background image

®  P O W E R Pushbutton 

Pressing this pushbutton turns on power.  L E D lights 

up to indicate power is on* 

( 2 )

  R A N G E  ( H z ) Selector Switch Assembly 

Selects the following seven ranges of oscillation 

frequency : 

X I : 

0.2 Hz 

to 

2 Hz 

X 1 0 : 

2 Hz 

to 

20 Hz 

X 1 0 0 : 

20 Hz 

to  200 Hz 

X 1 k : 

0.2 kHz  to 

2 kHz 

X 1 0 k : 

2 kHz  to 

20 kHz 

X 1 0 0 k : 

20 kHz  to  200 kHz 

X 1 M : 

0.2 MHz to 

2 MHz 

(3)  F U N C T I O N Selector Switch Assembly 

Selects output waveform out of sine wave (^V) , 

triangl wave  ( / \ , ) , and square wave (H—i) -

0

  A T T  - 2 0 dB Pushbutton 

pressing this pushbutton attenuates input signal by 

20 dB. 

Summary of Contents for FG-272

Page 1: ... PRINTED IN J N FUNCTION GENERATOR FG 272 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 INSTRUCTIONS 8 Front Panel 8 Rear Panel 13 MAINTENANCE 14 A p r o d u c t of KENWOOD CORPORATION 17 5 2 chome Shibuya Shibuya ku T o k y o 150 Japan 2 ...

Page 3: ...aw tooth waves and pulse waves It can invert the wave polarity 5 Applying voltage from 0 to 10V to the V C F IN connector implem nts external sweep as well as output frequency control 6 The linear sweep function provides sweep frequency control up to max 100 1 Sweep frequency is variable from 0 5 Hz 2 seconds to 50 Hz 20 milliseconds Sweep control is implemented by applying sweep signal to the V C...

Page 4: ...ollow the instructions in section MAINTENANCE Very hot and humid rooms if the supply voltage is to be changed Rooms with excessive mechanical vibrations Near devices which irradiate strong magnetic forces or pulse voltage 2 The F G 2 7 2 operates immediately after turning on power For accurate measurement however wait until it warms up sufficiently after pressing the POWER switch 4 ...

Page 5: ... 0 to 10 frequency increases with positive voltage Frequency Variable Range 100 1 or more DC Offset 10 V open circuit 5 V into 5 0 0 continuous variable Polarity Inverted or non inverted SINE WAVE Distortion Ratio 1 or less 10 Hz to 100 kHz Output Frequency Response Within 1 0 dB up to 100 kHz into 1 0 O at max output level Output Variable SQUARE WAVE Symmetry 3 or less at 100 Hz Rise Fall Time 10...

Page 6: ...ns of V C F input Input impedance 13 k O OUTPUT CHARACTERISTICS Output Voltage 20 Vpp or more open circuit 10 Vpp or more into 50 O Attenuator 2 0 dB step and continuous variable Impedance 50O 1 0 POWER SUPPLY Input Voltage 100 120 220 240 V A C 10 Max 250V AC Frequency 50 60 Hz Power Consumption Approx 20 V A ENVIRONMENTAL CONDITIONS Storage Temperature 2 0 to 60 C 70 or less Operating Temperatur...

Page 7: ... SIZE WEIGHT Dimensions W H O 240 x 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 FRONT PANEL Fig 1 8 ...

Page 9: ...of oscillation frequency X I 0 2 Hz to 2 Hz X 1 0 2 Hz to 20 Hz X100 20 Hz to 200 Hz X 1 k 0 2 kHz to 2 kHz X 1 0 k 2 kHz to 20 kHz X100k 20 kHz to 200 kHz X 1 M 0 2 MHz to 2 MHz 3 FUNCTION Selector Switch Assembly Selects output waveform out of sine wave V triangl wave and square wave H i 0 ATT 2 0 dB Pushbutton pressing this pushbutton attenuates input signal by 20 dB 9 ...

Page 10: ... the I N V E R T pushbutton with respect to DUTY control knob setting Fig 2 Effect of INVERT Pushbutton with respect to DUTY Control Knob Setting F o l a r i t y Normal Inverted Normal Inverted W a v e f o r r r 7 Counterclockwise Rotation Counterclockwise Rotation Clockwise Rotation Clockwise Rotation Square Wave Triangl Wave Sine Wave T T L Wave 10 ...

Page 11: ... S E T Control Pulling this knob admixes DC voltage with output signal Clockwise rotation admixes positive voltage Counterclockwise rotation admixes negative voltage Fig 3 illustrates several types of waveform with the D C 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 Excessive offset Fig 3 Application Example of DC Offset...

Page 12: ...Note that controlling this knob changes frequency SWEEP R A T E Control Controls sweep rate sweep frequency of the internal sweep oscillator SWEEP WIDTH Control Rotating the knob controls sweep width F R E Q U E N C Y Control Dial Variable potentiometer varies frequency within the range selected with the R A N G E selector switch assembly The dial is scaled from 0 2 to 2 0 SWEEP Selector Pushbutto...

Page 13: ...elector pushbutton is another press button released frequency of output signal can be varied Application of voltage from 0 to 10V varies frequency up to max 100 1 Power Connector Connector for supplying AC power Use the dedicated power cord Fuse Holder Fuse holder for AC power supply 13 Fig 4 ...

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 2 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 Fig 6 Internal Selection of Supply Voltage Rubber shoe Fig 5 Disassembly and Assembly of Case Case Fuse side Voltage selector plug Voltage terminal board Rear side Power transformer Front side 15 ...

Reviews: