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Multi-Range DC Power Supplies
User Manual
9240 Series
2
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 specied 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 denes 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 denes 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 specied in this manual
for this instrument.
3
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
115 V RMS or 230 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 ammable atmosphere.
Do not operate the instrument in the presence of ammable gases or vapors, fumes, or nely-divided particulates.
The instrument is designed to be used in oce-type indoor environments. Do not operate the instrument
• In the presence of noxious, corrosive, or ammable fumes, gases, vapors, chemicals, or nely-divided particulates.
• In relative humidity conditions outside the instrument’s specications.
• In environments where there is a danger of any liquid being spilled on the instrument or where any liquid can condense
on the instrument.
• In air temperatures exceeding the specied operating temperatures.
• In atmospheric pressures outside the specied altitude limits or where the surrounding gas is not air.
4
• In environments with restricted cooling air ow, even if the air temperatures are within specications.
• 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 20% to 80% relative humidity, with no condensation allowed. Measurements made by this instrument
may be outside specications if the instrument is used in non-oce-type environments. Such environments may include
rapid temperature or humidity changes, sunlight, vibration and/or mechanical shocks, acoustic noise, electrical noise,
strong electric elds, or strong magnetic elds.
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 qualied 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 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 rst 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.
5
Fuse replacement must be done by qualied 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 specied 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 re. Failure
to use the specied 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.
For continued safe use of the instrument
• Do not place heavy objects on the instrument.
• Do not obstruct cooling air ow 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.
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.
Safety Symbols
Symbol Description
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in death or serious injury
Indicates a hazardous situation which, if not avoided, will result in minor or moderate injury
Refer to the text near the symbol.
Electric Shock hazard
Alternating current (AC)
Chassis ground
Earth ground
Indicates the In position of the power switch when instrument is ON.
6
Indicates the Out position of the power switch when instrument is OFF.
Indicates practices not related to physical injury.
Table 1 Safety Symbols
Contents
1 Introduction 10
1.1 Product Overview 10
1.2 Contents 10
1.3 Features 11
1.4 Dimensions 11
1.5 Rackmount Installation 12
1.6 Front Panel 13
1.7 Display 14
1.8 Rear Panel 15
2 Getting Started 16
2.1 Input Power and Fuse Requirements 16
2.2 Fuse Requirements 17
2.3 Check or Replace Fuse 17
2.4 Preliminary Check 19
2.5 Self test Errors 20
3 Basic Front Panel Operation 21
3.1 Keys 21
3.1.1 Function Keys 21
3.1.2 Soft Keys 21
3.1.3 Numeric Keys 21
3.1.4 Output Control 22
3.2 Display 23
3.3 Check Model and Firmware Version 25
3.4 Setting Voltage and Current 25
4 Output Conguration 26
4.1 Protection Settings 26
4.1.1 Over Voltage Protection (OVP) 26
4.1.2 Over Current Protection (OCP) 26
4.1.3 Over Temperature Protection & Over Temperature Warning (OTP & OTW) 26
4.1.4 Vmax/Vmin 26
4.1.5 Protection Clear 27
4.2 Output Settings 27
4.2.1 Remote Sense 27
4.2.2 Output Timer 28
4.2.3 Voltage Slew 28
4.2.4 Current Slew 28
4.2.5 On/O Delay 29
5 List Mode 30
5.1 List Setup 30
5.2 Edit List 32
5.2.1 Load/Save List 32
5.2.1 List Number 33
5.2.2 Next 33
5.2.3 Repeat 34
5.2.4 Steps 34
5.3 List Run 36
8
6 Battery Charge Function 38
6.1 Charge Test 38
6.1.1 Start/Stop Test 38
6.1.2 Save/Load Prole 38
6.1.3 V Full 39
6.1.4 I Limit 39
6.1.5 I End 40
6.1.6 End Delay 40
6.2 Battery Test Settings 40
6.2.1 Sampling Time 40
6.2.2 A-h On/O 40
6.2.3 W-h On/O 40
6.2.4 Trigger Source 41
6.2.5 File Path 41
6.2.6 T. Stamp Filename 42
6.3 Fail Safe Settings 42
6.3.1 Fail State 42
6.3.2 Stop Time 42
6.3.3 Stop Ah 43
6.3.4 Stop Wh 43
6.3.5 Over Voltage Protection (OVP) 43
7 Data Logger 44
7.1 Using the Data Logger Function 44
7.2 Parameters 45
7.2.1 Sampling Interval 45
7.2.2 File Path 45
7.2.3 T. Stamp Filename 45
7.2.4 Log Data 46
7.2.5 Status Code 47
7.2.6 Trigger Source 47
7.2.7 Datalog Start/Stop 47
8 Utilities Menu 48
8.1 User Settings 48
8.1.1 Key Lock Output 48
8.1.2 Beep Sound 48
8.1.3 Date 48
8.1.4 Time 49
8.1.5 Screen Intensity 49
8.1.6 Language 49
8.2 Remote Interface 49
8.2.1 USB Settings 50
8.2.2 LAN 51
8.3 GPIB (optional) 56
8.4 Digital I/O 57
8.4.1 Functions 57
8.4.1 Polarity 58
8.4.1 Inhibit Mode 59
8.5 Test/Admin 60
8.5.1 Self Test 60
8.5.2 Security 60
8.6 Error Log 62
8.7 Help 63
8.8 On Screen Help 63
9 Key Lock 64
9
10 Save/Recall 65
10.1 Save the Output Settings 65
10.2 Recall the Instrument’s Settings 66
10.3 Power-On Settings 67
10.4 Screenshot 68
11 Calibration Adjustment Procedure 69
11.1 Voltage Calibration Adjustment 70
11.2 Current Calibration Adjustment 71
11.3 OVP Calibration Adjustment 72
11.4 OCP Calibration Adjustment 73
11.5 RTC Calibration Adjustment 74
12 Performance Verication 75
13 Specications 78
14 Service Information 81
15 LIMITED THREE-YEAR WARRANTY 82
Introduction
1.1 Product Overview
9240: 32 V / 8 A / 120 W 9241: 60 V / 4 A / 120 W
Figure 1.1 Front View
The 9240 series multi-range DC power supplies combine industry-leading power density and performance with an extensive
set of features in a compact 2U form factor.
The series produces 120/200 W of clean power with exceptionally low ripple and noise characteristics. An advanced list
mode programming, data logging, battery charging and protection features make these power supplies suitable for a wide
range of benchtop or test system applications.
Model 9240 9241 9242
Voltage Range 0 to 32 V 0 to 60 V 0 to 60 V
Current Range 0 to 8 A 0 to 4 A 0 to 10 A
Maximum Power 120 W 200 W
Table 1.1 Models
1.2 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 9240, 9241, or 9242 Power Supply
• 1 x AC Power Cord
• 1 x Certicate of Calibration
• 1 x Test Report
Note:
Ensure the presence of all the items above. Contact the distributor or B&K Precision if anything is missing.
Introduction 11
1.3 Features
• Compact 2U half-rack form factor
• Multi-ranging operation delivers rated power at various voltage/current combinations
• Advanced list mode programming with internal storage for up to 10 list mode programs and list sequencing capabilities
• Digital I/O block oers external triggering, voltage fault and remote inhibit capabilities
• Battery Charge Function
• Overvoltage protcetion (OVP), overcurrent (OCP), over temperature (OTP), and includes a key-lock function
• NISPOM-compliant sanitization procedure to securely erase and return the instrument to factory settings
• USB (USBTMC-compliant) and LXI compliant LAN interfaces standard, GPIB optional
• LabVIEW
𝑇 𝑀
, IVI-C, and IVI.NET drivers provided
1.4 Dimensions
The 9240 Series dimensions are approximately:
213 mm (8.4 in) x 88.2 mm (3.47 in) x 330 mm (13 in) (W x H x D).
Figure 1.2 Dimensions
Introduction 12
1.5 Rackmount Installation
The 9240 Series is compatible with the optional 19-inch rackmount kit model RK2US. The RK2US installation instructions
can be downloaded from bkprecision.com
Figure 1.3 Dimensions
1.6 Front Panel
The front panel interface allows for control of the unit.
