Keithley 2635B, 2634B, 2636B, 2601B, 2602B Quick Start Manual

Safety

Introduction

Models 2634B, 2635B, and 2636B

System SourceMeter Instruments

Quick Start Guide

Safety

Introduction

Safety precautions

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 qualied 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 specications.

If the product is used in a manner not specied, 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 specications 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 specications, 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 xtures. 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.

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Introduction

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 re, 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. The detachable mains
power cord provided with the instrument may only be replaced with a similarly rated
power cord. 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 ofce for information.

Unless otherwise noted in product-specic literature, Keithley instruments are

designed to operate indoors only, in the following environment: Altitude at or below

2,000 m (6,562 ft); temperature 0 °C to 50 °C (32 °F to 122 °F) ; and pollution
degree 1 or 2.

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 March 2016.

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.

When fuses are used in a product, replace with the same type and rating for continued

protection against re hazard.

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 specied 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. Maximum
signal levels are dened in the specications and operating information and shown on the
instrument panels, test xture panels, and switching cards.

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 xture, 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 marked on the instrument.

The symbol on an instrument means caution, risk of electric shock. Use standard

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 symbol indicates a connection terminal to the equipment frame.

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.

Introduction

Safety

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FAQs

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*See full specications for other pulse regions.

Carefully consider and congure the appropriate

output-off state, source levels, and compliance

levels before connecting the instrument to
a device that can deliver energy. Failure to
consider the output-off state, source levels, and
compliance levels may result in damage to the
instrument or to the device under test.

Power and environmental specications

For indoor use only.

Power Supply 100 VAC to 240 VAC, 50 Hz to 60 Hz

(auto sensing)

Maximum VA 240 VA

Operating altitude Maximum 2000 m (6562 feet) above

sea level

Operating

temperature

0 °C to 50 °C (32 °F to 122 °F),
70% relative humidity up to 35 °C.
Derate 3% relative humidity,
35 °C to 50 °C

Storage temperature 25 °C to 65 °C (77 °F to 149 °F)

Pollution degree 1 or 2

DC source output 30.3 W maximum

±200 VDC maximum
±1.515 A at ±20 VDC
±101 mA at ±200 VDC

Pulse region 4* Region maximums: 10 A at 5 V

Maximum pulse width: 1 ms

Maximum duty cycle: 2.2%

Measurement input Measurement category I

Voltage: 200 VDC maximum HI to LO,
250 VDC LO to ground
Current: 101 mA at 200 V;

1.515 A at 20 V
Impedance: Variable

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Introduction

Software for the Series 2600B instruments is available for download

from the Keithley web page. Go to www.tek.com/keithley and

search for the specic software you need.

• Test Script Builder (TSB) Integrated Development Environment:
Provides an environment to develop a test program and ability
to load the test program onto the instrument.

• IVI instrument driver for National Instruments LabVIEW™ and
related release notes.

• J2SE™ Runtime Environment.

• Keithley I/O layer and release notes

Introduction

The Keithley Instruments Series 2600B System SourceMeter®
Instruments are medium-power source-measure units (SMUs)

that simplify test processes by combining source and measure

capabilities in a single instrument. A Series 2600B SourceMeter

Instrument is a scalable, high-throughput, cost-effective solution

for precision DC, pulse, and low-frequency AC source-measure

testing.

Complete documentation for the Series 2600B instruments is

available for download on the Keithley web page. Go to

www.tek.com/keithley and search for Series 2600B manual.

The Series 2600B documentation includes:

• Quick Start Guide: Provides unpacking instructions,
describes basic connections, and reviews basic operation
information.

• Reference Manual: Provides comprehensive information
about the instrument’s features, operation, optimization,
maintenance, troubleshooting, and programming commands

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Unpack and inspect the instrument

To unpack and inspect the instrument:

1. Inspect the box for damage.

2. Open the top of the box.

3. Remove the documentation and accessories.

4. Carefully lift the instrument out of the box.

5. Remove the packaging insert.

6. Inspect the instrument for any obvious signs of physical
damage. Report any damage to the shipping agent
immediately.

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Introduction

In addition to the Series 2600B System SourceMeter® Instrument,

you should have received:

1. Keithley USB ash drive containing the Model 2400 software

emulation personality script.

2. Interlock DB-25 male connector kit hardware.

3. One RJ-45 LAN crossover cable for the 2636B. Two RJ-45
LAN crossover cables for the 2634B and 2635B.

4. Power line cord.

5. One triaxial to alligator clip cable for the 3635B. Two triaxial

to alligator clip cables for the 2634B and 2636B.

