operating manual - Pennybuying Offical Blog
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1. default trigger mode is the manual trigger mode internal CH2 trigger mode a continuous pulse sting can be outputted which affected by CH2 external trigger mode trigger pulse affected by input signal from an external All three modes set the desired number of pulses 1 to 1048575 by knobbing and pressing buttons eres init and then pes Run pulse strings set can be output as shown in the figure of 5 pulse strings IT I Ga 5 2 8 FSK function of CH2 In the main interface press cuz JC esk enter FSK interface hop frequency carrier frequency and FSK rate can be set Pressing can set hop frequency the max hop frequency up to 90KHz A curse appears as setting the curse can be moved by pressing Hand rotate the knob to adjust as follows HopF 00 B00 00Hz Pressing can set carrier frequency the carrier frequency is the frequency of CH2 and pressing can set FSK rate which is the frequency of CH1 its setting method has been introduced above 5 2 9 Synchronization function of CH2 Synchronization of CH2 refers to some values of the CH2 is controlled by CH1 and consistent with CH1 it can achieve frequency tracking amplitude tracking and duty tracking if frequency tracking is selected and the phase difference is the phase setting of CH2 5 2 10 TTL IO settings TTL IO settings are configured for the machine TTL IO port specifically TTL IO can be configured as an input and also as an output Configured as2. Refers to an auxiliary function of the machine such as setting the sound of on or off frequency measurement cycle measurement communication settings etc 13 H o N Settings of CH2 14 Two options of save and load appear by pressing Mem save represents the current specific parameter settings of CH1 and CH2 to be saved in Flash memory to the machine there are 100 specific storage locations from MOO to M99 Load indicates the content of the Flash memory to be loaded the machine can load parameter of MOO automatically at boot time M01 storage location is mainly for some of the parameters set the sweep function 4 2 MHS2300A series Display Introduction 5 Operation 5 1 Power On 5 1 1 Plug 5V adapter switch on 5 1 2 The LCD displays the company name and version number of the instrument 10 5 1 3 Enter into the main interface 5 2 Operating Introduction 5 2 1 Set waveforms of CH1 In the main interface after pressing the button of cu and Wave oreselSelt J the waveforms of sine square and triangle can be switched if you press Arti an arbitrary wave will be outputted The machine has 15 waveform storage locations of 1024 10bits Rotating the knob or oressing Selt J which can load 15 arbitrary waves circularly pressing which can set the next frequency you can quickly switch waveform settings of CH2 as pressing 2 5 2 2 Set frequency of CH1 In th
3. enter the sweep operation interface pressing Emod tn machine can achieve frequency sweep amplitude sweep and duty sweep switching the time setting range is from1 to 99 seconds the settings of sweep start and end values are saved in the storage location M01 so if you need to use the sweep function it is necessary to set the stored value of MO1 We define the starting value is the value of CH1 in the storage location M01 the end value is the value of CH2 in the storage location MO1 so if we want to achieve sweep from 10kHz to 100kHz CH1 need to be set to 10kHz CH2 need to be set to 100kHz and the current value need to be stored in the M01 then enter the operation interface and set the sweep time pressing which can start sweeping 5 2 6 Synchronization function of CH1 In the main interface press c CII enter the synchronization settings it should be noted that the synchronization function of CH1 is available only when multi machine connections require to maintain a certain value of frequency and phase synchronization set synchronization at the same time TTL O need to be set as input and which can connect another terminal of TTL O set to output by cable 5 2 7 Pulse burst function of CH1 In the main interface press em C9 Cs Bus enter the trigger setting there are three trigger modes manual trigger internal CH2 trigger and 12 external trigger Press ig the three trigger modes can be switched The
