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DSB Freq

Set the modulating waveform frequency.

Frequency range: 2mHz~20kHz

Type DSB-AM

Amplitude

modulation.

Shape

Sine

Square

Triangle

UpRamp

DnRamp

Noise

Arb

Choose the modulating waveform.

To change the carrier waveform parameter,

press Sine, Square, Ramp, Arb

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Содержание SFG-20X

Страница 1: ...10 MHz Arbitrary Function Waveform GeneratorV User Manual SFG 2 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 2: ...le must meet IEC safety standards DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE R QRW RSHUDWH WKH LQVWUXPHQW LQ WKH SUHVHQFH RI DPPDEOH JDVHV RU IXPHV 2SHUDWLRQ RI DQ HOHFWULFDO LQVWUXPHQW LQ VXFK DQ HQYL...

Страница 3: ...ine voltage other than the indicated voltage can destroy the AC OLQH IXVHV RU FRQWLQXHG UH SURWHFWLRQ UHSODFH IXVHV RQO ZLWK WKRVH RI WKH VSHFL HG voltage and current ratings CAUTION This product uses...

Страница 4: ...personal injury and prevent damage to instrument Chassis earth ground symbol On Power This is the In position of the power switch when instrument is ON Off Power This is the Out position of the power...

Страница 5: ...panel layout and instructions versatile terminals direct graph interface built in instructions and help system have greatly simplified the operation process with the help of which users do not have t...

Страница 6: ...MHz 5 standard waveforms Sine Square Ramp Pulse Noise Self defined arbitrary waveform Multiple modulation function AM FM PM ASK FSK PWM DSB AM Sweep and Burst Multiple interfaces USB host USB device U...

Страница 7: ...6 2 Operating Your Generator 17 2 1 To Set Sine Signals 18 2 2 To Set Square Signals 23 2 3 To Set Ramp Signals 26 2 4 To Set Pulse Signals 29 2 5 To Set Noise Signals 33 2 6 To Set Arbitrary Signals...

Страница 8: ...98 3 9 Example 9 Generate an AM Wave 100 3 10 Example 10 Generate a FM Wave 102 3 11 Example 11 Generate a PM Wave 104 3 12 Example 12 Generate a FSK Wave 106 3 13 Example 13 Generate an ASK Wave 108...

Страница 9: ...General Inspection Handle Adjustment The Front Rear Panel To Set a Waveform To Set Modulate Sweep Burst To Set Output To Use Digital Input To Use Store Utility Help Function www GlobalTestSupply com...

Страница 10: ...ories If the contents are incomplete or damaged please notify your sales representative 3 Inspect the instrument In case any mechanical damage or defect or if the instrument does not operate properly...

Страница 11: ...rator please grip the handle by the sides and pull it outward Then make the handle rotate to the desired position Figure 1 1 Viewing Position and Carrying Position 1 3 The Front Rear Panel www GlobalT...

Страница 12: ...e 1 3 The front panel has a knob and functional keys The 5 blue grey buttons on the right side of the screen are menu buttons named F1 to F5 from up to down with the help of which you can enter differ...

Страница 13: ...Manual Trigger Key Sweep and Burst only 8 Output Enable Key 9 Output BNC Connector 10 Sync BNC Connector 11 Help Menu Key 12 Modulation Sweep Burst Keys 13 Utility Menu Key 14 State Storage Menu Key...

Страница 14: ...Series 1 USB Interface 2 AC Input Receptacle Figure 1 5 Display Interface Sine Wave is the default display signal Waveform Display area Parameter area Menu Options www GlobalTestSupply com Find Quali...

Страница 15: ...y option in the Sine menu 1 4 To Set a Waveform On the operation panel there is a set of buttons with waveform icon See Figure 1 6 The exercise below will help you familiarize with the waveform select...

Страница 16: ...utton and the waveform window displays square waveform SFG 20X Series Generator can generate square signal with a frequency from 1 Hz to 10MHz and variable duty cycle Figure 1 8 Square Signal Display...

