboratory Use

Additional Compliance

IEC61010-1 2001 Safety Requirements for Electrical Equipment for Measurement, Control,

atory U se

ut can be ﬂoated up to 240 V (DC + peak AC with AC limited to a maximum 3V

Channel Voltage

to Channel Isolation

and Labor

Any outp maximum of 60 Hz) relative to any other channel terminal. Remote sense terminals should remain within 1 V of their respective outputs to avoid possible damage.

Channel to Ground Isolation

Voltag

Any output can be ﬂoated up to 240 V (DC + peak AC with AC limited to a maximum 3V

m of 60 H z) relative to the Earth Ground terminal. Remote sense terminals should

maximu remain within 1 V of their respective outputs to avoid possible damage.

ly Recognized Testing Laboratory (NRTL) Listing

.2 No. 61010-1-2004 Safety Requirements for E lectrical Equipment for

2001 Safety Requirements for Electrical Equipment for Measurement, Control,

pk-pk

and

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 11

Speciﬁcations

Table 14: Elect

romagnetic Compatibility (EMC) — Measurement, laboratory, and control product family

Item Description

Regional Cert

iﬁcations,

Classiﬁcations, and Standards List

European Uni

EC Council EMC Directive 2004/108/EC

Demonstrated using:

EN 61326-1:

Emissions

CISPR 11, Class A

Immunity

IEC 61000-4-2

IEC 61000-4-3

IEC 61000-

IEC 61000-4-5

IEC 61000-4-6

IEC 61000

IEC 61000-4-11

EN 61000-3-2

EN 61000

Emissions that exceed the levels by this standard may occur when this equipment is

-3–3

connected to a test object.

Australia

EMC Fra

igh quality shielded cables to maintain compliance

.Useh

mework, demonstrated per Emission Standard CISPR11 in accordance w ith EN

61326-1

2006 Electrical Equipment for Measurement, Control, and Laboratory

4-4

-4-8

1,2

ity

Immun

Immunity, Electrostatic Discharge

, Enclosure Port

(ESD)

Immunity, Conducted Radio Frequency

000-4-2

IEC 61

EN 61326-1, Performance Criterion “B”

IEC 61000-4-6

EN 61326-1, Performance Criterion “A”

12 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

This section contains performance veriﬁcation procedures for the speciﬁcations marked with the veriﬁcation

These procedures cover all models of theSeries2200ProgrammableDCPower Supplies. I

Print the test record on the following pages, and use it to record the performance test resul

NOTE. Each individual performance test must be done for each channel. This

means two times for the 2220-30-1, 2220G-30-1, 2220J-30-1, and 2220GJ-30-1. It means three times for the 2230-30-1, 2230G-30-1, 2230J-30-1, and 2230GJ-30-1.

NOTE. Completion of the performance veriﬁcation procedure does not update the

stored time and date of the latest successful adjustment. The date and time are updated only when the factory adjustment procedures are successfully completed.

procedures. (See Table 27 on page 24.)

gnore checks that do not apply to the speciﬁc model you are testing.

ts for your power supply.

symbol. Additional test equipment is required to complete the

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 13

Performance Veriﬁcation

The performanc instrument. They do not adjust your instrument. If your instrument fails any of the performance veriﬁcation tests, you should contact Keithley service.

WARNING. Observe all safety precautions listed in this manual before using

this product and any associated instrumentation. Although some instruments and accessories are used with nonhazardous voltages, there are situations where hazar qualiﬁed personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Before using the product, carefully read and follow all installation, operation, and maintenance information. Refer to this manual for complete product speciﬁcations. Before performing any maintenance, disconnect the line cord and all test cables. Operators of this instrum body must make sure 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 can operate at or above 1000 volts, no conductive part of the circuit may be exposed.

WARNING. Do not loosen any screw on this product. There are no user

serviceable components inside.

ent must be protected from electric shock at all times. The responsible

everiﬁcation procedures verify the performance of your

dous conditions may be present. This product is intended for use by

CAUTION. Use properly rated load wires. All load wires must be heavy enough not

to overheat when carrying the maximum short-circuit output current of the power supply. If there is more than one load, then any pair of load wires must be capable

safely carrying the full-rated short-circuit output current of the power supply.

14 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Test Record

Model Serial Procedure performed by Date

Test Passed Failed

Self test

DC voltage accuracy with remote sense

DC voltage accuracy without remote sense

DC voltage readback accuracy

DC voltage line regulation

DC voltage load regulation

DC c urrent accuracy

DC current readback accuracy

DC current line regulation

DC current load regulation

Voltage noise at 7 MHz

Voltage noise at 20 MHz

Current noise at 20 MHz

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 15

Performance Veriﬁcation

Table 15: DC vol

Instrument te voltage DUT voltage Test current Min Measured Max

Channel 1

25%

50%

75%

100%

Channel 2

25%

50%

75%

100%

Channel 3

25%

50%

75%

100%

tage accuracy with remote sense

0.00000 V 0.5 A -0.01000 V

7.5000 V 0.5 A 7.48775 V

15.00000 V 0.5 A 14.98550 V

0.00000 V 2.5 A -0.01000 V

30.0000 V 0.5 A 29.98100 V

00 V

000 V

0000 V

50000 V

00000 V

0.5 A -0.0100

0.5 A 14.985

0.5 A 22.483

0.5 A 29.98

2.5 A -0.0

0.5

2.5

0.00000

7.5000 V 0.5 A 7.48775

15.000

22.500

30.00

0.00

1.5

3.0

1000 V

98550 V

14.

