FG-30 / FG-32 USER'S MANUAL
Contents
1. NOTE After PULL SWEEP ON the trigger source of the oscilloscope must be changed to CH1 7 Turn the SWEEP WIDTH 9 to adjust the sweep width according to the display of CH1 on your oscilloscope to set the sweep width and sweep rate Set the FREQUENCY knob 6 at 0 05 to have the maximum sweep width gt 100 times It is most commonly used when doing audio or circuit bandwidth testing Pull out knob 9 the sweep mode will be changed from linear sweep to Log sweep The waveform displayed on CH1 will be log form 8 SYNC OUTPUT 10 The BNC will synchronously output a TTL signal to use as a signal source for an oscilloscope or counter etc 9 AMPL 11 Turn this knob to adjust the amplitude of the signal from the Main output 10 OFFSET KNOB 12 This sets the DC offset voltage of the signal from the Main output This knob will operate only at the PULL position C PULSE Generator Ref to Fig 5 3 FREQUENCY D D D 3 Fig 5 3 1 Switch ON the power switch 1 and make sure the pilot LED been lit 2 Connect the output BNC 3 to CH1 input of your Oscilloscope 3 Connect the SYNC OUT 4 BNC to CH2 input of your oscilloscope 4 Set the FUNCTION 5 selector at positive pulse position 5 Set the RANGE 6 at the desired frequency In this example set at 100K position 6 Set the FREQUENCY 7 at the desired frequency The frequency will be the product of the settings indicated by 6 an2. 80 to 20 lt 5 1Hz 100KHz Fall Time lt 60ns 8 MAIN OUTPUT Output Impedance 50Q lt 2 Accuracy Max output 20 Vp p No load 1V 10 Vp p 50Q load 0 5V Min output 0 1 Vp p No load and 0 05V 50 Q load Attenuator one 20dB switch lt 2 Accuracy 9 SYNCHRONOUS OUTPUT Output Impedance 50 Q lt 2 Accuracy Output Level TTL level gt 3Vp p fixed amplitude Fanout gt 20 Rise Time lt 30ns 10 VCF INPUT Input Impedance 0 10V Input Frequency DC 1KHz Input Frequency Variance 1 1 to 1 1000 11 SWEEP SYNCHRONOUS OUTPUT Output Impedance 1KHz lt 20 Output Waveform Linear or Log Sweep Ramp Wave Output Amplitude 10Vp p No load or 5Vp p IK Q load Output Frequency Continuous adjustment 0 2Hz 100Hz 12 SWEEP GENERATOR Sweep Form Linear or Log switchable Sweep Speed 5sec 10ms continuous adjustment Sweep Width 1 1 1 100 IV FG 30 FRONT PANEL DESCRIPTION D FG 30 RANGE FUNCTION uta FURGNION GENERATOR 00 ME oak ag E mL AMPL BS AO i f u ra a X TRE 1 4 FREQUENCY E d WE e f poo e 1520 W 25 o i SYNG OUTPUT of 30 eS 0 05 wo A DE CE a Fig 4 1 POWER SWITCH When pushed ON the switch will light the power pilot LED above the switch FREQUENCY Fine adjustment for the frequency The frequency will be the product of the scale indicated by 2 and 11 SYNC OUTPU
3. WIDTH Turn this knob to adjust the sweep width Push in for a linear sweep pull out for a log sweep Knob 8 must be pulled out or this control is disabled 10 FUNCTION WAVE SELECTOR Turn this to select the output waveform 11 FREQUENCY RANGE Main adjustment of the frequency The output frequency will be 10 times on each step changed The frequency of the output signal is the product of the scale indicated by 2 and 11 12 Hz the LED lit means the display units are Hz 13 KHz the LED lit means the display units are KHz 14 LED DIGITS 5 digits to indicate frequency generated or EXT input The units will be indicated by 12 or 13 selected by the CPU automatically 15 EXT TRIG The green LED indicates trigger condition LED Light Trigger level too high LED Dark Trigger level too low LED Flash Triggering state 13 16 COUPLING Indicates the source of the frequency display by 14 INT Displays the frequency of the signal generated by the FG 32 EXT AC HF Displays the external input high frequency signal Set at this position to strain out DC signal and low frequency harmonic signals Input will be only the expected high frequency signal EXT DC LF 100KHz Filter Displays the external input low frequency signal Set at this position to strain out signals higher than 100KHz and make the low frequency signal more stable 17 TRIG PULL INPUT 20 Trigger level adjustment from 2V t
