B&K Precision 9201, 9202, 9205, 9206 Instruction Manual

9200 Series
Multi-Range DC Power Supply

Models: 9201, 9202, 9205, 9206

USER MANUAL

i

Safety Summary

The following safety precautions apply to both operating and maintenance personnel and must
be followed during all phases of operation, service, and repair of this instrument.

Before applying power to this instrument:

 Read and understand the safety and operational information in this manual.
 Apply all the listed safety precautions.
 Verify that the voltage selector at the line power cord input is set to the correct line

voltage. Operating the instrument at an incorrect line voltage will void the warranty.

 Make all connections to the instrument before applying power.
 Do not operate the instrument in ways not specified by this manual or by B&K Precision.

Failure to comply with these precautions or with warnings elsewhere in this manual violates the
safety standards of design, manufacture, and intended use of the instrument. B&K Precision
assumes no liability for a customer’s failure to comply with these requirements.

Category rating

The IEC 61010 standard defines safety category ratings that specify the amount of electrical
energy available and the voltage impulses that may occur on electrical conductors associated
with these category ratings. The category rating is a Roman numeral of I, II, III, or IV. This rating
is also accompanied by a maximum voltage of the circuit to be tested, which defines the voltage
impulses expected and required insulation clearances. These categories are:

Category I (CAT I): Measurement instruments whose measurement inputs are not intended to
be connected to the mains supply. The voltages in the environment are typically derived from a
limited-energy transformer or a battery.

Category II (CAT II): Measurement instruments whose measurement inputs are meant to be
connected to the mains supply at a standard wall outlet or similar sources. Example
measurement environments are portable tools and household appliances.

Category III (CAT III): Measurement instruments whose measurement inputs are meant to be
connected to the mains installation of a building. Examples are measurements inside a
building's circuit breaker panel or the wiring of permanently-installed motors.

Category IV (CAT IV): Measurement instruments whose measurement inputs are meant to be
connected to the primary power entering a building or other outdoor wiring.

Do not use this instrument in an electrical environment with a higher category rating than what
is specified in this manual for this instrument.

ii

You must ensure that each accessory you use with this instrument has a category rating equal to
or higher than the instrument's category rating to maintain the instrument's category rating.
Failure to do so will lower the category rating of the measuring system.

Electrical Power

This instrument is intended to be powered from a CATEGORY II mains power environment. The
mains power should be 120 V RMS or 240 V RMS. Use only the power cord supplied with the
instrument and ensure it is appropriate for your country of use.

Ground the Instrument

To minimize shock hazard, the instrument chassis and cabinet must be connected to an
electrical safety ground. This instrument is grounded through the ground conductor of the
supplied, three-conductor AC line power cable. The power cable must be plugged into an
approved three-conductor electrical outlet. The power jack and mating plug of the power cable
meet IEC safety standards.

Do not alter or defeat the ground connection. Without the safety ground connection, all
accessible conductive parts (including control knobs) may provide an electric shock. Failure to
use a properly-grounded approved outlet and the recommended three-conductor AC line power
cable may result in injury or death.

Unless otherwise stated, a ground connection on the instrument's front or rear panel is for a
reference of potential only and is not to be used as a safety ground.

Do not operate in an explosive or flammable atmosphere

Do not operate the instrument in the presence of flammable gases or vapors, fumes, or finely­divided particulates.

The instrument is designed to be used in office-type indoor environments. Do not operate the
instrument

 In the presence of noxious, corrosive, or flammable fumes, gases, vapors, chemicals, or

finely-divided particulates.

 In relative humidity conditions outside the instrument's specifications.
 In environments where there is a danger of any liquid being spilled on the instrument or

where any liquid can condense on the instrument.

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 In air temperatures exceeding the specified operating temperatures.
 In atmospheric pressures outside the specified altitude limits or where the surrounding

gas is not air.

 In environments with restricted cooling air flow, even if the air temperatures are within

specifications.

 In direct sunlight.

This instrument is intended to be used in an indoor pollution degree 2 environment. The
operating temperature range is 0 °C to 40 °C and the operating humidity range is up to 80%
relative humidity with no condensation allowed.
Measurements made by this instrument may be outside specifications if the instrument is used
in non-office-type environments. Such environments may include rapid temperature or
humidity changes, sunlight, vibration and/or mechanical shocks, acoustic noise, electrical noise,
strong electric fields, or strong magnetic fields.

Do not operate instrument if damaged

If the instrument is damaged, appears to be damaged, or if any liquid,
chemical, or other material gets on or inside the instrument, remove the instrument's power
cord, remove the instrument from service, label it as not to be operated, and return the
instrument to B&K Precision for repair. Notify B&K Precision of the nature of any contamination
of the instrument.

Clean the instrument only as instructed

Do not clean the instrument, its switches, or its terminals with contact cleaners, abrasives,
lubricants, solvents, acids/bases, or other such chemicals. Clean the instrument only with a
clean dry lint-free cloth or as instructed in this manual.

Not for critical applications

This instrument is not authorized for use in contact with the human body or for use as a
component in a life-support device or system.

Do not touch live circuits

Instrument covers must not be removed by operating personnel. Component replacement and
internal adjustments must be made by qualified service-trained maintenance personnel who
are aware of the hazards involved when the instrument's covers and shields are removed.

iv

Under certain conditions, even with the power cord removed, dangerous voltages may exist
when the covers are removed. To avoid injuries, always disconnect the power cord from the
instrument, disconnect all other connections (for example, test leads, computer interface
cables, etc.), discharge all circuits, and verify there are no hazardous voltages present on any
conductors by measurements with a properly-operating voltage-sensing device before touching
any internal parts. Verify the voltage-sensing device is working properly before and after making
the measurements by testing with known-operating voltage sources and test for both DC and AC
voltages. Do not attempt any service or adjustment unless another person capable of rendering
first aid and resuscitation is present.
Do not insert any object into an instrument's ventilation openings or other openings.

Hazardous voltages may be present in unexpected locations in circuitry being tested when a
fault condition in the circuit exists.

Fuse replacement

Fuse replacement must be done by qualified service-trained maintenance personnel who are
aware of the instrument's fuse requirements and safe replacement procedures. Disconnect the
instrument from the power line before replacing fuses. Replace fuses only with new fuses of the
fuse types, voltage ratings, and current ratings specified in this manual or on the back of the
instrument. Failure to do so may damage the instrument, lead to a safety hazard, or cause a fire.
Failure to use the specified fuses will void the warranty.

Servicing

Do not substitute parts that are not approved by B&K Precision or modify this instrument.
Return the instrument to B&K Precision for service and repair to ensure that safety and
performance features are maintained.

Cooling fans

This instrument contains one or more cooling fans. For continued safe operation of the
instrument, the air inlet and exhaust openings for these fans must not be blocked nor must
accumulated dust or other debris be allowed to reduce air flow. Maintain at least 25 mm
clearance around the sides of the instrument that contain air inlet and exhaust ports. If
mounted in a rack, position power devices in the rack above the instrument to minimize
instrument heating while rack mounted. Do not continue to operate the instrument if you
cannot verify the fan is operating (note some fans may have intermittent duty cycles). Do not
insert any object into the fan's inlet or outlet.

v

Use correctly sized wires

To connect a load to the power supply, use a wire diameter large enough to handle the
maximum continuous output short-circuit current of the power supply without the wire
overheating.

For continued safe use of the instrument

 Do not place heavy objects on the instrument.
 Do not obstruct cooling air flow to the instrument.
 Do not place a hot soldering iron on the instrument.
 Do not pull the instrument with the power cord, connected probe, or connected test

lead.

