Страница 1: ...Instruments MANUAL Oscilloscope HM 203 7...
Страница 2: ...cus Linearity Raster Distortions T 1 Astigmatism Check T 1 Symmetry and Drift of the Vertical Amplifier T 1 Calibration of the Vertical Amplifier T 1 Transmission Performance Vertical Amplifier T 2 Op...
Страница 3: ...brown Cabinet W 285 H 145 D 380mm Lockable tilt handle 20 MHz Standard Oscilloscope 2 Channels max 1 mV div sensitivity Component Tester Timebase 0 1s div to 20ns div Variable Holdoff Alternate Trigg...
Страница 4: ...51 HZ52 HZ53 HZ54 selectable 10 1 10 1 HF 100 1 1 1 10 1 150 250 150 10 150 2 1 4 2 35 2 16 16 6 5 40 18 10 10 100 1 10 600 600 1200 600 1 2 1 5 1 5 1 2 HZ39 HZ57 tips 1 ground cable HZ40 Demodulator...
Страница 5: ...cted to the protective earth contact of the appliance inlet The instrument operates ac cording to Safety C ass three conductor power cord with protective earthing conductor and a plug with earthing co...
Страница 6: ...one number dialing code and telephone or direct number or department designation is stated for possible queries this helps towards speeding up the processing of guarantee claims Various important prop...
Страница 7: ...ments In general electrical engineering alternating voltage data normally refers to effective values rms root mean square value However for signal magnitudes and voltage designations in oscilloscope m...
Страница 8: ...ults in the max voltage DC i ACpeaJ It is very important that the oscilloscope input coupling is set to DC if an attenuator probe is used for voltages higher than 400V see page IVI6 Connection of Test...
Страница 9: ...the figure above results in a signal risetime When investigating pulse or square waveforms the critical feature is the risetime ofthe voltage step To ensure that transients ramp offs and bandwidth li...
Страница 10: ...the ver tical amplifier Because of their separate manufacture all attenuator probes are only partially compensated therefore accurate compensation must be performed on the oscillo scope see Probe comp...
Страница 11: ...n incorrect operation will not cause serious damage The pushbuttons control only minor functions and it is recommended that before commencement of operation all pushbuttons are in the out position Aft...
Страница 12: ...is therefore fully utilized when using the HZ51 52 and 54 probes without having to accept wave form distortions Prerequisite for this HF compensation is a square wave generator with short rise time ty...
Страница 13: ...s or lags the reference volt age A CR network before the test voltage input of the oscilloscope can help here The 1 MQ input resistance can equally serve as R here so that only a suitable capacitor C...
Страница 14: ...he AF generator or a demodulator However internal triggering is fre quently possible with normal triggering AT NORM button depressed using a suitable LEVEL setting and possibly also using the time var...
Страница 15: ...Sdiv If it is smaller than 1 div the LEVEL adjustment needs to be operated with a sensitive touch In the external normal triggering mode the same applies to approx 0 6V external trigger voltage amplit...
Страница 16: ...ormal operations the TRIG selector switch is operative The TV H position horizontal line and the TV V position vertical frame are used for video triggering The TRIG coupling switch is inoperable in th...
Страница 17: ...eral signal periods not only at the start of the sweep at the left screen edge but also at each signal period Holdoff time adjustment this off period cannot trigger the timebase Particularly with burs...
Страница 18: ...fuse protects the CT and the oscillo scope against mis operation e g device under test not dis connected from mains line supply In that case the fuse will blow For fuse replacement the oscilloscope ha...
Страница 19: ...GD N P N Transistor l If W For a transistor the figures b e and b c are important The figure e c can vary but a vertical line only shows short cir cuit condition These transistor test patterns are va...
Страница 20: ...citor33 iF Junction E C FET Single Diodes In circuit Semiconductors Rectifier Thyristor G A together Diode paraiieled by 680 Q 2 Diodes antiparallei Diode in serieswith 51Q B E paraiieled by 680Q B E...
Страница 21: ...socket Line triggering TRIG selector switch to Select trigger coupling with TRIG selector switch Trigger frequency ranges AC 10Hzto10MHz 3dB DC DCto10MHz 3dB HF 1 5kHzto40MHz 3dB LF DCto50kHz 3dB Comp...
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Страница 23: ...nd internal triggering from CH I Button depressed CH II only and internal trig from CH 11 In DUALand ADD mode Button selects internal trigger signal pushbutton switch ALT pushbutton switch Selects the...
Страница 24: ...n out of focus condition in the edge zone of the screen must be accepted It is limited by standards of the CRT manufacturer The same is valid for tolerances of the orthogonality the undeflected spot p...
Страница 25: ...r e g HZ23 is also necessary and this must be matched to the input impedance of the oscilloscope This attenuator can be made up locally It is important that this attenuator is shielded For local manuf...
Страница 26: ...DC offset If both vertical inputs are AC coupled to the same signal and both traces are brought to coincide exactly on the screen when working in the alternate dual channel mode then no change in disp...
Страница 27: ...n a verti cal straight line with approx 6div height should be dis played The above stated measurements have some toler ances They are dependent among other things on the mains iine voltage Trace Align...
Страница 28: ...ected from all voltage sources Normally the capacitors are discharged approx 6 seconds after switching off However with a defective instrument an interruption of the load is not impossible Therefore a...
Страница 29: ...display of signal or ripple voltages As noted before the regulated high voltage and the supply voltage for the final stages are highly dangerous Therefore it is recommended to use totally insulated ex...
Страница 30: ...to mechanical stresses shall not be depend ent upon the soldering alone To meet this requirement the bare ends of the wires must be pushed through the holes in the respective soldering tab bent over w...
Страница 31: ...ique 94800 VILLEJUIF Tel 1 46778151 Telex 260167 Telefax 1 47263544 Spain HAMEG S L Villarroel 172 174 08036 BARCELONA Telef 93 4301597 Telex 99816 Telefax 93 3212201 Great Britain HAMEG LTD 74 78 Col...