8910 V

2.9

48865 V

98820 V

50 V

25 V

100 V

__________

_________

_______

______

_____

____

___

____

_____

______

_______

________

_________

0.01000 V

7.51225 V

15.01450 V _

0.01000 V

30.01900 V

0.01000

7.51225

15.014

22.516

30.01

0.01

15.

3.0

51135 V

01180 V

50 V

75 V

900 V

000 V

01450 V

1090 V

16 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Tabl e 16: DC vol

Instrument te voltage DUT voltage Test current Min Measured Max

Channel 1

25%

50%

75%

100%

Channel 2

25%

50%

75%

100%

Channel 3

25%

50%

75%

100%

tage accuracy without remote sense

0.00000 V 0.5 A -0.01000 V

7.50000 V 0.5 A 7.48625 V

15.00000 V 0.5 A 14.98250 V

22.50000 V 0.5 A 22.47875 V

30.00000 V 0.5 A 29.975000

00 V

000 V

0000 V

50000 V

00000 V

0.5 A -0.0100

0.5 A 7.48625

0.5 A 14.982

0.5 A 22.478

0.5 A 29.97

2.5 A -0.0

2.5

0.00000

7.50000

15.000

22.500

30.00

0.00

1.5

3.0

1000 V

8925 V

1.4

8850 V

2.9

48775 V

98700 V

50 V

75 V

500 V

__________

_________

_______

______

_____

____

___

________

_________

___

____

_____

______

_______

0.01000 V

7.51375 V

15.01750 V

22.52125 V

30.02500 V

0.01000

7.51375

15.017

22.521

30.02

0.01

1.5

3.0

51225 V

01300 V

50 V

25 V

500 V

000 V

1075 V

1150 V

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 17

Performance Veriﬁcation

Table 17: DC vol

Instrument test voltage DUT voltage Test current

Channel 1

25%

50%

75%

100%

Channel 2

25%

50%

75%

100%

Channel 3

25%

50%

75%

100%

tage readback accuracy

0.00000 V 0.5 A

7.50000 V 0.5 A

15.00000 V 0.5 A

22.50000 V 0.5 A

30.00000 V 0.5 A

00 V

000 V

0000 V

50000 V

00000 V

0.5 A

2.5 A

2.5

0.00000

7.50000

15.000

22.500

30.00

0.00

1.5

3.0

Measured voltage

________ ________ ________

_______

______

_____

____

___

____

_____

______

_______

Vol tage readout

_______

______

___

_____

___

_____

____

_____

___

_____

___

______

_______

Absolute difference

_______

______

___

_____

___

_____

____

_____

___

_____

___

______

_______

Maximum difference

0.01000 V

0.01225 V

0.01450 V

0.01675 V

0.01900 V

0.01000

0.01225

0.0145

0.0167

0.019

0.01

0.0

00 V

000 V

10375 V

10750 V

011125 V

01150 V

18 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Table 18: DC vol

Instrument Min line Max line Nom line Nom – Min Max – Nom Largest Max value

Channel 1

Channel 2

Channel 3

tage line regulation

_________ _________ _________ _________ _________ _________

0.0120000 V

0.0072000 V

Table 19: DC voltage load regulation

Instrument Min load Ref load Max load Ref – Min

Channel 1

Channel 2

Channel 3

_______ _______ _______ ________ ________ ________ _______

Max – Ref

(Max–Ref) / 0.98 Largest

Max value

0.0120000 V

0.0072000 V

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 19

Performance Veriﬁcation

Table 20: DC cur

Instrument test current Test voltage DUT current Min Measured current Max

Channel 1

25%

50%

75%

100%

Channel 2

25%

50%

75%

100%

Channel 3

25%

50%

100%

rent accuracy

15 V 0.00000000 A -0.00500000 A

15 V 0.3750 A 0.36963 A

15 V 0.75000 A 0.74425 A

15 V 1.1250 A 1.11888 A

15 V 1.5000 A 1.49350 A

15 V 0.00000000 A -0.00500000 A

15 V 0.3750 A 0.36963 A

15 V 0.7500

15 V 1.1250 A 1.11888 A

15 V 1.5000 A 1.49350 A

3 V 0.00000000 A -0.00500000 A

3 V 1.25000000 A 1.24375000 A

3V 2.

