INSTRUCTION
MANUAL
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MODELS 5105A
150 MHz (200MS/s) ANALOG/DIGITAL OSCILLOSCOPE
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Table of contents
Specifications ................................................................... 5
General Information ........................................................
Symbols ........................................................................
Use of tilt handle ..........................................................
Safety ............................................................................
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Type of signal voltage .....................................................
Amplitude Measurements ............................................
Total value of input voltage ..........................................
Time Measurements ....................................................
Connection of Test Signal .............................................
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Controls and Readout ...................................................... 9
First Time Operation ......................................................
Trace Rotation TR .......................................................
Probe compensation and use ....................................
Adjustment at 1kHz ....................................................
Adjustment at 1MHz ..................................................
Operating modes of the vertical
amplifiers in Yt mode .................................................
X-Y Operation ..............................................................
Phase comparison with Lissajous figures .................
Phase difference measurement
in DUAL mode (Yt) ......................................................
Phase difference measurement in DUAL mode .......
Measurement of an amplitude modulation ...............
Triggering and time base ..............................................
Automatic Peak (value) -Triggering ............................
Normal Triggering .......................................................
- Slope ....................................................................
Trigger coupling ...........................................................
Triggering of video signals ..........................................
Line / Mains triggering (~) ..........................................
Alternate triggering .....................................................
External triggering ......................................................
HOLD OFF-time adjustment ......................................
B time base (2nd time base) / ....................................
Triggering after Delay .................................................
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Oscilloscope
5105A
Vertical resolution .......................................................
Horizontal resolution ...................................................
Maximum signal frequency in storage mode ............
Alias signal display ......................................................
Test Instructions .............................................................
General ........................................................................
Cathode Ray Tube:
Brightness and Focus,
Linearity, Raster Distortion .........................................
Astigmatism Check ....................................................
Symmetry and Drift of the Vertical Amplifier ............
Calibration of the Vertical Amplifier ............................
Transmission Performance .........................................
of the Vertical Amplifier ..............................................
Operating Modes: CH.I/II, DUAL, ADD,
CHOP., INVERT and X-Y Operation ............................
Triggering Checks .......................................................
Time base ....................................................................
Hold Off time ..............................................................
Component Tester ......................................................
Trace Alignment ..........................................................
Adjustments ................................................................
RS232 Interface - Remote Control ...............................
Safety ..........................................................................
Operation ....................................................................
Baud-Rate Setting .......................................................
Data Communication ..................................................
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AUTO SET ....................................................................... 32
Component Tester (analog mode) ...............................
General ........................................................................
Using the Component Tester .....................................
Test Procedure ............................................................
Test Pattern Displays ..................................................
Testing Resistors ........................................................
Testing Capacitors and Inductors ...............................
Testing Semiconductors .............................................
Testing Diodes ............................................................
Testing Transistors ......................................................
In-Circuit Tests ............................................................
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St.250900-Hüb/tke
Storage mode ................................................................. 34
Signal recording modes .............................................. 35
Front control 5105A ....................................................... 39
Subject to change without notice
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General information regarding the CE marking
B&K instruments fulfill the regulations of the EMC directive. The conformity test made by B&K is based on the actual
generic and product standards. In cases where different limit values are applicable, B&K applies the severer standard. For
emission the limits for residential, commercial and light industry are applied. Regarding the immunity (susceptibility) the limits
for industrial environment have been used.
The measuring- and data lines of the instrument have much influence on emmission and immunity and therefore on meeting the
acceptance limits. For different applications the lines and/or cables used may be different. For measurement operation the
following hints and conditions regarding emission and immunity should be observed:
1. Data cables
For the connection between instruments resp. their interfaces and external devices, (computer, printer etc.) sufficiently shielded
cables must be used. Without a special instruction in the manual for a reduced cable length, the maximum cable length of a
dataline must be less than 3 meters long. If an interface has several connectors only one connector must have a connection to
a cable.
Basically interconnections must have a double shielding.
2. Signal cables
Basically test leads for signal interconnection between test point and instrument should be as short as possible. Without
instruction in the manual for a shorter length, signal lines must be less than 3 meters long. Signal lines must shielded (coaxial
cable - RG58/U). A proper ground connection is required. In combination with signal generators double shielded cables (RG223/
U, RG214/U) must be used.
3. Influence on measuring instruments.
Under the presence of strong high frequency electric or magnetic fields, even with careful setup of the measuring equipment an
influence of such signals is unavoidable.
This will not cause damage or put the instrument out of operation. Small deviations of the measuring value (reading) exceeding
the instruments specifications may result from such conditions in individual cases.
4. RF immunity of oscilloscopes.
4.1 Electromagnetic RF field
The influence of electric and magnetic RF fields may become visible (e.g. RF superimposed), if the field intensity is high. In most
cases the coupling into the oscilloscope takes place via the device under test, mains/line supply, test leads, control cables and/
or radiation. The device under test as well as the oscilloscope may be effected by such fields.
