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BK Precision 5105B, Instruction Manual, Page: 3 / 48

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BK Precision 5105B Instruction Manual Download Page 3

3

Subject to change without notice

C o n t e n t s

Specifications

5

Important hints

6

List of symbols used:

6

Positioning the instrument

6

Safety

6

Proper operation

6

CAT I

6

Environment of use.

6

Environmental conditions

7

Maintenance

7

Line voltage

7

Description of the controls

8

Basic signal measurement

10

Signals which can be measured

10

Amplitude of signals

10

Values of a sine wave signal

10

DC and ac components of an input signal

11

Timing relationships

11

Connection of signals

11

First time operation and initial adjustments  

12

Trace rotation TR

12

Probe adjustment and use

12

1 kHz – adjustment

12

1 MHz adjustment

13

Operating modes of the vertical amplifier

13

XY operation

14

Phase measurements with Lissajous figures

14

Measurement of phase differences in dual

channel Yt mode

14

Measurement of amplitude modulation

15

Triggering and time base

15

Automatic peak triggering (MODE menu)

15

Normal trigger mode (See menu MODE)

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Slope selection (Menu FILTER)

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Trigger coupling (Menu: FILTER)

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Video (tv triggering)

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Frame sync pulse triggering

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Line sync pulse triggering

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LINE trigger

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Alternate trigger

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External triggering

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Indication of triggered operation (TRIG’D LED)

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Hold-off time adjustment

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Time base B (2nd time base). Delaying,

Delayed Sweep. Analog mode.

18

Alternate sweep

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AUTOSET

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Component tester

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CombiScope

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DSO Operation

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DSO operating modes

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Memory resolution

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Memory depth

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Horizontal resolution with X magnifier

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Maximum signal frequency in DSO mode

23

Display of aliases

23

Vertical amplifier operating modes

23

Data transfer

23

Interface, Remote control
Selection of Baud rate

24

Data transmission

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Loading of new firmware

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General information concerning MENU

25

Controls and Readout

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150 MHz (1GS/s) Analog/Digital Oscilloscope                   4

24

Warranty and repair

Summary of Contents for 5105B

Page 1: ...INSTRUCTION MANUAL MODEL 5105B 150MHz 1GS s Analog Digital Oscilloscope ...

Page 2: ...uits under normal operation discharge high voltage capacitors before making connections or tests Some circuits retain high voltage long after the equipment is turned off 2 Use only a polarized 3 wire ac outlet This assures that the power supply chassis case and ground terminal are connected to a good earth ground and reduces danger from electrical shock 3 Don t expose high voltage needlessly Remov...

Page 3: ...of amplitude modulation 15 Triggering and time base 15 Automatic peak triggering MODE menu 15 Normal trigger mode See menu MODE 16 Slope selection Menu FILTER 16 Trigger coupling Menu FILTER 16 Video tv triggering 16 Frame sync pulse triggering 17 Line sync pulse triggering 17 LINE trigger 17 Alternate trigger 17 External triggering 17 Indication of triggered operation TRIG D LED 17 Hold off time ...

Page 4: ...om up to 40 000 1 Acquisition modes Single Event Refresh Average Envelope Roll Peak Detect RS 232 Interface Signal display Yt and XY Interpolation Sinx x Pulse Dot Join linear High fidelity even in digital mode Low noise signals dis played without additional noise Digital Mode One complete TV line and a ZOOM mag nified sector PAL Burst 150MHz 1GS s Analog Digital Oscilloscope ...

Page 5: ... Time base 50 ppm Display 1 MEMORY ZOOM max 40 000 1 Bandwidth X Amplifier 0 150 MHz 3 dB X Y phase shift 3 100 MHz Digital Storage Acquisition real time Analog channels 2 x 500 MSa s 1 GSa s interleaved Acquisition random sampling Analog channels 10 GSa s Bandwidth 2 x 0 150 MHz random Memory 1 M Samples per channel Operating modes Refresh Average Envelope Roll Free Run Triggered Peak Detect Reso...

Page 6: ...ings power distribution installations mains outlets motors which are permanently installed Measurement cat II Measurements in circuits directly connected to the mains household appliances power tools etc Environment of use The oscilloscope is destined for operation in industrial business manufacturing and living sites Important hints Please check the instrument for mechanical damage or loose parts...

Page 7: ... important properties of the oscilloscope regularly Only this will ensure that all measurements will be exact within the instrument s specifications Clean the outer shell using a dust brush in regular intervals Dirt can be removed from housing handle all metal and plastic parts using a cloth moistened with water and 1 detergent Greasy dirt may be removed with benzene petroleum ether or alcohol the...