3 V 3.75000000 A 3.74125000 A

3 V 5.00000 A 4.99000 A

50000000 A

0.7442

49250000 A

__________

____

______

__________

________

__________

0.00500000 A

0.38037 A

0.75575 A

1.13113 A

1.50650 A

0.00500000 A

0.38037 A

0.7557

1.13113 A

1.50650 A

0.00500000 A

1.25625000 A

50750000 A

3.75875000 A

5.01000 A

20 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Tabl e 21: D C cur

Instrument te current Test current

Channel 1

25%

50%

75%

100%

Channel 2

25%

50%

75%

100%

Channel 3

25%

50%

75%

100%

rent readback accuracy

0.375 A

0.75 A

1.125 A

1.5 A

0.375 A

0.75 A

1.125 A

1.5 A

1.2

2.5

75 A

Measured current Current readout

________ ________ ________

_______

______

___

_____

___

_____

____

_____

___

_____

___

______

_______

______

_____

____

___

____

_____

______

_______

Absolute difference

_______

______

___

_____

___

_____

____

_____

___

_____

___

______

_______

Maximum difference

0.00500000 A

0.0053750 A

0.00575000

0.0061250

0.0065000

0.00500

0.00537

0.0057

0.0061

0.006

0.00

0625000 A

0.0

0550000 A

0.0

00875000 A

01000000 A

000 A

50 A

5000 A

2500 A

50000 A

500000 A

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 21

Performance Veriﬁcation

Table 22: DC cur

rent line regulation

Test

Instrument

Channel 1

Channel 2

Channel 3

voltage Min line Max line Nom line

15 V

______ ______ ______ ______ ______ ______

Table 23: DC current load regulation

Instrument

Channel 1

Channel 2

Channel 3

Meas @ min volts

_________ _________ _________ _________ _________ _________

Meas @ ref volts

Table 24: Voltage noise at 7 MHz

Voltage test

ment

Instru

el 1

Chann

el 2

Chann

nel 3

Chan

Load R must be rated at 100 W minimum.

load R

40 Ω 40 Ω

2.5 Ω

Nom – Min

Max – Nom Largest Max value

0.004500A

Meas @ maxvolts Ref-Min Max-Ref Largest

Maximum difference

0.003120 A

0.003400 A

rms

________

Measured

Maximum rms

1mV

Measured pk - pk

________

Maximum pk - pk

3mV

Table 25: Voltage noise at 20 MHz

Voltage test

trument

Ins

nnel 1

Cha

annel 2

annel 3

Load R must be rated at 100 W minimum.

loa

40 Ω

5 Ω

Ω

Table 26: Current noise at 20 MHz

urrent test

Instrument

Channel 1 1 Ω Channel 2 1 Ω Channel 3 1 Ω

Load R must be rated at 100 W minimum.

load R

Measured rms

________

Maximum rms

3mV

easured

M rms

________

Measured

pk -

________

aximum

M rms

3mVA

3mA

Maximum

pk -

20 mV

22 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Performance V

eriﬁcation Procedures

Performance Veriﬁcation

Conditions

The following conditions must be met before performing these procedures:

1. The Device Under Test (DUT) and all test equipment must have been operating continuously for 20 minutes in an environment that meets the operating range speciﬁcations for temperature and humidity.

Test setup changes affecting the remote sense require an additional 20 minute warm-up period.

2. The procedures are intended to be used in sequence. If it is necessary to partially test the DUT using an individual test, a 20 minute warm-up period is required

3. You must connect the DUT and the test equipment to the same AC power circuit you are unsure of the AC power circuit distribution. Connecting the DUT and test instruments into separate AC power circuits can result in offset voltages between the equipment, which can invalidate this performance veriﬁcation procedure.

4. The AC Power Source for the DUT must match the Voltage Selector switch setting located on the bottom of the DUT.

for the individual test.

. Connect the DUT and test instruments into a common power strip if

Equipment Required

DUT voltage selector switch AC source voltage

110 115 V 100 V

220 230

ese procedures use external equipment to directly check warranted

Th characteristics. The following table lists the required equipment.

AC source voltage for Japan products

200

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 23

Performance Veriﬁcation

Table 27: Test e

Item Minimum requi

1. Connectors Connectors fo

2. AC power source Variable AC output from 90 to 265 VA C with at least

3. Electronic load

4. DC voltmeter

5. High current hook up wire

urrent connections are

(High c indicated with bold lines in the setup illustrations)

quipment

rements

r hook up wire assemblies and test

resistors, item numbers 5, 6, 9, 10, and 11.

(Qty. 6) #10 fork lugs similar to Tyco part number

52951

(Qty, 14) Stackable, gold plated, banana plugs/jacks similar to P current connections, and connection to the load resistors (items 10 and 11) used for noise testing.

(Qty. 4) Sheathed Banana Jacks similar to Pomona model 4834 (item 9).

750 VA capacity

Variable DC Load capable of 6 ADC and 40 VDC B&K Precision 8510

Voltage measurement at 12 mV through 40 V to better than 100 ppm accuracy with the ability to multiply the result b

18 AWG (

To perform all tests, the following wire assemblies need to be created:

#10 fork lug to #10 fork lug, Qty 2, (included in Guild

omona model 4897-0. Used for lower

to put connectors on the Resistors

y a scalar.

minimum) hookup wire assemblies.

line 92301 if used)

Example

Kikusui PCR2000M

Keithley 2000 DMM

able Banana to #10 fork lug, Qty 2

Stack

able Banana to Bare Wire Qty 2.

Stack

Wire lengths are not critical.