 Do not move the instrument when a probe is connected to a circuit being tested.

vi

Compliance Statements

This product is subject to Directive 2002/96/EC of the European
Parliament and the Council of the European Union on waste electrical
and electronic equipment (WEEE), and in jurisdictions adopting that
Directive, is marked as being put on the market after August 13, 2005,
and should not be disposed of as unsorted municipal waste. Please
utilize your local WEEE collection facilities in the disposition of this
product and otherwise observe all applicable requirements.

Disposal of Old Electrical & Electronic Equipment (Applicable in the European
Union and other European countries with separate collection systems)

vii

CE Declaration of Conformity

This instrument meets the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC
Electromagnetic Compatibility Directive with the following standards.

Low Voltage Directive

- EN61010-1: 2001

EMC Directive

- EN 61000-3-2: 2006

- EN 61000-3-3: 1995+A1: 2001+A2: 2005

- EN 61000-4-2 / -3 / -4 / -5 / -6 / -11

- EN 61326-1: 2006

viii

Safety Symbols

Refer to the user manual for warning information
to avoid hazard or personal injury and prevent
damage to instrument.

Electric Shock hazard

On (Supply). This is the AC mains
connect/disconnect switch on the front of the
instrument.

Off (Supply). This is the AC mains
connect/disconnect switch on the front of the
instrument.

Direct current

Alternating current

Fuse Symbol

Chassis (earth ground) symbol

Ground terminal

Protective earth ground

CAUTION indicates a hazardous situation which, if
not avoided, will result in minor or moderate injury

WARNING indicates a hazardous situation which, if
not avoided, could result in death or serious injury

DANGER indicates a hazardous situation which, if
not avoided, will result in death or serious injury.

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Table of Contents

Safety Summary .................................................................................................. ii

Compliance Statements ............................................................................................................. vii

Safety Symbols ............................................................................................................................ ix

1 General Information ..................................................................................... 1

1.1 Product Overview ............................................................................................................. 1

1.2 Package Contents ............................................................................................................. 1

1.3 Product Dimensions ......................................................................................................... 2

1.4 Rackmount Installation..................................................................................................... 2

1.5 Front Panel Overview ....................................................................................................... 4

Front Panel Description ........................................................................................................... 4

1.6 Keypad Overview .............................................................................................................. 5

Keypad Description ................................................................................................................. 5

1.7 Rear Panel Overview ........................................................................................................ 6

Rear Panel Description ............................................................................................................ 6

1.8 Display Overview .............................................................................................................. 7

Display Description .................................................................................................................. 7

2 Getting Started ............................................................................................. 8

2.1 Input Power and Fuse Requirements ............................................................................... 8

Input Power ............................................................................................................................. 8

Fuse Requirements .................................................................................................................. 9

2.2 Line Voltage Selection ...................................................................................................... 9

2.3 Output Connections ....................................................................................................... 11

2.4 Preliminary Check ........................................................................................................... 12

Self-test Errors ....................................................................................................................... 12

Output Check ......................................................................................................................... 12

Check Model and Firmware Version ..................................................................................... 13

3 Front Panel Operation ................................................................................ 14

3.1 Menu Options ................................................................................................................. 14

How to Access the Menu ....................................................................................................... 14

x

3.2 Configure Voltage and Current Output .......................................................................... 15

Setting Voltage ...................................................................................................................... 15

Setting Current ...................................................................................................................... 16

Remote Sense ........................................................................................................................ 16

3.3 Voltage/Current Measurement ...................................................................................... 18

3.4 SYSTEM Menu ................................................................................................................ 18

Voltage Limit Setting ............................................................................................................. 18

Configure Overcurrent Protection (OCP) ............................................................................... 19

Configure Power-On State ..................................................................................................... 19

Remote Communication Configuration ................................................................................ 19

Enable/Disable Key Sound ..................................................................................................... 19

Lock/Unlock Rotary Knob ...................................................................................................... 20