Page 8: ...nt function of PO SITION 1 and 2 controls VOLTS DIV SCALE VAR knob 32 Channel 1 Y deflection coefficient Y variabel and Y scaling setting VOLTS DIV SCALE VAR knob 32 Channel 2 Y deflection coefficient Y variabel and Y scaling setting AUTO CURSOR MEASURE pushbutton switch 33 Calls menus and submenus for automatic and cursor supported measurement LEVEL A B knob 34 Trigger level control for time base...

Page 9: ...AT I CAT I STOP REM VAR VAR VAR x10 POWER POWER 20 1 2 3 4 5 6 7 8 9 10 11 12 13 16 19 36 26 38 29 37 35 34 31 32 33 18 15 27 23 25 21 28 24 22 30 17 14 F r o n t P a n e l E l e m e n t s B r i e f D e s c r i p t i o n PROBE ADJ socket 43 Square wave signal output for frequency compensation of x10 probes PROBE COMPONENT pushbutton switch 43 Calls COMPONENT TESTER mode settings and frequency sele...

Page 10: ...Care must be taken however when charging and discharging a large capacitor Dc coupling is preferable with all signals of varying duty cycle otherwise the display will move up and down depending on the duty cycle Of course pure DC can only be measured with DC coupling The readout will show which coupling was chosen stands for DC stands for AC Amplitude of signals In contrast to the general use of r...

Page 11: ...ead the time difference In the example it was 1 6 cm at 5 ns cm equals 8 ns rise time When measuring very short rise times coming close to the scope rise time it is necessary to subtract the scope s and if used the probe s rise times geometrically from the rise time as seen on the screen The true signal rise time will become tmeasured is the rise time seen trscope is the scope s own rise time 2 3 ...

Page 12: ... equipment are connected to safety ground so ground loops may exist Also most instruments will have capacitors between line and safety ground installed which conduct current from the live wire into the safety ground First time operation and initial adjustments Prior to first time operation the connection between the instrument and safety ground must be ensured hence the plug must be inserted first...

Page 13: ...fference amplifier with as well a high CM rejection as a high permissible CM range Therefore please observe the following rule Always look at the two signals in the one channel only or the dual modes and make sure that they are within the permissible input signal range this is the Prior to adjustment make sure that the trace rotation adjust ment was performed Connect the 10 1 probe to the input Us...

Page 14: ...etween the X and Y signals after reading a and b off the screen is possible using the following formulas and a pocket calculator with trigonometric functions This calculation is independent of the signal amplitudes Please note As the trigonometric functions are periodic limit the calculation to angles 90 degrees This is where this function is most useful Do not use too high frequencies because as ...

Page 15: ...nternal Use the time base variable or external triggering Reading a and b off the screen the modulation degree will result a UT 1 m and b UT 1 m When measuring the modulation degree the amplitude and time variables can be used without any influence on the result Triggering and time base The most important controls and displays for these functions are to be found in the shaded TRIGGER area they are...

Page 16: ...e of the polarity of the next slope Rising slope means that a signal comes from a negative po tential and rises towards a positive one This is independent of the vertical position A positive slope may exist also in the negative portion of a signal This is valid in automatic and nor mal modes Trigger coupling Menu FILTER Consult chapters MODE 20 AUTO LEVEL A B 19 FILTER 21 and SOURCE 22 in Controls...

Page 17: ... should be shielded without creating a shorted winding Alternate trigger This mode is selected with SOURCE 22 Alt 1 2 The readout will display Tr alt but no more the trigger point symbol indicating level and time position Instead an arrow pointing upwards will indicate the trigger time position if this lies within the screen area This trigger mode is to be used with greatest care and should be an ...

Page 18: ...sition time for most of the time the DSO will not see the signal Also in analog mode the signal itself will be seen on the screen in real time whereas a DSO can only show a reconstruction of the signal acquired some time later In analog mode thus the display will always start on the left Let us assume one period of a signal is displayed at a convenient time base setting Increasing the sweep speed ...

Page 19: ...t in component tester The test object is connected with 4 mm banana plugs In this mode the Y amplifiers and the time base are turned off Only individual components may be tested i e they must not be part of a circuit if voltages are to be applied to the BNC connectors If the components are part of a circuit this must be deenergized and disconnected from safety ground Except for the two test leads ...