6. Low c

(Low current connections are indicated with light lines in the setu

7. 50 mΩ precisionshunt resistor 0.050 Ω ±100 ppm at 25 W ±4 ppm/°C temperature

8. Current sense resistor cabling Kelvin 4 terminal measuring cables for shunt resistor to

urrent hook u p wire

p illustrations)

22 AWG (minimum) hookup wires

To perform all tests, the following wire assemblies need

created:

to be

ana plug to Banana plug, Qty 2

Ban

e Wire to stackable Banana, Qty 2

Bar

e Wire to Banana, Qty 2

Bar

Wire lengths are not critical.

coefﬁcient

oltmeter

Guildline 9230A-50

Guildline 92301 cable set

24 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Table 27: Test equipment (cont.)

Item Minimum requirements Example

9. 50 mΩ resistor for Remote

Sense testing

(2 required) Oneofthese50mΩ resistors

may be substituted with item 7.

10. Load resistor for Voltage Noise testing

Channel 1 12 Ω Vishay/Dale RH05012R00FE02 Channel 2 12 Ω Vishay/Dale RH05012R00FE02

Channel 3 ( 2230-30-1 and 2230J-30-1 only)

11. Load Resistor for Current Noise testing

12. Oscilloscope 20 MHz bandwidth limited oscilloscope at 1 mV/division Tektronix DPO3012

13. Oscilloscope probe Low capacitance 1 MΩ/10 MΩ 1X/10X 6 MHz/200 MHz

14. Oscilloscope probe Low capacitance 10 MΩ 500 MHz probe

15. Coaxial cable 50 Ω BNC, male-to-male

16. BNC adapter BNC female to banana breakout

0.050 Ω,5W.

To perform the tests as illustrated, both leads of each resistor require a Banana Jack connector (e.g. Pomona model 4834).

Loading resistors for high current in voltage mode, and high voltage in current mode

All resistors should be rated for at least 50 W. Ohms tolerance within 5% . Resistor composition is not critical.

To perform the tests as illustrated, both leads of the load resistor require a Banana plug/jack (or equivalent) to connect to the power supply.

2.5 Ω Vishay/Dale RH0502R500FE02

1 Ω, 100 W, 5%

To perform the tests as illustrated, both leads of the load resistor require a Banana plug/jack (or equivalent) to connect to the power supply.

probe

OHMITE 15FR050E

Vishay/Dale HL10006Z1R000JJ

Tektronix P2220, 1X probe

Tektronix P6139A, 10X probe

Tektronix part number: 012-0482-00

Pomona Electronics 3073

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 25

Performance Veriﬁcation

Self Test

This procedure its internal self tests. No test equipment or hookups are required.

1. Disconnect al

2. Power on the DUT. The front-panel display will light up brieﬂy while the

DUT perform up at once.

3. Review the d strokes lost on any annunciator.

4. If the EEPROM is damaged or the latest operation data in the EEPROM is missing, the display appears as follows:

uses internal routines to verify that the DUT functions and passes

l cables from the DUT outputs.

s its power-on self test. All the display annunciators will light

isplay with all the annunciators. Visually check if there are any

5. If the calibration data in the EEPROM is missing, the display appears as follows:

6. If the latest operating state of the power supply in the EEPROM is missing, the display appears as follows:

7. If there is no response when you power on the DUT, verify that there is AC power to the power supply, verify the power-line voltage settings, and verify

hat the correct power-line fuse is installed. If you need more help, contact

t Keithley.

8. Power off the DUT.

26 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Check DC Volta

Accuracy with Remote

Sense

Equipment required

(Item 2) AC Power Source (Item 5) High current hook up wire (bold line

connections)

(Item 3) Electronic Load (Item 6) Low current hook up wire (ﬁne line

)

50 Ω,5WResistor(Qty2)

(Item 4) DC V

oltmeter

connections

(Item 9) 0.0

For each of the channels sequentially.

1. Power off the DUT.

2. Remove the shorting clip from the Remote Sense connector on the rear panel

for the channel being tested. Be sure to retain the clip or clips for the channels not bein

gtested.

Figure 1: Conﬁguring the shorting clips on a Remote Sense connector to test channel 1 on a 2230-30-1

Figure 2: Conﬁguring the shorting clips on a Remote Sense connector to test channel 2 on a 2230-30-1

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 27

Performance Veriﬁcation

Figure 3: Conﬁguring the shorting clips on a Remote Sense connector to test channel 3 on a 2230-30-1

3. Set up the equipment a s shown. (See Figure 4.)

NOTE. To assure accurate measurements, it is important that a signiﬁcant amount

of current does not ﬂow through the sense leads. For this reason, we recommend that the wiring of the remote sense and the voltmeter be away from the high

t connections between the electronic load and the DUT.

curren

A solution is a pair fork lugs with all three wires crimped in. Another alternative

rk lug between the DUT and the load, and separate connections (probably

is a fo also fork lugs) holding the wiring for one or both of the voltmeter and remote sense. A third alternative is to stack banana jacks at the voltmeter, with the remote sense toward the voltmeter, and the two high current connections on the outside.

28 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Figure 4: DC voltage accuracy with remote sense test setup. The channel 1 test setup is shown.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 29

Performance Veriﬁcation

4. Power on the DUT

NOTE. Ensure the warm-up criteria has been met as described in the Performance

Ver iﬁcation Conditions.