Introduction 13
Figure 1.4 Front Panel
Item Name
1 Power Button Power the instrument ON or OFF
2 Function Keys See section 3.1.1 for details.
3 USB Host Port USB port used to connect ash drives.
4 Display Visual presentation of the device function and measurements.
5 Numeric Keypad Used to enter precise values.
6 Rotary Knob Used to navigate menues or congure parameters.
7 Output/Sense
8 Soft Keys Used to invoke any functions displayed above them.
Description
Isolated and oating output channel supporting sheathed banana plugs and
spade lug type connectors
Table 1.2 Front Panel
1.7 Display
Introduction 14
Icon
Description
The output is disabled.
The output is enabled and in constant voltage mode
The output is enabled and in constant current mode
Data loggin is enabled but not recording.
Data logging is enabled and recording.
The instrument is connected to a network.
An issue occured when attempting to connect to a network.
The instrument is not connected to a network.
All keys excluding softkey F6 are locked.
Over voltage protection was triggered.
Over current protection was triggered.
Over temperature protection was triggered.
The instrument is set to remote mode
Remote sense is enabled.
Remote
Table 1.3 Display Icons
1.8 Rear Panel
Introduction 15
Figure 1.5 Rear Panel
Item Name
1 Output/Sense
2 Kensington security slot
3 GPIB Interface (Optional) Connect a GPIB cable to remotely control the unit `
4 Digital I/O Send or receive a signal to or from an external device.
5 USB interface Connect a USB type B to type A to remotely control the unit.
6 LAN interface
7 Chassis ground
8
AC power input
& fuse box
Description
Rear panel output with remote sense. Internal relays switch between local and
remote sensing.
Lock the instrument to a xed location using the security lock via the lock hole.
Lock is not included.
Connect a Cat 5/6 Ethernet straight-through patch cable to remotely control
the unit.
Provides a zero potential voltage reference and a dissipation point for interference, transient voltages and static.
Houses the fuse as well as the AC input.
Table 1.4 Rear Panel
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 universal AC input that accepts line voltage input within:
9240 9241 9242
AC Line Input 100 - 240 VAC±10%, 47 to 63 Hz
AC Line Phase Single Phase
Maximum Rated
Input Power
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 sucient circuit capacity for the power supply. Once veried, connect the cable rmly.
The included AC power cord is safety certied 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.
200 VA 300 VA
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.
Getting Started 17
2.2 Fuse Requirements
An AC input fuse is necessary when powering the instrument. The below table shows the fuse required for all models.
Model Fuse Specication
9240 3.15 AT, 250 V
9241 3.15 AT, 250 V
9242 4 AT, 250 V
2.3 Check or Replace Fuse
For safety, no power should be applied to the instrument while changing line voltage
operation. Disconnect all cables connected to the instrument before proceeding.
– Locate the fuse box next to the AC input connector in the rear panel. (See gure 1.5)
– Insert a small athead screwdriver into the fuse box slit to pull and slide out the fuse box as indicated below.
– Check and replace fuse if necessary. (See gure 2.1)
Figure 2.1 Fuse Removal
Any disassembling of the case or changing the fuse not performed by an
authorized service technician will void the warranty of the instrument
SHOCK HAZARD:
Hazardous voltages may exist at the outputs and the load connections when using a power
supply with a rated output greater than 60 V. 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 greater than to the maximum output voltage of the power supply.
Getting Started 18
The rear output terminals can accept wire sizes AWG 24 to AWG 12 (See Table 2.1).However, we recommend using 12
AWG if current output is between 5 to 10 A. Refer to Table 2 below to determine the proper wire size.
Wire Gauge Rating
AWG
Imax (A)
mΩ/meter
Output Isolation
The output terminals of the 9240 Series are isolated from earth ground. An earth ground terminal is provided on the
front panel for convenience. Any output terminal may be grounded. However, output terminals must not exceed ±200
VDC.
10 12 14 16 18 20 22 24 26 28
40 25 20 13 10 7 5 3.5 2.5 1.7
3.3 5.2 8.3 13.2 21 33.5 52.8 84.3 133.9 212.9
Table 2.1 Wire Gauge Rating
SHOCK HAZARD
Floating voltage must not exceed 200 VDC.
2.4 Preliminary Check
Complete the following steps to verify the Power supply is ready for use.
Getting Started 19
Verify AC
Input Voltage
Connect Power
& Self-Test
After Power on, during the self-test, the following should be displayed:
Verify and check to make sure proper AC voltages are available to power the instrument.
The AC voltage range must meet the acceptable specication as explained in section “2.1
Input Power and Fuse Requirements”.
Connect AC power cord to the AC receptacle in the rear panel and press the power button.
It will run through a self-test procedure initially before booting to the main screen.
Figure 2.2 Initializing
After the system scan is complete the LCD will display as shown in Figure ??
Figure 2.3 Home Display
Note:
The initial power on state is based on the settings set on Power-ON
2.5 Self test Errors
The following errors will be displayed if the self-test did not complete successfully:
Error Message Description
EEPROM Fail The internal EEPROM is corrupted or damaged.
System Lost Last system settings within the EEPROM are lost.
Module Fail Channel response failure.
Cal Lost Calibration data within the EEPROM is lost.
Getting Started 20
Fact Loss Factory calibration data is lost.
Model Lost Channel initialization failed.
Table 2.2 Error Message
If any of these errors occur, please contact B&K Precision.
Basic Front Panel Operation
At power-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.
3.1 Keys
3.1.1 Function Keys
There are three main keys:
Navigates the 2 available screens.
When navigating any menu the key
will return to the main display.
2 available displays:
– Main page:
Overview of the output.
– Live Output Monitoring:
Oscilloscope like overview of the
measured output parameters.
Opens up a menu giving access to
various save and load
options, regardless of the
current display of the screen.
Opens the main menu bar. Pressing
Utility will navigate to the main menu
bar if any menu bar is already open.
3.1.2 Soft Keys
The unit has six soft keys, which are located beneath the screen. Each key selects the corresponding function. Functions
will vary depending on the current menu or display.
Figure 3.1 Soft Keys
3.1.3 Numeric Keys
The numeric keys allow the conguration of various parameters. Using the numeric keys provides a fast and precise
input. The key can be found with the numeric keys. Pressing enter will assign the selected value to the desired
parameter.
Basic Front Panel Operation 22
Figure 3.2 Numeric Keys
3.1.4 Output Control
The button toggles the output On/O. When output is enabled, the ON button will turn green and the
supply will display the state of the channel.
represents constant current mode. represents constant voltage mode. When output is disabled, the
channel state will display .
Basic Front Panel Operation 23
3.2 Display
The power supplies have two main display modes: output overview and live output monitoring display. Press the
button to cycle between the dierent display modes or to return home when viewing any other menu.
Output Overview
Provides information of the outputs’:
• State
• Run time
• Voltage
• Current
• Power
• Vmax/Vmin
• OVP/OCP
• OnDelay/ODelay
Allows conguration of:
• Vset
• Iset
• Vmax/Vmin
• OVP/OCP
• OnDelay/ODelay
Figure 3.3 Output Overview Display
Basic Front Panel Operation 24
Live Output Monitoring
The live output monitoring display shows metered output voltage and current over time.
It is always active and will continuously plot and overwrite the oldest value when the display graph is full.
Figure 3.4 Live Output Monitoring Display
The Live output display can be congured by setting the: Voltage, Current, and Time Scale.
Voltage Scale
The voltage scale of each output can be set from 10 mV/Div up to 20 V/Div.
1. While in Live Output Display use the softkeys to select Voltage Scale.
2. Select a channel to congure.
3. Use the rotary knob to navigate through the available scales.
Current Scale
The current scale of each output can be set from 10 mA/Div up to 3 A/Div.
1. While in Live Output Display use the softkeys to select Current Scale.
2. Select a channel to congure.
3. Use the rotary knob to navigate through the available scales.
Time Scale
The time scale of each output can be set from 1 s/Div up to 10 min/Div.
