B+K precision 9130C Series User manual

i
9130C Series
Triple Output Programmable DC Power
Supplies
Models: 9130C, 9131C, 9132C
USER MANUAL

ii
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

iii
is specified in this manual for this instrument.
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 finely-
divided 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

iv
where any liquid can condense on the instrument.
•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.
Under certain conditions, even with the power cord removed, dangerous voltages may exist

v
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.

vi
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

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

viii
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

ix
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.

x
Table of Contents
Compliance Statements.............................................................................................................vii
Safety Symbols ............................................................................................................................ix
1General Information.....................................................................................1
1.1 Product Overview............................................................................................................. 1
1.2 Package Contents ............................................................................................................. 1
1.3 Product Dimensions ......................................................................................................... 2
1.4 Rackmount Installation..................................................................................................... 3
1.5 Front Panel Overview....................................................................................................... 5
1.6 Rear Panel Overview ........................................................................................................ 6
1.7 Keypad Overview.............................................................................................................. 7
1.8 Display Overview.............................................................................................................. 8
2Getting Started.............................................................................................9
2.1 Input Power and Fuse Requirements............................................................................... 9
2.2 Fuse Requirements......................................................................................................... 10
2.3 Line Voltage Selection .................................................................................................... 10
2.4 Output Connections ....................................................................................................... 12
2.5 Carrying handle Adjustment .......................................................................................... 13
2.6 Preliminary Check........................................................................................................... 14
3Front Panel Operation ................................................................................16
3.1 Check Model and Firmware Version .............................................................................. 16
3.2 Output Control ............................................................................................................... 16
3.3 Meter Mode ................................................................................................................... 17
3.4 Setting Voltage and Current ........................................................................................... 17
3.5 Over Voltage Protection (OVP)....................................................................................... 18
3.6 Save/Recall Instrument Settings..................................................................................... 18
3.7 Key Lock.......................................................................................................................... 19
3.8 Output Check.................................................................................................................. 19
4Menu Access and Options ..........................................................................21
4.1 How to Access the Menu................................................................................................ 21
4.2 Menu Options................................................................................................................. 21

xi
4.3 Output Power-on State .................................................................................................. 22
4.4 Output Parameters......................................................................................................... 22
4.5 Lock/Unlock Rotary Knob............................................................................................... 22
4.6 Buzzer On/Off................................................................................................................. 23
4.7 Communication.............................................................................................................. 23
4.8 Memory Group............................................................................................................... 24
4.9 Protocol .......................................................................................................................... 24
4.10 Return Meter.................................................................................................................. 24
4.11 System Menu.................................................................................................................. 25
4.12 Combined Series and Parallel Modes............................................................................. 26
4.13 Tracking Mode................................................................................................................ 29
4.14 Parameters in Series/Parallel Mode............................................................................... 30
4.15 Over Temperature Protection ........................................................................................ 30
4.16 Remote Sense................................................................................................................. 30
5Remote Operation......................................................................................32
5.1 Interface Configuration .................................................................................................. 32
6Remote Commands ....................................................................................34
7Troubleshooting Guide ...............................................................................34
8Specifications .............................................................................................36
9Calibration..................................................................................................37
10 SERVICE INFORMATION............................................................................38
11 LIMITED THREE-YEAR WARRANTY ............................................................38

1
1General Information
1.1 Product Overview
The 9130C Series programmable triple output DC power supplies feature isolated outputs that
can be adjusted independently. They can be configured for series or parallel mode when
connecting multiple channels together. The front panel keys and the rotary knob provide a
convenient means for setting values and adjusting parameters. Built-in memory supports
storing and recalling user settings without the need to connect to an external PC. A wide range
of interface options enables remote controllability from a PC.
Features:
•3 independent, fully programmable and electrically isolated outputs
•Front and rear panel output terminals
•Remote Sense on all channels
•Display Voltage and Current of all 3 channels simultaneously
•RS232 and USB remote interfaces
•Series, parallel, and tracking modes
•Output timer function (0.1 - 99999.9 seconds)
•Store/recall up to 36 instrument settings
•Bright and easy to read display (VFD technology)
•OVP, OTP Protection
•Compact half-rack 2U form factor
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 9130C, 9131C, or 9132C Power Supply
•1 x AC Power Cord
•1 x Certificate of Calibration
Verify that all items above are included in the shipping container. If anything is missing, please
contact B&K Precision.

2
1.3 Product Dimensions
The 9130C 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 9131C and 9232C 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).

3
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 9130C 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.

4
To rackmount a single instrument, order rackmount kit IT-E151
To rackmount two instruments side-by-side, order rackmount kit IT-E151 and remove the
front panel cover

5
1.5 Front Panel Overview
Figure 1 - Front Panel
Front Panel Description
VFD display
Shift key
Local key
Power key
Numeric keys
Function keys
Cursor keys
Output terminals
Rotary knob
1
2
3
4
5
6
7
8
9

6
1.6 Rear Panel Overview
Figure 2 - Rear Panel
Rear Panel Description
Cooling fan
Remote sense terminal
AC power input receptacle & fuse box
RS-232 interface
USB interface
1
2
3
4
5

7
1.7 Keypad Overview
Figure 3 - Keypad
Keypad Description
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.
V-set / OVP button
Configures output voltage or sets the overvoltage protection point for the
power supply.
I-set / Menu button
Configures output current or allows access to the power supply menu
settings.
Recall / Save button
Saves and recalls instrument settings.
Meter
Switches from set value display to measured output value display.
Enter
Confirms setting
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.
Up/Down arrow keys
Used to select menu items or increase/decrease output voltage or current
values.
Esc key
Cancel and return to previous menu.

8
1.8 Display Overview
Figure 4 - Display
Display Description
Indicates output is off
Indicates constant voltage mode
Indicates constant current mode
Indicates the shift button is pressed
Tracking mode enabled
Indicates remote mode
Keyboard lock enabled
Indicates the channel currently selected

9
2Getting 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
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.
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.