INSTRUCTION MANUAL ¨ MODELS 5105A 150 MHz (200MS/s) ANALOG/DIGITAL OSCILLOSCOPE +
Table of contents Specifications ................................................................... 5 General Information ........................................................ Symbols ........................................................................ Use of tilt handle .......................................................... Safety ............................................................................ 4 4 4 4 Type of signal voltage .....................................................
KONFORMITÄTSERKLÄRUNG DECLARATION OF CONFORMITY DECLARATION DE CONFORMITE Herstellers Manufacturer Fabricant HAMEG GmbH Kelsterbacherstraße 15-19 D - 60528 Frankfurt Bezeichnung / Product name / Designation: Oszilloskop/Oscilloscope/Oscilloscope Typ / Type / Type: HM1507-3 mit / with / avec: - Optionen / Options / Options: ® Instruments Angewendete harmonisierte Normen / Harmonized standards applied / Normes harmonisées utilisées Sicherheit / Safety / Sécurité EN 61010-1: 1993 / IEC (CEI) 1010-1:
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.
General Information should be kept in a clean and dry room and must not be operated in explosive, corrosive, dusty, or moist environments. The oscilloscope can be operated in any position, but the convection cooling must not be impaired. The ventilation holes may not be covered. For continuous operation the instrument should be used in the horizontal position, preferably tilted upwards, resting on the tilt handle.
Type of signal voltage Type of signal voltage The following description of the 5105A relates to the analog-oscilloscope mode. Please note “Storage Operation”. The oscilloscope 5105A allows examination of DC voltages and most repetitive signals in the frequency range up to at least 150MHz (-3dB). negative points of a signal waveform. If a sinusoidal waveform, displayed on the oscilloscope screen, is to be converted into an effective (rms) value, the resulting peakto-peak value must be divided by 2x√2 = 2.
Type of signal voltage Examples: Set deflection coefficient D = 50mV/div 0.05V/div, observed display height H = 4.6div, required voltage U = 0.05x4.6 = 0.23Vpp. Input voltage U = 5Vpp, set deflection coefficient D = 1V/div, required display height H = 5:1 = 5div. Signal voltage U = 230Vrmsx 2?√2 = 651Vpp (voltage > 160Vpp, with probe 10:1: U = 65.1Vpp), desired display height H = min. 3.2div, max. 8div, max. deflection coefficient D = 65.1:3.2 = 20.3V/div, min. deflection coefficient D = 65.1:8 = 8.
Type of signal voltage set time coefficient Tc = 10µs/div, required wavelength L = 1:(15625x10-5) = 6.4div. Sine wavelength L = min. 4div, max. 10div, Frequency F = 1kHz, 3 max. time coefficient Tc = 1:(4x10 ) = 0.25ms/div, min. time coefficient Tc = 1:(10x103) = 0.1ms/div, set time coefficient Tc = 0.2ms/div, 3 -3 required wavelength L = 1:(10 x0.2x10 ) = 5div. Displayed wavelength L = 0.8div, set time coefficient Tc = 0.5µs/div, pressed X-MAG. (x10) pushbutton: Tc = 0.05µs/div, required rec. freq.
Controls and Readout Controls and Readout x10 or x100 attenuator probe is used, no termination is necessary. In this case, the connecting cable is matched directly to the high impedance input of the oscilloscope. When using attenuators probes, even high internal impedance sources are only slightly loaded (approx. 10MΩ II 12pF. Therefore, if the voltage loss due to the attenuation of the probe can be compensated by a higher amplitude setting, the probe should always be used.
Controls and Readout STORAGE MODE ONLY Additionally, AUTOSET automatically selects refresh mode (RFR) when SINGLE (SGL) or ROLL (ROL) function is in operation. Automatic CURSOR supported measurement In contrast to analog mode, AUTO SET also causes an automatic CURSOR line setting if time or frequency measurement has been selected and at least one signal period is displayed. Neither the signal frequency nor the pulse duty factor have an effect on the accuracy when CURSOR voltage measurement is chosen.
Controls and Readout when switched back to analog mode, the time base in analog mode will be set to the value selected in the digital mode (e.g. 2µs/div). 2.If a time base between 100s/div and 1s/div has been set in the digital mode and the mode is switched to analog, then the time base in analog mode is automatically set to 500ms/div. The rest is as described before. The X-MAG x10 setting remains unchanged when switched from analog to digital mode and vice versa.
Controls and Readout setting. An additional arrow symbol which points to the left is displayed to indicate post trigger operation. In POST TRIGGER condition the arrow symbol does not indicate a wrong X-POS. setting. A minus sign (-) placed in front of the percentage value, is displayed by the readout for POST TRIGGER mode indication. Proceeding from 100% pre trigger, the instrument switches over to 75% POST TRIGGER (”PT-75%”) after the PTR pushbutton is pressed. Then the trigger point is 7.