Страница 17: ...1 9 Ramp Signal Display Interface As is shown in Figure 1 9 the default signal parameters are 1kHz frequency 4 0Vpp amplitude 0Vdc offset and 50 symmetry 4 Press Pulse button and the waveform window...

Страница 18: ...h 5 Press Noise button and the waveform window displays noise waveform SFG 20X Series Generator can generate noise signal with a band width up to 10MHz Figure 1 11 Noise Signal Display Interface As is...

Страница 19: ...arbitrary waveform signals with at most 16 kpts and 5 MHz frequency Figure 1 12 Arbitrary Waveform Signal Display Interface As is shown in Figure 1 12 the default signal parameters are 1 kHz frequency...

Страница 20: ...button the modulated waveforms will be generated The modulated waveform can be changed by modifying the parameters such as type internal external modulation depth frequency waveform etc SFG 20X Series...

Страница 21: ...SFG 20X Series generate signal with variable frequencies Figure 1 15 Sweep Waveform Display Interface 3 PressBurstbutton burstforsine square ramp pulseorarbitrarywaveform can be generated Figure 1 16...

Страница 22: ...tton activate or deactivate the output signal Term Explanation Burst Output waveforms with set cycle times Burst can last for certain times of waveform cycle N Cycle Burst or be controlled by external...

Страница 23: ...help you familiarize with the digital input function Figure 1 18 Front Panel Digital Input 1 Theupanddownkeysareusedtoshiftparametersandtheleftandrightkeys are used to shift digits 2 Keypad is used t...

Страница 24: ...Utility and Help Button 1 The Store Recall button is used to store waveform data and configure information 2 The Utility button is used to set the auxiliary system function change the output configure...

Страница 25: ...tting Started again This chapter covers the following topics Setting Sine Signal Setting Square Signal Setting Ramp Signal Setting Pulse Signal Setting Noise Signal Setting Arb Signal Output Modulated...

Страница 26: ...evel offset low level and phase Different sine signals are generated by setting these parameters As is shown in Figure 2 1 in the soft key menu select Freq Cursor is located in the frequency parameter...

Страница 27: ...se color 2 Input the desired frequency Use the keypad to input the parameter value directly and press the corresponding button to select the parameter unit Or you can use the direction button to selec...

Страница 28: ...eform it will be used sequentially If you want to set the waveform by high level or low level press the Ampl HLevel or Offset LLevel button again to switch into the high level or low level parameter t...

Страница 29: ...he offset shown on the screen when the instrument is powered is the default value or the set value beforehand When changing the function if the current value is valid for the new waveform it will be u...

Страница 30: ...Figure 2 5 Setting the Offset www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 31: ...are waveforms are frequency period amplitude high level offset low level phase and duty As is shown in Figure 2 6 select Duty Cursor is located in the duty parameter area in the parameter display wind...

Страница 32: ...the current value is valid for the new waveform it will be used sequentially 2 Input the desired Duty Cycle Function Menu Settings Explanation Freq Period Set the signal frequency or period The curren...

Страница 33: ...he desired value choose the unit and press the corresponding button The generator will change the waveform immediately Figure 2 8 Setting the Duty Cycle www GlobalTestSupply com Find Quality Products...

Страница 34: ...ency period amplitude high level offset low level phase and symmetry As is shown in Figure 2 9 in the soft key menu select Symmetry Cursor is located in the symmetry parameter area in the parameter di...

Страница 35: ...riod Set the signal frequency or period The current parameter will be switched at a second press Ampl HLevel Set the signal amplitude or high level The current parameter will be switched at a second p...

Страница 36: ...knob to input the desired value choose the unit and press the corresponding button The generator will change the waveform immediately Figure 2 11 Setting the Symmetry www GlobalTestSupply com Find Qua...

Страница 37: ...iod amplitude high level offset low level pulse width Duty and Rise Fall As is shown in Figure 2 12 in the soft key menu select PulWidth Cursor is located in the pulse width parameter area in the para...

Страница 38: ...ent parameter will be switched at a second press Offset LLevel Set the signal offset or low level The current parameter will be switched at a second press PulWidth Duty Set the signal pulse width or d...