Configure Trigger Source ....................................................................................................... 20

Save/Recall Instrument Settings ........................................................................................... 20

Timer Function ...................................................................................................................... 21

Restore Factory Default Settings ........................................................................................... 22

3.5 LIST Menu ....................................................................................................................... 23

Enable/Disable List Mode ..................................................................................................... 23

Load List File .......................................................................................................................... 24

Edit List File ........................................................................................................................... 24

3.6 Overvoltage Protection (OVP) ........................................................................................ 25

3.7 Key Lock .......................................................................................................................... 25

3.8 Digital Voltmeter (DVM) ................................................................................................. 26

4 Remote Operation ...................................................................................... 27

4.1 Interface Configuration .................................................................................................. 27

RS-232 ................................................................................................................................... 27

USB ........................................................................................................................................ 28

GPIB ....................................................................................................................................... 28

5 Remote Commands .................................................................................... 29

5.1 Parameter Definition ...................................................................................................... 29

5.2 SCPI Status Register ........................................................................................................ 30

5.3 IEEE488.2 Common Commands ..................................................................................... 33

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5.4 STATUS Subsystem .......................................................................................................... 35

5.5 SYSTEM Subsystem ......................................................................................................... 36

5.6 TRIGGER Subsystem ....................................................................................................... 39

5.7 SOURCE Subsystem ........................................................................................................ 39

5.8 MEASUREMENT Commands ........................................................................................... 43

5.9 LIST Commands .............................................................................................................. 45

6 Troubleshooting Guide ............................................................................... 47

General .................................................................................................................................. 47

Remote Control ..................................................................................................................... 47

7 Specifications ............................................................................................. 48

8 Calibration .................................................................................................. 49

SERVICE INFORMATION ..................................................................................... 50

LIMITED THREE-YEAR WARRANTY ..................................................................... 51

xii

1 General Information

1.1 Product Overview

The 9200 Series power supplies are multi-range single-output DC power supplies capable of
replacing several supplies on the bench. Unlike conventional supplies with fixed output ratings,
these multi-range power supplies automatically re-calculate voltage and current limits for each
setting, providing full output power in any Volt/Amp combination within the rated voltage and
current limits. Each model in the 9200 Series comes standard with USB, GPIB, and RS-232
communication interfaces for remote control.

Features:

 High visibility VFD display
 Easy-to-use interface with numerical keypad, cursors, and rotary control knobs
 High programming and readback resolution
 Low ripple and noise
 Intelligent fan control
 List mode programming
 Standard USB, GPIB, and RS-232 interfaces
 Software for remote control
 SCPI-compliant command set
 Output timer function
 Overvoltage protection (OVP), overcurrent protection (OCP), and overtemperature

protection (OTP)

1.2 Package Contents

Please inspect the instrument mechanically and electrically upon receiving it. Unpack all items
from the shipping carton, and check for any obvious signs of physical damage that may have
occurred during transportation. Report any damage to the shipping agent immediately. Save the
original packing carton for possible future reshipment. Every power supply is shipped with the
following contents:

 1 x 9201, 9202, 9205, or 9206 Power Supply
 1 x User Manual
 1 x AC Power Cord
 1 x Certificate of Calibration
 1 x Test Report

Verify that all items above are included in the shipping container. If anything is missing, please
contact B&K Precision.

1

1.3 Product Dimensions

The 9201 and 9202 power supply’s dimensions are approximately 214.5 mm (8.44 in) x 88.2 mm
(3.47 in) x 354.6 mm (13.96 in) (W x H x D). The 9205 and 9206 power supply’s dimensions are
approximately 214.5 mm (8.44 in) x 88.2 mm (3.47 in) x 445 mm (17.52 in) (W x H x D).

Note: All dimensions in the figures below are measured in millimeters (mm).

1.4 Rackmount Installation

The instrument can be installed in a standard 19-inch rack using the optional IT-E151 rackmount
kit. Below is an image of a 9200 Series model installed with the IT-E151 rackmount kit.