Controls and Readout amplitude variations ( e.g. noise) and frequency variations (Jitter) are minimized or eliminated in the display. SINGLE event capturing mode on or off. SINGLE mode is indicated by the associated SGL-LED. The accuracy of the mean value evaluation increases as the number of signal acquisition scans used for evaluation is increased. One can select the number between 2 and 512. The selected setting is displayed in the readout.
Controls and Readout and will only be terminated later. After termination the RES-LED extinguishes but the signal display remains. Briefly pressing the SINGLE pushbutton (RESET function) again restarts a new single event capture which then overwrites the previously recorded display. Single events recorded in DUAL mode can also be displayed in the XY mode when switched over to XY operation.
Controls and Readout time or wait approx. 10 seconds without pressing either pushbutton to leave that function. Attention: Make sure that the signal to be displayed is similar to the one that was present when the settings were stored. If the signal is different (frequency, amplitude) to the one during storage then a distorted display may result. If the SAVE or the RECALL pushbutton was depressed inadvertently, briefly press both pushbuttons at the same time or wait approx.
Controls and Readout NM - AT selection Press and hold the pushbutton to switch over from automatic to normal triggering (NM-LED above the pushbutton lit) and vice versa. If the LED is dark, automatic triggering is selected. Whether the peak value detection in automatic trigger mode is automatically activated or not, depends on the trigger coupling setting (TRIG.MODE (27)). The way the trigger point symbol in the readout responds on different LEVEL control knob settings indicates the situation: 1.
Controls and Readout in the opposite direction (ccw.). The available range is from 1mV/div up to 20V/div. The knob is automatically switched inactive if the channel related to it is switched off, or if the input coupling is set to GD (ground). The deflection coefficients and additional information regarding the active channels are displayed in the readout, i.e. “Y1: deflection coefficient, input coupling”.
Controls and Readout STORAGE MODE ONLY In XY storage mode the readout indicates “XY” and the RFR LED (9) is lit. No other STOR. MODE can be chosen. Instead of the time deflection coefficient, the readout displays the sampling rate (e.g. “100MS/s”) which can be selected by the TIME/DIV. knob (29). In contrast to analog mode, the INV. (38) pushbutton is active and the X signal can be inverted. Also the Y-POS. II (15) knob must be used for X position shift instead of the X-POS. (19) control.
Controls and Readout A (27) TRIG. MODE - Pushbutton with double function and indicator LEDs. Pressing the upper or lower pushbutton selects the trigger coupling. The actual setting is indicated by a LED and by the readout (“TR: source, slope, AC”). Each time the lower TRIG. MODE pushbutton is pressed the trigger coupling changes in the sequence: Turning the control knob clockwise switches the LED on and extends the hold off time until the maximum is reached (please note “Hold Off-time adjustment”).
Controls and Readout or CHP) displayed in the readout can be overwritten and changed to the opposite mode. This is carried out by simultaneously pressing and holding the CHI (22) and the DUAL (23) pushbutton. STORAGE MODE ONLY The time deflection ranges are different in storage mode and therefore must be considered (please note item (7)). In DUAL mode a selection between alternate or chopped signal capture is neither required nor possible.
Controls and Readout trigger coupling for the B time base. As the instrument contains a separate trigger unit for the B time base, the trigger level and slope can be set independently using the same controls used before for the A time base trigger setting. The trigger point is indicated again but has the added letter B in the readout. In delay trigger mode (DEL.TRIG.), the delay signal first must elapse. Then the next suitable signal slope (direction and height) starts the B time base.
Controls and Readout (~ symbol) to DC (= symbol) input coupling and vice versa, if the INPUT CHII (36) is not switched to GD (38). The AC/DC setting is displayed in the readout with the deflection coefficient. Probe factor: Pressing and holding the pushbutton selects the indicated deflection coefficient of channel I displayed in the readout, between 1:1 and 10:1. In condition 10:1 the probe factor is thus indicated by a probe symbol displayed by the readout in front the channel information (e.g.
Controls and Readout ON/OFF Pressing and holding the pushbutton switches both CURSOR lines on or off. As the cursor lines are part of the readout, they are visible only if the readout is switched on. ATTENTION! The following description relates to voltage measurement. To avoid misinterpretation, the measurement functions are available only in mono channel operation (channel I or channel II) and invert (INV) function inactive.
Controls and Readout (controllable) cursor in the sequence I - II - I, if TRK (track) mode is not active. The active cursor is indicated by a continuously dotted line. An interrupted dotted line indicates the inactive cursor. ∆ V / ∆ t: Pressing and holding this pushbutton changes from voltage to time (or frequency) measurement and vice versa. In XY mode the instrument is automatically set to ∆ V, as the time base is disabled and consequently time or frequency measurements can not be performed.
First Time Operation 1.2 SETUP This menu allows changes to the default settings regarding the instrument behavior during operation. The SETUP menu contains the submenus ”MISCELLANEOUS” and ”FACTORY”. 1.2.1 MISCELLANEOUS contains: 1.2.1.1 CONTROL BEEP ON/OFF. In OFF condition the acoustic signals actuated by the control limits are switched off. Note: The default setting is ON. If different conditions are required the setting must be performed each time after switching the oscilloscope on. 1.2.1.