5. Set the voltmeter as follows:

a. Set to measu

b. Set to auto range.

c. Verify that the Math mx+b function is disabled (shift DCV), assuring that

volts are being read.

6. Set the electronic load as follows:

a. Set to Constant Current.

b. Set the to draw a constant current at the test current speciﬁed for the DUT

in the table for checking DC Voltage Accuracy With Remote Sense. (See Table 15 on page 16.)

7. Set the channel under test (CUT) to the full scale (FS) output current.

8. Set the CUT to 0% of the FS output voltage (0 V).

re DC volts.

9. Turn the DUT output on.

10. Ente

11. Inc

12. Repeat steps 10 and 11 until you complete testing at 100% of the FS.

13. Power off the DUT.

14. Disconnect the hook up wires from the Remote Sense connector and reinstall

15. Power on the DUT.

This completes the check for one channel. If needed, return to step 1 to run through the check for the next channel.

r the voltmeter reading into the table for checking DC voltage accuracy

with remote sense. (See Table 15 on page 16.)

rease the CUT output voltage by 25% of the FS output voltage.

the shorting clip on the channel you just tested.

30 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Check DC Volta

ge Setting

Accuracy Without Remote

Sense and Voltage

Readback Accu

racy

Equipment required

(Item 2) AC Power Source (Item 5) High current hook up wire (bold line

connections)

(Item 3) Electronic Load (Item 6) Low current hook up wire (ﬁne line

)

(Item 4) DC V

connections

oltmeter

For each channel sequentially.

1. Set up the equipment as shown. (See Figure 5.)

NOTE. Ens

ure the warm-up criteria has been met as described in the Performance

Ver iﬁcation Conditions.

NOTE. To

assure accurate measurements, the voltmeter must connect as close as possible to the front panel of the DUT. A solution is to use fork lugs between the electronic load and the DUT, and banana plugs between the DUT and voltmeter. An alternative solution is to use fork lugs for both connections at the DUT.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 31

Performance Veriﬁcation

Figure 5: Voltage accuracy, regulation, and protection test setup. The channel 1 test setup is shown.

2. Set the voltmeter as follows:

a. Set to measure DC volts.

b. Set to auto range.

c. Verify that the Math mx+b function is disabled (shift DCV), assuring that

volts are being read.

3. Set the electronic load as follows:

a. Set to Constant Current.

b. Set to draw a constant current at the test current speciﬁed for the channel

under test (CUT) in the table for checking DC Voltage Accuracy without Remote Sense. (See Table 16 on page 17.)

4. Set the CUT to the full scale (FS) output current.

5. Set the CUT to 0% of the FS output voltage (0 V).

6. Turn the DUT output on.

32 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

7. Enter the voltm

without remote sense. (See Table 16 on page 17.)

8. Enter the volt

accuracy. (See Table 17 on page 18.)

9. Enter the CU

accuracy. (See Table 17 on page 18.)

10. Calculate t

enter the absolute value into the difference column of the table. (See Table 17 on page 18.)

11. Increase the CUT output voltage by 25% of the FS output voltage.

12. Repeat st

This completes the check for one channel. If needed, return to step 1 to run through

the check for the next channel.

eter reading into the table for checking DC voltage accuracy

meter reading into the table for checking DC voltage readback

T Readback Voltage into the table for DC voltage readback

he difference of the two measurements taken in steps 8 and 9 and

eps 7 through 11 until you complete testing at 100% of FS.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 33

Performance Veriﬁcation

Check DC Voltage Line

Regulation

This check proc

edure uses the same test setup as the previous procedure. (See

Figure 5.)

For each channel sequentially.

1. Change the AC

Power Source output to the minimum voltage speciﬁed in the

following table.

NOTE. Ensure the warm-up criteria has been met as described in the Performance

Ver iﬁcation Conditions.

DUT voltage selector switch AC Power Source voltage Japan conﬁgured units

110 99 V 90

220 198 V 180

2. Set the voltmeter as follows:

a. Set to measure DC volts.

b. Set t

o auto range.

c. Verify that the Math mx+b function is disabled (shift DCV), assuring that

s are being read.

volt

3. Set the electronic load as follows:

a. Set to Constant Current.

b. Set to draw the speciﬁed test current.

Instrument Test current

Channel 1

Channel 2

Channel 3

0.5 A

2.5 A

4. Set the channel under test (CUT) to 100% of the full scale (FS) output current.

5. Set the CUT to 100% of the FS output voltage.

6. Turn the DUT output on.

34 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

7. Enter the voltm

Regulation under the min column for the CUT. (See Table 18 on page 19.)

eter reading into the table for checking DC Voltage Line

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 35

Performance Veriﬁcation

8. Change the AC Po

wer Source output to the maximum voltage speciﬁed in the

following table.

DUT voltage selector switch AC Power Source voltage Japan conﬁgured units

110 132 V 110 V

220 264 V 220 V

9. Enter the voltmeter reading into table for checking DC Voltage Line Regulation under the Max column for the CUT. (See Table 18 on page 19.)

