The follow ing safety pre cautions apply t o 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 operation a l inform ation 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 l in e
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 me a s ure m ent i nputs are not intended to
be connected to the mains supply. The voltages in the environment are typically derived from a
limited-energy transforme r 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
ii
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, thr ee-conductor AC line power cable. The power cable must be plugged into an
approv ed 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 fine lydivided particulates.
The instrument is designed to be used in o ffice-type indoor environments. Do not operate the
instrument
• In the presence of noxious, corrosive, or flammable fumes, gases, vapors, chemicals, or
finely-divided partic ul ates.
• 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
iii
where any liquid can condense on the instrum ent.
• 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
operati ng t e mperature range is 0 °C to 40 °Cand 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 fiel ds .
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, l abe l i t 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 onl y as ins truc ted
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 qua l ified 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
iv
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 touchi ng
any internal parts. Verify the voltage-sensing device is working properly before and after making
the measurement s 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 th e
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 i nstrument.
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 tes ted
vi
Compliance Statements
This product is subject to Directive 2002/96/EC of the European
Disposal of Old Electrical & Electronic Equipment (Applicable in the European
Union and other European countries with separate collection systems)
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.
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
damage to instrument.
On (Supply). This is the AC mains
instrument.
Off (Supply). This is the AC mains
instrument.
()
()
to avoid hazard or personal injury and prevent
Electric Shock hazard
connect/disconnect swit c h on the front of the
connect/disconnect swit c h on the front of the
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.
ix
Table of Contents
Compliance Statements ............................................................................................................. vii
Safety Symbo ls ............................................................................................................................ ix
1 General Information ..................................................................................... 1
The 9130B 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 with out the need to connect to an externa l 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/USB/GPIB 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, OCP, 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 resh ip men t. Every power supply i s s hipped with the
follo wing contents:
• 1 x 9130B, 9131B, or 9132B 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 Di me nsions
The 9130B 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 9131B and 9232B 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).
2
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 9130B 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.
3
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 cov e r
4
1 2 3
4 5 6
7
8
9
1.5 Front Panel Overview
Front Panel Description
VFD display
Shift key
Local key
Po wer key
Numeric keys
Function keys
Curs or keys
Output terminals
Rotary knob
Figure 1 - Front Panel
5
1
2
3
4
5
6
1.6 Rear Panel Overview
Rear Panel Description
Cooling fan
Remote sense terminal
AC power inpu t rec epta cle & fuse box
RS-2 32 inte rface
USB interface
GPIB interface
Figure 2 - Rear Panel
6
V-set / OVP button
power supply.
I-set / Menu button
settings.
Output / Lock button
panel buttons.
Up/Down arrow keys
values.
1.7 Keypad Overview
Keypad Description
Shift key
Enables access to secondary functions (Labeled in bl ue)
Local key
Sets the instrument back to local mode.
Po wer key
Power on the instrument.
~
Numeric keypad
Enters numeric values for various parameters.
Configures output voltage or sets the overvoltage protec tion point for the
Configures output current or allows access to the power suppl y menu
Recall / Save button
Saves and recalls instrument settings.
Figure 3 - Keypad
Meter
Switches from set value display to measured output val ue di splay.
Enter
Confirms setting
Controls output On/Of f state of the power supply or used to loc k the front
Left/Right arrow keys
Adjusts cursor position or select menu items.
Used to select menu items or i ncrease/decrease output voltage or current
Esc key
Cancel and return to previous m e nu.
7
1.8 Display Overview
Display Description
Indicates output is off
Indicates constant voltage mode
Indicates constant current mode
Indicates the shift button is pressed
Tracking mode enabled
Figure 4 - Display
Indicates remote mode
Keyboard lock enabled
Indicates the channel currently selected
8
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
The supply has a selectable AC inp u t that accepts line voltage input within:
Voltage: 110 V (+/- 10 %) or 220 V (+/- 10 %)
Frequency: 47 Hz – 63 Hz
Before connecting to an AC outl et 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 the re 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 rate d range . To change a
cable or add an extension cable, be sure that it can
meet the required power rating s for this inst rument.
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.
9
Model
Fuse Specification (110V AC)
Fuse Specification (220V AC)
9130B
6.3A 250V
3.15A 250V
9131B
10A 250V
5A 250V
9132B
10A 250V
5A 250V
before proceeding.
Fuse box slit
Fuse box
Check/Remove Fuse
2.2 Fuse Requirements
An AC input fuse is necessary when powering the instrument. The below table shows the fuse
required for all models operating with either 110V AC or 220V AC input.