Page 20: ...tion type MOSFETs and all JFETs the channel will conduct if prior to testing the gate was connected to the source The Rdson will be shown As this can be very low it may look like a plain short although the part is good With enhancement type MOSFETs an open will be seen in all directions as the threshold voltage G S is not available With power MOSFETs the antiparallel diode S D can be seen Tests of...

Page 21: ...ct an unknown signal shape one needs at least 1 or 2 points per centimeter in other words the useful signal frequency is only 1 10 to 1 20 at best An analog scope has a frequency response which follows closely the Gaussian curve this means in practice that also frequencies far beyond the 3 dB frequency will be shown reduced in amplitude but they will be shown This not only preserves fine detail of...

Page 22: ...ch were previously captured in Yt mode and protected against overwriting by STOP XY readout XY Signal capture is triggered in SINGLE REFRESH ENVELOPE and AVERAGE modes and untriggered in ROLL and XY modes The normal Refresh mode is similar to the operating mode of an analog scope Triggering will cause signal acquisition and display from left to right After the next acquisition the display will be ...

Page 23: ...ts per cm are necessary Display of aliases As explained the maximum sampling rate must be reduced for slow time base settings This may cause aliases If e g a sine wave is sampled only with one sample per period and if it should be synchronous with the sampling frequency a hori zontal line will be shown as each time the same signal point is sampled An alias may also take the form of a signal of muc...

Page 24: ...ass I 9 5 V max 400 mA The maximum signal on Tx Rx RTS and CTS is 12 V The RS 232 interface parameters are N 8 2 no parity 8 bits data 2 stop bits RTS CTS hardware protocol Selection of Baud rate Baud rate setting is automatic Range 110 to 115200 no parity 8 bits data 2 stop bits The first SPACE CR 20 hex OD hex character sent after PO WER UP will set the Baud rate This will remain set until PO WE...

Page 25: ...ws to change settings Also arrows may be shown which point to available submenus In some modes some pushbuttons or knob operations are meaningless and will hence not cause a menu display STOP Please note If a menu is shown some other information displayed in the readout may disappear this will reappear immediately upon leaving the menu Each menu is assisted by HELP texts which can be called by pre...

Page 26: ...S knob This knob controls various functions 2 1 Trace intensity if the FOCUS TRACE MENU pushbutton does not light the knob symbol Turn left for decreasing and right for increasing 2 2 If the knob symbol XXX of the pushbutton is illuminated the control will act for those functions displayed in the menu which were activated FOCUS TRACE MENU If the knob symbol will light after pressing this pushbutto...

Page 27: ...ignal data acquisition causes the previous signal capture results to be deleted and a new start of the signal capture MATH Only available in DSO mode This pushbutton calls the Mathematics menu and the Formula editor With the Mathematics menu stored signals may be mathematically processed either directly or with reference to other stored signals The results may be graphically displayed on the scree...

Page 28: ...l show rfr Signal acquisition may be stopped or started with the RUN STOP pushbutton The STOP pushbutton will be illuminated in stop A trigger will start a new acquisition which will overwrite the display of the former The display will remain on screen until the next acquisition This mode is available over the full time base range 50 s cm to 5 ns cm STOP Please note After changing the time base ac...

Page 29: ...to Off Provided single sweep was not selected Random Sampling will be automatically selected beginning at a certain sweep speed The time base setting will be indicated in the readout e g RS 10 GSa Random sampling with 10 GS s effective sampling rate the real time time base speed will be 5 ns cm Without Random Sampling RS Real Time Sampling will be used with a maximum sampling rate of 1 GS s one ch...

Page 30: ...terminate a menu on the spot In Man mode the menu can be left by pressing EXIT MENU by pressing another pushbutton by pressing the same pushbutton again with which the menu was called 10 3 Interface This menu shows the interface parameters which can be selected as usual 10 4 Display This submenu offers several modes of display 10 4 1 Dots In this mode the samples are shown as what they are i e dot...

Page 31: ...th both time bases on the screen Press the HOR pushbutton Search Press the CH1 2 CURSOR MA REF ZOOM pushbutton select the function TB B The pushbutton will light up green 13 1 6 Y position for ZOOM DSO mode This is the equivalent of the former in DSO mode where the function is called ZOOM The POSITION 1 control will assume the function of Y position control of the zoomed signal after the following...

Page 32: ...function CH1 control 16 1 Selection of vertical sensitivity Provided VAR on pushbutton CH1 is not illuminated the sensitivity will be calibrated Turning the control CCW will decrease turning it CW will increase the sensitivity 1 mV cm to 20 V cm can be selected in a 1 2 5 sequence The readout will display the calibrated sensitivity e g CH1 5mV Depending on the sensitivity selection the signal will...