1. While in Live Output Display use the softkeys to select Time Scale.
2. Use the rotary knob to navigate through the available scales.
Basic Front Panel Operation 25
Voltage Oset
A voltage oset can be added.
The oset can be set from 0 V up to 32.2 V on the 9240 and 0 V up to 60.6 V on the 9241/9242.
1. While in Live Output Display use the softkeys to select Voltage Oset.
2. Select a channel to congure.
3. Use the rotary knob to navigate through the available scales.
Current Oset
A current oset can be added to each output.
The oset can be set from 0 A up to 8.08 A on the 92400 A, from 0 to 4.04 A on the 9241, and 0 to 10.1 A on the
9242.
1. While in Live Output Display use the softkeys to select Current Oset.
2. Select a channel to congure.
3. Use the rotary knob to navigate through the available scales.
3.3 Check Model and Firmware Version
The rmware version, model, and serial number can be veried by entering the security settings. Press button
then use the soft keys to select Utilities > Help > System Info to view model and rmware information.
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 or the
rotary knob.
1. Using the keypad: Use the soft keys to select the channel VSET or ISET settings beneath channel view on
the display. Then use the numeric keypad to input the voltage or current value then press to conrm.
2. Using the rotary knob: Use the soft keys to select the channel VSET or ISET settings beneath the channel
view on display. Then turn the knob clockwise to increment or counter-clockwise to decrement the value. Use the
below the rotary knob to move the cursor. Press the knob in to conrm.
Output Conguration
4.1 Protection Settings
4.1.1 Over Voltage Protection (OVP)
Over voltage protection is always enabled, however the user can set the OVP voltage limits.
1. Press the button then use the soft keys to select Output cong > Protection settings
2. Select OVP Limit.
3. Use the numeric keypad or rotary knob to set the desired OVP limit.
When OVP protection is tripped during operation, the output will be de-rated to 0 V and the icon
will appear between the wattage and Vset.
4.1.2 Over Current Protection (OCP)
Over current protection state and limit can be set in the protection settings.
1. Press the button then use the soft keys to select Output cong > Protection settings
2. Press OCP State to toggle the over current protection on or o.
3. Select OCP Limit and use the numeric keypad or rotary knob to set limit value.
When OCP protection is tripped during operation, the output will be de-rated to 0 V and the icon
will appear between the wattage and Vset.
4.1.3 Over Temperature Protection & Over Temperature Warning (OTP & OTW)
The state and limit of both OTP & OTW cannot be set or congured in the protection settings. OTP is set to 85 °C
and OTW is set to 75 °C. If the temperature reaches either OTW, the OT icon will blink on the display with a low period
beep sound. If temperature reaches OTP the OT icon will show on the display and the output will turn o. The output
will not be allowed to turn on until the temperature drops to 75 °C.
Fan Speed Control
2 A 0%
2 to 5 A 25%
5 A 100%
Table 4.1 Fan Control
4.1.4 Vmax/Vmin
Congure the maximum or minimum voltage value the user can set from the protection
settings.
1. Press the button then use the soft keys to select Output cong > Protection settings
2. Select Vmax or Vmin and set a maximum or minimum value using the numeric keypad or rotary knob.
Output Conguration 27
4.1.5 Protection Clear
Protections are cleared from the output conguration settings as shown in the following steps.
1. Press the button then use the soft key to select Output cong > Protection Clear.
2. Press the soft key to clear the triggered protections.
4.2 Output Settings
4.2.1 Remote Sense
Remote sense can be used to compensate 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. When remote sense is enabled, the positive
(+S) and positive lead (+) of the DC output are connected to the positive (+) of the load. Similarly, the negative sense
(-S) and negative lead (-) of the DC output are connected to the negative (-) end of the load shown in the gures below.
The sense terminals and output terminals are shorted by the shorting bar provided.
Do not 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 screws that are designed to tighten wires to the terminals. Doing
so may create a shock hazard under high voltage output conditions.
Output Conguration 28
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 supply and cause unstable output.
Remote sense is disabled by default, to enable remote sense:
1. Press the button then use the soft key to select Output cong > Output Settings.
2. Press Remote Sense using the soft key to enable remote sense.
4.2.2 Output Timer
An output timer can be set. When the output timer is enabled, an hourglass icon will be displayed next to the output
state icon. The timer countdown will begin when the output is enabled. The output is disabled when the countdown
reaches 0. The timer can be set from 1 second to 99 hours 59 minutes and 59 seconds.
Follow the steps below to enable and set the output timer:
1. Press the button then use the soft key to select Output cong > Output Settings.
2. Push Timer State to enable the timer.
3. Select Timer Setting and set a desired time for the output to be enabled using the numeric keypad or rotary knob.
The timer format is: HH:MM:SS. Use the keys to move the cursor.
4.2.3 Voltage Slew
The rising voltage slew rate can be set in volts per second. The voltage slew range can be set from 0.001 V/s to
3200.0 V/s.
1. Press the button then use the soft key to select Output cong > Output Settings.
2. Select Voltage Slew and use the numeric keypad or rotary knob to adjust the slew rate value. Press to conrm input.
4.2.4 Current Slew
The rising current slew rate can be set in amps per second. The current slew range can be set from 1 A/s to 800
A/s.
1. Press the button then use the soft key to select Output cong > Output Settings.
2. Select Next Pg. > Current Slew and use the numeric keypad or rotary knob to adjust the slew rate value.
Press to conrm input.
Output Conguration 29
4.2.5 On/O Delay
A channel on or o delay in seconds can be applied to any channel. These delays can be set from
0.001 s to 3600.0 s.
1. Press the
2. Select Next Pg. > On Delay to set an on delay or O Delay to set an o delay.
3. Use the numeric keypad or rotary knob to adjust the delay value. Press to conrm input.
button then use the soft key to select Output cong > Output Settings.
List Mode
The 9240 series is capable of storing up to 10 programmable lists in the internal memory. Each list can have up to 100
congurable steps.
If all ten list numbers are taken, a list can also be saved to a USB drive. Lists can be loaded from a USB drive, allowing
for a larger collection of programmed lists.
5.1 List Setup
Press the button then use the soft key to select List/Battery > List Setup.
Figure 5.1 List Setup
Use the softkeys to set the following parameters.
List State:
Toggle list state On/O for the selected channel.
List Number:
Select a list program from the memory to run on the channel.
Use the numeric keypad or rotary knob to select list number.
Press to assign the list to a channel.
List Mode 31
Pace:
Set the pace in which steps are executed.
a. Dwell: The next step outputs once the dwell time elapsed.
b. Trigger: After the dwell time elapsed, wait for a trigger before outputting the next step.
Trigger Source
Set the trigger source.
a. Manual: Select to use a manual trigger. The Trigger softkeywill be available once List State is on and exit out of
the menu to the main display. Press it to manually trigger the list program.If the step dwell time has not elapsed,
then Trigger will not have a white background. When dwell timeelapses,Trigger background color will turn white to
indicate the trigger is ready.
Figure 5.2 Waiting for Trigger
b. Digital IO: Select to use the digital I/O pins to receive a trigger. To assign trigger input function to a pin see 8.4.1.
c. Remote: Select to receive a trigger from the remote interface.
After List
Sets the voltage and current settings at the end of the list program.
a. DC: Returns to the last DC output voltage and current setting prior to enabling list mode.
b. Last: Retains the last step voltage and current setting after the list program ends.
List Mode 32
Note:
If the list is aborted, the output will return to the last set voltage and current output values before the list began, even if
After List is set to Last.
5.2 Edit List
Press the button then use the soft key to select List Setup > Edit List.
Use the softkeys to set the following parameters.
5.2.1 Load/Save List
Save to USB
Save the selected list program to a USB.
Use the rotary knob to navigate through the le paths of the USB. Use the button to expand folders.
Once the desired location has been found select Save by pressing the softkey furthest to the left.
Figure 5.3 Save to USB
List Mode 33
Load from USB
Load a previously saved list from a USB to selected List Number.
Use the rotary knob to navigate through the le paths of the USB. Use the button to expand folders.
Once the desired location has been found select Load by pressing the softkey furthest to the left.