6. 16 AWG black grounding wire.

7. 3-pin screw terminal connector.

8. UL safety supplement (not shown).

9. Safety Precautions (not shown).

10. 2634B, 2635B, and 2636B System SourceMeter Instruments
Quick Start Guide (this document; not shown).

Refer to the packing list for additional items that might have

shipped with your instrument.

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Introduction

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• Make sure any test xture connected to the system protects the
operator from contact with hazardous voltages, hot surfaces,
and sharp objects. Use shields, barriers, insulation, and safety

interlocks to accomplish this.

• Cover the device under test (DUT) to protect the operator from
ying debris in the event of a system or DUT failure.

• Double-insulate all electrical connections that an operator can
touch. Double insulation ensures the operator is still protected
even if one insulation layer fails. Refer to IEC 61010-1 for
specic requirements.

• Make sure all connections are behind a locked cabinet door or
other barrier. This protects the system operator from accidentally
removing a connection by hand and exposing hazardous

voltages. Use high-reliability fail-safe interlock switches to
disconnect power sources when a test xture cover is opened.

• Where possible, use automatic handlers so operators are not

required to access the DUT or other potentially hazardous

areas.

• Provide training to all users of the system so they understand

all potential hazards and know how to protect themselves from

injury.

• In many systems, during power up, the outputs may be in an

unknown state until they are properly initialized. Make sure the

design can tolerate this situation without causing operator injury
or hardware damage.

Connect the instrument

Important test system safety information

This product is sold as a stand-alone instrument that may
become part of a system that could contain hazardous voltages
and energy sources. It is the responsibility of the test system
designer, integrator, installer, maintenance personnel, and

service personnel to make sure the system is safe during use
and is operating properly. You must also realize that in many

test systems a single fault, such as a software error, may output
hazardous signal levels even when the system indicates that
there is no hazard present. It is important that you consider the
following factors in your system design and use:

• The international safety standard IEC 61010-1 denes

voltages as hazardous if they exceed 30 V

RMS and

42.4 V peak, or 60 VDC for equipment rated for dry

locations. Keithley Instruments products are only rated for
dry locations.

• Read and comply with the specications of all instruments
in the system. The overall allowed signal levels may be
constrained by the lowest rated instrument in the system.

For example, if you are using a 500 V power supply with a
300 VDC rated switch, the maximum allowed voltage in the
system is 300 VDC.

Safety

Introduction

Install the instrument

The 2600B can be used on a bench or in a rack. Please see
the instructions that came with your rack-mount kit if you are
installing the 2600B in a rack.

Connect line power

The Series 2600B operates from a line voltage of 100 V to
240 V at a frequency of 50 Hz or 60 Hz. Line voltage is
automatically sensed (there are no switches to set). Make sure

the operating voltage in your area is compatible.

To keep users safe, always read and follow all safety

warnings provided with each of the instruments in
your system.

The power cord supplied with the Series 2600B
contains a separate ground wire for use with
grounded outlets. When proper connections are
made, the instrument chassis is connected to
power line ground through the ground wire in the
power cord. Failure to use a grounded outlet may
result in personal injury or death due to electric
shock.

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Introduction

Connect

To connect line power:

1. Make sure the front panel power switch is in the off (0)

position.

2. Connect the socket of the supplied power cord to the power
connection on the rear panel.

3. Connect the plug of the power cord to a grounded AC outlet.

Operating the instrument on an incorrect line
voltage may cause damage to the instrument,
possibly voiding the warranty.

Turn on the instrument

Turn on the instrument by pressing the front panel POWER
switch to the on (|) position.

Safety

Introduction

Power-up sequence

When the instrument is turned on, you should see:

• A series of dots.

• All segments of the display light.

• A brief display showing the instrument model. For

example, if the instrument is a 2635B, the display will
show “KEITHLEY Model 2635B.”

• Line frequency detection and other startup checks.

The entire power-up process takes approximately 30 seconds to

complete. When initialization is complete, if the instrument is a

2634B or 2636B, you will see the default display screen, shown

below.

If the instrument is a 2635B, you will see the default display

screen, shown below.

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Introduction

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Test the instrument

The following test veries basic operation of the 2634B, 2635B,
and 2636B. In this test, you will use the front-panel controls

shown below to source voltage and measure the voltage output.

