B+K precision 9140 Series User manual

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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 specied 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 denes 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 denes 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.
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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 specied
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 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.
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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 oce-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 specications.
• 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 specied operating temperatures.
• In atmospheric pressures outside the specied altitude limits or where the surrounding gas is not air.
• In environments with restricted cooling air ow, even if the air temperatures are within specications.
• 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 specications if the instrument is used in non-
oce-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
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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 qualied 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.
Fuse replacement must be done by qualied service-trained maintenance personnel who are aware of
the instrument’s fuse requirements and safe replacement procedures. Disconnect the instrument from
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the power line before replacing fuses. Replace fuses only with new fuses of the fuse types, voltage
ratings, and current ratings specied 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 specied 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.
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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.
Indicates the Out position of the power switch when instrument is OFF.
Indicates practices not related to physical injury.
Table 1 Safety Symbols
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Contents
1 Introduction 11
1.1 Product Overview 11
1.2 Contents 12
1.3 Features 12
1.4 Dimensions 13
1.5 Rackmount Installation 14
1.6 Front Panel 15
1.7 Display 16
1.8 Rear Panel 17
2 Getting Started 18
2.1 Input Power and Fuse Requirements 18
2.2 Fuse Requirements 19
2.3 Check or Replace Fuse 19
2.4 Preliminary Check 21
2.5 Self test Errors 22
3 Basic Front Panel Operation 23
3.1 Keys 23
3.1.1 Main Keys 23
3.1.2 Soft Keys 24
3.1.3 Numeric Keys 24
3.1.4 Output Control 24
3.2 Display 25
3.3 Check Model and Firmware Version 28
3.4 Setting Voltage and Current 29
4 Output Conguration 30
4.1 Protection Settings 30
4.1.1 Over Voltage Protection (OVP) 30
4.1.2 Over Current Protection (OCP) 30
4.1.3 Over Temperature Protection & Over Temperature Warning (OTP & OTW) 30
4.1.4 Vmax/Vmin 31
4.1.5 Protection Clear 31
4.2 Output Settings 31
4.2.1 Remote Sense 31
4.2.2 Output Timer 32
4.2.3 Voltage Slew 33
4.2.4 Current Slew 33
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4.2.5 On/O Delay 33
4.3 Operating Mode and Coupling 34
4.3.1 Normal Mode 34
4.3.2 Series Mode 36
5 List Mode 47
5.1 List Setup 47
5.2 Edit List 49
5.2.1 Load/Save List 50
5.2.1 List Number 51
5.2.2 Next 52
5.2.3 Repeat 52
5.2.4 Steps 52
5.3 List Run 55
6 Data Logger 58
6.1 Using the Data Logger Function 58
6.2 Parameters 59
6.2.1 Sampling Interval 59
6.2.2 File Path 59
6.2.3 T. Stamp Filename 59
6.2.4 Log Data 60
6.2.5 Status Code 61
6.2.6 Trigger Source 61
6.2.7 Datalog Start/Stop 62
7 Utilities Menu 63
7.1 User Settings 63
7.1.1 Key Lock Output 63
7.1.2 Beep Sound 63
7.1.3 Date 64
7.1.4 Time 64
7.1.5 Screen Intensity 64
7.1.6 Language 64
7.2 Remote Interface 65
7.2.1 USB Settings 66
7.2.2 LAN 67
7.3 GPIB (optional) 73
7.4 Digital I/O 74
7.4.1 Functions 75
7.4.1 Polarity 76
7.4.1 Inhibit Mode 76
7.5 Test/Admin 77
7.5.1 Self Test 77
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7.5.2 Security 77
7.6 Error Log 79
7.7 Help 81
7.8 On Screen Help 82
8 Key Lock 83
9 Save/Recall 84
9.1 Save the Output Settings 84
9.2 Recall the Instrument’s Settings 85
9.3 Power-On Settings 86
9.4 Screenshot 87
10 Calibration Adjustment Procedure 89
10.1 Voltage Calibration Adjustment 90
10.2 Current Calibration Adjustment 91
10.3 OVP Calibration Adjustment 92
10.4 OCP Calibration Adjustment 93
10.5 RTC Calibration Adjustment 94
11 Performance Verication 95
12 Specications 98
13 Service Information 99
14 LIMITED THREE-YEAR WARRANTY 100
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Introduction
1.1 Product Overview
9140: 32 V / 8 A / 300 W 9141: 60 V / 4 A / 300 W
Figure 1.1 Front View
The 9140 Series triple output multi-range DC power supplies combine industry-leading power density
and performance with an extensive set of features in a compact 2U form factor.