Страница 39: ...rising edge shown on the screen when the instrument is powered is the default value or the set value beforehand When changing the function if the current value is valid for the new waveform it will be...

Страница 40: ...Figure 2 15 Setting the Rise edge www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 41: ...s are Stdev and mean As is shown in Figure 2 16 in the soft key menu select Stdev Cursor is located in the Stdev parameter area in the parameter display window and users can set the Stdev value here N...

Страница 42: ...Menu Explanations of Noise Waveform Function Menu Settings Explanation Stdev Set the signal standard deviation Mean Set the signal mean www GlobalTestSupply com Find Quality Products Online at sales...

Страница 43: ...menu The Arb signal consists of two types the system built in waveform and the user definable waveform The parameters for Arb waveforms are frequency period amplitude high level offset low level and...

Страница 44: ...hed at a second press Ampl HLevel Set the signal amplitude or high level The current parameter will be switched at a second press Offset LLevel Set the signal offset or low level The current parameter...

Страница 45: ...he Built in Waveform Press Arb Load Wform Built In and enter the following interface As is shown in Figure 2 22 there are five kinds of arbitrary waveform Function Menu Settings Explanation Built In S...

Страница 46: ...angle waveform Select Validate the built in waveform Function Menu Settings Explanation StairUp Select the built in stair up waveform StairDn Select the built in stair down waveform StairUD Select the...

Страница 47: ...t in square root waveform Root3 Select the built in Root3 waveform X 2 Select the built in X 2 waveform X 3 Select the built in X 3 waveform Sinc Select the built in sinc waveform Sinc sin x x Gaussia...

Страница 48: ...he built in hamming window waveform Hanning Select the built in hanning window waveform Kaiser Select the built in kaiser window waveform Blackman Select the built in blackman windows waveform Gaussia...

Страница 49: ...As is shown in Figure 2 27 use the direction keys or knob to choose the corresponding arbitrary waveform and press Select Figure 2 27 Stored Wform Display Interface Acot Select the built in inverse co...

Страница 50: ...ency deviation modulating waveform and carrier waveform In ASK users can set the Key Freq and carrier waveform In FSK users can set the key frequency Hop Freq and carrier waveform In PM users can set...

Страница 51: ...Percentage Modulation Modulation depth varies from 0 to 120 In the 0 modulation the output amplitude is the half of the set one In the 100 modulation the output amplitude is the same with the set one...

Страница 52: ...ype FM to enter the following menu Figure 2 31 Table 2 15 Menu Explanations of the FM Parameters Function Menu Settings Explanation FM Freq Set the modulating waveform frequency Frequency range 2mHz 2...

Страница 53: ...nstant The parameters for the ASK are as shown in Figure 2 32 Figure 2 32 Setting Interface of ASK Waveform Parameter Term Explanation Frequency Deviation The deviation should be equal to or less than...

Страница 54: ...ters Function Menu Settings Explanation Key Freq Set the frequency at which the output amplitude shifts between the carrier amplitude and zero internal modulation only 2mHz 50kHz Type ASK Amplitude sh...

Страница 55: ...FSK Waveform Parameter Press Mod Type FSK to enter the following interface Figure 2 35 Table 2 17 Menu Explanations of the FSK Parameters Function Menu Settings Explanation Key Freq Set the frequency...

Страница 56: ...ng waveform The parameters for the PM are as shown in Figure 2 36 Figure 2 36 Setting Interface of PM Waveform Parameter Press Mod Type PM enter the following interface Figure 2 37 Table 2 18 Menu Exp...

Страница 57: ...he FM are as shown in Figure 2 38 Figure 2 38 Setting Interface of PWM Waveform Parameter Press Mod Pulse PWM to enter the following menu Frequency range 2mHz 20kHz Phase Dev Range from 0 360 Type PM...

Страница 58: ...xplanations of the DSB AM Parameters Function Menu Settings Explanation PWM Freq Set the modulating waveform frequency 2mHz 20kHz Width Dev Duty Dev Set the width or Duty range Type PWM Amplitude modu...

Страница 59: ...kHz Type DSB AM Amplitude modulation Shape Sine Square Triangle UpRamp DnRamp Noise Arb Choose the modulating waveform To change the carrier waveform parameter press Sine Square Ramp Arb www GlobalTes...

