User`s Manual - Spectrum Analyzer
Contents
1. UBI eb dtt 41 Tag baa aga Ten Tan bana Naga an 42 Symbols lt and ICONS eee EE RELATO ss a fot PG Ag a a a a ee a ede ama ale 42 NA ga a teint acted 43 Safety Instructions 1 Check the casing and accessories before use Do not use the instrument with casing damaged Check to see if there are any cracks or missing plastic parts Pay special attention to the insulating layer of the instrument pen and connector When using the instrument pen or oscilloscope probe do not touch the metal part with your fingers 2 The called waterproof seal design of the instrument means prevention against water splashing or short time exposure to water only Once this happens you must wait until the instrument dries for normal use 3 Do not use the instrument in high temperature and flammable explosive environments or under wet conditions 4 Do not apply voltage beyond the ultimate withstanding capacity of the instrument DOS input 30V p p probe X1 300V p p probe X10 DDS out Prohibit input voltage 5 Before inserting and plugging the oscilloscope probe and powering on and off make sure to separate the probe from the test point 6 When using the oscilloscope and the signal source sim2. Press F1 to delete and press F4 to cancel When you press F1 it will prompt data being cleared and data cleared successfully Note in Clear state all of the stored data will be deleted Horizontal time base adjustment In the regular measurement state press the F2 key to select time base adjustment and press the keys to change scanning time base within the range of 5ns div 2 5s div When measuring a signal with unknown frequency you should try to collect waveforms from the fastest time base and then gradually select slower time bases until the signal can be displayed correctly Otherwise due to aliasing distortion effect the waveforms may not correctly reflect the actual situation of the signal There are many methods to avoid aliasing distortion effect adjust time base or press the F1 key for automatic measurements 24 Vertical amplitude control In the regular measurement state press the key to select amplitude adjustment and press the keys to adjust amplitude if the system is set to 1 1 amplitude changes within 10mV div 5V div if the system is set to 10 1 amplitude changes within 100mV div 50V div Automatic waveform trigger During automatic waveform measurements the auto trigger mode is used Even if no trigger conditions are detected the oscilloscope can still collect waveforms In the absence of trigger conditions the oscilloscope will automatically trigger and begin collecting
3. on the top left corner If Position XX has stored data when pressing the F1 key to save a window will pop up on the interface to prompt Are you sure to overwrite the current data Then press F1 to overwrite prompt data is being saved and press F4 to cancel Adjust graphics 1 Delete Press the F2 key to enter graphical adjustment the display interface will prompt Position XX waveform or Position XX has not stored data Position XX is not used or Position XX has stored data on the top left corner the graphics saved or adjusted may be deleted and cleared In the case of Position XX waveform the interface will display the stored waveforms and measured data Press the F3 key to enter delete options the display interface will prompt Position XX waveform or Position XX has not stored data on the top left corner 23 Clear The display interface will prompt are you sure to delete the current data in the middle Press F1 to delete and press F4 to cancel When you press F1 it will prompt data being deleted and data deleted successfully Press the F4 key to enter clear options the display interface will prompt Position XX waveform or Position XX has not stored data Position XX is not used or Position XX has stored data on the top left corner the graphics saved or adjusted may be deleted and cleared The display interface will prompt are you sure to delete all of the data in the middle
4. data after waiting for some time due to the absence of proper trigger waveforms displayed by the oscilloscope cannot synchronize and thus scroll on the screen Once the legitimate trigger signal is detected waveforms can stabilize on the screen Waveform measurements in regular mode Access to the measured signal from the oscilloscope input port and watch the LCD display screen under normal circumstances the probe attenuator switch should be at X10 and the system should be set to 10 1 If the measured waveforms appear you may press the F1 key auto to stabilize the waveforms The digital readout part will display the measurement results If you need to change the quantity or amplitude of the displayed waveforms you may press the F2 and keys to change the time base how may waveforms are displayed press the key to change setting to amplitude and press the keys to change the amplitude of the displayed waveforms waveform size 25 During automatic measurements in order to find the position accurately as soon as possible there are not input signals or DC input and the system default is 100mV 2 55 the system is set to 10 1 Under stable display of waveforms the digital readout of Vp Vp and Vp p intuitively reflects the measurement results of the measured signals The absolute values of Vp and Vp indicate the symmetry of the measured waveforms when you select the DC coupling mode the difference betwee