4. to your FG 30 make sure that the input voltage setting is correct for your power source 11 CAUTION All the knobs on the FG 30 are set at push position unless specially marked pull A FUNCTION GENERATOR Ref to Fig 5 1 f GE BUZS FUNCTION GENERATOR Shz Func o4 lji O O 6 Fig 5 1 FREQUENCY a i ee i sve OUTPUT E f 1 Check that the AC line voltage selector plug on the rear panel of your FG 30 is in the correct position for the AC line voltage 2 Switch on the power switch and make sure that the power pilot LED is lit 3 Connect the OUTPUT BNC 4 of the FG 30 to the CH1 INPUT BNC of your Oscilloscope Adjust your Oscilloscope for best view of the waveform 4 Connect the SYNC OUTPUT BNC 5 to the CH2 INPUT BNC of your Oscilloscope and set the TRIG source of your Oscilloscope at CH2 position 5 Turn the FREQUENCY knob 6 of FG 30 from 0 05 to 3 0 position and check the waveform displayed on your Oscilloscope The frequency will vary slowly on each step 6 Turn the RANGE knob 7 clock wise from 10 to 1M The frequency will increase 10 times on each step If turning the knob counter clock wise from 1M to 10 the frequency will reduce 10 times on each step 7 Turn the FUNCTION knob 8 to change the waveform generated by FG 30 and displayed on oscilloscope CH1 will display the waveform as indicated by the FUNCTION knob 8 of FG 30 However CH2 will always display a TTL square wave only
5. 230V 10 50 60Hz FUSE 300mA Ventilation DC 12V 100mA Fan Dimensions 275 x 90 x 300mm Weight 2 5Kg Net Accessory Power cord operating manual 2 RAMP WAVE Frequency 0 5Hz 2 5MHz 5 digit LED display Max resolution 0 001Hz 6 steps selected by rotary switch Symmetry 80 Rise wave to 20 Fall wave lt 5 1Hz 100KHz Rise Wave Linearity lt 2 1Hz 100KHz 3 TRIANGLE WAVE Frequency 0 5Hz 3MHz 5 digit LED display Max resolution 0 001Hz Symmetry 50 Rise wave to 50 Fall wave lt 2 1Hz 100KHz 4 SINE WAVE Frequency 0 5Hz 3MHz 5 digit LED display Max resolution 0 001 Hz Distortion lt 2 1Hz 100KHz Harmonic Ratio lt 30dB 100KHz 3MHz Frequency Response lt 0 1dB up to 100KHz lt 1dB 100KHz to 3MHz 5 SQUARE WAVE Frequency 0 5Hz 3MHz 5 digit LED display Max resolution 0 001 Hz Symmetry 50 Positive half to 50 Negative half lt 2 1Hz 100KHz Rise Time lt 60ns 6 POSITIVE PULSE Frequency 0 5Hz 2 5MHz 5 digit LED display Width 0 4sec 100ns continuous adjustment Symmetry 20 to 80 lt 5 1Hz 100KHz Rise Time lt 60ns 7 NEGATIVE PULSE Frequency 0 5Hz 2 5MHz 5 digit LED display Max resolution 0 001Hz Width 0 4sec 100ns Symmetry 80 to 20 lt 5 1Hz 100KHz Fall Time lt 60ns 11 8 MAIN OUTPUT Output Impedance 50W lt 2 Accuracy Max Output 20Vp p No load 1V 10Vp p 50Q lo