Страница 60: ...cify Sweep can be generated by sine square ramp or arbitrary waveforms pulse noise and DC are not allowed Figure 2 42 Setting Interface of Sweep Waveform Parameter Press Sweep button to enter the foll...

Страница 61: ...uency changes from the start frequency to stop frequency Stop Freq Freq Span Set the stop frequency of the sweep Set the frequency span of the sweep Start Freq Mid Freq Set the start frequency of the...

Страница 62: ...gated signals gated burst is applied any waveform could be used but noise can only be used in Gated Burst Press Burst button to enter the following interface Set the waveform parameters by using the...

Страница 63: ...umber Start Phase Define the start point in a waveform The phase varies from 0 to 360 and the default setting is 0 For an Arbitrary Waveform 0 is the first waveform point Function Menu Settings Explan...

Страница 64: ...Infinite then a continuous waveform will be generated which will not stop until a trigger event happens If needed Burst Period will increase to cater to the specific number of cycles For an infinite c...

Страница 65: ...ted to enter the following interface Figure 2 48 Table 2 25 Menu Explanations of the Gated Burst Parameters Function Menu Settings Explanation NCycle Gated Set the NCycle mode Set the gated mode Polar...

Страница 66: ...oscopes Figure 2 49 Save and Read Interface Figure 2 50 Table 2 26 Menu Explanations of Save and Recall Page 1 2 Function Menu Settings Explanation File Type State Data The setting of the generator Ar...

Страница 67: ...ze the selected function including the arbitrary waveform frequency amplitude DC offset duty cycle symmetry and other modulation parameter used To save the instrument state the procedures are given as...

Страница 68: ...the USB Device into the USB interface on the front panel and the screen will show USB flash device plug in and storage menu will show USB Device A 2 Choose the USB Device Press Browser Directory move...

Страница 69: ...ss Store Recall Store to enter the following interface Enter the desired file name in the File Name frame In the middle of the figure below is the input keypad used to edit the file name Use the up an...

Страница 70: ...lphanumeric interface 2 Input the file name NEWFILE Use the Knob to adjust the cursor s horizontal position and the up and down keytoadjusttheverticalposition SelecttheCharacter N andpressSelect Funct...

Страница 71: ...en you have entered a wrong character move the cursor to the wrong character to be deleted and press Delete to remove it Reenter the file name 4 Press Save to finish and save the file www GlobalTestSu...

Страница 72: ...rse The System Setting provides the setting for Language Display Beep Screen Guard Format Power System Configure and default setting Test provides the self testing and calibration function Press Utili...

Страница 73: ...se note that there is a DC On sign at the middle left of the screen Figure 2 57 DC Setting Interface Function Menu Settings Explanation System Set the system configuration Test Cal Test and calibrate...

Страница 74: ...e IO interface The equipment stands for RAW protocol and TMC protocol user may setup corresponding protocol by IO Setup To Set Output Parameter Press Utility Output Setup to enter the following interf...

Страница 75: ...Setup Load to enter the following interface Please note that the load parameter shown on the right bottom is the default setting when the power is on or the pre set load value If the current value is...

Страница 76: ...activated When the Sync Signal is disabled the output voltage of the Sync connector is level low In the Inverse Mode the Waveform that corresponds to the Sync Signal does not inverse The Sync Signal i...

Страница 77: ...umber format Set the number format Language Set the display language Power On Default Last All the settings return to default when powered All the settings return to the last one when powered Set to D...

Страница 78: ...eactivate the sound when an error occurs from the front panel or the remote interface Activate or deactivate any sound made by the button or knob on the front panel The current setting is stored in th...

Страница 79: ...tor the format can have various forms 1 as point press Separator On the example is as followed Function Menu Settings Explanation Point Using dot to represent point Using comma to represent point Sepa...

Страница 80: ...wed Figure 2 65 Set Format 4 as point press Separator Off the example is as followed Figure 2 66 Set Format 5 as point press Separator Space the example is as followed Figure 2 67 Set Format 6 as poin...

