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  5. Operation Manual

EZ Digital FG-7005C Operation Manual

Manual is about: Sweep Function Generator

Summary of FG-7005C

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    Be nc h-t op in str um en t fg-7005c sweep function generator operation manual 88 88.

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    Warranty warranty service covers a period of one year from the date of original purchase. In case of technical failure within one year, our service center or sales outlet free of charge will provide repair service. We charge customers for repair after the one-year warranty period has been expired. P...

  • Page 3: Digital Co., Ltd.

    Introduction thank you for purchasing a ez product. Electronic measuring instruments produced by ez digital are high technology products made under strict quality control. We guarantee their exceptional precision and utmost reliability. For proper use of the product, please read this operation manua...

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    Contents 1. Product description ----------------------------------------------------------- ( 2 ) 1-1. Introduction ----------------------------------------------------------------- ( 2 ) 1-2. Technical specifications ------------------------------------------------- ( 2 ) 1-3. Equipment ratings ---...

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    1-1. Introduction this instrument is the most versatile signal source used as function generator, sweep generator, pulse generator and a frequency counter, offering a wide range of applications in both analog and digital electro- nics such as engineering, manufacturing, servicing, education and hobb...

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    Sweep function characteristics mode : linear width : variable from 1 : 1 to 100 : 1 rate : 0.5 hz to 50 hz (20 ms to 2 s) external vcf input : input voltage : 0 to 10 v input impedance : approx. 10 k Ω frequency counter characteristics display : 6 digit green led, gate time, mhz, khz, hz, mhz. Frequ...

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    1-4. Supplied accessories user’s manual ---------------------------------------------------------------------------- 1 bnc cable ------------------------------------------------------------------------------ 1 power cord ------------------------------------------------------------------------------ ...

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    2. Installation 2-1. Initial inspection this instrument was carefully inspected both mechanically and electrically before shipment. It should be physically free of damage. To confirm this, the instrument should be inspected for physical damage in transit. Also, check for supplied accessories. 2-2. C...

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    3. Operation 3-1. Controls, indicators and connectors fig 1. Front panel operator’s controls led display. Displays internal or external frequency. Internal/external switch. Push in : external frequency counter. Push out: internal frequency counter. Range switches. Frequency range selector. Function ...

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    Sweep. Vcf input bnc. Voltage controlled frequency input permits external sweep. Frequency control sweep rate control should be off when applying external voltage at this bnc. Symmetry control. Adjust symmetry of output waveform 1:1 to 10:1 with push/pull switch on. Ttl/cmos control. Selects ttl or ...

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    3-2. Operating instruction this instrument is capable of generating a wide variety of waveforms and counting an external frequency with high resolution of 6 digits led. The most benefit and satisfaction can be gained from the instrument by fully understanding its capabilities and versatility and bec...

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    Fig. 3 output waveforms and phase relationships i. A positive or negative dc component can be added to the signal at the 50 Ω bnc by use of the dc offset control, as required by the circuit into which the signal is being injected. J. A fixed amplitude ttl square wave is available at the ttl out bnc ...

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    C. It is easier to accurately set the freq. Dial if settings between 0.5 and 5.0 are used. Since the dial rotation overlaps ranges, it is not usually necessary to use readings below 1. Just change to a lower range and use a higher dial setting. Fig 4. Use of dc offset control d. The main output bnc ...

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    3-4. Use as pulse generator in a symmetrical square wave, sine wave, or triangle wave, the positive and negative transitions are of equal time duration, or 1:1 ratio. This is the condition when the symmetry control off. When the symmetry control is pulled and rotated, the positive transition can be ...

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    For ramp waves)with the symmetry control. D. If a specific pulse width (specific fall time for ramp wave)is not critical, but a specific repetition rate is required, the desired waveform may be obtained as follows; a. Observe the oscilloscope and adjust the symmetry control to obtain the approximate...

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    3-6. Use as fm signal generator 3-6-1. Procedure a. Set up equipment as described for function generator operation. Use the frequency and amplitude controls to set the carrier to the desired frequency and amplitude. B. Connect an ac modulating signal with no dc component to the vcf in bnc on the fro...

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    C. Remember that the value of vcf in signal is the peak to peak amplitude. 3-7. External control of vcf within a given range, the freq. Dial setting normally controls the output frequency of generator. However, applying voltage at the vcf in bnc on the front panel also may control it. There are thre...

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    Correlation between vcf in voltage and equivalent dial setting(dial set to 0.05) c. The freq. Dial is usually set to 0.05 when using external vcf control. This reduces the dialed vcf voltage to zero and allows the external vcf voltage to exercise complete control. It also reduces the effects of dial...

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    May be easier to set to the desired frequencies if the dial setting is 0.5 or higher. 3-10. Use as externally controlled sweep generator a ramp voltage, or any other type waveform desired, can be applied for externally controlled sweep generator operation. 0 to 10 volt swing will sweep frequencies o...

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    4. Maintenance caution it is essential for safety to properly maintain and service this instrument warning voltages within this instrument are sufficiently high to endanger life. Covers must not be removed except by persons qualified and authorized to do so and these persons should always take extre...

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    5. Others 5-1. Introduction because of the great versatility of this sweep/function generator, it would be impossible to include all of its possible applications in this manual, however ,many of the primary applications are described in detail to allow the user to adapt the procedures to other appli...

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    5-4. Amplifier overload characteristics the overload point for some amplifiers is difficult to determine by using sinewave input. The triangle waveform is ideal for this type of test because any departure from absolute linearity is readily detectable. By using the triangle output, the peak overload ...

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    Fig 7. Amplifier performance evaluation using square waves. Square wave selected dual trace oscilloscope preferred.

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    A. Test set-up fig 8. Testing speaker systems and impedance networks. B. Equivalent circuit of test set-up c. Graph of results generator.

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    5-6. Testing speakers and impedance networks this instrument can be used to provide information regarding the input impedance of a speaker or any other impedance network vs. Frequency. In addition, the resonant frequency of the network can be determined. A. Connect equipment as shown in test set-up ...

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    5-7. Digital frequency selection frequencies can be switched electronically by using the set-up shown in fig. 9. The preset voltages can be digitally selected and applied to the vcf in bnc. Although provision for two frequencies are shown, additional frequencies can be added using redundant circuits...

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    The specifications are subjected to change without notice..