G
FG-7002C / 5C
2MHz / 5MHz
Sweep Function GeneratorOperation Manual
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BENCH-TOP INSTRUMENT
www.calcert.com
[email protected]
1.888.610.7664
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Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...