Страница 81: ...lity System Set to Default to set the system to the default setting The default settings of the system are as followed Table 2 34 Factory Default Setting Output Default Function Sine Wave Frequency 1k...

Страница 82: ...100Hz 1 9kHz Sweep Time 1S Trig Out Off Mode Linear Direction Burst Default Period 10ms Phase 0 Count 1Cycle Trig Off Trigger Default Source Internal www GlobalTestSupply com Find Quality Products On...

Страница 83: ...gure 2 69 Test Cal function Menu Figure 2 70 Table 2 35 Menu Explanations of Test Setting Function Menu Settings Explain SelfTest Perform system self test SelfCal Do self calibration www GlobalTestSup...

Страница 84: ...en test interface The clew words Press 7 Key to continue Press 8 Key to exit is displayed You could press the 7 for test Figure 2 72 Screen Test Interface Function Menu Settings Explain Scr Test Run s...

Страница 85: ...rify that all the backlit buttons illuminate correctly Note When you operate the screen would display the white color LCD The tested button or knobs corresponding area would display green color LCD At...

Страница 86: ...represent the front panel knobs The clew words Press 7 Key to continue Press 8 Key to exit is displayed You could press the 7 button continuously for testing when buttons are lighted the corresponding...

Страница 87: ...hown in Figure 2 5 SelfCal do self calibration environment you use the generator changes system may calibrate data based on change of current environment Figure 2 75 SelfCal Interface www GlobalTestSu...

Страница 88: ...The times of boot strap Software version Software version of current equipment Hardware version 02 00 00 21 25 represents ordinally PCB version BOM version Daughter card version FPGA version CPLD vers...

Страница 89: ...eries of the product Bit 7 10 represent production date Bit 11 14 represent serial number of product For example SFG00004130008 represents the eighth generator made by GLOBAL SPECIALTIES in the fourth...

Страница 90: ...tility Menu 3 Press 1 2 option button to enter the second page of Utility Menu 4 Press the Update option button 5 Press Brower option button to select Directory then select the USB Device A through di...

Страница 91: ...of the front panel buttons with the help list Press Help to enter the following interface Figure 2 77 Help Menu Figure 2 78 Table 2 37 Help Menu Explanations Function Menu Settings Explanation Cursor...

Страница 92: ...Example 2 Generate a Square Wave Example 3 Generate a Ramp Wave Example 4 Generate a Pulse Wave Example 5 Generate a Noise Wave Example 6 Generate an Arbitrary Wave Example 7 Generate a Sweep Wave Exa...

Страница 93: ...the amplitude 1 Press Ampl to choose Ampl which will display in white color 2 Input 5 from the keyboard and choose the unit Vpp The amplitude is set to be 5Vpp Set the Offset 1 Press Offset to choose...

Страница 94: ...Figure 3 1 Sine Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 95: ...lor 2 Input 2 from the keyboard and choose the unit Vpp The amplitude is set to be 2Vpp Set the offset 1 Press Offset to choose Offset which will display in white color 2 Input 0 from the keyboard and...

Страница 96: ...Figure 3 2 Square Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 97: ...oose Ampl which will display in white color 2 Input 100 from the keyboard and choose the unit mVpp The amplitude is set to be 100mVpp Set the offset 1 Press Offset to choose Offset which will display...

Страница 98: ...Input 30 from the keyboard and choose the unit 30 The symmetry is set to be 30 When the period amplitude offset phase and symmetry are set the wave generated is shown in Figure 3 3 Figure 3 3 Ramp Wav...

Страница 99: ...e the HLevel which will display in white color 2 Input 5 from the keyboard and choose the unit V The high level is set to be 5V Set the low level 1 Press Offset and choose the LLevel which will displa...

Страница 100: ...Input 20 from the keyboard and choose the unit ns The delay is set to be 20ns When the frequency high level low level pulse width and delay are set the wave generated is shown in Figure 3 4 Figure 3 4...

Страница 101: ...rd and choose the unit mV The amplitude is set to be 10 mV Set the mean 1 Press Mean 2 Input 5 from the keyboard and choose the unit mV The offset is set to be 5 mV When the amplitude and offset are s...