Figure 5.4 Load from USB
Note:
The list must be saved/overwritten at the selected list number location before it is able to be assigned.
5.2.1 List Number
Select a list program from the internal memory.
Use the numeric keypad or rotary knob to select a list (0 to 9).
Press the
5.2.2 Next
Set the next list program to run after the current list elapse.
a. To make a list run continuously and indenitely, set Next to the same number as List Number.
b. To run dierent list sequences continuously, set Next to each other.
button to assign the list.
Example
Set Next on List 1 to 2.
Set Next on List 2 to 1.
List Mode 34
5.2.3 Repeat
To repeat a list, set Repeat using the numeric keypad or rotary knob and press .
5.2.4 Steps
Add, delete, clear all, or edit steps.
Add Step
Use the softkeys to add a step to the list. The step added will be a duplication of the step selected before pressing Add
Step.
To select a step to duplicate, use the rotary knob to navigate the available steps. If the list is new, only one default step
will be available. Pressing Add Step will duplicate the default step.
Figure 5.5 Default Step In New List
Delete Step
Delete the step selected before pressing Delete Step.
Use the rotary knob to navigate between each step.
Clear All
Clear all list parameters. See g 5.5
Edit Step
Use the rotary knob to navigate the steps available.(select a row)
To edit parameters of the step, use the keys.(selects a column)
See gure 5.6 for the parameter each row edits.
Press to toggle enable/disable BOST and/or EOST.
List Mode 35
Step Parameters
Voltage Set the Vset value.
Current Set the Iset value.
BOST
EOST
Dwell
Figure 5.6 List Conguration
Description
Press the knob or the button to enable/disable a trigger-out signal at the beginning of
the step (BOST).
Press the knob or the button to enable/disable a trigger-out signal at the end of the
step (EOST).
Sets the dwell time of the selected step.
Table 5.1 Step Parameters
5.3 List Run
Before running a list its parameters must be congured.
1. Congure the parameters of each step. See 5.2
2. Set the settings of the channel which will output the list. See 5.1
a. Enable List State on desired channel.
b. Assign a List Number to the channel.
c. Select Pace { Dwell or Trigger}.
d. Select Trigger Source { Manual, Digital IO, or Remote }.
e. Select After List output {DC or Last}.
List Mode 36
3. After conguring the list and channel parameters press
– List Start will be inserted as the F1 softkey option. All other option in the home page will move one softkey to
the right. List Start if List State was enabled.
Figure 5.7 List State Disabled
4. Select List start to start the list.
– Once the list begins List Start will change to Abort List
to return to the main page.
Figure 5.8 List State Enabled CH 1
List Mode 37
– The interaction with the list will vary depending on the chosen Pace. See 5.1
5. Select List Abort to end the list before all steps elapse. If the all steps elapse the list will end and the output will be
set to chosen After List parameter.
– If After List is set to DC the output will output the Vset and Iset values.
– If After List is set to Last the output will output the values of the last step in the list.
Note:
While the list is running the user can adjust the current step output by setting Vset or Iset on the main display. Doing so
will immediately change the value of the ongoing output. However, the set value will not be saved to the list. Once the
dwell time of the step has elapsed the list will continue and output the next step.
If Trigger source is set to manual,Vset/Iset will be available in the F3 softkey as shown in gure 5.9. The rotary knob
and numeric keypad can be used to adjust the selected value.Vset/Iset will be available as shown in gure 5.9.
Figure 5.9 Single Channel Display Vset/Iset
Battery Charge Function
The Battery Charge Function can be congured to set the desrired charging parameters.
6.1 Charge Test
Press the button then use the soft key to select List/Battery > Batt Test Setup > Charge Test.
Figure 6.1 List Setup
Use the softkeys to select one of the available functions/parameters.
6.1.1 Start/Stop Test
Press the button then use the soft key to select List Battery > Batt Test Setup > Charge Test > Start/Stop
Test.
Press the corresponding softkey to Start/Stop the battery test. The battery test will not begin charging until the output
is enabled.
6.1.2 Save/Load Prole
Save the set parameters of the prole to a ashdrive or load a previously saved prole from the ash drive to the 9240.
The unit does not have internal memory to store more than one prole.
Press the button then use the soft key to select List Battery > Batt Test Setup > Charge Test > Save/Load
Prole.
Battery Charge Function 39
– Use the corresponding softkey to select the Save to USB or Load from USB function.
– Use the rotary knob and the key to navigate through the le path of the USB. Once the desired location has
been found select Save or Load by pressing the softkey furthest to the left.
If no USB drive is inserted the following prompt will be displayed.
Figure 6.2 List Setup
6.1.3 V Full
Set a voltage value to be interpertrated as the battery being fully charged. We recommend to set this value to 90% of
the battery full capacity.
Press the
– Use the numeric keypad or the rotary knob to enter or adjust the V Full value.
– Press the
button then use the soft key to select List Battery > Batt Test Setup > Charge Test > V-Full.
to set the V Full value.
6.1.4 I Limit
Set a current limit value limiting the curring being supplied to the battery.
Press the button then use the soft key to select List Battery > Batt Test Setup > Charge Test > I Limit.
– Use the numeric keypad or the rotary knob to enter or adjust the I Limit value.
– Press the
to set the I Limit value.
Battery Charge Function 40
6.1.5 I End
Set a current limit value to interprertrated as the stop charging value of the battery.
– Use the numeric keypad or the rotary knob to enter or adjust the I End value.
– Press the to set the I End value.
6.1.6 End Delay
Set a delay to the battery charging function once the desired parameters have been readched.
Press the button then use the soft key to select List Battery > Batt Test Setup > Charge Test > End
Delay.
– Use the numeric keypad or the rotary knob to enter or adjust the end delay time.
– Press the
to set the end delay time.
6.2 Battery Test Settings
6.2.1 Sampling Time
Set a time duration for the charging function.
Press the button then use the soft key to select List Battery > Batt Test Setup > Batt Test Settings >
Sampling Time.
Use the numeric keypad or rotary motor to select the sampling time. Press to assign the selected value. (.5s to
300s)
6.2.2 A-h On/O
Press the button then use the soft key to select List Battery > Batt Test Setup > Batt Test Settings >
A-h On/O.
Press the corresponding softkey to toggle the recording of AH.
6.2.3 W-h On/O
Press the button then use the soft key to select List Battery > Batt Test Setup > Batt Test Settings >
W-h On/O
Press the corresponding softkey to toggle the recording of WH.
Battery Charge Function 41
6.2.4 Trigger Source
Press the button then use the soft key to select List/Battery > Batt Test Setup > Batt Test Settings >
Trigger Source.
Datalog can be triggered in three ways: Manual, Digital IO, and Remote.
• Manual: Select to use manual trigger. The trigger softkey will be available as Datalog Start/Stop. See section 7.2.7
• Digital IO: Select to use the digital I/O pins to receive a trigger. To assign a function to a pin see section8.4.1.
• Remote: Select to receive a trigger from a remote interface.
Note:
For Digital IO and Remote the rst trigger will turn Data log on. A second trigger will begin
data recording.
will be displayed on the top right when data is being logged. See 7.2.7
6.2.5 File Path
Press the button then use the soft key to select List/Battery > Batt Test Setup > Batt Test Settings >
Next Pg. > File Path.
Using the rotary knob and the key to navigate through the le path of the USB. Once the desired location has
been found select save by pressing the softkey furthest to the left.
Verify that the correct path was chosen in the Data Logger menu.
Figure 6.3 File Path Selected
Battery Charge Function 42
6.2.6 T. Stamp Filename
Press the button then use the soft key to select List/Battery > Batt Test Setup > Batt Test Settings >
Next Pg. > T. Stamp File.
Press the corresponding softkey to toggle stamp lename.
Example Enabled 9240_log_20201017002307
Disabled 9240_log
Figure 6.4 Enabled
and Disabled T. Stamp
6.3 Fail Safe Settings
Enable/Disable and edit the safety parameters of the Battery Charging Function
6.3.1 Fail State
Press the button then use the soft key to select List/Battery > Batt Test Setup > Fail Safe Settings >
Fail State.
