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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 for FG-7002C (7digits 

LED for FG-7005C).

 The most benefit and satisfaction can be gained from the 

instrument by fully understanding its capabilities and versatility and becoming 

familiar with operation procedure. One of the best ways to initially gain this 

familiarization is to connect the generator to an oscilloscope. Observe the 

waveforms and notice the effects of the various controls on the waveforms. Use this 

manual as a reference until becoming accustomed to operating procedures. 

3-3. Use As Function Generator.   

1) Procedure 

A. Connect AC power cord into receptacle on rear panel and plug into AC inlet. 

B. To turn on equipment, push power on-off switch on.   

C. To make sure 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(button out) 

      Counter 

    INTERNAL(button out)

  

 

 

D. To select the desired frequency, set the Range Switch and FREQ. dial as 

follows; The output frequency equals the FREQ. dial setting multiplied by the 

Range Switch setting.

For example, a FREQ. dial setting of 0.6 and a Range switch setting of 10K 

produces a 6 KHz output(.6x10 = 6K). A FREQ. dial setting of 2.0 and a 

Range switch setting of 1M produces 2 MHz output(2.0x1M = 2M). 

E. And also it can display the desired frequency by 

6 digit LED

display(FG-7002C)

 – 

7digit LED display for FG-7005C. 

F. Select sine, square, or triangle wave output by pressing the corresponding 

FUNCTION button. FIG 3. illustrates the output waveforms and their phase 

relationships.

www.calcert.com

[email protected]

1.888.610.7664

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Содержание FG-7002C

Страница 1: ...G FG 7002C 5C 2MHz 5MHz Sweep Function Generator Operation Manual ____ BENCH TOP INSTRUMENT www calcert com sales calcert com 1 888 610 7664 0 5 10 15 20 25 30...

Страница 2: ...ervice 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 disaster or accident we charge y...

Страница 3: ...ummary Please take a moment to read these operating instructions thoroughly and completely before operating this instrument Pay particular attention to WARNINGS used for conditions and actions that po...

Страница 4: ...ble push control To associate the IN position of a bi stable push control with the corresponding function 4 OUT position of a bi stable push control To associate the OUT position of a bi stable push c...

Страница 5: ...External Control Of VCF 21 3 8 Programmed Frequency Selection 22 3 9 Use As Sweep Generator 22 3 10 Use As Externally Controlled Sweep Generator 23 3 11 Use As External Frequency Counter 23 4 MAINTEN...

Страница 6: ...trument to a pulse generator capable of generating rectangular waves or pulses ramp or sawtooth waves and skewed sine waves of variable duty cycle The sweep generator offers linear sweep with variable...

Страница 7: ...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 1K FREQUENCY COUNTER CHARACTERISTICS Display FG 7002C 6 dig...

Страница 8: ...DITY up to 85 to 40 C without temperature extremes causing condensation within the instrument z Storage Environment TEMPERATURE 20 C to 70 C HUMIDITY below 85 RH z Overvoltage Category CAT II Performe...

Страница 9: ...with protective earth contact PE contact If is available only a power socket without PE contact so a 2 conductor ac power then a power socket with PE contact must be installed before or the appliance...

Страница 10: ...7 7 0 26 3 6 3 3 7 5 7 3 6 0 2 6 7 3 a 7 a 0 a R a 0 0 1 1 7 21 K 7 7 0 1 6 2 67 6 3 0 0 1 0 0 3 0 7 2 17 1 1 0 2 7 3 7 2 7 3 7 7 7 0 26 5 4 1 5 1 a 0 R R R 2 17 5 7 17 3 7 14 1 13 11 6 8 9 12 20 2 1...

Страница 11: ...as an External Frequency Counter SWEEP RATE CONTROL On Off Switch For Internal Sweep Generator Adjusts Sweep Rate Of Internal Sweep Generator SWEEP WIDTH CONTROL Pullout And Adjusts Magnitude Of Swee...

Страница 12: ...6 6 211 7 2 10W 10W 4 7 2 3 5 17 7 5 6 2 A 5 51 1 6 7 25 2 7 6 1 a FIG 2 1 REAR PANEL FG 7002C POWER MAX S N VOLTAGE 230V 115V 0 5A F 0 2A F FUSE 20W 20W 7 2 3 5 17 7 5 6 2 A 5 1 5 5 3 21 7 6 2 6 0 5...