4. is damaged please contact us DDS signal generator 1pc Accessories DC 5V adapter 1pc USB cable 1pc Signal output cable 2pc User manual 1pc CD 1pc 2 3 Check the machine If the machine was damaged did not work properly or failed to pass performance tests please contact your dealer or our company 3 Summary 3 1 Brief introduction Large scale CMOS integrated circuits high speed 32 bit ARM microprocessor and surface mount technology were adopted which improved the instrument s immunity and longevity greatly 2 4 inch TFT LCD screen with 320 240 resolutions was able to display all the parameters of the two channels and prompt the current key functions avoid pressing buttons repeatedly The instrument has applications in electronic engineering labs production facilities service shops and schools 3 2 The Instrument Model MHS2300A 05M Sine frequency up to 5MHz amplitude up to 20Vp p MHS2300A 10M Sine frequency up to 10MHz amplitude up to 20Vp p MHS2300A 20M Sine frequency up to 20MHz amplitude up to 20Vp p as frequency 15MHz amplitude up to 15Vp p as frequency gt 15MHz 3 3 Features 3 3 1 Adopting direct digital synthesis DDS technology FPGA design and ultra low power consumption 3 3 2 With portable aluminum alloyed shell sole DC 5V powered adapter easy to carry 3 3 3 With a 2 4 inch TFT color LCD variable function soft keys and a rotary encoder greatly enhances the usability of the inst
5. measure the signal frequency connected to Ext IN or TTL IN specifications are determined by the input setting of section 9 signals There are two options for measuring the frequency HF and LF respectively high frequency and low frequency if selected in the HF the measurement resolution is 1Hz the highest measurement is up to 60MHZz if selected in the LF the measurement resolution is 0 01Hz the highest measurement reaches 1kHz 5 2 14 Function of period parameter measurement M T eres Fon C9 Jo there are four measurement items can be selected T represents the conventional period measurement TH indicates a positive pulse width measurement TL indicates a negative pulse width measurement these three units are ns Duty is duty cycle measurements actually that is the ratio of T and TH 5 2 15 Counting function Press Fung 9 Jw you can record the number of external pulse and run operations of stop and clearing these operations are manual this counter counts the maximum up to 4294967295 5 2 16 Communication settings 14 The machine with a USB interface can be communicated with a PC computer communication hardware is based on USB to serial port Press Fun CE you can see the settings of baud address and verifying baud is the baud rate there are four ranges 9600 19200 57600and 115200 can be set addresses can be set in the range of 01 to 99 This machine can be used for multi connection control V
6. OPERATING MANUAL MHS2300 Series Dual channel DDS Signal Generator December 2013 Zhengzhou Ming He Electronic Technology Co Ltd Contents CONAC T cT UN 1 2 Inspecting Package COntens ccccceceseeseeeeeeeeeeeeeeeeeeeeaeeeeeeeeeeeeeeesnaaeees 1 3 OLIN EY SERE TT LE LS 2 class e ioc cares acier opp s E eate Un iba ds 2 3 2 The Instrument model s s ot a duse E 2 SNC Uc ORAT 2 Sub lechnical Dala iia iii 3 4 lhstumentintro du clones popa oros 7 4 T Panel IntodU cio uini oo tpe o pL otn tU ER eda 7 4 2 Fulciob InIrOdUcliOIa as e nes LA LM Ente 7 4 3 Display Introductionis iniiaiee AAA 8 spei M t 10 5A POWOL OD Lot test Caste Dn eain fortu neto et assis cubus 10 5 2 Operating Instruction ER ARE BE 6 CaUtON na O ER REXPB 5 TINTA AAA AA 16 1 Contact Mr LIAO YAOFENG Cell 008613570580543 Tel 862034553996 1 F NO 2 2 SANZHUANG RD HE CUN DASHI TOWN PANYU DISTRICT GUANGZHOU CITY CHINA ZIP 511430 Tel 862034553996 Cell 008613570580543 2 Inspecting Package Contents When you get a new DDS signal generator of MHS2300 please inspect the instrument as follows 2 1 Check if there is damage due to transportation If the package is damaged please retain them until the instrument and accessories are tested 2 2 Check package contents Contents of the case are as bellows if the content does not match with the packing list or the instrument
