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FG-7005C
Sweep Function GeneratorOperation Manual
88 88
Страница 1: ...Bench top Instrument FG 7005C Sweep Function Generator Operation Manual 88 88...
Страница 2: ...e of charge will provide repair service We charge customers for repair after the one year warranty period has been expired Provided that against any failure resulted from the user s negligence natural...
Страница 3: ...ct the EZ Digital service center or sales outlet Safety Summary Please take a moment to read these operating instructions thoroughly and completely before operating this instrument Pay particular atte...
Страница 4: ...13 3 7 External Control Of VCF 14 3 8 Programmed Frequency Selection 15 3 9 Use As Sweep Generator 15 3 10 Use As Externally Controlled Sweep Generator 16 3 11 Use As External Frequency Counter 16 4 M...
Страница 5: ...ep generator offers linear sweep with variable sweep rate and sweep width up to 100 1 frequency change The frequency response of any active or passive device up to 5 MHz can be determined 1 2 Technica...
Страница 6: ...put Sensitivity 100 mVrms Max Input Voltage 250 Vp p DIMENSION AND WEIGHT Dimension 255 W x 255 D x90 H mm Weight Approx 2 0Kg 1 3 Equipment Ratings Input Voltage Fuse Power Max 103 126V AC 50 60Hz F...
Страница 7: ...1 4 Supplied Accessories User s Manual 1 BNC Cable 1 Power Cord 1 Spare Fuse 1 specifications are subject to change without notice...
Страница 8: ...use ground terminal in rear panel for grounding instrument CAUTION THIS INSTRUMENT IS SET TO AC 230V BEFORE POWERING ON THIS INSTRUMENT MAKE SURE THE VOLTAGE OF THE POWER SOURCE IS AC 230V IN CASE OF...
Страница 9: ...t Sine wave Triangle Wave Or Square Wave Output ATTENUATOR Selects Output Level By 20 dB GATE TIME INDICATOR Gate Time Is Selected Automatically By Input Signal FREQUENCY DIAL Controls Output Frequenc...
Страница 10: ...Level Control Push In TTL Level TTL CMOS OUTPUT BNC TTL CMOS Level Output DC OFFSET CONTROLS Adds Positive Or Negative DC Component To Output Signal MAIN OUTPUT BNC Impedance 50 Ohm AMPLITUDE CONTROL...
Страница 11: ...that the output is symmetrical and unaffected by the sweep generator set the following controls as below CONTROLS POSITION Sweep width OFF push Symmetry OFF push DC offset OFF push Attenuator RELEASE...
Страница 12: ...50 load Remember that the combined signal swing plus DC offset is also limited to 10 V open circuited or 5 V into 50 Clipping occurs slightly next page these levels FIG 4 illustrates the various opera...
Страница 13: ...erate to high impedance A reasonably constant terminating impedance may be maintained while injecting signal into moderate and high impedance circuits 500 and up by adding a coaxial tee in the output...
Страница 14: ...3 4 1 Procedure A Setup generator as described for function generator operation Display the output of generator on an oscilloscope B Select the desired type of waveform with the Function Switches Pres...
Страница 15: ...quency counter but only with the SYMMETRY control set off before the pulse waveform is stretched Pulse width equals one half the time period of the square wave If the counter is not equipped for perio...
Страница 16: ...he VCF IN BNC will deviate the output frequency 5 KHz on the 100K range Following table summarizes the frequency deviation versus VCF IN voltage for all ranges HIGHEST FREQ FREQ DEVIATION FOR EACH RAN...
Страница 17: ...following consideration apply to all modes of operation involving external control of the VCF voltage controlled frequency A The output frequency of generator is determined by the voltage applied to t...
Страница 18: ...nerated in this manner To maintain the original accuracy each time the operation is repeated the FREQ dial must be accurately set to the same position Probably the easiest way to assure this common di...
Страница 19: ...INTERNAL COUNTER SELECTION This instrument can be used as a counter by Push in of INT EXT selection switch B EXT COUNT IN BNC accepts external frequency input C COUNTER DISPLAY Input frequency is dis...
Страница 20: ...out Install a new fuse of the SAME SIZE AND RATING Screwing fuse holder CAUTION MAKE SURE THAT THE RATED AND SPECIFIED FUSES ARE USED FOR REPLACEMENT 4 2 Adjustment and calibration It is recommendabl...
Страница 21: ...GE AT EACH POINT OF SIGNAL INJECTION IMPROPER DC OFFSET COULD BIAS A NORMALLY OPERATING STAGE TO CUT OFF AND MAKE IT APPEAR DEFECTIVE IMPROPER DC OFFSET COULD ALSO DAMAGE CERTAIN CIRCUITS A COUPLING C...
Страница 22: ...up of FIG 7 The 50 termination at the amplifier input is essential when using square waves to eliminate the ringing effects generated by the fast rise times B Using the triangle output set the AMPLIT...
Страница 23: ...FIG 7 AMPLIFIER PERFORMANCE EVALUATION USING SQUARE WAVES Square Wave Selected Dual Trace Oscilloscope Preferred...
Страница 24: ...A Test Set up FIG 8 TESTING SPEAKER SYSTEMS AND IMPEDANCE NETWORKS B Equivalent Circuit Of Test Set Up C Graph Of Results GENERATOR...
Страница 25: ...requency response measurement D In speaker testing a pronounced increase of voltage will occur at some low frequency This is the resonance frequency of the speaker systems FIG 8 The speaker enclosure...
Страница 26: ...g redundant circuits This is convenient in frequency shift keying FSK systems FIG 9 DIGITALLY PROGRAMMED FREQUENCY SELECTION 5 8 Additional Applications The triangle or ramp output of this instrument...
Страница 27: ...The specifications are subjected to change without notice...