Страница 13: ...ent push power on off switch on C To make sure that the output is symmetrical and unaffected by the sweep generator set the following controls as below CONTROLS POSITION Sweep width OFF push Symmetry...

Страница 14: ...e TTL OUT BNC on the front panel This signal is unaffected by the AMPLITUDE ATTENUATOR or DC OFFSET TTL output is a square wave for use in digital circuits even though FUNCTION SWITCH is on sine or tr...

Страница 15: ...n 0 1 and 2 0 FG 7002C 5 0 FG 7005C 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...

Страница 16: ...scope 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 SY...

Страница 17: ...and RANGE switch b Adjust the longer duration portion of the waveform rest time for pulses rise time for ramp waves with the SYMMETRY control D If a specific pulse width specific fall time for ramp wa...

Страница 18: ...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 period measurement calculate the frequency which is equ...

Страница 19: ...correct DC offset which might damage semiconductors Another advantage is the extremely fast rise time and fall time of signal To use the TTL SYNC output connect a cable from TTL SYNC BNC on the Front...

Страница 20: ...0k 2M 5 50 500 5k 50k 300k 5M 0 02 0 2 2 20 200 2K 20K 0 05 0 5 5 50 500 5k 50k Frequency deviation versus VCF IN voltage for each model B For an example FG 7002C it is assumed that we wish to generat...

Страница 21: ...equency of generator is determined by the voltage applied to the VCF First of all this voltage is established by the setting of the FREQ dial Any voltage input drives the VCF TO A HIGHER FREQUENCY How...

Страница 22: ...n the external VCF voltage Using multiple DC voltage values which may be selected by a switch or electronic switching circuits may program a set of two or more specific frequencies This type of operat...

Страница 23: ...dial setting is 0 1 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...

Страница 24: ...ECIFIED MAXIMUMS 2 FREQUENCY COUNTER GROUND POINTS ARE CONNECTED DIRECTLY TO EARTH GROUND ALWAYS CONNECT FREQUENCY COUNTER GROUND ONLY TO GROUND POINTS IN THE CIRCUIT UNDER TEST NOTE THE OVERVOLTAGE C...

Страница 25: ...ument gets wet for any reason dry the instrument using low pressure clean air at less than 25 PSI Use care and caution around the window cover areas where water or air could enter into the instrument...

Страница 26: ...mulate the normal signal levels used in the circuit where signal is being injected This technique is equally applicable to non audio equipment Just connect an oscilloscope voltmeter or any other devic...

Страница 27: ...type of test because any departure from absolute linearity is readily detectable By using the triangle output the peak overload condition for an amplifier can be readily determined This overload condi...

Страница 28: ...at there is no signal clipping over the range of frequencies to be used C Select the square wave output and adjust the frequency to several check points within the pass band of the amplifier such as 2...

Страница 29: ...AMPLIFIER PERFORMANCE EVALUATION USING SQUARE WAVES 17 7 R R a a K K K 2 17 5 0 a 2 1 5 7 25 21 3 5 4 1 5 1 a 1 7 21 7 7 3 2 5 2 5 4 1 0 1 0 0 3 7 0 1 0 a a 7 R a 0 a 7 2 17 1 0 2 7 3 7 7 6 1 1 0 www...

Страница 30: ...R R a a 0 5 4 1 0 1 2 7 3 7 0 7 6 1 1 K 7 7 K K 0 1 0 0 a 2 1 5 7 25 7 2 17 1 a R a 0 a B Equivalent Circuit Of Test Set Up GENERATOR C Graph Of Results FIG 8 TESTING SPEAKER SYSTEMS AND IMPEDANCE NET...

Страница 31: ...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 will modify the results obtained...

Страница 32: ...3 5 4 1 5 1 a 1 7 21 7 7 0 a 2 1 5 725 21 3 2 5 2 5 4 1 0 1 0 0 3 7 0 1 0 a a 7 R a 0 a 0 2 7 3 7 7 6 1 1 0 7 2 17 1 FIG 9 DIGITALLY PROGRAMMED FREQUENCY SELECTION 5 8 Additional Applications The tria...

Страница 33: ...ponsibly to promote the sustainable reuse of material resources Household users should contact either the retailer where they purchased this product or their local government office for details of whe...

Страница 34: ...G G G G G G G U G www calcert com sales calcert com 1 888 610 7664 0 5 10 15 20 25 30...

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