7. Open Power supply DC 5V adapter Dimensions 146x96x56mm W H D Weight 416g 3 1 MHS2300A series technical data 4 Instrument Introduction 4 1 Panel Introduction 9 10 Item Introduction Item Introduction 1 Color LCD 6 CHI Output terminal 2 Operating buttons 7 CH2 Output terminal 3 Kine 8 DV5V Power supply interface USB Communication 4 TTL IO Input Output 9 interac 5 Ext In Input terminal 10 Power switch 4 1 MHS2300A series panel Introduction 4 2 Function Introduction F 00 010 000 00 Hz AMPL 10 00V 000 DUTY 50 0 P 180 3 F 00 010 000 00 Hz AMPL 10 00V 000 DUTY 50 0 P 180 Item Function Introduction 1 Parameters of CH1 2 Operating function prompts 3 Parameters of CH2 4 Key function prompts 4 2 MHS2300A series Function Introduction 4 3 Display Introduction F 00 010 000 00 Hz AMPL 10 00V 000 DUTY 50 0 P 180 2 fd OK s OUT ON OFF F 00 010 000 00 Hz AMPL 10 00V 000 DUTY 50 0 P 180 Item Display Introduction CH1 CH2 The current parameters of CH1 CH2 The current waveform PAu sine UT square l V lriangle Mila rbitrary Off On 000 The current offset is set to 0 the setting range from 100 to 100 refers to the ratio of offset voltage to amplitude 100 indicates the waveform in the positive if the setting waveform is a square wave with an amplitude of 5V whic
8. Vp p 0 5 per 5 hours t 1 10mV frequency 1KHz 20Vp p 100 100 the ratio of offset voltage to signal amplitude Offset resolution 196 Square TTL CMOS Saw tooth Arbitrary Measurement Phase range Phase resolution Harmonic distortion Distortion factor Rise or fall time Overshoot Duty adjustment range Rise or fall time Low level High level Duty gt 50 Duty lt 50 Quantity Memory depth set Sweep mode Sweep time Sweep range Frequency measurement range Min input voltage Max input voltage 40dBc 1MHz 35dBc 1MHz 20MHz lt 0 8 20Hz 20KHz 0 1 99 9 Rising saw tooth Falling saw tooth 15 sets 1024 10bits Frequency sweep amplitude sweep duty sweep Depending on the settings saved in M1 of CH1 and CH2 1Hz 60MHz Normal 0 01Hz 1kHz C Ultra low frequency Counting range 0 4294967295 Counting mode Manual Positive and negative pulse width measurement 10ns resolution Max up to10s Period 20ns resolution Max up to20s measurement DU 0 1 resolution 0 1 99 9 range measurement i i T Di Signal option imum input Analog signal gt 2 TTL IN input Digita Quantity Location MOO to M99 Interface mode USB to Serial Interface d 9600bps 19200bps 57600bps or 115200bps optional inferface Communication 01 99 address Verifying mode LRC verifying or not verifying Communication protocol
9. e main interface press EH Frea a cursor appears and then pressing and which can move the cursor Rotate the knob to adjust as shown below F 00 01 000 00 Hz In the mode of frequency setting press Cuz to switch to the ultra low frequency mode In the mode of ultra low frequency the frequency resolution is 10uHz the maximum setting frequency is 600Hz Press mhz to switch to the normal mode in this mode the minimum frequency resolution is 10mHz Amplitude setting is similar to that of frequency 5 2 3 Set amplitude of CH1 In the main interface press CH Ampl a cursor appears and then pressing and which can move the cursor Rotate the knob to adjust as shown below AMPL 1D 00V 10 00V refers to peak to peak value press to fine adjustment the 11 minimum step value is 0 01V press to the quick adjustment the minimum step value is 0 04V 5 2 4 Set offset duty and phase of CH1 In the main interface pres 2 and there is no offset duty and phase settings then C appears corresponding to the button of F5 which means that there are other settings below after pressing 4 and enter the next page then F1 becomes E that is paging up as F5 turns ino E which also means that there are settings below The offset duty and phase settings are in the middle which are similar to that of frequency 5 2 5 Sweep function of CH1 In the main interface after pressing ca Cs Je sue and
10. erifying setting is setting LRC verifying mode the default is not to verify w hen you need high reliability and can run this function 5 2 17 Calibration function All products have passed calibration before go out pressing Fung J c can enter it which can calibrate the machine to very high accuracy but also calibrate the amplitude of CH1 and CH2 specifications are not described you can consult the factory if calibration is required 5 2 18 Language setting The machine supports both Chinese and English interface users can switch as needed the specific method is oressing Fun C JC C rs e save 5 2 19 Save load function There are 100 storage locations inside the machine for saving user s settings in the main interface after pressing vem you can see Memory 00 displayed and rotate the knob which storage location for storage can be set and then press Lead seve complete your desired operating 6 Cautions 6 1 Make sure the input power adapter correctly the machine uses DC5V power adapter 6 2 The LCD of the instrument is fragile perishable please do not clash violently and close to chemicals to avoid corrosion As the LCD surface is dusty and dirty please wipe with a soft cloth carefully 6 3 Operating temperature is from 10 to 50 degrees Celsius and storage temperature is from 20 to 70 degrees Celsius make sure the instrument kept dry 6 4 Do not attempt to disassemble the instrument de
11. h can be output as a digital signal of 5VTTL so different amplitudes can generate different CMOS level digital signal wave P 180 The current duty is set to 180 the phase setting of CH1 refers to the phase difference between two CHis of the different machines as multiple machines connected single machine working does not make sense the phase setting of CH2 indicates the phase difference between CH1 and CH2 of the same machine F 00 010 000 00 Hz The current frequency is set to 10kHz AMPL 10 00V The current amplitude is set to 10kHz peak to peak value DUTY 50 0 The current duty is set to 50 0 it should be noted that this setting is only valid for triangle and square wave except sine wave the duty of square wave is set in the range from 0 1 to 99 9 for the triangle the setting is in three cases Duty 50 0 is the standard triangle wave Duty gt 50 0 is the rising saw tooth Duty lt 50 0 is the falling saw tooth OK sn OUT ON OFF Generally speaking the content displayed in the middle indicates the key operating tips or some special setting values OK V The three keys can control channels of CH1 and CH2 specifically controls CH1 controls CH2 OK controls two channels simultaneously 10 The model and current firmware version number of the machine can be displayed as pressing the key of F1 11 Settings of CH1 12 E B E
12. inputs can have two purposes one is mentioned above for multiple synchronous machine cascade and another use is as a digital signal input terminal to measure frequency period positive width negative width duty and other parameters of the external pulse TTL IO configured as an output is only used to synchronize multiple machines connected to the source Specific 13 operation is pressin FunsCrmt you can enter the relevant settings 5 2 11 Input Settings Input setting is used to set the input source of external measurement functions the input source has two options TTL IN TTL IO need to be set as input and Ext IN the essential difference between the two input sources is that TTL IN is for digital signal the signal into the machine without DC blocking capacitors so very low frequency signal even less than 1Hz can be measured but Ext IN is the signal input with conventional DC blocking capacitors which is suitable for most measurement applications Specific settings are also very simple pres Funef sr you can enter the relevant settings 5 2 12 Sound Settings The machine comes with a buzzer when pressing buttons and rotating knob you can produce sound if you do not want to have voice prompts you can turn off the sound function after pressing Fune 5n8 you can enter the relevant settings 5 2 13 Function of frequency measurements Press Fung JF enter the external signal frequency measurement you can
13. roduct and the component parts thereof will be free from defects in workmanship and materials for a period of one year from the data of purchase We will repair or replace at its option defective product or component parts Returned product must be accompanied by proof of the purchase date Exclusions This warranty does not apply in the event of misuse or abuse of product or as a result of unauthorized alternations or reapers It is void if the serial number is alternated defaced or removed 16