6. AGE SELECTION II FG 30 GENERAL DESCRIPTION The FG 30 is a multi purpose highly reliable and low cost 3 MHz sweep function generator While being rugged and easy to use it also provides many convenient features which make it an ideal instrument for electronics education production and research and development laboratories FEATURES 1 Six output waveforms Unlike conventional function generators on the market the FG 30 provides 6 waveforms 2 Pulse generator Adjustable pulse width from 100ns to 0 4s make the FG 30 an ideal instrument for audio Video and other basic electronic circuit applications 3 Sweep generator Besides the outer VCF input function the FG 30 provides variable internal linear sweep and log sweep with sweep range over 1000 1 and sweep rate from 10ms to 5s Also the FG 30 provides single sweep or synchro sweep output function 4 Excellent heat dissipation This function generator was based on the continuous charge discharge of a capacitor to produce the output waveform Any change on the capacitor value will cause a different frequency to be generated Temperature rises within the instrument will also change the capacitance Thus keeping the inner temperature constant becomes a very important factor on the stability of the frequency generated 5 Safety FG 30 meets the regulations of CE GS UL etc II FG 30 SPECIFICATIONS p lt Ww Nn GENERAL SPECIFICATIONS Frequenc
7. FG 30 FG 32 USER S MANUAL I NOTICE BEFORE OPERATION II FG 30 GENERAL II FG 30 SPECIFICATIONS IV FG 30 FRONT PANEL DESCRIPTION V FG 30 OPERATING INSTRUCTIONS VI FG 32 GENERAL VII FG 32 SPECIFICATIONS VIII FG 32 FRONT PANEL DESCRIPTION IX FG 32 OPERATING INSTRUCTIONS X SCHEMATICS amp PARTS LIST 10 11 13 15 19 I NOTICE BEFORE OPERATION 1 Unpack the instrument After receipt of the instrument immediately unpack and inspect it for any shipping damage or missing accessories If any sign of damage or missing accessories are found immediately notify the dealer 2 Environmental These instruments are designed for Indoor Use only Normally operational temperature of these instruments is 10 C to 40 C 50 F to 104 F Operation outside of this temperature range may cause damage to the circuits Do not use these instruments in a place where strong magnetic or electric fields exist Such fields may adversely effect your measurements 3 Check the Line Voltage These instruments can operate on any one of the line voltages shown in the below table by inserting the line voltage selector plug in the corresponding position on the rear panel Before connection the power plug to an AC line outlet be sure to check that the voltage selector plug is set in the position corresponding to the desired line voltage CAUTION The instrument may not operate properly or may be damaged if it is connected to a w
8. T Synchronous Output A TTL level Square wave output with same frequency as the Main output BNC SWEEP OUTPUT Sweep signal output BNC It will operate independently whether the SWEEP is ON or OFF the BNC will output the sweep ramp wave The frequency is controlled by sweep rate 8 MAIN OUTPUT Function wave output BNC Output impedance is 50 Q maximum amplitude is 20Vp p for no load and 10Vp p for 50Q load 6 AMPLITUDE Turn the knob to adjust the output signal amplitude Pull out the knob to attenuate the output 10 times This affects the Main output 5 signal only DC OFFSET The knob controls the bias circuit it is set at OFF position in normal use Pull ON and turn to adjust the DC offset voltage SWEEP RATE Turn this knob to adjust the sweep rate from 5sec to 10ms the sweep output is BNC 4 If this knob is pulled out then the main output 5 and sweep output 4 are synchronous SWEEP WIDTH Turn this knob to adjust the sweep width Push in for a linear sweep pull out for a log sweep Knob 8 must be pulled out or this control is disabled 10 FUNCTION WAVE SELECTOR Turn this to select the output waveform 11 FREQUENCY RANGE Main adjustment of the frequency The output frequency will be 10 times on each step changed The frequency of the output signal is the product of the scale indicated by 2 and 11 V FG 30 OPERATING INSTRUCTIONS WARNING Before applying power
