B+K precision 9110 User manual

Model: 9110, 9111

Multi Range DC Power Supply

USER MANUAL

Safety Summary

The following safety precautions apply to both operating and maintenance personnel and must be

followed during all phases of operation, service, and repair of this instrument.

Before applying power to this instrument:

•Read and understand the safety and operational information in this manual.

•Apply all the listed safety precautions.

•Verify that the voltage selector at the line power cord input is set to the correct line

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

•Make all connections to the instrument before applying power.

•Do not operate the instrument in ways not specified by this manual or by B&K Precision.

Failure to comply with these precautions or with warnings elsewhere in this manual violates the safety

standards of design, manufacture, and intended use of the instrument. B&K Precision assumes no

liability for a customer’s failure to comply with these requirements.

Category rating

The IEC 61010 standard defines safety category ratings that specify the amount of electrical energy

available and the voltage impulses that may occur on electrical conductors associated with these

category ratings. The category rating is a Roman numeral of I, II, III, or IV. This rating is also accompanied

by a maximum voltage of the circuit to be tested, which defines the voltage impulses expected and

required insulation clearances. These categories are:

Category I (CAT I): Measurement instruments whose measurement inputs are not intended to be

connected to the mains supply. The voltages in the environment are typically derived from a limited-

energy transformer or a battery.

Category II (CAT II): Measurement instruments whose measurement inputs are meant to be connected

to the mains supply at a standard wall outlet or similar sources. Example measurement environments

are portable tools and household appliances.

Category III (CAT III): Measurement instruments whose measurement inputs are meant to be connected

to the mains installation of a building. Examples are measurements inside a building's circuit breaker

panel or the wiring of permanently-installed motors.

Category IV (CAT IV): Measurement instruments whose measurement inputs are meant to be connected

to the primary power entering a building or other outdoor wiring.

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

specified in this manual for this instrument.

You must ensure that each accessory you use with this instrument has a category rating equal to or

higher than the instrument's category rating to maintain the instrument's category rating. Failure to do

so will lower the category rating of the measuring system.

Electrical Power

This instrument is intended to be powered from a CATEGORY II mains power environment. The mains

power should be 120 V RMS or 240 V RMS. Use only the power cord supplied with the instrument and

ensure it is appropriate for your country of use.

Ground the Instrument

To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical safety

ground. This instrument is grounded through the ground conductor of the supplied, three-conductor AC

line power cable. The power cable must be plugged into an approved three-conductor electrical outlet.

The power jack and mating plug of the power cable meet IEC safety standards.

Do not alter or defeat the ground connection. Without the safety ground connection, all accessible

conductive parts (including control knobs) may provide an electric shock. Failure to use a properly-

grounded approved outlet and the recommended three-conductor AC line power cable may result in

injury or death.

Unless otherwise stated, a ground connection on the instrument's front or rear panel is for a reference

of potential only and is not to be used as a safety ground.

Do not operate in an explosive or flammable atmosphere

Do not operate the instrument in the presence of flammable gases or vapors, fumes, or finely-divided

particulates.

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

instrument

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

finely-divided particulates.

•In relative humidity conditions outside the instrument's specifications.

•In environments where there is a danger of any liquid being spilled on the instrument or

where any liquid can condense on the instrument.

•In air temperatures exceeding the specified operating temperatures.

•In atmospheric pressures outside the specified altitude limits or where the surrounding

gas is not air.

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

specifications.

•In direct sunlight.

This instrument is intended to be used in an indoor pollution degree 2 environment. The operating

temperature range is 0 °C to 40 °C and the operating humidity range is ≤80% relative humidity with no

condensation allowed.

Measurements made by this instrument may be outside specifications if the instrument is used in non-

office-type environments. Such environments may include rapid temperature or humidity changes,

sunlight, vibration and/or mechanical shocks, acoustic noise, electrical noise, strong electric fields, or

strong magnetic fields.

Do not operate instrument if damaged

If the instrument is damaged, appears to be damaged, or if any liquid, chemical, or other material gets

on or inside the instrument, remove the instrument's power cord, remove the instrument from service,

label it as not to be operated, and return the instrument to B&K Precision for repair. Notify B&K

Precision of the nature of any contamination of the instrument.

Clean the instrument only as instructed

Do not clean the instrument, its switches, or its terminals with contact cleaners, abrasives, lubricants,

solvents, acids/bases, or other such chemicals. Clean the instrument only with a clean dry lint-free cloth

or as instructed in this manual.