10. Change the AC Power Source output to match the Voltage Selector switch setting of the DUT.

DUT voltage selector switch AC Power Source voltage Japan conﬁgured units

110 115 V 100 V

220 230 V 200 V

11. Enter the voltmeter reading into table for checking DC Voltage Line Regulation under the Nom column for the CUT. (See Table 18 on page 19.)

12. Calculate the two values: Nom – Min and Max – Nom. Enter the values into the appropriate columns. (See Table 18 on page 19.)

13. Enter the largest of the two values calculated in step 12 into the Largest column. (See Table 18 on page 19.)

This completes the check for one channel. If needed, return to step 1 to run through the check for the next channel.

36 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Check DC Voltage Load

Regulation

This check proc

edure uses the same test setup as the previous procedure. (See

Figure 5.)

For each channel sequentially.

NOTE. Ensure the warm-up criteria has been met as described in the Performance

Ver iﬁcation Conditions.

1. Set the voltmeter as follows:

a. Set to measure DC volts.

b. Set to auto range.

c. Verify th

at the Math mx+b function is disabled (shift DCV), assuring that

volts are being read.

2. Set the e

lectronic load as follows:

a. SettoConstantCurrent.

b. Set to draw 0 Amps.

3. Set the channel under test (CUT) to 100% of the full scale (FS) output current.

4. Set the CUT to 100% of the FS output voltage.

5. Turn the DUT output on.

6. Ente

r the voltmeter reading into the table for checking DC Voltage Load Regulation under the minimum load column for the CUT. (See Table 19 on page 19.)

7. Increase the electronic load to the reference load test current value.

Instrument Reference load test current

Channel 1

Channel 2

Channel 3

0.75 A

2.5 A

8. Enter the voltmeter reading into the table for checking DC Voltage Load Regulation under the reference load column for the CUT. (See Table 19 on page 19.)

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 37

Performance Veriﬁcation

9. Increase the el

Channel Maximum load test current

Channel 1

Channel 2

Channel 3

ectronic load to the maximum load test current value.

1.47 A

4.9 A

10. Enter the voltmeter reading into the table for checking DC Voltage Load Regulatio

n under the maximum load column for the channel. (See Table 19

on page 19.)

11. Calculat

e the three values: Ref – Min, Max – Ref, and (Max – Ref)/0.98.

Enter the values into the appropriate columns. (See Table 19 on page 19.)

12. Enter th

e largest of the three values calculated in step 11 into the Largest

column.

This co

mpletes the check for one channel. If needed, return to step 1 to run

through the check for the next channel.

38 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Check DC Cu rre

nt and

DC Current Readback

Accuracy

Equipment required

(Item 2) AC Power Source (Item 5) High current hook up wire (bold line

connections)

(Item 3) Electronic Load (Item 7) High Accuracy 0.05 Ω Resistor

(Item 4) DC Voltmeter (Item 8) Current Shunt Resistor Cabling

For each channel sequentially.

1. Set up the equipment as shown. (See Figure 6.)

NOTE. Ensure the warm-up criteria has been met as described in the Performance

Ver iﬁcation Conditions.

Figure 6: DC current accuracy and regulation test setup. The channel 1 test setup is shown.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 39

Performance Veriﬁcation

2. Set the voltmet

a. Set to measure DC volts.

b. Set to auto range.

c. Set to show amps (instead of volts) by multiplying the voltmeter result

by 20.

Press Shift DC V (mX+B).

Use the arrow key to move the cursor to the far right until it is positioned on the ^.

Press the up range button once so that M=10.00000.

Press the arrow key to move the cursor to the 1’s digit and then press the up range button once so that M=20.00000.

Press the Enter button and check that the display shows B=0.

Press the Enter button and check that the display shows UNITS.

Use the arrow keys to modify the display to show AMP.

Adjust each letter individually.

3. Set the electronic load as follows:

er as follows:

a. Set to Constant Voltage.

b. Set to the speciﬁed voltage for your channel under test (CUT). (See

Table 20 on page 20.)

4. Set the channel under test (CUT) to 0% of the full scale (FS) output current.

5. Set the CUT to 100% of the FS output voltage.

6. Turn the DUT output on.

7. Enter the voltmeter reading into the table for checking DC current accuracy.

(SeeTable20onpage20.)

8. Enter the voltmeter reading into the table for checking DC current readback accuracy. (See Table 21 on page 21.)

9. Enter the CUT readback current readout into the table for checking current readback accuracy under the current readout column. (See Table 21 on page 21.)

10. Calculate the difference of the two measurements taken in steps 8 and 9. Enter the absolute value of the calculated value into the difference column of the table. (See Table 21 on page 21.)

11. Increase the CUT output current by 25% of the FS output current.

12. Repeat steps 7 through 11 until you complete testing at 100% of the FS output

current.

40 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

This completes through the check for the next channel.

the check for one channel. If needed, return to step 1 to run

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 41

Performance Veriﬁcation

Check DC Current Line

Regulation

This check proc

edure uses the same test setup as the previous procedure.(See

Figure 6.)

For each channel sequentially.

1. Change the AC Power Source output to the voltage speciﬁed in the following table.

DUT voltage selector switch AC power source voltage Japan conﬁgured units

110 99 V 90 V

220 198 V 180 V

NOTE. Ensure the warm-up criteria has been met as described in the Performance

Ver iﬁcation Conditions.