Table 2.1 - Fuse Table
2.3 Line Voltage Selection
The power supplies can be selected to operate with 110 V input or 220 V input. To ensure that
your instrument is properly configured to operate at the desired AC line voltage, please follow
the steps below:
For safety, no power should be applied to the
instrument while changing line voltage operation.
Disconnect all cables connected to the instrument
Step 1 - Check and/or Change Fuse
- Locate the fuse box next to the AC input connector in the rear panel (see Figure 2)
- With a small flat blade screwdriver, insert into the fuse box slit to pull and slide out the fuse
box as indicated below.
- Check and replace fuse (if necessary) for the desired line voltage operation (see Table 1 Fuse Table).
Figure 5 - Fuse replacement
10
void all warrant y.
will void the warranty of the instrume nt.
Line Voltage Switch
Rear Panel
Front Panel
(Bottom View)
Step 2 - Check and/or Change Line Voltage Switch
- Locate the Line Voltage Switch, which has m ar ki ngs that indicate “110” for 110V or “220” for
220V line operation. Depending on the model, the Line Voltage Switch will be located either on
the rear or bottom of the instrument. Set the swi tch to the desired line voltage o peration.
Figure 6 - Line Voltage Switch Location
Do not connect power to the instrument until the line
voltage selection is setup correctly. Applying an
incorrect line voltage or configuring the line voltage
selection improperly may damage the instrument and
Any disassembling of the case or changing the fuse
not performed by an authorized service technician
11
resistances in the wires.
SHOCK HAZARD:
2.4 Output Connections
The main DC output terminal is a bi nding post term ina l on the front panel.
Before connecting wires to the output terminals, turn
OFF the power supply to avoid damage to the
instrument and the device under test (DUT). For
safety, load wires must have a wire gauge size large
enough to prevent overheating when the power
supply operates at maximum short circuit output
current. It will also prevent large voltage dro ps from
Hazardous voltages may exist at the outputs and the
load connections when using a pow e r supply wi th a
rated output greater than 40V. To protect personnel
against accidental contact with hazardous voltages,
ensure that the load and its connections have no
accessible live parts. Ensure that the load wiring
insulation rating is greate r than to the maximum
output voltage of the power supply.
12
Figure 7 - Carrying Handle
2.5 Carrying handle Adjustment
To adjust the position, grasp the handle by the sides and pull outward. Then rotate the handle
to the desired position.
Bench operation
Handle transport position
Be sure the handle is locked in position and avoid
twisting movements while transporting as the handle
can damage and drop the power supply.
13
Note: The initial power on state is based on the settings
in the (Config) configuration menu.
2.6 Preliminary Check
Complete the following steps to verify that the power supply is ready for use.
1.Verify AC Input Voltage
Verify and check to make sure proper AC voltages are available to power the instrument.
The AC voltage range must meet the acceptable specification as explained in “2.1 Input
Power and Fuse Requirements”.
2.Connect Power and Self-Test
Connect AC power cord to the AC receptacle in the rear panel and press the power
switch to the |( ) ON position to turn ON the instrument. It will run through a selftest procedure.
After power on, during the self-test, the following should be displ ayed on the VFD:
Figure 7 - Scan System
After the Scan System is complete the VFD will display as shown in Figure 9.
Figure 9 - Scan Complete
14
Error Message on Display
Description
EEPROM Fail
The internal EEPROM is corrupted or damaged.
System Lost
Last system settings within the EE PROM are lost.
Model Fail
Channel respo ns e failure.
Cal Lost
Calibration data within the EEPROM is lost.
Fac t Loss
Factory calibration data is lost.
Model Lost
Channel initialization failed.
Self-test Errors
The following error s will be displa yed if the self-test did not complete successfully:
If any of these errors occur, please contact B&K Precision.
15
1
2
3
3 Front Panel Operation
At p owe r-on, the power supply will automatically enter the front-panel operation mode and the
instrument can be controlled via the front panel keys and knob.
The power supply enters remote mode as soon as a valid remote command is received via the
selected communication interface in the rea r panel. The VFD also displays a “” symbol in the
lower left to indicate remote mode. Switching to remote mode does not impact the supply’s
output parameters. In remote mode, front-panel operation is disabled. Only Meter and Local
buttons are enabled. If the power supply is in remote mode and the key is enabled, you
can revert to manual mode by pressing the key.
The power supply is in Meter mode when it is powered on. In this mode, the VFD will display
the output voltage and current.
The output of the power supply can be enabled/disabled from the front panel by pressing the
button. When output is enabled, the supply will display the state and voltage/current of
each channel. ”” represents constant current mode. ” ” represents constant voltage mode.
This is indicated for each channel independently. When output is disabled, the VFD will display
<OFF> for each channel if the supply is in Meter mode. If the supply is not in Meter mode, I-SET
current settings of each channel will be displayed.