14. rument 3 3 4 Perfectly symmetrical two channels can be synchronized to work and the phase adjustable 3 3 5 Two or multi machines can be achieved multi machines synchronous by TTL IO port 3 9 6 Various basic function waveforms of sine triangle square saw tooth and pulse duty adjustable 3 3 7 The minimum output signal frequency to 10WHZ 3 3 8 With 100 sets M00 M99 parameter storage locations data of MOO can be loaded as power on 3 3 9 With 15 sets arbitrary waveform storage locations for users self defining memory depth of each set is 1024 10 bits 3 3 10 Amplitude up to 20Vp p as frequency 5 15MHz amplitude up to 15Vp p as frequency gt 15MHz 3 3 11 Minimum frequency resolution reaches 104Hz minimum amplitude resolution to 10mV 3 3 12 With DC offset function 100 100 2 3 9 13 With FSK function hop frequency carrier frequency and FSK rate can be set freely 3 3 14 Three trigger modes manual trigger internal CH2 trigger external trigger an arbitrary burst of 1 1048575 can be outputted 3 3 15 If the setting is 10096 any CMOS digital signal of 0 10V can be outputted 3 3 16 Duty adjustment of pulse wave is accurate to 0 1 3 3 17 The burst function can control the output pulses from 1 to 1048575 3 9 18 Frequency sweep amplitude sweep and duty sweep with an arbitrary start and end point 3 3 19 With functions of frequency measurement period measurement positive and negative pul
15. se width measurement duty cycle measurement and counting 3 3 20 All parameters can be calibrated by internal program 3 3 21 Powerful communication functions and the completely open communication protocol which makes it very simple to the secondary development 3 3 22 After in connection with the PC the PC can be used to control the instrument and arbitrary waveforms edited on the PC can be download to the instrument to output 3 4 Technical data Technical data MHS2300A 05M 10M 20M Normal MHS2300A 05M 0Hz 5MHz MHS2300A 10M OHz 10MHz MHS2300A 20M 0Hz 20MHz Main output Frequency range Sine Ultra low frequency 0 600Hz Square 0Hz 5MHz Triangle OHz 5MHz Saw tooth OHz 5MHz Output modulation Waveform Waveform length Sampling rate Wave accuracy Frequency resolution Frequency error Frequency stability Amplitude range peak to peak Output impedance Amplitude resolution Amplitude stability Amplitude error Offset range Arbitrary OHz 5MHz OHz 5MHz Frequency sweep amplitude sweep duty cycle sweep FSK burst Sine Square triangle pulse ramp CMOS Arbitrary 1024 points 200MSa s 10bits 10mHz Normal 104Hz Ultra low frequency gt 5x10 1x10 MHS2300A 05M 10mVp p 20Vp p MHS2300A 10M 10mVp p 20Vp p MHS2300A 20M 10mVp p 20Vp p frequency 15MHz 10mVp p 15Vp p frequency gt 15MHz 500 10 10m
16. stroying the package will void the warranty this instrument has no user serviceable parts inside if it need to be repaired you can repair it by specifying outlets or return to the factory for repair 6 5 Do not place lighted candles cups filled with water corrosive chemicals and other unsafe items on the instrument to avoid damage to the instrument 15 6 6 The display screen is an easily contaminated fragile device do not touch and crash and avoid children playing the instrument 6 7 Do not move the instrument violently as it is working to avoid irreparable damage to the internal circuitry 6 8 When you start the sound options the normal ringing sound of the keys will be accompanied if this does not occur in other words the key may be damaged or the internal circuit is damaged please contact the supplier In addition to the above problems the instrument still does not work properly please contact the supplier 7 Warranty and service Maintenance and Warranty This instrument is a high precision electronic device in order to give full play to its function please read the following about maintenance safety and effective use of guidance before using Thank you for purchasing our products To maximize the use of the new product features we recommend that you take the following steps 1 Read safe and efficient use instruction 2 Read the warranty terms and conditions We warrants to the original purchaser that its p
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