2. Set the voltmeter as follows:

a. Set to measure DC volts.

b. Set to auto range.

c. Set to show amps (instead of volts) by multiplying the voltmeter result

y20.

Press Shift DC V (mX+B).

Use the arrow key to move the cursor to the far right until it is positioned on the ^.

Press the up range button once so that M=10.00000.

Press the arrow key to move the cursor to the 1’s digit and then press the up range button once so that M=20.00000.

Press the Enter button and check that the display shows B=0.

Press the Enter button and check that the display shows UNITS.

Use the arrow keys to modify the display to show AMP.

Adjust each letter individually.

3. Set the electronic load as follows:

a. Set to Constant Voltage.

b. Set to the speciﬁed voltage for your channel under test (CUT). (See

Table 22 on page 22.)

4. Set the channel under test (CUT) to 100% of the full scale (FS) output voltage.

5. Set the CUT to 100% of the full scale (FS) output current.

42 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

6. Turn the DUT out

put on.

7. Enter the voltmeter reading into the table for checking current line regulation under the mini

mum line for the CUT. (See Table 22 on page 22.)

8. Change the AC Power Source output to the voltage speciﬁed in the following table.

DUT voltage selector switch AC power source voltage Japan conﬁgured units

110 132 V 110

220 264 V 220

9. Enter the voltmeter reading into the Max line for the CUT. (See Table 22 on page 22.)

10. Change the AC Power Source output to the voltage speciﬁed in the following table.

DUT voltage selector switch AC power

110 115 V 100 V

220 230 V 200 V

source voltage

Japan co

nﬁgured units

11. Enter the voltmeter reading into the Nom line for the CUT. (See Table 22 on page 22.)

12. Calculate the two values: Nom – Min and Max – Nom. Enter the values into the appropriate columns. (See Table 22 on page 22.)

13. Select the largest of the two calculations from step 12 and enter the value into the Largest column. (See Table 22 on page 22.)

14. Turn the DUT output off.

This completes the check for one channel. If needed, return to step 1 to run through the check for the next channel.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 43

Performance Veriﬁcation

Check DC Current Load

Regulation

This check proc

edure uses the same test setup as the previous procedure. (See

Figure 6.)

NOTE. Ensure the warm-up criteria has been met as described in the Performance

Ver iﬁcation Conditions.

For each channel sequentially.

1. Set the voltmeter as follows:

a. Set to measure DC volts.

b. Set to auto range.

c. Set to show amps (instead of v

olts) by multiplying the voltmeter result

by 20.

Press Shift DC V (mX+B).

Use the arrow key to move the cursor to the far right until it is positioned on the ^.

Press the up range button once so that M=10.0

0000.

Press the arrow key to move the cursor to the 1’s digit and then press the up range button once so that M=20.00000.

Press the Enter button and check that the display shows B=0.

Press the Enter button and check that the display shows UNITS.

Use the arrow keys to modify the display to show AMP.

Adjust each letter individually.

2. Set the electronic load as follows:

a. Set to Constant Voltage.

b. Set to output the minimum test voltage level.

Channel Minimum test voltage

Channel 1

Channel 2

Channel 3

3.0 V

0.6 V

3. Set the channel under test (CUT) to 100% of the FS output current for your product.

4. Set the CUT to 100% of the FS output voltage for your product.

5. Turn the DUT output on.

44 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

6. Enter the voltm at the minimum voltage for your product. (See Table 23 on page 22.)

eter reading into the table for checking current load regulation

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 45

Performance Veriﬁcation

7. Increase the el

Channel under test Reference tes

Channel 1

Channel 2

Channel 3

ectronic load to the Reference test voltage level.

t voltage

15.0 V

3.0 V

8. Enter the voltmeter reading into the table for checking current load regulation at the reference test voltage the CUT. (See Table 23 on page 22.)

9. Increase the electronic load to the Maximum test voltage level.

Channel under test Maximum test voltage

Channel 1

Channel 2

Channel 3

29.4 V

5.88 V

10. Enter the voltmeter reading into the table for checking current load regulation at the maximum voltage for the CUT. (See Table 23 on page 22.)

11. Calculate the two values: REF – Min and Max – REF. Enter the values into the appropriate columns. (See Table 23 on page 22.)

12. Select the larger of the two calculated values from step 11 and enter the value into the Largest column. (See Table 23 on page 22.)

13. Power off the DUT and test equipment.

This completes the check for one channel. If needed, return to step 1 to run through the check for the next channel.

46 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Check Voltage

Noise

(7 MHz)

Equipment required

(Item 5) High current hook up wire (bold line connections)

(Item 10) Load Resistor (Item 13) Oscilloscope 1X probe

(Item 12) Oscilloscope

For each channel sequentially.

1. Plug the DUT into your local line power from the mains.

2. Plug the test oscilloscope into the same mains outlet as the DUT.

NOTE. Some AC Power Sources create large amounts of high frequency noise on

the power line that the instrument may not fully reject. N oise directly on the mains is typically better controlled.