Press the corresponding softkey to toggel the battery fail state Enable/Disable.
6.3.2 Stop Time
Set a stop time for the charge function.
Press the
Stop Time.
– Use the numeric keypad or rotary knob to set the desired stop time.
– Use the
button then use the soft key to select List/Battery > Batt Test Setup > Fail Safe Settings >
keys to nagivate between hr:min:sec.
– Press the to set the stop time.
Upon starting the Battery Charge function and turning on the output a timer will be set. The output will turn o once
the timer reaches 0 or when another stop parameter is reached.
Battery Charge Function 43
6.3.3 Stop Ah
Set a Ah stop time.
Press the button then use the soft key to select List/Battery > Batt Test Setup > Fail Safe Settings >
Stop Ah.
– Use the numeric keypad or rotary knob to set the desired stop time. (0 to 9999.99 s)
– Press the
Upon starting the Battery Charge function and turning on the output a timer will be set. The output will turn o once
the timer reaches 0 or when another stop parameter is reached.
to set the stop time.
6.3.4 Stop Wh
Set a Wh stop time.
Press the button then use the soft key to select List/Battery > Batt Test Setup > Fail Safe Settings >
Stop Wh.
– Use the numeric keypad or rotary knob to set the desired stop time. (0 to 9999.99 s)
– Press the
Upon starting the Battery Charge function and turning on the output a timer will be set. The output will turn o once
the timer reaches 0 or when another stop parameter is reached.
to set the stop time.
6.3.5 Over Voltage Protection (OVP)
Over voltage protection is always enabled, however the user can set the OVP voltage limits.
Press the button then use the soft key to select List/Battery > Batt Test Setup > Fail Safe Settings >
OVP.
– Use the numeric keypad or rotary knob to set the desired OVP limit.
– Press the
When OVP protection is tripped during operation, the output will be de-rated to 0 V and the icon
will appear.
Data Logger
The data logger can record the output voltage, current, and the error codes. The Data Logger can be congured to
record either Voltage only, Current only, or both.
Connect a USB ash drive to the front panel USB port. Max. Recording time will vary based on the ash drive size and
the amount of the data being logged.
Figure 7.1 Data Logger Max Time
7.1 Using the Data Logger Function
Press the button then use the soft key to select Data logger. The Data Logger settings can be selected in this
menu.
Before starting the Data Logger its settings must be adjusted.
1. Set the desired Sampling Interval See 7.2.1
2. Select a File Path to determine where to store the collected data. see 7.2.2
3. Enable or disable T. Stamp Filename. See 7.2.3
4. Choose what data to record. See 7.2.4
5. Enable or disable Status Code. See 7.2.5
6. Select a Trigger Source. See 7.2.6
7. After setting all desired parameters press datalog Start/Stop to begin recording. Staring data log will vary based
on chosen trigger. See 7.2.7
Data Logger 45
7.2 Parameters
7.2.1 Sampling Interval
Press the button then use the soft key to select Data logger > Sampling Interval.
Use the numeric keypad or rotary motor to select the sampling interval. Press to assign the selected value. (.2s
to 300s)
7.2.2 File Path
Press the button then use the soft key to select Data logger > File Path.
Using the rotary knob and navigate through the le path of the USB. Once the desired location has been found
select save by pressing the softkey furthest to the left.
Verify that the correct path was chosen in the Data Logger menu.
Figure 7.2 File Path Selected
7.2.3 T. Stamp Filename
Press the button then use the soft key to select Data logger > T. Stamp Filename
Toggle to enable/disable time and date on the le name.
Example Enabled 9240_log_20201017002307
Disabled 9240_log
Figure 7.3 Enabled
and Disabled T. Stamp
7.2.4 Log Data
Press the button then use the soft key to select Data logger > Next Pg. > Log Data.
Select data to be logged.
– All: Record both voltage and current.
– Voltage: Record the voltage.
– Current: Record the current.
Data Logger 46
Note:
Figure 7.4 Log Data All
The data is recorded in the following order:
Elapsed Time Voltage Current Status Code
Table 7.1 Data Order
Data order will vary depending on Log Data selected.
7.2.5 Status Code
Press the button then use the soft key to select Data logger > Status Code.
Toggle to enable/disable status code.
Enabled Status Code will record all codes reported. See 7.4 for an example.
In gure 7.4 the code 0x0001 is returned. This indicates OVP has been triggered.
Table 7.2 denes each code.
Code Description
0x0001 Over Voltage Protection Triggered
0x0002 Over Current Protection Triggered
0x0004 Over Temperature Protection Triggered
0x0008 Sense not connected
Table 7.2 Status Code
Data Logger 47
7.2.6 Trigger Source
Press the button then use the soft key to select Data logger > Trigger Source.
Datalog can be triggered in three ways: Manual, Digital IO, and Remote.
• Manual: Select to use manual trigger. The trigger softkey will be available as Datalog Start/Stop. See section 7.2.7
• Digital IO: Select to use the digital I/O pins to receive a trigger. To assign a function to a pin see section8.4.1.
• Remote: Select to receive a trigger from a remote interface.
Note:
For Digital IO and Remote the rst trigger will turn Data log on. A second trigger will begin
data recording. will be displayed on the top right when data is being logged. See 7.2.7
7.2.7 Datalog Start/Stop
Press the button then use the soft key to select Data logger > Datalog Start/Stop. Toggle to turn datalog
On/O.
will be displayed on the top right when data logger is on but not recording.
The command INIT:IMM:DLOG will turn on data logger.
For Digital IO press Datalog Start/Stop to turn data logger on.
will be displayed on the top right when data logger is recording.
The command TRIG:DLOG:IMM will begin the recording.
For Digital IO an input high signal to the set pin will turn data logger on.
If Trigger Source is set to manual pressing Datalog Start/Stop will start/stop recording without a second signal.
Utilities Menu
Congure the settings in the following menus:
• User Settings
• Remote Interface
• I/O Conguration
• Test/Admin
• Error Log
• Help
8.1 User Settings
Press the button then use the soft key to select Utilities > User Settings.
The system’s settings can be congured here.
8.1.1 Key Lock Output
Press the button then use the soft key to select Utilities > User Settings > Key Lock Output.
Toggle to enable/disable the key lock.
– Enabling Key Lock Output changes the function of Key Lock.
– For more information see chapter 9
– Default: OFF
8.1.2 Beep Sound
Press the button then use the soft key to select Utilities > User Settings >Beep Sound.
Toggle to enable/disable the beeper sound.
Default: ON
8.1.3 Date
Press the button then use the soft key to select Utilities > User Settings >Date.
Use the number pad to set the date.
YY/MM/DD
Utilities Menu 49
8.1.4 Time
Press the button then use the soft key to select Utilities > User Settings >Time.
Use the number pad to set the time.
HH:MM:SS
8.1.5 Screen Intensity
Press the button then use the soft key to select Utilities > User Settings >Next Pg. > Screen Intensity.
Use the rotary knob or number pad to set the screen brightness.
Lowest 1
Highest 10
8.1.6 Language
Press the button then use the soft key to select Utilities > User Settings >Next Pg. > Language.
Set the language for the On Screen Help guide. It does not change the language for the menus. For more information
about On Screen Help see section 8.8
8.2 Remote Interface
The 9240 series supports remote communication on up to three interfaces: USB, LAN, and GPIB (optional).
While in remote mode the screen displays “RMT” in the upper right corner. Switching to remote mode does not impact
the supply’s output parameters.
In remote mode, front panel operation is disabled. Only the Local button is enabled. Revert to manual mode by pressing
the key or by sending the command SYST:LOC.
Select and congure the following interfaces:
• USB
• LAN
• GPIB
Utilities Menu 50
8.2.1 USB Settings
Press the button then use the soft key to select Utilities > I/O Cong > USB Settings.
The USB device port is located in the rear-panel. See 1.8
The 9240 series are both USBTMC and USB VCP compliant.