Three isolated output channels each produce 100 W of clean power with exceptionally low ripple and
noise characteristics. Combine channels to output up to 300 W, distributing the power across all three
channels. Multiple outputs paired with advanced list mode programming, data logging, and protection
features make these power supplies suitable for a wide range of benchtop or test system applications.
Model 9140 9141
Voltage per Channel 0 to 32 V 0 to 60 V
Current per Channel 0 to 8 A 0 to 4 A
Maximum Power per Channel 100 W
Maximum Combined Power 300 W
Table 1.1 Models
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Introduction 12
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 9140 or 9141 Power Supply
• 1 x AC Power Cord
• 1 x Certicate 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.
1.3 Features
• Three independent galvanically isolated, oating output channels providing up to 100 W per channel
or 300 W total when combining all three channels
• High power density, compact 2U half-rack form factor
• Multi-ranging operation delivers rated power at various voltage/current combinations
• Combine outputs in parallel or series to increase current or voltage (up to 24 A or 180 V depending
on the model)
• Advanced list mode programming with internal storage for up to 10 list mode programs and list
sequencing capabilities
• Digital I/O block oers external triggering, voltage fault and remote inhibit capabilities
• Overvoltage (OVP), overcurrent (OCP), overtemperature (OTP), and includes a key-lock function
• NISPOM-compliant sanitization procedure to securely erase and return the instrument to factory
settings
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Introduction 13
• USB (USBTMC-compliant) and LXI compliant LAN interfaces standard, GPIB optional
• LabVIEW𝑇 𝑀 , IVI-C, and IVI.NET drivers provided
1.4 Dimensions
The 9140 power supply’s 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
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Introduction 14
1.5 Rackmount Installation
The 9140 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
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Introduction 15
1.6 Front Panel
Figure 1.4 Front Panel
Item Name Description
1 Power Button Power the instrument ON or OFF
2 Function Keys See section ?? 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 congure parameters.
7 Output Isolated and oating output channel supporting sheathed banana
plugs and spade lug type connectors
8 Soft Keys Used to invoke any functions displayed above them.
Table 1.2 Front Panel
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Introduction 16
1.7 Display
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
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Introduction 17
1.8 Rear Panel
Figure 1.5 Rear Panel
Item Name Description
1 Output/Sense Rear panel output with remote sense. Internal relays switch between
local and remote sensing.
2Kensington
security slot
Lock the instrument to a xed location using the security lock via the
lock hole. Lock is not included.
3GPIB 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 Connect a Cat 5/6 Ethernet straight-through patch cable to remotely
control the unit.
7 Chassis ground Provides a zero potential voltage reference and a dissipation point for
interference, transient voltages and static.
8AC power input
& fuse box Houses the fuse as well as the AC input.
Table 1.4 Rear Panel
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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:
9140 9141
AC Line Input 100 - 240 VAC ±10%, 47 to 63 Hz
AC Line Phase Single Phase
Maximum Rated
Input Power 500 VA
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 sucient circuit capacity for the power supply. Once veried, connect
the cable rmly.
The included AC power cord is safety certied for this instrument operating in rated range. To
change a cable or add an extension cable, be sure that it can meet the required power
ratings for this instrument. Any misuse with wrong or unsafe cables will void the warranty.
SHOCK HAZARD
The power cord provides a chassis ground through a third conductor. Verify that your
power outlet is of the three-conductor type with the correct pin connected to earth ground.
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Getting Started 19
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 Specication
9140 3.15 AT, 250 V
9141 3.15 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
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Getting Started 20
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.
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 10 12 14 16 18 20 22 24 26 28
Imax (A) 40 25 20 13 10 7 5 3.5 2.5 1.7
mΩ/meter 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
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.
SHOCK HAZARD:
Floating voltage must not exceed 200 VDC.
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