Although the interior of the oscilloscope is shielded by the cabinet, direct radiation can occur via the CRT gap. As the bandwidth
of each amplifier stage is higher than the total –3dB bandwidth of the oscilloscope, the influence RF fields of even higher
frequencies may be noticeable.
4.2 Electrical fast transients / electrostatic discharge
Electrical fast transient signals (burst) may be coupled into the oscilloscope directly via the mains/line supply, or indirectly via
test leads and/or control cables. Due to the high trigger and input sensitivity of the oscilloscopes, such normally high signals
may effect the trigger unit and/or may become visible on the CRT, which is unavoidable. These effects can also be caused by
direct or indirect electrostatic discharge.
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Subject to change without notice
General Information
General Information
This oscilloscope is easy to operate. The logical arrangement
of the controls allows anyone to quickly become familiar with
the operation of the instrument, however, experienced users
are also advised to read through these instructions so that all
functions are understood.
Immediately after unpacking, the instrument should be
checked for mechanical damage and loose parts in the interior.
If there is transport damage, the supplier must be informed
immediately. The instrument must then not be put into
operation.
The case, chassis and all measuring terminals are
connected to the protective earth contact of the
appliance inlet. The instrument operates according
to Safety Class I (three-conductor power cord with
protective earthing conductor and a plug with
earthing contact).
The main line plug shall only be inserted in a socket outlet
provided with a protective earth contact. The protective action
must not be negated by the use of an extension cord without
a protective conductor.
The main line plug must be inserted before connec-
tions are made to measuring circuits.
The grounded accessible metal parts (case, sockets, jacks)
and the main line supply contacts (line/live, neutral) of the
instrument have been tested against insulation breakdown
with 2200V DC.
Under certain conditions, 50Hz or 60Hz hum voltages can
occur in the measuring circuit due to the interconnection with
other main line powered equipment or instruments. This
can be avoided by using an isolation transformer (Safety Class
II) between the main line outlet and the power plug of the
device being investigated.
Most cathode-ray tubes develop X-rays.
However, the dose equivalent rate falls far below the
maximum permissible value of 36pA/kg (0.5mR/h).
Whenever it is likely that protection has been impaired, the
instrument shall be made inoperative and be secured against
any unintended operation. The protection is likely to be
impaired if, for example, the instrument
• shows visible damage,
• fails to perform the intended measurements,
• has been subjected to prolonged storage under unfavorable
conditions (e.g. in the open or in moist environments),
• has been subject to severe transport stress (e.g. do to
packaging).
Intended purpose and operating conditions
This instrument must be used only by qualified experts who
are aware of the risks of electrical measurement.
The instrument is specified for operation in industry, light
industry, commercial and residential environments.
Due to safety reasons the instrument must only be connected
to a properly installed power outlet, containing a protective
earth conductor. The protective earth connection must not
be broken. The power plug must be inserted in the power
outlet while any connection is made to the test device.
The instrument has been designed for indoor use. The
permissible ambient temperature range during operation is
+10°C (+50°F) ... +40°C (+104°F). It may occasionally be
subjected to temperatures between +10°C (+50°F) and -10°C
(+14°F) without degrading its safety. The permissible ambient
temperature range for storage or transportation is -40°C (-
0°F) ... +70°C (+158°F). The maximum operating altitude is
up to 2200m (non-operating 15000m). The maximum relative
humidity is up to 80%.
If condensed water exists in the instrument it should be
acclimatized before switching on. In some cases (e.g.
extremely cold oscilloscope) two hours should be allowed
before the instrument is put into operation. The instrument
Subject to change without notice
Symbols
ATTENTION - refer to manual
Danger - High voltage
Protective ground (earth) terminal
Use of tilt handle
To view the screen from the best angle, there are three
different positions (C, D, E) for setting up the instrument. If
the instrument is set down on the floor after being carried,
the handle automatically remains in the upright carrying
position (A). In order to place the instrument onto a horizontal
surface, the handle should be turned to the upper side of the
oscilloscope (C). For the D position (10° inclination), the handle
should be turned to the opposite direction of the carrying
position until it locks in place automatically underneath the
instrument. For the E position (20° inclination), the handle
should be pulled to release it from the D position and swing
backwards until it locks once more. The handle may also be
set to a position for horizontal carrying by turning it to the
upper side to lock in the B position. At the same time, the
instrument must be lifted, because otherwise the handle will
snap back to the previous position.
Safety
This instrument has been designed and tested in accordance
with IEC Publication 1010-1 (overvoltage category II, pollution
degree 2), Safety requirements for electrical equipment for
measurement, control, and laboratory use. The CENELEC
regulations EN 61010-1 correspond to this standard. It has
left the factory in a safe condition. This instruction manual
contains important information and warnings which have to
be followed by the user to ensure safe operation and to retain
the oscilloscope in a safe condition.
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