B+K precision 2190E User manual
Model: 2190E
100 MHz Digital Storage
Oscilloscope
USER MANUAL
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i
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
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ii
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
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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.
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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 is ≤ 85 % relative humidity at 40 °C, 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.
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v
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
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vi
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.
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.
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vii
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.
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viii
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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ix
CE Declaration of Conformity
This instrument meets the requirements of 2006/95/EC Low Voltage
Directive and 2004/108/EC Electromagnetic Compatibility Directive with
the following standards.
Low Voltage Directive
-EN61010-1: 2001
-EN61010-031: 2002+A1: 2008
EMC Directive
-EN 61326-1:2006
-EN 61000-3-2: 2006+A2: 2009
-EN 61000-3-3: 2008
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