Detailed Product Description

sound frequency generator

TECHNICAL REFERENCE

1.       FREQUENCY RANGE: 20HZ-20KHZ IS DIVIDED TO 3 SCALE

X1   20HZ-200HZ

X10  200HZ-2KHZ

X100 2KHZ-20KHZ   

2.       OUTPUT FREQENCY DIFFERENCE: LESS THAN 5%

3.       VOLTAGE OUTPUT OF SINE WAVE:

A.      EXTENT OUTPUT: NO LESS THAN 3.5V CONTINOUE ADJUSTABLE, LOAD OF 300OHM

B.      FREQUENCY FEAGURE: WITHIN 3DB

C.      OUTPUT ATTENUATION: 0DB, 20DB, 40DB

D.      ATTENUATION ACCURCY: WITHIN 1.5DB

4.       POWER OUTPUT OF SINE WAVE: NO LESS THAN 5W, CONTINUE ADJUSTABLE 

5.       SQUARE OUTPUT: NO LESS THAN 3V-PP, CONTINUE ADJUSTABLE, LOAD OF 1KOHM

6.       TRIANGULAR OUTPUT: NO LESS THAN 2V-PP, CONTINUE ADJUSTABLE, FOR LOAD 10KOHM

7.       WORKINGCONDITION: TEMPERATURE 0-40C, CORRESPONDING HUMIDITY<=90%(40C)

8.       POWER SUPPILER: AC220V±10% 50HZ, POWER CONSUMPTION ABOUT 10VA

CONTROL BOARD

REFER TO DRAWING 1, THE LAYOUT OF SOUND FREQUENCY GENERATOR

1.       POWER SWITCH: TURN ON THE MACHINE. THE INSTRUMENT IS EXPECTED TO WORK, WITH THE INDICATED LIGHT ON

2.       FREQUENCY ADJUSTMENT: ON THE LEFT UP SIDE THERE IS A ROTATED BUTTON, AVAILABLE TO ADJUST THE FREQUENCY SIGNAL RANGE FROM 200HZ TO 200KHZ

3.       FREWUENCY MAG: THE SCALE SWIFT BUTTON IS A INTERLOCK BUTTON WITH 3 SCALES X1, X10, AND X100

4.       SUARE EXTENT: SQUARE SIGNAL OUTPUT ADJUSTABLE ROTATED BUTTON, CLOCKWISE ROTATED OUTPUT, CONTINUE INCREASED EXTENT

5.       SQUARE OUTPUT: SQUARE OUTPUT SIGNAL

6.       TRIANGULAR EXTENT: TRIGULAR SIGNAL OUTPUT ADJUSTABLE ROTATED BUTTON, CLOCKWISE ROTATED OUTPUT, CONTINUE INCREASED EXTENT

7.       TRIGULAR OUTPUT: TRIGULAR SIGNAL OUTPUT

8.       ATTENUATION OF SINE WAVE: ATTENUATION MACHINE OF THE SINE WAVE OUTPUT, WITH 3 SCALES OF 0DB, 20DB, 40DB, FOR RATING LOAD 300OHM, AND SIGNL ATTENUATION REPECTIVELY AT 0, 1/10, 1/100

9.       EXTENT OF SINE WAVE: SINE WAVE SIGNAL OUTPUT AND POWER OUTPUT ADJUSTABLE ROTATED BUTTON, CLOCKWISE ROTATED OUTPUT, CONTINUE INCREASED EXTENT

10.   VOLTAGE OUTPUT: SINE WAVE VOLTAGE OUTPUT

11.   POWER OUTPUT: OUTPUT TERMINAL OF SINE WAVE

PRINCIPLE AND CONSTRUCTION OF THE INSTRUMENT CIRCUIT

THE CORE OF THE SOUND FREQUENCY OF GENERATOR IS A HIGH CAPABILITY INTEGRATED CIRCUIT OF VOLTAGE CONTROLLED VIBRATED PRICISE WAVE GENERATOR, CAN PRODUCE SINE WAVE, SQUARE WAVE AND TRIANGULAR WAVE OUT CONNECTED WITH A FEW COMPONENTS. FOR VOLTAGE CONTROLLED VIBRATING TYPE PRECISE WAVE SHAPE GENERATOR OF INTEGRATED CIRCUIT 8-ROOT VOLTAGE, CAN CONTINUITY ADJUST SIGNAL FREQUENCY AND CHANGE THE CONNECTED VOLTAGE CONTROLLED VIBRATING TYPE PRECISE WAVE SHAPED GENERATOR OF INTEGRATED CIRCUIT 10-ROOT CAPACITANCE TO CHANGE THE FREQUENCE SCALE OF THE SIGNAL GENERATOR