In the USB Settings menu use the soft keys to select either:
– USBVCP
– USBTMC
Default: USBVCP
Figure 8.1 USB Details
The VISA Resource string gives USB0::<Vendor ID>::<Product ID>::<Serial Number>:INSTR
Example From gure 8.1 :
<Vendor ID> = 0x3121
<Product ID> = 0x0003 for 9240, 0x0004 for 9241, or 0x0005 for 9242
<Serial Number> = XXXXXXXXX
When using USBVCP set the port setting to:
Figure 8.2 USB Port Settings
Utilities Menu 51
8.2.2 LAN
To congure the LAN Settings
Press the button then use the soft key to select Utilities > I/O Cong > LAN Settings.
The following settings are available in LAN Settings:
• IP Mode
• IP Address
• Subnet Mask
• Gateway IP
• Primary DNS
• Hostname
• LAN Reset
• Restore
Default
• LAN Status
Figure 8.3 LAN Settings
IP Mode
Select Dynamic Host Conguration Protocol (DHCP) or Manual to set how the LAN settings will be congured.
Press the
The easiest way to congure the LAN settings is to set the IP Mode to DHCP.DHCP will automatically assign an IP
address to the instrument.
The settings can manually be congured by selecting Manual.
button then use the soft key to select Utilities > I/O Cong > LAN Settings > IP MODE.
IP Address
The IP Address is a unique string of numbers separated by periods. To enter an IP address:
Press the
button then use the soft key to select Utilities > I/O Cong > LAN Settings > IP Address.
Use the numeric keypad to enter an IP address. Then
inputting each number press to set the address.
keys are used to separate each number in the string. After
Subnet Mask
Subnet Mask divides the IP address into network address and host address.
To set Subnet Mask:
Utilities Menu 52
Press the
Use the numeric keypad to enter the subnet mask. Then keys are used to separate each number in the string.
After inputting each number press
button then use the soft key to select Utilities > I/O Cong > LAN Settings > Subnet Mask.
to set the address.
Gateway IP
The gateway address is by default the IP address of the network device that connects the instrument.
If IP Mode is set to DHCP Gateway IP does not have to be set.
To set Gateway IP :
Press the button then use the soft key to select Utilities > I/O Cong > LAN Settings > Gateway IP.
Use the numeric keypad to enter an IP address. Then
inputting each number press to set the address.
keys are used to separate each number in the string. After
Primary DNS
Domain Name Service (DNS) is the system that automatically translates Internet addresses to the numeric machine
addresses. The DNS address is the IP address of the system that performs this service.
If IP Mode is set to DHCP DNS will automatically be set.
To set the Primary DNS :
Press the
Use the numeric keypad to enter an IP address. Then
inputting each number press
button then use the soft key to select Utilities > I/O Cong > LAN Settings > Primary DNS .
keys are used to separate each number in the string. After
to set the address.
Hostname
Each instrument comes with a unique hostname that can be changed. The default hostname has the following format:
BK-<modelnumber>-<Serialnumber>
Figure 8.3 shows the example:
BK-9241-XXXXX
Utilities Menu 53
LAN Reset
LAN Reset resets all LAN settings and webpage passwords.
To reset LAN :
Press the button then use the soft key to select Utilities > I/O Cong > LAN Settings > LAN Reset .
Before resetting a warning will display informing both LAN settings and webpages passwords will be reset.
Select Yes to nalize the reset.
Figure 8.4 Reset
Utilities Menu 54
Restore Default
Restore Default will set all LAN settings to their factory defaults.
To restore factory defaults:
Press the button then use the soft key to select Utilities > I/O Cong > LAN Settings > Restore Default .
Before restoring LAN settings to default the following warning will display.
Select Yes to set to factory default.
Figure 8.5 Restore Factory Defaults
LAN Status
LAN Status provides an overview of the LAN settings.
To view the LAN status:
Utilities Menu 55
Press the
button then use the soft key to select Utilities > I/O Cong > LAN Status .
Figure 8.6 LAN Status
8.3 GPIB (optional)
In GPIB the GPIB address can be changed from 01 to 30.
To change the GPIB address:
Press the button then use the soft key to select Utilities > I/O Cong > GPIB.
Utilities Menu 56
Figure 8.7 GPIB Address
Use the numeric keypad to enter the new address, then press the
The rotary knob can also be used to set the address. must be pressed to set the new address.
key.
8.4 Digital I/O
To enter the Digital I/O menu:
Press the button then use the soft key to select Utilities > I/O Cong > Digital I/O.
Select the function and polarity of pins: 1, 2, and 3.
Utilities Menu 57
• Pin Functions
– None
– Digital In | Out
– Trigger In | Out
– Fault Out/Inhibit In
– Polarity Pos | Neg
• Inhibit Mode
– O
– Latched
– Live
8.4.1 Functions
Default: None
To congure a pin:
Press the
button then use the soft key to select Utilities > I/O Cong > Digital I/O > Pin(#).
None
Set selected pin to have no function.
Figure 8.8 Digital I/O Menu
Digital In | Out
Toggle to select In/Out digital function.
Digital In: Receive a signal from external device.
Digital Out: Send a signal to external device.
The input voltage range for digital I/O pins is 0 V to 5 V. To prevent damage to the
instrument, do not exceed 5 V or supply a negative voltage to the digital I/O pins.
Trigger In | Out
Toggle to select In/Out trigger function.
Utilities Menu 58
Trigger In: Receives signal that triggers set event.
Trigger Out: Sent trigger signal when specied. (BOST or EOST)
In List Mode, the Trigger In function can be used to trigger the next step when Trigger Source is set to Digital IO.
In Datalog, the Trigger In function can be used to start/stop data logging when Trigger Source is set to Digital IO.
Trigger Out is only available for list mode, step BOST and EOST.
Fault Out
Enable a fault condition, which generates a protection fault signal on the digital port.
Dierent conditions such as over voltage, over current, or over temperature will generate a fault event.
The fault event will “disable” all outputs without turning them o.
The outputs are “disabled” by setting the outputs as low as possible.
8.4.1 Polarity
Default: Positive
Set polarity of selected pin.
Positive
A logic true signal is received as a voltage high.
Negative
A logic true signal is received as a voltage low.
8.4.1 Inhibit Mode
Receive an external input signal that controls the output state.
Default: O
To set Inhibit Mode:
1. Assign the inhibit In function to pin 3 by:
Utilities Menu 59
Press the
In.
2. Select Inhibit Mode: Press the button then use the soft key to select Utilities > I/O Cong > Digital I/O
> Inhibit Mode.
3. Select one of the following modes:
button then use the soft key to select Utilities > I/O Cong > Digital I/O > Pin 3 > Inhibit
Note:
The following modes are only available for pin 3.
O
The inhibit input is ignored.
Latched
A logic-true transition signal will disable the power supply. The output will remain disabled.
Live
Power supply output follows the state of the inhibit signal. If the inhibit signal is true the output is disabled. When it is
false the output is enabled.
8.5 Test/Admin
8.5.1 Self Test
Run a Module test.
Utilities Menu 60
Press the
button then use the soft key to select Utilities > Test/Admin > Self-Test > Start.
Figure 8.9 Self Test Complete
8.5.2 Security
The Security Settings are locked and can be accessed by entering the default code 77416699.
Note:
Figure 8.10 Security Locked
The default password can be change in the Change Code menu. If
the set code is forgotten contact B&K Precision customer support.
Use the password to gain access to the following settings.
• Change Code
• Calibrate
• Firmware Update
• NISPOM
• Lock
Change Code
Utilities Menu 61
Changes the security code.
Press the button then use the soft key to select Utilities > Test/Admin > Security > Change Code.
Calibrate
Enter calibration mode.
Press the
See chapter Calibration Adjustment Procedure to adjust the units calibration.
button then use the soft key to select Utilities > Test/Admin > Security > Calibrate .
Firmware Update
Update the rmware and module. Press the button then use the soft key to select Utilities > Test/Admin >
Security > Firmware Update .
NISPOM
Select for complete memory wipe. Press the button then use the soft key to select Utilities > Test/Admin >
Security > NISPOM .
Lock
Sets security status to Lock. Press the button then use the soft key to select Utilities > Test/Admin >
Security > Lock .
Utilities Menu 62
If Done is selected without locking the security settings, the user will be prompted that the security settings will not be
locked.