3.1 Check Model and Firmware Version
The firmware version, mo del, and serial number can be verified by pressing the followed
by Info . This information can also be acquired by using the *IDN? remote command via
any of the remote interfaces connected to a computer.
3.2 Output Control
Pressing the button toggles the output state of all 3 channels of the power supply.
To control the output state of each channel individually, press, , or for
channels 1, 2, or 3 respectively.
16
Note: To see the voltage and current setting changes, make sure the instrument is not
Meter for more information on this mode.
3.3 Meter Mode
The power supply can display the set voltage and current values or the measured voltage and
current readings. Press the button t o toggle between dis pl aying setti ng s a nd m ea s ured
readings. When the button is illuminated, the display shows the measured voltage and
current readings. When it is not illuminated, the display shows the set voltage and current
values.
3.4 Setting Voltage and Current
Follow the steps below to set the output voltage or current. The values can be entered using the
numeric keypad, rotary knob o r the Up/Down arrow keys .
1. Using the keypad: Presskey to select channel (selected channel is indicated by
), press (for voltage) or (for current) and the button will illuminate.
Then enter a numerical value on the keypad followed by .
2. Using the rotory knob: Press key to select channel (selected channel is indicated
by ), press (for voltage) or (for current), then press to move
the cursor position and adjust the voltage or current value using the rotory knob.
3. Using the Up/Down arrows: Press key to select channel (selected channel is
indicated by ), press (for voltage) or (for current),then press
to move the cursor position and adjust the voltage or current value using .
displaying in meter mode ( button is not illuminated in this mode). See 4.10 Return
When output i s ON, the user can use the rotary knob to adjust the voltage value when the
output is in constant voltage mode. The s ame can be done to adjust the cur rent value when
output is in constant cu r rent mode.
17
Note: Avoid exceeding 120% of the rated voltage across the output terminals or it will
damage the power supply.
3.5 Over Voltage Protection (OVP)
Over voltage protection can be set for each channel. Follow the steps below.
1. Press key to select the channel.
2. Press followed by the button. The display will show OVP Set and OFF ON
options below.
3. Use the keys to select OFF or ON to disable or enable OVP for the selected channel.
4. Press and the display below OVP Set will indicate the OVP voltage limit.
5. Use the numeric keypad, rotary knob or the Up/Down arrow keys to change the
desired voltage limit, then press to confirm the changes.
6. Repeat the above steps for setting each channel.
When OVP protection is tripped during operation, the output w il l turn off and the power s up pl y
will display OVER VOLT. To clear the trip status, press any key once.
3.6 Save/Recall Instrument Settings
Up to 36 instrument settings can be saved/recalled from the instrument’s internal memory. The
settings that can be saved/recalled are set voltage, set current, OVP settings, and maximum
voltage limit settings.
Save Settings
1. Configure the settings you want to save and press key and button to enter
Save mode.
2. The button will flash on and off until a Save location value is entered.
3. Use the numeric keypad to enter the memory location between 1 and 9. Once the
location number is entered, the power supply will display Save Data Done! and return to
normal operation.
4. To save more than 9 settings, refer to “4.8 Memory Group”.
5. To exit Save mode at any time, press key.
Recall Settings
1. Press button to enter Recall mode. The button will be illuminated.
2. Use the numeric keypad to enter the memory location between 1 through 9 to recall
18
Note: When in Recall mode, users can recall settings from different locations without
to press additional keys each time. For example, you can press 1 to recall settings
in location 1, and then press 5 to immediately recall settings in location 5.
saved se ttings from that location. If the selected memory location does not have any
saved settings, the message Recall Data Empty! will be display e d.
having
3. To exit Recall mode at any time, press the button again or press .
3.7 Key Lock
The front panel keys can be locked to prevent unwanted changes to output settings and power
supply configurations. Follow the steps below to enable/disable key lock.
1. Press the key and the button. A Lock indicator will light up on the
display, indicating that the front panel keys are locked. A t this point, all keys are disabled
exc e pt for the key,button and button.
2. To unlock the keys, press the key and button again. The Lock indicator
will disappear and all keys will be enabled.
3.8 Output Check
Voltage Check
Follow the steps below to chec k the voltage output with no load connected.
1. Turn on the power supply. The display should look like the following.
Figure 10 - Voltage Check
2. Enable the output by pressing ; the button will i l lum i nate. The < >will be
replaced with a numeric value and a next to this value for each channel.
3. Press the button if it is illumin ated to enter the settings mode.
4. Press first, and then a numeric value on the keypad and then press the
button.
Note: The button will automatically return to meter mode and illuminate after
5 seconds of a valid entry (see 4.10 Return Meter to disable this).
