Kenwood FG-273 User Manual Download

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©PRINTED IN v \N

FUNCTION G E N E R A T O R

FG-273

INSTRUCTION MANUAL

K E N W O O D C O R P O R A T I O N

KENWOO

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Summary of Contents for FG-273

Page 1: ... PRINTED IN v N FUNCTION GENERATOR FG 273 INSTRUCTION MANUAL K E N W O O D C O R P O R A T I O N KENWOOD ...

Page 2: ... 3 F E A T U R E S 3 PRECAUTIONS 4 SPECIFICATIONS 5 O P E R A T O R S CONTROLS AND INSTRUTONS 8 Front Panel 8 Rear Panel 13 MAINTENANCE 14 A p r o d u c t o f KENWOOD CORPORATION 17 5 2 chome Shibuya Shibuya ku T o k y o 150 Japan 2 ...

Page 3: ...ty 5 Equipped with a 6 segment L E D oscillation frequency display and a counter covering the range from 5 Hz to 10 MHz 6 Applying voltage from 0 to 10 V to the V C F IN connector implements external sweep as well as output frequency control 7 The log sweep and linear sweep function provides sweep frequency control up to max 1000 1 Sweep frequency is variable from 0 5 Hz 2 seconds to 50 Hz 20milli...

Page 4: ...al vibrations Near devices which irradiate strong magnetic forces or pulse voltage 3 Do not repeat switching on and off the Generator 4 Follow the instructions in section MAINTENANCE if the supply voltage is to be changed 2 The F G 2 7 3 operates immediately after turning on power For accurate measurement however wait until it warms up sufficiently after pressing the POWER switch 4 ...

Page 5: ...requency Control V C F Input Voltage 0 to 10 frequency increases with positive voltage max 20 V D C AC peak Frequency Variable Range 1000 1 or more Symmetry Variable Range 1 1 to 40 1 or more DC Offset 10V open circuit 5 V into 50 O continuous variable Polarity Inverted or non inverted SINE WAVE Distortion 1 or less 10 Hz to 100 kHz Output Frequency Response Within 1 0 dB up to 100 kHz into 50 O a...

Page 6: ...continuous variable External sweep By means of V C F input F R E Q U E N C Y COUNTER CHARACTERISTICS Frequency Range 5 Hz to 10 MHz 1Osec 1 sec 0 1 sec 0 01 sec Accuracy Reference clock accuracy 1 count Stability 2x10 5 or less 0 to 40 C Input Sensitivity 30 mV r m s 5 Hz to 10 MHz Max Input Voltage 150V r m s at 1kHz Input Impedance OdB Approx 500k l 20 dB Approx 1MX1 OUTPUT CHARACTERISTICS Outpu...

Page 7: ...mption Approx 20 VA ENVIRONMENTAL CONDITIONS Storage Temperature 2 0 to 60 C 70 or less Operating Temperature 0 to 40 C 80 or less With Specifications 23 5 C 70 or less SIZE WEIGHT Dimensions W H D 240x 64 x 190 mm Weight 1 8 kg ACCESSORIES Instruction Manual 1 AC cable 1 Fuse 0 3 A T 1 0 2A 1 7 ...

Page 8: ...OPERATOR S CONTROLS AND INSTRUCTIONS Fig 1 8 FRONT PANEL ...

Page 9: ... or 0 01 s is selected with the gate time selector switch assembly F R E Q U E N C Y Control Variable potentiometer varies frequency within the range selected with the Freqoency R A N G E selector switch assembly The dial is scaled from 0 2 to 2 0 S W E E P WIDTH P U L L ON Control Pulling the knob selects internal sweep Rotating it controls sweep width Pushing the knob selects external sweep whic...

Page 10: ...th wave of triangle wave and asymmetric sine wave of sine wave Pulling this knob inverts the phase polarity Note Note that controlling this knob changes frequency Normal Inverted Normal Inverted W a v e f o r m o Counterclockwise Rotation Counterclockwise Rotation Clockwise Rotation Clockwise Rotation Square Wave Triangi Wave Sine Wave T T L Wave Fig 2 Effect of INVERT Pushbutton with respect to D...

Page 11: ...ise rotation admixes negative voltage Fig 3 iillustrates several types of waveform with the O F F S E T knob pulled and 50 ohm load connected Zero DC offset at max signal level Offset limit for non clipping signal Positive DC offset Negative DC offset Excessive offset Positive DC offset Negative DC offset Fig 3 Application Example of DC Offset 11 ...

Page 12: ...ed selects external input frequency Another press button released selects internal oscillation frequency C O U N T E R 2 0 dB Pushbutton Pressing the pushbutton attenuates counter input signal by 20 dB ATTENUATOR Pushbuttons Pressing these pushbuttons attenuates output signal by 20 dB and 40 dB respectively FUNCTION Selector Switch Assembly Selects output waveform out of sine wave triangl wave and...

Page 13: ...R E A R P A N E L Power Connector Connector for supplying AC power Use the dedicated power cord Fuse Holder Fuse holder for AC power supply Fig 4 13 ...

Page 14: ... to disconnect the power cord from the socket 2 1 How to Remove Case To open the case turn the unit upside down and remove four screws from the case base plate See Fig 5 Then lift the base plate to detach it 2 2 How to Change Supply Voltage The F G 2 7 3 is available for supply voltage of 100 120 220 and 240 V A C 50 60 Hz To change the supply voltage remove the case in accordance with item 2 1 ab...

Page 15: ...crews 4 Power transformer Front side Fig 6 Internal selection of Supply Voltage Rubber shoe Case Fig 5 Disassembly and Assembly of Case Fuse side Voltage selector plug Voltage terminal board 15 Rear side ...

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