You do not need to connect a device under test (DUT) for this

test.

Step 1: Set source function, range, and level

1. Press the SRC key. You will see a blinking character in the
SrcA value eld. Conrm that mV is displayed; if not, press the
SRC key again.

2. While that character is still blinking, press the up or down
RANGE keys until 20 V is displayed.

If the instrument has two channels (2634B or 2636B) and

is in dual-channel display mode, press the DISPLAY button

once to show only the settings for SMU channel A.

Safety

Introduction

The main display screen reappears:

3. Press the CURSOR keys to move the cursor to
the 10s digit.

4. Press the navigation wheel to enter EDIT mode. The
EDIT indicator appears in the upper left corner of the display.

5. Turn the navigation wheel to set the source value to

20.0000 V, and then press the navigation wheel to enter

the selection and exit EDIT mode.

Step 2: Set the source limit

1. Press the LIMIT key. You will see a blinking character in the
LimA value eld.

2. While that character is still blinking, press down RANGE
keys as needed to select the 10 mA limit range. Verify that the
source limit value in the LimA eld is 10.0000 mA.

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Step 3: Set measurement function and range

1. Press the MEAS key as many times as needed to select
the V (voltage) measurement function. In the following gure,
the measurement function has been set to “V.”

2. Press the AUTO key as many times as needed to
select the AUTO range function. When AUTO is selected,

the Series 2600B automatically selects the best range for the
measured value. You will briey see the display, shown below,

and then the main display screen reappears.

Step 4: Turn the output on

Turn the output on by pressing the OUTPUT ON/OFF control

(for 2634B and 2636B) or (2635B). The ON/OFF indicator LED

lights and measurements begin.

Step 5: Observe measurements

Observe the measured voltage on the main area of front panel

display. The readings should be very close to the 20 V source

value.

Step 6: Turn the output off

When you nish making measurements, turn the output off by

pressing the OUTPUT ON/OFF control or control.

The output indicator LED turns off.

For a basic understanding of the of the Series 2600B functionality,
we strongly recommend that rst-time users become familiar with

the Series 2600B Reference Manual.

These steps conrm basic functionality of your 2634B,
2635B, or 2636B instrument. Turn the instrument power OFF

now.

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Introduction

Test

FAQs

What should I do if I see an error message when I turn the

instrument on?

If an error message is displayed, press the EXIT (LOCAL) key.
The Series 2600B will return to the default display screen. For

detailed information about error messages, see “Errors and

status messages” in the Series 2600B Reference Manual.

How do I use the included USB ash drive?

The USB ash drive included with the Series 2600B can be used

to load test scripts onto the instrument from the front panel. The

included USB ash drive contains a copy of the 2400 personality
script, which allows the Series 2600B instrument to accept
2400 SCPI commands. For more information about loading and
running the 2400 personality script, see “Model 2400 emulation”
in the Series 2600B Reference Manual.

What do I do if I lost or formatted the included USB ash
drive? How can I get another copy of the 2400 personality

script?

If you lose or format the USB drive or delete the 2400

personality script, you can download the latest version from
the Keithley Instruments website. Go to www.tek.com/keithley
and search for TSP Script for Series 2600B SMUs to Emulate
Model 2400 SMUs.

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Next steps

The Series 2600B Reference Manual

Refer to the Series 2600B Reference Manual for detailed

information about all features of the instrument.

Keithley Instruments website

See: www.tek.com/keithley for support and additional information
about the instrument.

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Contact Information:

Australia* 1 800 709 465

Austria 00800 2255 4835

Belgium* 00800 2255 4835

Brazil [phone]

Canada 1 800 833 9200

Central East Europe / Baltics [phone]

Central Europe / Greece [phone]

Denmark [phone]

Finland [phone]

France* 00800 2255 4835

Germany* 00800 2255 4835

Hong Kong 400 820 5835

India 000 800 650 1835

Indonesia 007 803 601 5249

Italy 00800 2255 4835

Japan 81 (3) 6714 3010

Luxembourg [phone]

Malaysia 1 800 22 55835

Middle East, Asia, and North Africa [phone]

The Netherlands* 00800 2255 4835

New Zealand 0800 800 238

Norway 800 16098

People’s Republic of China 400 820 5835

Philippines 1 800 1601 0077

Poland [phone]

Portugal 80 08 12370

Republic of Korea [phone]

Russia / CIS [phone]

Singapore 800 6011 473

South Africa [phone]

Spain* 00800 2255 4835

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