9. ad 0 5V Min Output 0 1 Vp p No load or 0 05Vp p 50Q load Attenuator One 20dB Attenuator lt 2 Accuracy 9 SYNCHRONOUS OUTPUT Output Impedance 50Q lt 2 Accuracy Output Level TTL level gt 3Vp p fixed amplitude Fan Out gt 20 Rise Time lt 30nS 10 VCF INPUT Input Voltage 0 10V Input Frequency DC 1KHz Input Frequency Variance 1 1 to 1 1000 11 SWEEP SYNCHRONOUS OUTPUT Output Impedance 1K Hz lt 2 Output Waveform Linear or Log sweep ramp wave Output Amplitude 10Vp p No load or 5Vp p 1K Q load Output Frequency 0 2Hz 100Hz continuous adjustment 12 SWEEP GENERATOR Sweep Form Linear or Log switchable Sweep Speed Ssec 10ms continuous adjustment Sweep Width 1 1 1 100 13 COUNTER Display 5 digits 0 36 red LED display Max Resolution 0 001Hz Display unit Hz KHz Auto range Time base 20MHz Temperature coefficient lt 10ppm 5 Accuracy lt 0 002 Power Supply 5V 160mA Internal Counter Range Auto range with 4 resolutions 0 001Hz 0 01Hz 0 001KHz 0 01KHz Auto control by CPU Display 0 500Hz 3000 0KHz Auto select by CPU Gate time Variable 0 25sec 2sec Auto setting Min display digits 4 digits External Counter Max Input Voltage lt 250Vrms Input Impedance IM Q lt 2 Input Frequency 0 2Hz 60MHz Attenuator 20 26dB Attenuator Coupling AC HF For gt 100KHz frequency DC LF With 100KHz filter for frequ
10. age by pulling out the OFFSET knob 10 and turning it to adjust the DC offset voltage from 10V to 10V as desired Lf D FREQUENCY COUNTER Ref to Fig 9 4 2 FG 32 Sue FUNCION OSYSSATOR COM AUTE FANGE ECU RANGE FUNCTION ER aK 10K y a fon 4 4 J00K AA y aN ASIS gu ll o E gt OFFSET AMPL eT j l je EXT INPUT SYNC DC G60NHZ OUTPUT OUTPUT Fig 9 4 1 Switch on the FG 32 and the 5 digit LED display lights up 2 COUPLING 3 The frequency counter has 3 coupling options a INT To be used with the internal function generator 0 5Hz to 3MHz b EXT AC HF To be used with an external high frequency 100KHz to 60MHz signal c EXT DC LF To be used with an external low frequency 0 2Hz to 100KHz signal 3 Connect the EXT INPUT BNC 4 to the external signal source 4 Set the TRIG level 5 to meet the input signal If the input signal is very large pull out the knob PULL INPUT 20 to have stable counting Max input is 20Vp p or 600Vp p with 20 engaged 5 EXT TRIG D 6 The green LED will indicate the operating condition of the FG 32 LED LIT the trigger level is higher than the input signal LED DARK the trigger level is lower than the input signal LED FLASH normal triggering 6 Display unit 7 The FG 32 will be on Hz or KHz automatically controlled by the CPU 18
11. but the frequency of CH2 will synchronously change as CH1 changes 8 Turn the AMPL knob 9 The amplitude of CH1 on your Oscilloscope will change but CH2 will not Pull out the knob the amplitude of CH1 will be reduced 10 times but CH2 will remain unchanged 9 Turn the OFFSET knob 10 the display on the Oscilloscope will be unchanged Pull out the knob The display of CH1 on the Oscilloscope will now be affected by the DC offset voltage as controlled from 10V to 10V by turning the knob The CH2 display will be unaffected Note that the CH1 display may be cut off if the DC offset voltage is too high B SWEEP GENERATOR Ref to Fig 5 2 000P FG 30 RANGE FUNCTION mhz FUNCTION GENERATOR 1K 10K A Eo 2100 4 4 jook M AY i AMPL 10 if Ca OS ll a FREQUENCY o SYNC OUTPUT oa u 0 05 D D O Fig 5 2 1 Switch on the FG 30 and connect it to your oscilloscope Main output 3 to CH 1 2 Connect the SWEEP output 4 BNC to CH2 3 Set the RANGE 5 of FG 30 at 100K position 4 Set the FREQUENCY 6 of FG 30 at 1 0 position 5 Set the FUNCTION 7 of FG 30 at sine wave 6 Turn the SWEEP RATE 8 knob the display of CH1 will remain unchanged Only the display of CH2 will be affected Since knob 8 is pushed in the sweep output will operate independently Pull out knob 8 to set FG 30 SWEEP ON and turn the knob to set the sweep rate from 5sec to 10ms Both CH1 and CH2 displays will be affected