Note: Remove the carrying handle and the two plastic ears before mounting the instrument. To

remove the handle, grasp the handle by its sides, pull outwards, and rotate it until the
arrow on the handle and the arrow on the plastic ears are in opposite directions. Then
pull the handle outward. After removing the handle, you can use a screwdriver to
remove the two plastic ears.

2

To rackmount a single instrument, order rackmount kit IT-E151

Side view of rackmounting a single instrument

To rackmount two instruments side-by-side, order rackmount kit IT-E151, the front cover
panel is not needed.

3

VFD display

Shift key

Local key

Power key

Numeric keys

Function keys

Cursor keys

Output terminal

Rotary knob

1

2

3

4 5 6 7 8

9

1 2 3

4 5 6

7

9

8

1.5 Front Panel Overview

Front Panel Description

Figure 1 Front Panel View

4

Shift key

Enables access to secondary functions (Labeled in blue)

Local key

Sets the instrument back to local mode.

Power key

Power on the instrument.

~

Numeric keypad

Enters numeric values for various parameters.

Vset / OVP button

Configures output voltage or sets the overvoltage protection point for the
power supply.

Iset / Menu button

Configures output current or allows access to the power supply menu
settings.

Recall / Save button

Saves and recalls instrument settings.

Meter / DVM button

Switches from set value display to metered output value display or switches
to digital voltmeter function.

Enter / Trigger key

Confirms setting/parameter changes or used to trigger a list program.

Output / Lock button

Controls output On/Off state of the power supply or used to lock the front
panel buttons.

Left/Right arrow keys

Adjusts cursor position or select menu items.

1.6 Keypad Overview

Keypad Description

Figure 2 Keypad View

5

Up/Down arrow keys

Used to select menu items or increase/decrease output voltage or output
current values.

Esc key

Cancel and return to previous menu.

Cooling fan

RS-232 interface

USB interface

GPIB interface

AC power input receptacle

Fuse box

DVM input terminal

Remote sense terminal

Output terminal

7 8 9

1 2 3 4 5

6

7 8

9

1

2

3 4 5

6

1.7 Rear Panel Overview

Rear Panel Description

6

OFF

Indicates output is off

CV

The power supply is in constant voltage mode

CC

The power supply is in constant current mode

*

Not used

Timer

Indicates output on timer function is ON

Sense

Indicates remote sense

Ext

Not used

Adrs

Indicates remote communication activity

Meter

Indicates Meter ON state

Shift

Indicates shift mode (for access to secondary button functions)

OVP

Indicates overvoltage protection trip

OCP

Indicates overcurrent protection trip

Rmt

Indicates remote mode

Error

Indicates an error has occurred

Prot

Indicates protection trip for overvoltage or overtemperature

Lock

Indicates key lock is enabled

1.8 Display Overview

Display Description

7

The included AC power cord is safety certified for this
instrument operating in rated range. To change a
cable or add an extension cable, be sure that it can
meet the required power ratings for this instrument.
Any misuse with wrong or unsafe cables will void the
warranty.

SHOCK HAZARD:

The power cord provides a chassis ground through a
third conductor. Verify that your power outlet is of the
three-conductor type with the correct pin connected
to earth ground.

2 Getting Started

Before connecting and powering up the instrument, please review and go through the
instructions in this chapter.

2.1 Input Power and Fuse Requirements

Input Power

The supply has a selectable AC input that accepts line voltage input within:

Voltage: 110 V (+/- 10 %) or 220 V (+/- 10 %)
Frequency: 47 Hz – 63 Hz

Before connecting to an AC outlet or external power source, be sure that the power switch is in
the OFF position and verify that the AC power cord, including the extension line, is compatible
with the rated voltage/current and that there is sufficient circuit capacity for the power supply.
Once verified, connect the cable firmly.

8