Page 33: ...e sign degree measurement of degrees The distance between the long CURSOR lines is equal to 360 degrees and must be exactly as long as a signal period The measurement result will be determined from the distance between the reference line to the short auxiliary cursor line If appropriate with a negative sign For further information please consult Measurements of phase differences in dual channel mo...

Page 34: ...L A B knob The LEVEL control allows to set the trigger level i e the voltage resp signal level which will generate a trigger to start the time base whenever the signal passes that level In most Yt modes the readout will show a symbol the vertical position of which indicates the signal point which will trigger The trigger symbol will be parked on the second graticule line from the bottom in those m...

Page 35: ... following settings are available 21 1 1 Trig Filter AC The trigger signal is AC coupled via a large capacitor in order to reach a low cut off frequency Readout Tr Source Slope AC DC The trigger signal is DC coupled No peak triggering is possible Readout Tr Source Slope DC HF AC coupling with a small capacitor suppressing low frequency signals Hence the signal display and the trigger signal derive...

Page 36: ...is selected from which the trigger signal is to be taken The options depend on the actual mode of the scope 22 1 Edge Video Trigger 22 1 1 CH1 Conditions Analog or DSO mode Edge or Video selected CH1 will then be the trigger source no matter whether it is displayed or not Readout Tr CH1 Slope Filter TV 22 1 2 CH2 Conditions Analog or DSO mode Edge or Video selected CH2 will then be the trigger sou...

Page 37: ... the beginning of the intensified sector is the delay time This information is also displayed in the readout Dt and is an aid to find the position of the intensified sector which may be very small If time base B only is chosen the intensified sector is no longer visible but the DELAY function still can be used Without activated B Trigger function the B time base will be started after the A time ba...

Page 38: ... cm selection Select the menu Zoom by pressing HOR 30 and then Off in order to set the function of the knob TIME DIV SCALE VAR to time base A speed as in analog mode If Zoom Off is active always the whole memory will be displayed Turning the control CCW will decrease turning it CW will increase the time base speed Depending on the signal capture display the time base can be set from 50 s cm to 5 n...

Page 39: ... only set ready waiting for a signal trigger This has the advantage that any jitter is removed but the delay time adjustment will now only have the effect that the time base B display will jump from signal period to period In this setting a positive slope will trigger The trigger LEVEL A B knob will set the trigger level for B Only normal triggering and DC coupling are possible All parameters of t...

Page 40: ...tton will alternate between not inverted or inverted of the CH1 signal The readout will indicate an inverted display by placing a bar above the CH1 The trigger signal derived from Ch1 will not be affected by an inversion 31 4 Probe submenu Pressing the pushbutton will open the CH1 probe submenu 31 4 1 1 10 100 1000 A selection of probe attenuation factors from 1 to 1 000 is possible The value sele...

Page 41: ...siderably so there may be changes in the signal display when switching the mode 32 5 2 DSO mode The readout will indicate the sampling rate with which the a d converters digitise the input signals The appropriate sampling rate must be set depending on the signals and can be selected with the TIME DIV SCALE VAR knob although the time bases are disabled With high sampling rates there may be gaps in ...

Page 42: ...tor identified will be shown behind auto Probes without that special connector will be treated as 1 1 probes display auto 1 for those the factor must be manually set 33 5 Variable On Off If the variable is on VAR on the pushbutton will be illuminated and indicates that the sensitivity is now uncalibrated the readout will show instead of e g CH2 5 mV The results of cursor measurements will be ident...

Page 43: ...lling the menu Utilities Further information may be found in the section Probe adjustment and use in the chapter Operation and presettings PROBE ADJ pushbutton This pushbutton produces the menu Utilities two options are available 40 1 COMP Tester On Off If On is chosen analog mode is selected automatically A trace and a readout display Component Tester will appear In this mode the 4 mm connectors ...

Page 44: ...tion form on www bkprecision com within fifteen 15 days of purchase 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 including without limitation damages resulting fro...

Page 45: ...ccount must include payment in the form of a money order or credit card For the most current repair charges please visit www bkprecision com and click on service repair Return all merchandise to B K Precision Corp with pre paid shipping The flat rate repair charge for Non Warranty Service does not include return shipping Return shipping to locations in North American is included for Warranty Servi...

Page 46: ...NOTES ...

Page 47: ...NOTES ...

Page 48: ...22820 Savi Ranch Parkway Yorba Linda CA 92887 2005 B K Precision Corp 481 548 9 001 Printed in U S A ...

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