8.6 Error Log
View up to 50 previously set error codes.
Press the button then use the soft key to select Utilities > Error Log.
Figure 8.11 Error Log
Errors are placed in the order that they were encountered. 1 being the most recent.
The error log displays up to 50 error codes.
After reaching 50 error codes no more codes will be reported in the error log.
To continue ling error codes the error log list must be cleared
The error log can be saved into a USB ash drive connected to the USB port on the front panel.
Save the log by:
Pressing the
Use the rotary knob and the
been found select Save by pressing the softkey furthest to the left.
Clear the data log by:
Pressing the
button then use the soft key to select Utilities > Error Log > Save .
button to navigate through the le path of the USB. Once the desired location has
button then use the soft key to select Utilities > Error Log > Clear All > Yes.
Code Description
0x0001 Over Voltage Protection Triggered
0x0002 Over Current Protection Triggered
0x0004 Over Temperature Protection Triggered
0x0008 Sense not connected
Table 8.1 Status Code
8.7 Help
To enter the Help menu:
Press the button then use the soft key to select Utilities > Help.
Utilities Menu 63
Figure 8.12 Help Menu
Use the rotary knob to navigate the help options shown in gure 8.12.
To select the Quick help topic press the
key or press the Select softkey.
System Info
To view the instrument’s general information:
Press the button then use the soft key to select Utilities > Help > System Info.
Figure 8.13 System Info
8.8 On Screen Help
Press and hold any soft key that selects a menu branch for 3 seconds to receive an explanation of what can be found in
that branch.
Key Lock
Lock all front panel keys including .
Press the button then use press and hold the soft keys Key Lock for 3 seconds.
Figure 9.1 Key Lock
If Key Lock Output is enabled, holding Key Lock for 3 seconds locks all front panel keys except and .
See section 8.1.1 to enable/disable Key Lock Output.
To unlock the front panel use the softkey to select Unlock.
Save/Recall
Save/Recall the instruments Output Settings and Power-On Settings.
10.1 Save the Output Settings
Save to Internal Memory
Save the instrument’s output settings to the internal memory. A total of 10 (0 to 9) output settings can be saved.
To save the output settings :
Press the
Using the numeric keypad enter a number from 0 to 9 to save the output settings to that address.
The settings will be saved after a short delay.
button then use the soft keys to select Save > Save to INT.
Figure 10.1 Save to Internal Storage
Save to USB
Save the instrument’s output settings to a USB ash drive connected to the front panel USB host port.
Press the button then use the soft keys to select Save > Save to USB.
Using the rotary knob navigate through the le paths of the USB. Use the button to expand folders.
Once the desired location has been found press Save.
The output settings will be saved after a short delay.
Save/Recall 66
Figure 10.2 Save to USB
10.2 Recall the Instrument’s Settings
Recall previously saved output settings from the internal memory. A total of 10 (0 to 9) user settings can be saved.
To recall settings :
Press the button then use the soft keys to select Recall > Recall from INT.
Use the numeric keypad to enter a number from 0 to 9 to recall the output settings stored in that address.
The settings will be recalled after a short delay.
Figure 10.3 Recall from Internal Memory
Recall from USB
Recall the instrument’s output settings from a USB drive.
Press the
button then use the soft keys to select Recall > Recall from USB.
Save/Recall 67
Use the rotary knob to navigate through the le paths of the USB. Use the button to expand folders.
Once the desired location has been found press Load.
The settings will be recalled after a short delay.
Figure 10.4 Recall from USB
10.3 Power-On Settings
Load previously saved output parameters on power-on.
O
To turn o Power-On Mode:
Press the button then use the soft keys to select Power-On Settings > Power- On Mode > O.
Last
To set the output parameters to the previous parameters before powering-o the instrument: Press the button
then use the soft keys to select Power-On Settings > Power- On Mode > Last.
User
To set the output parameters previously saved parameters:
• Press the
button then use the soft keys to select Power-On Settings > Power- On Mode > User.
• Press the button then use the soft keys to select Power-On Settings > User Settings.
• Use the numeric keypad or the rotary knob to assign an address (0 to 9).
To save settings see 10.1.
Default Values and Ranges
Set the instrument’s output settings to default.
Press the button then use the soft keys to select Set to Default.
Save/Recall 68
9240
9241 / 9242
Parameter
Default Max Min Default Max Min
VSET 0 32.32 0 0 60.6 0 V
ISET 1 8.08 .015 1 4.04 / 10.01 .015 A
Vmax 32.32 32.32 0 60.6 60.6 0 V
Vmin 0 32.32 0 0 60.6 0 V
Vslew 1600 3200 0.001 600 3000 0.001 V/s
Islew 500 800 1 100 200 1 A/s
OVP Limit 35.2 35.2 0 66 66 0.000 V
OCP Limit 8.8 8.800 0.015 4.4 4.4 / 10.1 0.015 A
Timer 0 99:59:59 0 0 99:59:59 0 HH:MM:SS
On Delay 0 3600 0 0 3600 0 Sec
O Delay 0 3600 0 0 3600 0 Sec
Datalogger
Sampling Interval
List Dwell 0.1 9999 0.1 0.1 9999 0.1 Sec
0.2 300 0.200 0.2 300 0.2 Sec
Unit
List Voltage 1 32.32 0 1 60.6 0 V
List Current .015 8.08 .015 .015 4.04 / 10.01 .015 A
List Repeat 0 100000 0 0 100000 0
Table 10.1 Default Values & Ranges
10.4 Screenshot
To take a screenshot:
Press + together for 3+seconds until you hear a beep.
A USB must be plugged in for this function.
Calibration Adjustment Procedure
Calibration Interval
The recommended calibration interval for the 9240 series is one year.
To enter the Calibration Menu:
Press the button, then use the soft key to select Utilities > Test/Admin > Security > Calibrate.
In the Calibration Menu use the softkeys to select a parameter from the menu to calibrate.
• Voltage
• Current
• OVP
• OCP
• RTC
Figure 11.1 Calibration Parameters
Calibration Adjustment Procedure 70
11.1 Voltage Calibration Adjustment
For the voltage calibration procedure a precise DMM will be needed.
To adjust the voltage calibration:
1. Enter the Calibration Menu
• Press the button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter
the security menu.
2. Use the softkeys to select Voltage.
3. Connect the DMM’s voltage input to the power supply’s binding post.
4. Use the softkey to select Start.
5. Use the numeric keypad to enter the measured voltage. Press the
6. Repeat step 6 for the remaining calibration points.
7. Upon entering the last calibration point value the display will return to the select parameter calibration menu.
button to congure the point.
Calibration Adjustment Procedure 71
11.2 Current Calibration Adjustment
For the current calibration procedure a precise DMM will be needed.
To adjust the current calibration:
1. Enter the Calibration Menu
• Press the button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the
security menu.
2. Use the softkeys to select Current .
3. Verify the correct channel is chosen.
4. Connect the DMM current input to the power supply’s binding post.
Note:
Upon entering a calibration point the unit will immediately output the next current point.
To avoid blowing the DMM’s fuse ensure the correct DMM’s input is chosen.
The points’ output are as follows:
9240
1st Point 0.4 A
2nd Point 2.8 A
3rd Point 5.5 A
4th Point 8.0 A
5. Use the softkey to select Start.
6. Use the numeric keypad to enter the measured current. Press the
7. Repeat step 6 for the remaining calibration points.
8. Upon entering the last calibration point value the display will return to the select parameter calibration menu.
9241
1st Point 0.2 A
2nd Point 1.4 A
3rd Point 2.7 A
4th Point 4.0 A
button to congure the point.
Calibration Adjustment Procedure 72
11.3 OVP Calibration Adjustment
For the over voltage protection calibration the instrument’s voltage must be calibrated.
To adjust the OVP calibration:
1. Enter the Calibration Menu
• Press the button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the
security menu.