19
5. If the button is not already illuminated, press it once and the display will show
the measured voltage at the output. This voltage may fluctuate slightly from the voltage
value entered in the previous steps.
6. (Optional) You may also verify the output voltage by connecting the (+) and (-) terminals
to an external voltmeter. The measured value should match or be comparable to the
entered voltage value.
7. Verify channels 2 and 3 according to st eps 1 through 6.
Current Chec k
Follow the steps below to chec k current output of the power supply.
1. Turn off all output channels ( not illuminated). The display will show the <>
annunciator for all channels on the display.
2. Short the (+ ) and (-) output terminals for CH1 with test leads or a shorting bar.
3. Set the power supply to settings mode (press so that it is not illuminated).
4. Press the button first and th en ente r the value (i.e. 1.000 A) on the keypad and
press the button. The current display will now show the value you entered.
5. Enable the output by pressing the button. The <> annunciator will be
replaced with a next to the value entered indicating the power supply is in constant
current mode. This numeric value may fluctuate slightly fro m the current value entered
in ste p 4.
6. (Optional) You may also verify the output current by connecting the (+) and (-) terminals
to an external current meter capable of measuring the current that you set. The
measured value should match or be comparable to the entered current value.
7. Verify channels 2 and 3 according to st eps 1 through 6.
8. Press the power switch to turn off the power supply and remove the short on the output
terminals.
20
Config
OutState
Set the output state during power-on.
OutParam
Set the power-on parameters
Knob
Lock/unlock the rotary knob
Buzzer
Enable/disable instrument beeper
Communication
Select and configure RS232, GPIB, and USB interfaces
MemoryGroup
Select memory group
Protocol
Select SCPI options
ReturnMeter
Enable automatic return state
Reset
Reset menu
Exit
Move up menu structure
System
CH1
Configure channel 1
4 Menu Access and Options
4.1 How to Access the Menu
Before using the instrument, it is important to be familiarized with its menu structure and learn
how to view or change settings and parameters. Follow the steps below to guide you in
selecting the menu options.
1. From the normal display, press the key and the button to enter the menu.
2. Use the keys or encoder knob to move through the menu selections.
3. When the selected item is blinking, pre ss the button to access its menu
settings. There may be parameters or options to select within each menu item. Follow
the same instructions as described in the previous steps to select th em.
4. To save changes to a setting, press the button.
To exit the menu at any time, press the key multiple times. Each press exits out of a
submenu.
4.2 Menu Options
All settings and parameters can be configured from the built-in menu system of the power
supply. The menu system is divided into the following sections as displayed on the power
supply.
21
CH2
Configure channel 2
CH3
Configure channel 3
Comb
Off
Turns off series, parallel, or tracking mode
Series
Configure series mode
Para
Configure parallel mode
Track
Configure tracking mode
Exit
Move up menu structure
4.3 Output Power-on State
The initial power-on state of the power supply outputs can be configured.
1. From the Config menu, select OutState and press the button.
2. There are two options that can be selec ted using the keys or rotary knob:
3. OFF – Default output state.
4. Last – Last output state during the last power-off.
5. Select OFF or Last and press the button.
6. To exit the menu at any time, press twice.
4.4 Output Parameters
This option sets the voltage and current output state values at power-on.
1. From the Config menu, select OutParam and pre ss the button.
2. There are two options that can be selec ted using the curser keys or rotary
knob:
3. Reset – Restores the default voltage, current, and output states based on factory default
parameters.
Keep – Restores the voltage, current, and output states for each channel based on the
settings during last power-off.
4. Select the desired settings for power-on, and press the button to save changes.
5. To exit the menu at any time, press the key twice.
4.5 Lock/Unlock Rotary Knob
This option enables or disables the rotary knob.
1. From the Config menu, select Knob and press the button.
2. There are two options that can be selected by using the keys or rotary knob:
Unlock – Enable rotary knob
22
Lock – Disable rotary knob
3. To exit the menu at any time, press the key twice.
4.6 Buzzer On/Off
This option enables or disables the instrument beeper.
1. From the Config menu, select Buzzer and press the button.
2. There are two options that can be selected by using the keys or rotary knob:
3. Select one of two options below, then press the button:
OFF – Beep is turned off.
ON – Beep is turned on.
4. To exit the menu at any time, press the key twice.
4.7 Communication
Follow the instructions below to select and configure the remote interface.
RS232
1. From the Config menu, select RS-232 and press the button. This will select the
RS-232 interface for rem ot e communication.
2. There are four options that can be select e d by using the keys or rotary knob:
3. Use the to select the Baud Rate – 4800, 9600, 19200, 38400, 57600 or 115200
and press button.
4. Use the keys to select the Parity – N None, O Odd, or E Even and press the
button.