12. d 7 In this example set 7 at 1 0 position Example The frequency 100K x 1 0 100K Hz The pulse width 1 frequency x 15 1 100KHz x 15 1 5uS The pulse output from SYNC OUTPUT TO CH2 will be the same 1 5uS width TTL pulse 7 Adjust the AMPL 8 knob to adjust the amplitude of the output pulse Or PULL out this knob to attenuate the output signal to 1 10 but the CH2 SYNC OUTPUT will not affected 8 PULL OUT the OFFSET 9 knob and turn to adjust the DC offset voltage if necessary CH2 will not be affected by this 9 Set the FUNCTION 5 selector to negative pulse and operate as steps 5 6 7 and 8 as above VI FG 32 GENERAL DESCRIPTION The FG 32 is a super deluxe function generator combined with a 5 digit high resolution 60MHz counter It is rugged easy to use has excellent heat dissipation and has high stability The FG 32 is a 4 in 1 instrument the 4 kinds of electronic instruments are described below 1 Function Generator 6 waveforms selected by rotary switch instead of push button to prevent mis touch or bad connection Maximum output 20Vp p No load and Minimum output 0 1 Vp p No load 2 Pulse Generator FG 32 provides positive pulse and negative pulse output Maximum output 20Vp p No load Frequency is displayed by LEDs pulse width is from 0 4sec to 100ns This will meet most of your Audio Video and other basic electronic application requirements 3 Sweep Generator FG 32 provide
13. d frequency can be varied by turning the frequency knobs The display of CH1 will be a sweep wave and the sweep speed will depend on the sweep rate NOTE After PULL SWEEP ON the trigger source of the oscilloscope must be changed from CH2 to CH1 Turn the SWEEP WIDTH 9 to adjust the sweep width according to the display of CH1 on your oscilloscope to set the sweep width and sweep rate Set the FREQUENCY knob 6 at 0 05 to have the maximum sweep width gt 100 times It is most commonly used when doing audio or circuit bandwidth testing Pull out knob 9 the sweep mode will be changed from linear sweep to Log sweep The waveform displayed on CH1 will be log form The AMPL 8 and FUNCTION 10 knobs will operate normally Before activating sweep mode PULL SWEEP ON the frequency is displayed on the 5 LED digits as in Function Generator mode this frequency will be the start frequency of the sweep After PULL SWEEP ON the sweep condition including frequency waveform and sweep mode etc will be observed on the CRT of the Oscilloscope The LED display on the FG 32 will vary continuously VCF INPUT 11 Set the sweep rate switch at PUSH position to set FG 32 to normal generator mode Connect the sweep output BNC to VCF INPUT BNC and check the waveform displayed on the scope CH1 The waveform displayed will be the sweep wave When the VCF input is a sine wave from another generator the FG 32 output will be frequency modula