Use the same mains outlet for both the DUT and test oscilloscope to avoid ground loops which may cause noise.

3. Power on the DUT and test oscilloscope.

NOTE. Ensure the warm-up criteria has been met as described in the Performance

cation Conditions.

Ver iﬁ

4. Set up the equipment as shown. (See Figure 7.)

Use the appropriate load resistor depending on the channel being tested. (See Table 24 on page 22.)

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 47

Performance Veriﬁcation

Figure 7:

7 MHz test setup. The channel 1 test setup is shown.

48 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

5. Set the oscillo

scope as follows:

a. 1 mV/division

b. 1MΩ input resistance

c. 20 MHz bandwidth (BW) limit

d. AC Coupled

e. Line trigger

f. 2ms/div

g. Set to measure V

p-p

and V

RMS

6. Set the oscilloscope probe to 1X mode.

7. Set the channel under test (CUT) to the 100% FS output voltage.

8. Set the CUT to the 100% FS output current.

9. Turn the DUT output on.

WAR N I NG. Do not touch the load resistor. The load resistor may become hot

enough to cause burns.

10. Enter the oscilloscope measurements into the table for checking Noise at 7 MHz. (See Table 24 on page 22.)

This completes the check for one channel. If needed, return to step 1 to run through the check for the next channel.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 49

Performance Veriﬁcation

Check Voltage

(20 MHz)

Noise

Equipment required

(Item 5) High current hook up wire (bold line connections)

(Item 10) Load Resistor (Item 16) BNC F-to-Banana

(Item 12) Oscilloscope

(Item 15) Coaxial cable (BNC M-M)

For each channel sequentially.

1. Plug the DUT into your local line power from the mains.

2. Plug the test oscilloscope into the same mains outlet as the DUT.

NOTE. Some AC Power Sources create large amounts of high frequency noise on

the power line that the instrument may not fully reject. Noise directly on the mains is typically better controlled.

Use the same mains outlet for both the DUT and test oscilloscope to avoid ground loops which may cause noise.

3. Power on the DUT and test oscilloscope.

NOTE. Ensure the warm-up criteria has been met as described in the Performance

ﬁcation Conditions.

Ver i

4. Set up the equipment a s shown. (See Figure 8.)

Use the appropriate load resistor depending on the channel under test. (See Table 25 on page 22.)

50 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Figure 8: 20 MHz voltage noise test setup. The channel 1 test setup is shown.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 51

Performance Veriﬁcation

5. Set the oscillo

scope as follows:

a. 1 mV/division

b. 1MΩ input resistance

c. 20 MHz bandwidth (BW) limit

d. AC Coupled

e. Line trigger

f. 2ms/div

g. Set to measure V

p-p

and V

RMS

6. Set the channel under test (CUT) to the 100% FS output voltage.

7. Set the channel under test (CUT) to the 100% FS output current.

8. Turn the DUT output on.

WARNING. Do not touch the load resistor. The load resistor may become hot

enough to cause burns.

9. Enter the oscilloscope measurements into the table for checking voltage noise at 20 MHz. (See Table 25 on page 22.)

This completes the check for one channel. If needed, return to step 1 to run through the check for the next channel.

52 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

Performance Veriﬁcation

Check Current

Noise

Equipment required

(Item 5) High current hook up wire (bold line connections)

(Item 11) 1 Ω Load Resistor (Item 14) Oscilloscope 10X probe

(Item 12) Oscilloscope

For each channel sequentially.

1. Plug the DUT into your local line power from the mains.

2. Plug the test oscilloscope into the same mains outlet as the DUT.

NOTE. Some AC Power Sources create large amounts of high frequency noise on

the power line that the instrument may not fully reject. N oise directly on the mains is typically better controlled.

Use the same mains outlet for both the DUT and test oscilloscope to avoid ground loops which may cause noise.

3. Power on the DUT and test oscilloscope.

NOTE. Ensure the warm-up criteria has been met as described in the Performance

cation Conditions.

Ver iﬁ

4. Set up the equipment as shown. (See Figure 9.)

Figure 9: 20 MHz current noise test setup. The c hannel 1 test setup is shown.

Series 2200 Multichannel Programmable DC Power Supplies Technical Reference 53

Performance Veriﬁcation

5. Set the oscillo

scope as follows:

a. 1 mV/division

b. 1MΩ input resistance

c. 20 MHz bandwidth (BW) limit

d. AC Coupled

e. Line trigger

f. 2ms/div

g. Set to measure V

p-p

and V

RMS

6. Set the channel under test (CUT) to the 100% FS output voltage.

7. Set the CUT to the 100% FS output current.

8. Turn the DUT output on.

WARNING. Do not touch the load resistor. The load resistor may become hot

enough to cause burns.

9. Enter the oscilloscope measurements into the table for checking current noise. (SeeTable25onpage22.)

10. Power off the DUT and test equipment.

This completes the check for one channel. If needed, return to step 1 to run through the check for the next channel.

54 Series 2200 Multichannel Programmable DC Power Supplies Technical Reference

All Keithley trademarks and trade names are the property of Keithley Instruments, Inc.

All other trademarks and trade names are the property of their respective companies.

Specifications are subject to change without notice.

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