5. Use the to select the Control Flow – Single or Mux and press the
button.
6. To exit the menu at any time, press the key twice.
Factory default: 4800,8,N,1, Single
USB
1. From the Config menu, select USB and press the button. This will select the
USB interface for remote communication.
2. To exit the menu at any time, press the key twice.
23
GPIB
1. From the Config menu, select GPIB and pr es s the button. This will select the
GPIB interface for remote communication.
2. Use the keys to select Address 1-31 and press the button.
3. To exit the menu at any time, press the key twice.
4.8 Memory Group
Up to 36 instrument settings can be stored int o the instrument’s non-volatile memory. The
internal memory bank is di v ided into four groups. They are Grp1, Grp2, Grp3 and Grp4. Each
group can save 9 different operating states (1-9).
From the Config menu, select MemoryGroup and press the button.
Use the keys or rotary knob to select one of the four groups – Grp1, Grp2, Grp3, or
Grp4 an d p ress the button.
To save the first 9 instrument settings, select Grp 1, then exit the menu and follow the
instructions in section “3.6 Save/Recall Instrument Settings” to save and recall settings. To save
additional settings, select Grp 2, Grp3, or Grp4, then follow the sa m e steps in section 3.6.
4.9 Protocol
From the Config menu, select Protocol and press the button.
There are three options: DEFAULT, EXT1, LEGACY. Select one of the options by us ing the
keys or rotary knob and pres s the button. The DEFAULT option is
recommended for most applic a tio ns. The LEGACY option supports compatibility with B&K
Precision 9130.
Note: EXT1 is not used.
4.10 Return Meter
This option allows users to enable an internal fixed timer delay (5 seconds) for the power
supply to automatically switch from settings mode to meter mode. When enabled, it will
automatically switch to meter mode after 5 seconds. The backlight of the bu tton will
24
illuminate. In this state, pushing the button again to toggle back to settings mode will reset the
5-second timer again before the supply changes back to meter mode.
From the Config menu, select ReturnMeter and press the button.
1. There are two options that can be selected by using the keys or rotary knob.
Select OFF or Wait5Sec and press the button.
Reset
Note: Restoring the instrument to default values will change all current instrument settings
and paramet e rs back to their defa ult values.
All instrument settings can be reset back to their factory default values by doing the following:
From the Config menu, select Reset and press the button.
1. There are two options that can be selected by using the keys or rotary knob,
select NO to exit or YES to proceed and press the button.
Exit
This option will exit the Systems menu and return to the Power Menu….
From the Config menu level, select Exit and press the button.
4.11 System Menu
The system menu allows configuration of each channel’s maximum voltage limit and their
output timer.
To access this menu, press key and then press the button. Use the keys to
select CH1, CH2 or CH3 and press the button.
Use the keys to select MaxVolt, OutTimer or Exit, and then pres s the button.
MaxVolt
This allows the user to set the maximum voltag e that can be entered from the front
panel to avoid accidental damage to DUT (Dev ic e under test) connected to the power
supply. The maximum voltage can be entered using the numeric keypad, rotary knob or
the Up/Down arrow keys.
OutTimer
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This option will configure the internal output timer of the selected channel. The timer
can be set from 0.1 to 99999.9 seconds for each output. This will configure the power
supply to enable the output for the specified period of time. This value can be set using
the numeric keypad, rotary knob or the Up/Down arrow keys.
Exit
This option will exit the System menu and return to the Power Menu….
From the System menu level, select Exit and press the button.
4.12 Combined Series and Parallel Modes
This section describes how to configure the power su pply for series and parallel modes.
From the Power Menu … . Select Comb followed by the button. The display will show
four menu opti ons OFF Series Para T r ack. Each of these options are described below.
Figure 8 – Normal Wiring
OFF
This option is use d to disable series, parallel, or tracking modes.
1. From the Power Combine Set… menu select OFF and press the button.
2. The power supply will momentarily display Remove Successful! Before returning
to normal display.
Series Mode
The series mode doubles the available voltage range that can be supplied by combining
the voltage of channels 1 and 2. The following steps will describe the external wiring and
instrument setup required to use this feature.
1. Power down the unit and remove all wiring from the output terminals.
2. Verify all wiring is connected as illustrated below:
26
Figure 9 - Series M o de Wiring Diagram
3. Power on the unit and verify that the outputs are disabled (On/Off button
is not illuminated).
4. From the Power Combine Set… menu, select Series and press the button.
5. As CH1+Ch2 is blinking, press the button. The power supply will display
Series Successful! T he display should look like the one shown below. Series and
CH1+2 will be shown in the middle of the display.