14. ency lt 100KHz Range The same as internal counter Min display digits 4 digits Gate Time 0 25sec 10sec Auto setting depends on the input frequency Sensitivity lt 30mVrms 1MHz 12 VIII FG 32 FRONT PANEL DESCRIPTION BO O OOOO OFFSET AMPL COUPL WG EXT INPUT A NT a DC 60MHz 0000 00O Fig8 1 jul POWER SWITCH Push the switch ON and the LED digits 14 will light to indicate power ON 2 FREQUENCY Turn this knob to set the desired frequency generated This knob is for fine adjustment UY SYNC OUTPUT Synchronous Output A TTL level Square wave output with same frequency as the Main output BNC 4 SWEEP OUTPUT Sweep signal output BNC It will operate individually whether the instrument was under sweep mode operation or not 5 MAIN OUTPUT Function wave output BNC Output impedance is 50 Q maximum amplitude is 20Vp p for no load and 10Vp p for 50Q load 6 AMPLITUDE Turn the knob to adjust the output signal amplitude Pull out the knob to attenuate the output 10 times This affects the Main output 5 signal only 7 DC OFFSET The knob controls the bias circuit it is set at OFF position in normal use Pull ON and turn to adjust the DC offset voltage 8 SWEEP RATE Turn this knob to adjust the sweep rate from 5sec to 25ms the sweep output is BNC 4 If this knob is pulled out then the main output 5 and sweep output 4 are synchronous 9 SWEEP
15. loscope frequency varies correspondingly 5 Turn the FUNCTION knob 8 to select the waveform output to CH1 of your Oscilloscope CH2 will always be a TTL square wave 6 Turn the AMPL knob 9 to adjust the amplitude of the signal output to CH1 Pull out the knob the amplitude of CH1 will be reduced 10 times 20dB but CH2 Sync output signal will remain unchanged 7 Turn the OFFSET knob 10 the display on the Oscilloscope will be unchanged Pull out the knob The display of CH1 on the Oscilloscope will now be affected by the DC offset voltage as controlled from 10V to 10V by turning the knob The CH2 display will be unaffected 15 p B SWEEP GENERATOR Ref to Fig 9 2 Z 000 0 FG 3 Ne ERIK TRANCE 0 1K 10K mm mk A nA Gan US TRIG 2 i OUPLINS EXT INPUT q INT TRIGGER De eorHz Sy x Fig9 2 Switch on the FG 32 and the 5 digit LED display lights up Connect the main OUTPUT BNC 4 to the CH1 input BNC of you Oscilloscope Connect the SWEEP OUTPUT BNC 5 to the CH2 input BNC of your Oscilloscope and set the trigger source of the oscilloscope at CH2 Turn the SWEEP RATE knob 6 CH2 of the oscilloscope will display a linear saw tooth wave the frequency can be varied from Ssec to 10mS by turning the knob 6 CH1 will display the wave according to the FUNCTION switch position PULL out the knob 6 to set SWEEP ON The waveform of CH2 will remain unchanged but the displaye
16. ment since doing so may pose a great safety hazard 4 Do not obstruct the ventilation holes in the rear panel as this will increase the internal temperature 5 Never apply external voltage to the output BNC of the instrument 6 Excessive voltage applied to the input BNC may damage the instrument IT MAINTANCE GENERAL MAINTANCE Preventive Maintance Clean and recalibrate the INSTRUMENT on a regular basis to keep the instrument looking nice and working well Cleaning Remove any dirt dust and grime whenever they become noticable You can remove dirt from the outside covers with a soft cloth moistened with a mild cleaning solution Servicing If the instrument ever becomes inoperative or damaged refer servicing to a qualified repair facility FUSE K REPLACEMENT If the fuse blows the ON indicator will not light and the instrument will not operate Replace only with the correct value fuse For 110 125V line vlotage operation use an 600mA 250V fuse For 220 240V line voltage operation use a 300mA 250V fuse The fuse is located on the rear panel adjacent to the power cord receptacle Remove the fuseholder assembly as follows 1 Unplug the power cord from rear of scope 2 Insert a small screwdriver in fuseholder selt located between fuseholder and receptacle Pry fuseholder away from receptacle 7 When reinstallmg fi seholder be sure that the fuse is installed so that the correct line voltage is selected see LINE VOLT