THE TRANSFORMER CAN CHANGE THE AC 220V VOLTAGE TO 18V LOW VOLTAGE, THE COMMUTATED DC VOLTAGE SUPPLY THE POWER MAGNIFIER, MEANTIME THE REGULATED VOLTAGE SUPPLY THE POWER SUPPLIER OF INTEGRATED CIRCUIT

OUTER OF THE INSTRUMENT IS ABS STANDARD CASE, WITH POWER SUPPLIER AND THE FUSE CASE FIXED THROUGH THE BACK BOARD AND FRONT SINE WAVE/SQURE/TRIANGULAR SIGNAL COAXIAL OUTPUT SOCKET, AND ALSO COAXIAL OUTPUT SOCKET OF THE WIRES AND CLAMPS 

USAGE

1.       READ THRPUGH THE INSTRUCTIONS BEFORE OPERATION

2.       POWER VOLTAGE AC220V, CONNECTING THE POWER TURN ON WITH THE LIGHT ON TO NORMAL USE AFTER WARM-UP

3.       CONNECT THE AMPLIFIER TO THE POWER OUTPUT END, CHOOSE A FRENQENCY SCALE, ADJUST THE KNOP THE FREQENCY SIGNAL AT SUITABLE VOLUME

4.       SINE WAVE SIGNAL OUTPUT

WITH INPUT RESISTANCE AT APPROXIMATELY 300OHM OR HIGHER, CAN GET THE MAGNIFIED SIGNAL AT THE VOLTAGE OUTPUT END. CHOOSE THE NEEDED FREQUENCY MAGNIFIER BUTTON AND ADJUST TO THE SUITABLE FREQENCY, AVAILABLE CONTINITY CHANGED OUTPUT SINE WAVE SIGNAL VOLTAGE EXTENT. IF PLACE THE ATTENUATION BUTTON AT THE SCALE 20DB, AS RATING LOAD 300OHM, THE SIGNAL EXTENT WILL REDUCE 1/10, AT SCALE 40DB, SIGNAL EXTENT REDUCE 1/100. IF THE EXPERIMENT INPUT RESISTANT FAR LOWER THAN 300OHM, ESPECIALLY WHEN TO DRIVE THE AMPLIFIER, IT WILL GIVE THE SINE WAVE SIGNAL THROUGH THE OUTPUT TERMINAL, THE KNOP CONTINUITY ADJUST THE THE OUTPUT POWER, DO NOTHING WITH THE ATTENUATION BUTTON, WHEN LOAD 4OHM, THE MAXIMUM OUTPUT POWER CAN REACH 5W

5.       SQUARE/TRIAGULAR WIVE SIGNAL OUTPUT

THE SQUARE WAVE, TRIANGULAR WAVE ARE OUTPUT REPECTIVELY THROUGH THE SQUARE WAVE OUTPUT SOCKET AND TRIANGULAR WAVE OUTPUT SOCKET, SIGNAL EXTENT RESPECTIVELY CONTINUITY ADJUSTED BY THE SQUARE KNOP AND TRIANGULAR KNOP. RESISTANT REQUIREMENT ARE REPECTIVELY 1KOHM AND 10KOHM, SO TEST WIRE OF LOW RESISTANCE ARE NOT ALLOWED TO CONNECT

TAKE ATTENTION AND MENDING

1.       NO SHORT CIRCUIT AMONG THE OUTPUT SIGNAL CONNECTION, NO WIRES FAR LOWER THAN RATING LOAD CONNECTED

2.       SINE/SQUARE/TRIANGULAR ARE AVAILABLE BEING OUTPUT AT THE SAME TIME, PLEASE TAKE OUT THE NEEDLESS TO AVOID ANY UNNECESSARY INTERFERE AND FAULT

3.       WHEN OUTPUT SINE WAVE VOLYAGE, THE ACCURACY OF ATTENUATION RELEVANT TO THE LOAD, THE PRECISION OF TTENUATION IS ONLY AVAILABLE  WHILE THE RATING LOAD AT 300OHM

4.       COVER A THE INSTRUMENT AFTER USE AND PLACE IT IN SHADOW DRY CONDITION, CONNECT TO THE POWER AT LEAST ONCE EVERY HALF A YEAR, WITH TIME NO LESS THAN ONE HOUR. MEANWHILE MAKE A CHECK TO MAKE SURE MENDING IN TIME

5.       IF THE LIGHT NOT ON WHEN CONNECT TO POWER, CHECK THE WIRES AND THE FUSE

6.       IF NO POWER OUTPUT WHILE THE SINE WAVE VOLTAGE IS NORMAL, CHECK THE FUSE CONNECTED TO THE POWER OUTPUT TERMINAL. IT MAY DAMAGE ONCE THE POWER OUPUT EMPTY END CONNECTED TO THE GOUND END TO SHORT CIRCUIT