Figure 10 - Display Series CH1+2
6. Set the voltage and current for CH1+2 and CH3.
7. Enable the outputs by pressing the button.
8. If the button is not illuminated, press the butto n o nc e to display
the measured voltage and current at the output.
Para (Parallel Mod e)
The Parallel mode will increase the available current range that can be supplied by
combining channels 1 and 2, 2 and 3, or All. The following steps will describe the
external wiring and menu options for combining channels CH1+CH2.
1. Power down the unit and remove all wiring from the output terminals.
27
Figure 11 – Parallel Mode Wiring Diagram
2. Verify all wiring is connected as illustrated.
3. Power on the unit and verify that the outputs are turned off the On/Off
button is not illuminated.
4. From the Power Combine Set… menu select Para and press the
button.
5. The following optio ns are available: CH1+CH2, CH1+CH3 or ALL.
6. Select CH1+CH2 and press the button. The power supply will display
Parallel Successful!
Figure 12 - CH1+CH2 Parallel Display
7. Set the voltage and current (max current will be the sum of the combined
channels).
8. Enable the outputs by pressing the ent er button, which will illuminate.
9. If the button is not illuminated, press the button once to
enable the me a s ure d volta ge an d c urrent at the output.
Note: For combining CH1+CH3 follow the s a me steps and select CH1 + CH3 for the optio n
in ste p 5.
Parallel ALL Mode
The following steps will describe the e xt ernal wiring and menu options for combining
ALL channels.
1. Power down the unit and remove all wiring from the output terminals.
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Figure 13 – Parallel Mode Wiring for All Channels
2. Verify all wiring is connected as illustrated.
3. Power on the unit and verify that the outputs are turned off (On/Off button not
illuminated).
4. From the Power Combine Set… menu, select Para and press the button.
5. The following optio ns are available: CH1+CH2, CH1+CH3 or ALL.
6. Select ALL and press the button. The power supply will display Parallel
Successful!
Figure 14 - All Channels Parallel Display
4.13 Tracking Mode
This function co n fi gures the channels for tracking mode. In tracking mode, when a voltage or
current parameter is changed, channels change according to the r atio betwee n channels.
1. From the Power Combine Set… menu, select Track and press the button.
2. Select one of the following: CH1+CH2, CH1+CH3 or ALL. Then, press the
button.
The power supply will display Track Set Successful! The symbol will appear on the
display to indicate tracking is enabled.
29
Note: Set the intended ratio before enabling tracking. The tracking is based on a ratio
Tracking function is disabled if 0 V or 0 A is set when tracking is enabled.
Model
9130B
9131B
9132B
Series CH1+CH2 Max Voltage
62 V
62 V
122 V
Parallel CH1+CH2 Max Voltage
31 V
31 V
62 V
Parallel CH2+CH3 Max Voltage
6 V
6 V
6 V
Parallel CH1+CH2+CH3 (All) Max Voltage
6 V
6 V
6 V
between CH1 and CH2 when the tracking is enabled. If the voltage is the same on both
channels when set, the two channels will track together based on a 1 to 1 ratio. For
example, if CH1 = 1 V and CH2 = 2 V a 1 to 2 ratio is set when tracking is enabled. With
this ratio, a voltage increase on CH1 from 1 to 2 volts will result in 4 volts on CH2.
4.14 Parameters in Series/Parallel Mode
Maximum voltage
When operating in Series mode, voltages between channels add. In Parallel mode, the voltage
equals the maximum voltage of the lowest voltage channel.
Table 4.1 - Maximum Voltage in Series/Parallel Modes
4.15 Over Temperature Protection
If the internal temperature of the power supply exceeds 176°F (80°C), the instrument will
protect itself by automatically turn the outp ut o f f. When this happens, the instrument beeper
will turn on and the display will indicate Over Temp. It is recommended that the power supply
be disconnected from the DUT and powered off to allow the supply to cool down to norm al
operati ng t e mperature.
4.16 Remote Sense
Remote sense can be used to compe nsate for voltage drops (up to 1 V) due to resistance from
test leads connected to your device under test (DUT), thus providing more accurate output
voltage. The power supply is initially set up to local sense mode by default. Refer to t he
following sections for details of local and remote sense setup.
Local Sense
By default, the power supply is set up for local sense with jumpers installed. This is determined
30
screws that are designed to tighten wires to the terminals. Doing so may create a
shock hazard under high voltage output conditions.
by the wire connections in the rear panel as shown bel ow.
Figure 15 - Jumpers installed for local sense
DO NOT disconnect the jumpers if remote sense is not used. Doing so will cause
erratic behavior and may damage the power supply under certain conditions.
Never connect any power source into any of the terminals at any time during
operation.