17. o 2V When this knob is pulled out the input signal will be attenuated 20 times thus the input voltage can be 250Vp p Max 18 EXT INPUT External signal input BNC Input frequency 0 2Hz to 60MHz and Max input voltage is 250 Vp p when 17 is at PULL position 19 VCF INPUT External input DC signal used to control the frequency generated External input AC sweep signal to use it as an External sweep External input AC sine wave to use it as frequency modulation Input signal 0 10V lt 1KHz Input impedance 1K 2 14 IX GF 8046 OPERATION INSTRUCTIONS 11 WARNING Before applying power to your GF 8046 make sure that the input voltage setting is correct for your power source CAUTION All the knobs are set at PUSH position on operation if not special marked to be set at PULL A FUNCTION GENERATOR Ref to Fig 9 1 SYNC j iT OUTPUT STRUT 0 lt 4 BE Fig9 1 p Push the power switch on and make sure that the LEDs of the 5 digits are lit 2 Connect OUTPUT BNC 4 of GF 8046 to the CH1 input BNC of your Oscilloscope and the SYNC OUTPUT BNC 5 to CH2 and set the trigger source of your oscilloscope at CH2 3 Turn the FREQUENCY knob 6 from 0 05 to 3 0 You will find the LED display and the oscilloscope waveform will be changed slightly on each step 4 Turn the RANGE knob 7 from 10 to 1M You will find the LED display will change 10 times on each step and the oscil
18. rong AC line voltage Whenever line voltages are changed fuses must also be replaced SELECTOR LINE VOLTAGE FUSE 115V 100 125V_ 50 60Hz 600mA 230V 220 240V 50 60Hz 300mA Suggestions for successful instrument operation 1 Never place heavy objects on the instrument 2 Never place a hot soldering iron on or near the instrument 3 Never Insert wires pins or other metal objects into the ventilation fan 4 Never move or pull the instrument with the power cord or a probe cord Never move instrument when the power cord or a signal probe is connected to a circuit 5 If the instrument is used in a manner not specified by the manufacturer then protection mechanisms built into the instrument may not function properly WARNING The following precautions must be observed to help prevent electric shock n When the instrument is used to make measurements where high voltages are present there is always a certain amount of danger from electrical shock The person using the instrument in such condition should be a qualified electronics technician or otherwise trained and qualified to work in such circumstances 2 Do not operate the instrument with the cover removed unless you are a qualified service technician 3 The ground wire of the 3 wire AC power plug places the chassis and housing of the instrument at earth ground Use only a 3 wire outlet and do not attempt to defeat the ground wire connection or float the instru