First Time Operation these requirements when the CAL. pushbutton is depressed. The output provides 0.2Vpp ±1% (tr <4ns) for 10:1 probes. When the Y deflection coefficient is set to 5mV/div, the calibration voltage corresponds to a vertical display of 4 divisions (10:1 probe). The output socket has an internal diameter of 4.9mm to accommodate the internationally accepted shielding tube diameter of modern Probes and F-series slim line probes.
Operating modes of the vertical amplifiers in Yt mode In most cases oscilloscopes are used to display signals in Yt mode. Then the signal amplitude deflects the beam in vertical direction while the time base causes an X deflection (from left to right) at the same time. Thereafter the beam becomes blanked and fly back occurs. The following Yt operation modes are available: Single channel operation of channel I (Mono CH I). Single channel operation of channel II (Mono CH II).
Operating modes of the vertical amplifiers in Yt mode For greatest accuracy adjust the time base for slightly over one period and approximately the same height of both signals on the screen. The Y deflection coefficients, the time base coefficients and the trigger level setting can be used for this adjustment, without influence on the result. Both base lines are set onto the horizontal graticule center line using the YPOS. knobs before the measurement.
Triggering and time base a sine signal. Except when external trigger is used the trigger threshold can be stated as vertical display height in div, at which the time base generator starts, the display is stable, and the trigger indicator LED lights or flashes. The internal trigger threshold of the oscilloscope is given as ≤ 5div. When the trigger voltage is externally supplied, it can be measured in Vpp at that input. Normally, the trigger threshold may be exceeded up to a maximum factor of 20.
Triggering and time base signal and the lower frequency range. NR: Decreases the maximum trigger bandwidth for high frequency signals. As in DC coupling condition, lower frequency signal parts are not affected. LF: The LF coupling (low pass filter function) is often more suited for low-frequency signals than the DC coupling, because the (white) noise in the trigger voltage is strongly suppressed.
Triggering and time base Even with 180° phase difference between both signals, they appear with the same slope direction. If signals are applied with a high frequency ratio (difference), the trace intensity then becomes reduced if the time base is set to smaller time coefficients (faster sweep). This happens as the number of sweeps does not increase because it depends on the lower frequency signal, but with a faster sweep the phosphor becomes less activated.
Auto set the trace end (right side of the screen) are lost when the time base speed is increased (time coefficient reduced). The X expansion by 10 may also be used, but again the expansion factor is limited. The B time base solves such problems. First the A time coefficient should be set/adjusted to display a complete signal period.
Component Tester (analog mode) quick checks of semiconductors (e.g. diodes and transistors), resistors, capacitors, and inductors. Certain tests can also be made to integrated circuits. All these components can be tested individually, or in circuit provided that it is unpowered. The test principle is fascinatingly simple. A built-in generator delivers a sine voltage, which is applied across the component under test and a built-in fixed resistor.
Storage mode Testing Transistors is not defective. Three different tests can be made to transistors: base-emitter, base-collector and emitter-collector. The resulting test patterns are shown below. The basic equivalent circuit of a transistor is a Z-diode between base and emitter and a normal diode with reverse polarity between base and collector in series connection. There are three different test patterns. For a transistor the figures b-e and b-c are important.
Storage mode Signals captured and stored in storage mode can be called via the built-in RS232 interface for documentation purposes. For further information please note section “RS232 Interface - Remote Control”. instrument is adjusted for 25 dots per division. This eases processing and cursor measurement. Insignificant differences between the (analog) screen display and the (digital) data are unavoidable.
Test Instructions signal, the maximum frequency to be captured is 20MHz (50ns per period). reaching the left hand "stop" of the INTENS. control (particularly when in XY mode), while with the control at the right hand stop the focus and the line width are just acceptable. Alias signal display If, due to the time base setting, the sampling rate is too low, the display of an alias signal may occur. For example: A sine wave signal may be sampled only once per period.
Test Instructions (DC input coupling). Maximum deviations of 0.12div (3%) are permissible. If a x10 probe (1%) is connected between the 0.2V output and Y input, the deflection coefficient should be set to 5mV/div. Then the maximum deviation is 0.16div. With higher tolerances it should first be determined if the cause lies, within the amplifier or in the amplitude of the square-wave signal. On occasions it is possible that the probe is faulty or incorrectly compensated.
Test Instructions The correct slope of the sync pulse (front edge) must be selected and a suitable time coefficient setting must be chosen. The slope is then valid for both sync frequencies. Perfect TV triggering is achieved, when in both display modes the amplitude of the complete TV signal (from white level to the top of the line sync pulse) is limited between 0.8 and 6div and sync pulses of more then 0.5 div height.
RS232 Interface - Remote Control In case of disregard of the safety warnings contained in this manual, B&K refuses any liability regarding personal injury and/or damage of equipment. then transmits the RETURNCODE: 0 CR LF to the PC. In this status all settings (with the exception of those functions mentioned under “Controls and Readout”) can be controlled via the interface only. Operation The oscilloscope is supplied with a serial interface for control purposes.
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