Страница 102: ...which will display in white color 2 Input 5 from the keyboard and choose the unit MHz The frequency is set to be 5MHz Set the amplitude 1 Press Ampl to choose Ampl which will display in white color 2...

Страница 103: ...the wave generated is shown in Figure 3 6 Figure 3 6 Sinc Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 104: ...ard and choose the unit kHz to set the frequency 5kHz 2 Press Ampl to choose Ampl which will display in white color Input 5 from the keyboard and choose the unit Vpp to set the amplitude 5Vpp 3 Press...

Страница 105: ...it kHz to set stop freq 10kHz Set the Sweep Mode Press 1 2 Linear and choose Linear When all parameters above are set the linear sweep wave generated is shown in Figure 3 7 Figure 3 7 Sweep Waveform w...

Страница 106: ...frequency 10kHz 2 Press Ampl to choose Ampl which will display in white color Input 1 from the keyboard and choose the unit Vpp to set the amplitude 1Vpp 3 Press Offset to choose Offset which will di...

Страница 107: ...set the burst cycle 5 Set the delay Press Delay and input 100 from the keyboard and choose the unit s to set the delay 100 s When all parameters above are set the wave generated is shown in Figure 3 8...

Страница 108: ...hoose the unit Vpp to set the amplitude 1Vpp 4 Press Offset and choose Offset which will display in white color Input 0 from the keyboard and choose the unit Vdc to set the offset 0Vdc Set the modulat...

Страница 109: ...Figure 3 9 AM Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 110: ...nd choose the unit Vpp to set the amplitude 1Vpp 4 Press Offset and choose Offset which will display in white color Input 0 from the keyboard and choose the unit Vdc to set the offset 0Vdc Set the mod...

Страница 111: ...10 Figure 3 10 FM Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 112: ...ose the unit Vpp to set the amplitude 5Vpp 4 Press Offset and choose Offset which will display in white color Input 0 from the keyboard and choose the unit Vdc to set the offset 0Vdc Set the modulatio...

Страница 113: ...Figure 3 11 PM Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 114: ...yboard and choose the unit Vpp to set the amplitude 5Vpp 4 Press Offset and choose Offset which will display in white color Input 0 from the keyboard and choose the unit Vdc to set the offset 0Vdc Set...

Страница 115: ...Figure 3 12 FSK Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 116: ...y in white color Input 5 from the keyboard and choose the unit Vpp to set the amplitude 5Vpp 4 Press Offset and choose Offset which will display in white color Input 0 from the keyboard and choose the...

Страница 117: ...Figure 3 13 ASK Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 118: ...choose Offset which will display in white color Input 0 from the keyboard and choose the unit Vdc to set the offset 0Vdc 5 Press PulWidth and choose PulWidth which will display in white color Input 40...

Страница 119: ...14 Figure 3 14 PWM Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 120: ...n white color Input 4 from the keyboard and choose the unit Vpp to set the amplitude 4Vpp 4 Press Offset and choose Offset which will display in white color Input 0 from the keyboard and choose the un...

Страница 121: ...Figure 3 15 DSB AM Waveform www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Страница 122: ...defect or the instrument does not operate properly or fails performance tests notify the GLOBAL SPECIALTIES sales representative If the shipping container is damaged or the cushioning materials show...

Страница 123: ...rt the waveform generator 4 If the generator still doesn t work after the checking please contact GLOBAL SPECIALTIES 2 If there is no signal wave output after setting the parameters please do as follo...

Страница 124: ...complete warranty statement To arrange for service or obtain a copy of the complete warranty statement please contact your nearest GLOBAL SPECIALTIES sales and service office Except as provided in thi...

Страница 125: ...essories SFG 20X Series Function Arbitrary Waveform Generator Accessories Standard Accessories Quick Start Guide printed Power Cord USB Cable www GlobalTestSupply com Find Quality Products Online at s...

Страница 126: ...a mid detergent and water Make sure the instrument is completely dry before reconnecting it to a power source To clean the exterior surface perform the following steps 1 Remove loose dust on the outsi...

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