19. s linear sweep or log sweep selection switch to select the sweep mode Maximum sweep width is 1 100 and sweep speed is from 5sec to 10ms The FG 32 also provides VCF input and synchronous Output Function 4 Frequency Counter The FG 32 has a 5 digit micro controlled counter FG 32 features include auto ranging auto gate time high resolution 0 001Hz high input impedance 1M Q and high bandwidth 0 2Hz 60MHz FG 32 also provides triggering features such as an adjustable trigger 2 5V with LED indicator AC DC selector 100KHz filter and input attenuator input x20 for 300Vrms high voltage signal The unit will also display the frequency of the signal produced by the function generator Ll cance PAI conse ACG CRETE oN Peo AAA wo Ea 2 ES FA Y E EXT 10 VII FG 32 SPECIFICATIONS 1 GENERAL SPECIFICATIONS A Generator Frequency 0 5Hz 3MHz with 5 digit LED display Max resolution 0 001Hz in 6 steps Waveform output Sine Square Triangle Ramp Positive Pulse and Negative Pulse 6 waveforms total Stability 0 1 15 minutes after power on 0 2 24hrs after power on B Counter Display 5 digits 0 36 red LED Max Resolution 0 001Hz Display unit Hz KHz Automatically controlled by CPU C Common Specification Limits of operation 0 C 40 C 10 80 R H Storage Environment 20 C 70 C 0 90 R H Power consumption 25W Power source AC 115V 10 50 60Hz FUSE 600mA AC
20. ted Be sure the frequency of the basic wave FG 32 output is higher than the external input signal 16 C PULSE WAVE GENERATOR Ref to Fig 9 3 2 00 RANGE FUNCTION 1K 10K Ne Ea wo yy 300 irl ak ee N a pal OFFSET AMPL O EXT INPUT NC DC 50MHz OUTPUT OUTPUT 4 Y WH EMO ms ls pe EXT PUT cas Iti CATIE D D D O Fig9 3 Switch on the GF 8046 and the 5 digit LED display lights up Connect the main OUTPUT BNC 4 to the CH1 input BNC of you Oscilloscope Connect the SYNC output 4 to CH2 and set the trigger source of the Oscilloscope on CH2 Set the FUNCTION knob 5 on positive pulse position Set the FREQUENCY 7 and RANGE 6 to the desired frequency displayed on the LED 2 Pulse width the pulse width equals 15 of the total period of the output signal If the frequency is in Hz then the pulse width will be in Sec If the frequency is in KHz then pulse width will be in mS etc EXAMPLE If the frequency displayed is 1K Hz then the pulse width 1 1KHz 15 0 15mS Set the FUNCTION knob on negative pulse position and similarly test the negative pulse Turn the AMPL 9 to adjust the amplitude of the signal output from the main output BNC 3 This signal will be 20dB when the knob 9 is pulled out The signal output from SYNC output BNC 4 will not be affected by this knob and will always be a TTL level Set the DC offset volt
21. y 0 5Hz 3MHz in 6 steps controlled by rotary switch Output Waveform Sine Square Triangle Ramp Positive Pulse and Negative Pulse 6 waveforms total Stability 0 1 15minutes after power on 0 2 24hrs after power on DC Offset Continuous Adjustment 10V at no load or 5V at 50 load Limits of Operation 0 C 40 C 10 80 R H Storage Environment 20 C 70 C 0 90 R H Power source AC 115V 10 50 60HZ FUSE 600mA AC 230V 10 50 60HZ FUSE 300mA Power Consumption 25W Dimensions 27 5 x 9 0 x 30 0 cm Weight 2 5Kg Net Accessory Power cord manual RAMP WAVE Frequency 0 5Hz 2 5MHz Symmetry 80 rise wave to 20 fall wave lt 5 1Hz 100KHz Rise Wave Linearity lt 2 1Hz 100KHz TRIANGLE WAVE Frequency 0 5Hz 3MHz Symmetry 50 rise wave to 50 fall wave lt 2 1Hz 100KHz Linearity lt 1 1Hz 100KHz SINE WAVE Frequency 0 5Hz 3MHz Distortion lt 2 1Hz 100KHz Harmonic Ratio lt 30dB 100KHz 3MHz Frequency Response lt 0 1dB up to 100KHz lt 1dB 100KHz to 3MHz SQUARE WAVE Frequency 0 5Hz 3MHz Symmetry 50 positive half to 50 negative half lt 2 1Hz 100K Hz Rise Time lt 60ns POSITIVE PULSE Frequency 0 5Hz 2 5MHz Width 0 4sec 100ns continuous adjustment Symmetry 20 to 80 lt 5 1Hz 100KHz Rise Time lt 60ns NEGATIVE PULSE Frequency 0 5Hz 2 5MHz Width 0 4sec 100ns Symmetry
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