2. Use the softkeys to select OVP.
3. Connect the DMM’s voltage input to the power supply’s binding.
4. Use the softkey to select Start.
5. Calibration State will show as Busy. After a few seconds the calibration will be adjusted on its own.
6. Upon calibration the display will return to the select parameter calibration menu.
Calibration Adjustment Procedure 73
11.4 OCP Calibration Adjustment
For the over current protection calibration the instrument’s current must be calibrated.
To adjust the OCP calibration:
1. Enter the Calibration Menu
• Press the button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the
security menu.
2. Use the softkeys to select OCP.
3. Verify the correct channel is chosen.
4. Connect the DMM’s 10 A input to the power supply’s binding post corresponding to the selected channel.
5. Use the softkey to select Start.
6. Calibration State will show as Busy. After a few seconds the calibration will be adjusted on its own.
7. Upon calibration the display will return to the select parameter calibration menu.
Calibration Adjustment Procedure 74
11.5 RTC Calibration Adjustment
To adjust the Real-Time Clock(RTC) calibration:
1. Enter the Calibration Menu
• Press the button, then use the soft key to select Utilities > Test/Admin > Security.
Use the numeric keypad to enter security code. See the subsection Security. Press the button to enter the
security menu.
2. Use the softkeys to select RTC.
3. Use the softkey to select Start.
4. Calibration State will show as Busy. The calibration will be adjusted on its own in about 4 to 5 mins.
5. Calibration State will show as Success once the calibration has nished.
Performance Verication
Performance verication ensures the instrument will meet specications listed in the datasheet.
Load regulation can be tested for both the front and rear outputs.
Note:
All specications apply to the unit after a temperature stabilization time of 15 minutes over an ambient temperature
range of 23 °C ± 5 °C. Specications are valid for single unit operation only.
CV Load Regulation Front Panel Output
1. Turn o the power supply before making any connections.
2. Connect the: DMM, electronic load, and the rear panel remote sense to the power supply’s terminal being tested.
(Remote sense must correspond with the channel being tested.)
Figure 12.1 Front Panel Wiring Diagram
Note:
Keep all cables as short as possible.
3. Turn on the power supply.
4. Set the power supply settings of the channel being tested to the values given in table 12.1.
Performance Verication 76
5. Set the electronic load settings to the stated values in table 12.1.
6. Enable remote sense. See section Remote Sense.
7. Enable the channel output.
8. Enable the electronic load. Monitor the power supply to ensure it remains in CV mode.If the power supply switches
to CC slightly lower the current on the electronic load until the power supply return to CV mode.
9. Give the power supply some time to settle and record the DMM reading as V load.
10. Disable the electronic load and record the DMM reading as V noload.
11. Take the dierence between V load and V noload (V load - V noload) and record the value as the voltage regulation.
The dierence should be within the specication limit.
CV Load Regulation Rear Panel Output
1. Turn o the power supply before making any connections.
2. Connect the: DMM, electronic load, and the rear panel remote sense to the power supply’s rear +/- terminal being
tested.Use jumpers to connect the +S to + and -S to -. See gure 12.2
(Remote sense must correspond with the channel being tested.)
Figure 12.2 Rear Panel Wiring Diagram
3. Turn on the power supply.
4. Set the power supply settings of the channel being tested to the values given in table 12.1.
Performance Verication 77
5. Set the electronic load settings to the stated values in table 12.1.
6. Enable remote sense. See section Remote Sense.
7. Enable the channel output.
8. Enable the electronic load. Monitor the power supply to ensure it remains in CV mode.If the power supply switches
to CC slightly lower the current on the electronic load until the power supply return to CV mode.
9. Give the power supply some time to settle and record the DMM reading as V load.
10. Disable the electronic load and record the DMM reading as V noload.
11. Take the dierence between V load and V noload (V load - V noload) and record the value as the voltage regulation.
The dierence should be within the specication limit.
Model
Power Supply Settings Electronic Load Settings Load Regulation Limit
Voltage Current Remote Sense Mode Current Lower Limit Upper Limit
9240 32.000 V 3.750 A Enabled CC 3.740 A - 6.2 mV + 6.2 mV
9241 60.000 V 2.000 A Enabled CC 1.990 A - 9 mV + 9 mV
9242 60.000 V 3.333 A Enabled CC 3.320 A - 9 mV + 9 mV
Table 12.1
Specications
Specications 79
Model 9240 9241 9242
Output Rating
Voltage 32 V 60 V
Current 8 A 4 A 10 A
Maximum Output 120 W 200 W
Load Regulation
Line Regulation ± (% output + oset)
Ripple and Noise ( 20 Hz to 20 MHz )
Programming / Readback Resolution
(1)
± (% output + oset)
Voltage ≤0.01% + 3 mV
Current ≤0.1% + 3 mA
Voltage ≤0.01% + 3 mV
Current ≤0.1% + 3 mA
Normal Mode Voltage p-p ≤5 mV ≤10 mV
Normal Mode Voltage rms ≤1 mV ≤2 mV
Normal Mode Current rms ≤3 mA
Voltage 1 mV
Current 1 mA
Programming / Readback Accuracy ± (% output + oset)
Voltage 0.03% + 4 mV 0.03% + 8 mV
Current 0.1% + 5 mA 0.1% + 3 mA
Temperature Coecient per °C
Voltage 6.4 mV / °C 12 mV / °C
Current 1.6 mA / °C 0.8 mA / °C
Output Response Time
(2)
Full load 10 ms 20 ms
Rise Time
No load 10 ms 20 ms
Full load 10 ms 20 ms
Fall Time
No load 250 ms 250 ms
Transient Response
(3)
Time 0.5 ms
Protection
Range 35.2 V 66 V
OVP
Accuracy 320 mV 600 mV
OCP
Range 8.8 A 4.4 A 11 A
Accuracy 80 mA 40 mA 100 mA
General
Remote Sense
Compensation
Command
Response Time
(4)
Specications 80
1 V
10 ms
Power Factor
0.98 / 115 VAC
0.94 / 230 VAC
USB (USBTMC & USBVCP),
I/O Interfaces
LAN (1.5 LXI device
specication 2016),
GPIB (optional)
AC Line Input
Maximum Rated Input
Power (9240 /9241)
Maximum Rated
Input Power (9242)
Temperature
Ratings
Operation 32 °F to 104 °F (0 °C to 40 °C)
Storage 14 °F to 158 °F (-10 °C to 70 °C)
100 VAC to 240 VAC ±
10%, 47 Hz to 63 Hz
200 VA
300 VA
Dimensions (W x H x D) 8.4” x 3.5” x 13” (213 x 88 x 330 mm)
Weight 11 lbs (5 kg)
Warranty 3 Years
Standard Accessories
Power cord, test report &
certicate of calibration
Optional Accessories Rack mount kit (RK2US)
Regulatory Compliance
Low Voltage Directive (LVD) 2014/35/EU,
EN61010-1:2010, cTUVus certication
Safety
Electromagnetic
Compatibility
(1) With remote sense terminal connected.
(2) From 10% to 90% or from 90% to 10% of total voltage excursion.
(3) Time for output voltage to recover within 0.5% of its rated output for a load
change 50-100% of full load.
(4) Typical time required for output to begin to change following receipt of
command data.
(5) Tested and certied by a Nationally Recognized Testing Laboratory
(NRTL), accredited by OSHA
(5)
mark
fullls US (UL 61010-1:2012) and
Canadian (CAN/CSA-C22.2 NO.
61010-1-12) safety standards
EMC Directive 2014/30/EU,
EN61326-1:2013
Service Information
Warranty Service: Please go to the
#. 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 bkprecision.com to obtain an
RMA #. Return the product in the original packaging 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. 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 section on our website.
Return all merchandise to B&K Precision Corp. with prepaid shipping. The at-rate r epair c harge f or 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.
Include with the returned instrument your complete return shipping address, contact name, phone number and description
of problem.
support and service section on our website at bkprecision.com to obtain an RMA
LIMITED THREE-YEAR WARRANTY
B&K Precision Corp. warrants to the 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. will, without charge, repair or 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 complete 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,
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.
including without limitation damages resulting
Version: January 24, 2022
Test Equipment Depot - 800.517.8431 - 5 Commonwealth Ave, MA 01801
TestEquipmentDepot.com
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