Not for critical applications

This instrument is not authorized for use in contact with the human body or for use as a component in a

life-support device or system.

Do not touch live circuits

Instrument covers must not be removed by operating personnel. Component replacement and internal

adjustments must be made by qualified service-trained maintenance personnel who are aware of the

hazards involved when the instrument's covers and shields are removed. Under certain conditions, even

with the power cord removed, dangerous voltages may exist when the covers are removed. To avoid

injuries, always disconnect the power cord from the instrument, disconnect all other connections (for

example, test leads, computer interface cables, etc.), discharge all circuits, and verify there are no

hazardous voltages present on any conductors by measurements with a properly-operating voltage-

sensing device before touching any internal parts. Verify the voltage-sensing device is working properly

before and after making the measurements by testing with known-operating voltage sources and test

for both DC and AC voltages. Do not attempt any service or adjustment unless another person capable

of rendering first aid and resuscitation is present.

Do not insert any object into an instrument's ventilation openings or other openings.

Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault

condition in the circuit exists.

Fuse replacement

Fuse replacement must be done by qualified service-trained maintenance personnel who are aware of

the instrument's fuse requirements and safe replacement procedures. Disconnect the instrument from

the power line before replacing fuses. Replace fuses only with new fuses of the fuse types, voltage

ratings, and current ratings specified in this manual or on the back of the instrument. Failure to do so

may damage the instrument, lead to a safety hazard, or cause a fire. Failure to use the specified fuses

will void the warranty.

Servicing

Do not substitute parts that are not approved by B&K Precision or modify this instrument. Return the

instrument to B&K Precision for service and repair to ensure that safety and performance features are

maintained.

Cooling fans

This instrument contains one or more cooling fans. For continued safe operation of the instrument, the

air inlet and exhaust openings for these fans must not be blocked nor must accumulated dust or other

debris be allowed to reduce air flow. Maintain at least 25 mm clearance around the sides of the

instrument that contain air inlet and exhaust ports. If mounted in a rack, position power devices in the

rack above the instrument to minimize instrument heating while rack mounted. Do not continue to

operate the instrument if you cannot verify the fan is operating (note some fans may have intermittent

duty cycles). Do not insert any object into the fan's inlet or outlet.

Do not short-circuit batteries

When using a DC load to discharge a battery, do not exceed the battery manufacturer's specified

maximum rate of discharge.

Use correctly sized wires

To connect the load to the power supply, use a wire diameter large enough to handle the maximum

continuous output short-circuit current of the power supply without the wire overheating.

For continued safe use of the instrument

•Do not place heavy objects on the instrument.

•Do not obstruct cooling air flow to the instrument.

•Do not place a hot soldering iron on the instrument.

•Do not pull the instrument with the power cord, connected probe, or connected test

lead.

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

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.

CE Declaration of Conformity

The instrument meets the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC

Electromagnetic Compatibility Directive with the following standards.

Low Voltage Directive

-EN61010-1: 2001

EMC Directive

-EN 61000-3-2: 2006

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

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

-EN 61326-1: 2006

Safety Symbols

CAUTION indicates a hazardous situation which, if not

avoided, could result in minor or moderate injury.

Chassis (earth ground) symbol.

On (Power)

Off (Power)

DANGER indicates a hazardous situation which, if not avoided,

will result in death or serious injury.

WARNING indicates a hazardous situation which, if not

avoided, could result in death or serious injury.

CAUTION indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

Safety instructions (or equivalent) signs indicate specific safety-

related instructions or procedures.

Front Panel layout

Set Voltage indicator

Voltage value

Cursor position B or preset B is active

Cursor position A or preset A is active

Cursor position C or preset C is active

Cursor position D or preset D is active

Current value

Store voltage-ampere combination (Shift)

Move cursor left or store/recall

preset A values

Keyboard lock (Shift)

Enter or store/recall preset C values

CC mode indicator

CV mode indicator

OCP indicator

OVP indicator

Preset mode indicator

Keys locked indicator

Shift mode indicator

Output off indicator

Set Current indicator

Recall Preset values

Move cursor left or store/recall

preset B values

Enter OVP, OCP, preset mode

Toggle between Voltage/Current

setting or store/recall preset D

Display Voltage and Current setting

Output on/off

Secondary function key

knob

Air flow input

Main Power on/off

Output -

Ground

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