When output is enabled, DO NOT use your hands to touch the terminals or the
Remote Sense
To enable remote sense, follow the steps below for each channel:
1. Power OFF the supply and disconnect all loads and cables connected to it.
2. Use a small flat blade screwdriver to loosen and r em ove the jumper wires as shown
below.
Figure 16 - Sense jumpers removed
1. Connect wires to the DUT as illustrated in Figure 20. Make the connections between +
and S+ and S- and – for each channel that will be using remote sense. The S+ and S-
wires should be twisted as illustra ted to minimize noise.
31
unstable output.
Figure 17 - Remote sense connections
2. Connect the S+ to the Device Under Test (DUT)’s positive (+) terminal, and c onnect the S-
to the DUT’s negative (-) terminal.
3. Double check that the connections matches to Figure 20.
4. Power ON the supply and then configure and enable the output.
DO NOT at any time disconnect the wires from the S+ and S- terminals to the DUT
while output is enabled (ON). Doing so may damage the power supp ly a nd cause
5 Remote Operation
The power supply comes standard with RS232, USB, and GPIB remote interfaces. Users can
program the power supply by using SCPI (Standard Commands for Programmable Instruments)
commands over any one of the remote interfaces. This section will describe how to set up all of
the supported interfaces.
Note: The indicator will appear on display when the power supply is successfully connected
to a PC remotely through any remote interface. Keys on the front panel will be locked until the
instrumen t is in LOCAL mode. To return to L OCAL mode from the front panel, pr e s s . The
RS-232
For RS-232 connectivity, r efer to the diagram below f or pin out information. The RS-232 is
labeled in the rear panel and it is a female DB-9 interface.
indicator will disappear when the instrument is in LOCAL mode.
5.1 Interface Configuration
32
PIN
Description
1 - 2
Transmit Data
3
Receive Data
4 - 5
GND 6 - 7 -
8
-
9
-
Note: The RS-232 interface does not have a flow control mechanism. The programmer
allow for sufficient time to process commands is required.
1 2 3 4 5
6
7 8 9
Figure 18 - RS-232 Pin out
A straight pin-to-pin DB9 female to DB9 male serial cable is required f or using the RS-232
interface. Do not use a null modem or crossover DB9 serial cable.
Follow the steps below to configure the power supply for RS-232 operation:
1. From the Config menu, select Communication and press the button.
2. Press the keys until RS-232 is blinking and press the button.
The configurable options are:
3. Use the keys to select the option and the keys to change settings. When
all three options are set press the button.
4. If MUX mode has been selected specify the ADDR using the keypad or and press
the button.
should be aware of this limitation and allow sufficient command process time. If the
remote commands are sent too fast the power supply’s internal buffer may overrun
and cause a communication error. Therefore, adding a delay between commands to
5. All serial settings must match the settings configured on the PC in order for
33
communication to link succes sf ully.
USB
All models include a USBTMC-compliant interface that can be used for remote communication.
There are no settings in the menu system for USB configuration. The only requirement is a
USBTMC driver. We recommend using the drivers provided by National Instruments, which
come included with NI-VISA and can be downloaded here: http://www.ni.com/visa
1. From the Config menu, select Communication then press .
2. Use the keys to select the USB option then press . No other options
are required.
GPIB
Each model can be configured with a GPIB address from 1-31. To communicate via GPIB,
connect a GPIB cable to the GPIB interface on the rear panel, as illustrated below.
Follow the instructions below to select and configure the GPIB interface for remote operation.
1. From the Config menu, select Communication then press .
2. Use the keys to select the GPIB optio n then press .
3. Configure the GPIB Communication Address to which the power supply will be assigned.
Use the rotary numeric keypad keys or rotary knob to enter an Address value
from 1-31 then press .
4. Make sure the address assigned to the power supply unit matches the address the data
commands are being sent to.
6 Remote Commands
The instrument supports some SCPI commands and some instrument specific commands. These
commands enable a computer to remotely communicate and control the instrument over any of
the supported remote interfaces: USBTMC, RS-232, and GPIB.
Refer to the pr ogramming manual for details, which can be downloaded from
www.bkprecision.com.
34
7 Troubleshooting Guide
Below are some frequently asked questions and answers. Please check if any apply to your
power supply before contacting B&K Precision.
General
Q: I cannot power up the power supply.
- Check that the power cord is securely connected to the AC input and there is live power
from your electrical AC outlet.
- Verify that the AC power coming from the mains contains the correct voltage. The power
supply can accept a specific range of AC input voltages. Refer to section 2.1.
Q: How do I set up the supply to run in const a nt current mode?
- The supply is a CV/CC power supply that automatically crosses over from CV to CC upon a
load, which draws current at the current limit (ISET). Therefore, it is dependent on the
load. For example, if ISET is configured as 1 A, the load must draw 1 A before the supply
will go into CC mode.
Q: How come my display voltage is lower than the voltage I set?
- This is often because of the resistances from the test leads/wires connecte d between the
supply and the DUT (device under tes t) , which causes a drop in voltage. To minimize this
drop, use re mote sense terminals to compensate and output a more accurate voltage to
the DUT.
Q: I cannot set voltage at the maximum rating.
- This may be that the set voltage is outside of the voltage maxim um limit. Refer to the
MaxVolt section of the manual and set this value above the voltage that is being entered.
This can also be set to the limit of the power supplies range, which in effect turns off the
MaxVolt function.
Remote Control
Q: I am trying to send the commands over RS232, but it does not seem to respond.
- Check that you are sending ASCII strings that are terminated with a CR (carriage return) and
LF (linefeed) character.
- For RS-232, check that the baud rate, parity, data bits, stop bit, and flow control settings
match with the settings configured on both the software interfac e and the power supply
35
Model
9130B
9131B
9132B
Output Rating
Current
Power
195 W
375 W
375 W
Line Regulation
Voltage
≤ 0.01% + 3 mV
≤ 0.01% + 3 mV
≤ 0.01% + 3 mV
Current
≤ 0.1% + 3 mA
≤ 0.1% + 3 mA
≤ 0.1% + 3 mA
Load Regulation
Voltage
≤ 0.01% + 3 mV
≤ 0.01% + 3 mV
≤ 0.01% + 3 mV
Current
≤ 0.1% + 3 mA
≤ 0.1% + 3 mA
≤ 0.1% + 3 mA
Ripple and Noise
Voltage
≤ 1 mVrms
≤ 1 mVrms
≤ 1 mVrms
Programming Resolution
Voltage
1 mV
1 mV
1 mV
Current
1 mA
1 mA
1 mA
Readback Resolution
Voltage
1 mV
1 mV
1 mV
Current
1 mA
1 mA
1 mA
8 Specifications
Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes
over an ambient temperature range of 23 °C ± 5 °C. Specifications are subject to change
without notice.
Environmental Conditions:
This power supply is designed for indoor use and operation with maximum relative humidity of
80%.
Voltage
Current ≤ 3 mArms
Temperature Coefficient (0 °C to 40 °C) ± (% output + offset) (typical)
(W×H×D)
Weight 16.98 lbs. (7.7 kg) 33.07 lbs. (15 kg)
To ensure the most current version of this manual, please visit www.bkprecision.com.
8.45” x 3.47” x 13.96”
(214.5 x 88.2 x 354.6
mm)
USB (USBTMC-compliant), GPIB, RS-232
32 °F to 104 °F (0 °C to 40 °C)
-4 °F to 158 °F (-20 °C to 70 °C)
8.45” x 3.47” x 17.52” (214.5 x 88.2 x 445 mm)
9 Calibration
We recommend a calibration interval of once per year to ensure that the power supply meets
specifications.
10 SERVICE INFORMATION
Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #.
Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the
performance problem and return any leads, probes, connectors and accessories that you are using with the device.
Non-Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA
#. Return the product in the original packaging to the address below. Clearly state on the RMA the performance probl em and
return any leads, probes, connectors and accessories that you are using with the device. Customers not on an open account
must include payment in the form of a money order or credit card. For the most current repair charges please refer to the
service and support sec tion on our website.
Return all merchandise to B&K Precision Corp. with prepai d shipping. The flat-rate repair cha rge for Non-Warranty Service does
not include return shipping. Return shipping to locations in North America is included for Warranty Service. For overnight
shipments and non-North American shipping fees please contact B&K Precision Corp.
B&K Precision Corp.
22820 Savi Ranch Parkway
Yorba Linda, CA 92887
www.bkprecision.com
714-921-9095
Include with the returned instrument your complete return shipping address, contact name, phone number and description
of problem.
11 LIMITED THREE-YEAR WARRANTY
B&K Precision Corp. warrants to t he original purchaser that its products and the component parts thereof, will be free from
defects in workmanship and materials for a period of three years from date of purchase.
B&K Precision Corp. w ill, without charge, repair o r replace, at its option, defective product or component parts. Returned
product must be accompanied by proof of the purchase date in the form of a sales receipt.
To help us better serve you, please co mplete the warranty registration for your new instrument via our website
www.bkprecision.com
Exclusions: This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized
alterations or repairs. The warranty is void if the serial number is altered, defaced or removed.
B&K Precision Corp. shall not be liable for any consequential damages, including without limitation damages resulting from loss
of use. Some states do not allow limitations of incidental or consequential damages. So the above limitation or exclusion may
not apply to you.
This warranty gives you specific rights and you may have other rights, which vary from state-to-state.