5. is the frequency division result of 156250Hz n the frequency below 10kHz is not possibly an ideal integer frequency The output signal amplitude is 1V Signal settings In the oscilloscope regular mode press the OK key for 3 seconds to enter the signal source setting interface Press the F1 key to select to open and close the signal source Press the F2 key to select the type of output signal Each time you press the F2 key the box under waveforms will display the type of waveforms sine wave triangular wave forward sawtooth wave backward sawtooth wave and square wave etc Square wave T is specially used to generate special signals for example 1kHz square may be used to calibrate the oscilloscope probe 200 and 400us signals used to cooperate with the oscilloscope to detect the waveforms of HOT type inter turn faults ringing signal and 15625Hz square wave is used to substitute the line oscillation or line drive waveform signals Press the F4 key to exit or close the signal source help window When the signal source is opened a window will pop up at the top left corner of the interface to display waveform type and frequency 37 Signal source adjustment Press the F2 key to select the type of output signal and then press the keys to select to decrease the output signal frequency the key is for rough adjustment and the key is for fine adjustment press the keys to select to increase the output signal f
6. ATTEN INSTRUMENTS AT H150 Scope Meter User s Manual CONTENT SAFETY INSTRUCTIONS tim Ente EE i t et he e c tame Rc Eben 4 INSTRUMENT INTRODUTCTION 6 a a BN a di a daga a aaa 6 Parelfealtules aaa ag a da gag aaa a ag wa gena ga ad due cele wa a an caddie ed eye et ai a 7 BASIC OPERATION eR ene e e et e ede m et 11 Start pone E EE S EEE E E E E E E E AE E E A 11 Auto SHUTAOW g Pe A E PE A E AE aana ana A a egak aana 11 Battery a dag aa ele ajara aa ah a eee adi ea aaa da a eee 12 Use the AC adapter for power 13 CALENDAR AND CLOCK 2222 NTT NR tret 15 Enter calendar and clock mode ou ccccceecccccccccceeeceeccecceseeeueueeeeeseceuueeeeeeeceeeuueuseeeeeseueuuauseeeeeeeueaueeseeeeeseueeuaeeeeeess 15 Calendar and clock e T uo eL 15 OSCILLOSCOPE OPERATION 2 2 1 000022050000070100 17 E erbe ee c be et oe 18 Regular triode ean eA aA eee 20 Key operation in regular 2 20 Horizontal time base adjustment aga aa ag aaa DERE DER ERE BEC 24 Vertical amplitude co
7. X1 the bandwidth of the probe itself is less than 6MHz 29 Only after being calibrated and set the probe attenuator to X10 the probe can satisfy the bandwidth of 50MHz in response to sine wave signals 39 TECHNICAL SPECIFICATIONS General Specifications 320 x 240 dot matrix graphic Display View area 70mm x 58mm color LCD Backlight White Auto shutdown 10 minutes Low power symbol D Charge time More than 4 hours Continuous service About 120 minutes Storage capacity 40 groups of waveform records time Application Storage 0 C 40 C 759 6RH 10 C 60 C 9096 RH environment conditions About 490g excluding other Dimensions 200mm x 135 mm x 52mm Weight accessories Built in 2300mAh lithium Power supply 110V 250V 5V 1 5A protection Battery battery pack 40 adaptor switching power supply Analog bandwidth Oscilloscope Specifications DC 50MHz probe X10 DC 5MHz probe X1 bandwidth sine wave response Maximum real time sampling rate 200Msps Vertical resolution 8 bits Coupling mode DC AC Graduation Vertical 4div horizontal 12div Vertical sensitivity range 10mV div 50V div 1 2 5 10mV div 50V div 1 2 5 binary switch Time base range 5ns div 2 5s div 1 2 5 5 binary switch Vertical amplitude accuracy 5 0 1div Time base accuracy 0 01 0 1div Automatic zero correction Yes Mea
8. alling edge 4 Auto shutdown selection cancel V for continuous work state Press the 1 keys to move the options to be set and press the OK key to confirm After setting press F1 to save and exit and press F4 to exit directly 18 Seiting results 1 Auto shutdown selection when you select the auto shutdown state the instrument will automatically shut down if without any key pressed within 10 minutes When you connect external power supply for charging the instrument cannot automatically shut down Cancel to enter the manual shutdown state and long press the key for more than 5 seconds to shut down Coupling mode selection when DC coupling is selected the AC and DC component in signals can pass when AC coupling is selected the DC component in signals is blocked and the dynamic AC component can pass When measuring DC or DC AC DC signals you should select the DC state When DC component in the measured signals is larger the displayed waveforms will deviate from the display area Probe attenuator setting its state should be consistent with the oscilloscope probe attenuator position If the probe attenuator is at X1 the system setting should select 1 1 if the probe attenuator is at X10 the system setting should select 10 1 only when a probe optional of 100 1 is used the system setting uses 100 1 The probe attenuator is generally at the X10 position state recommended to set in normal use when probe at
9. cy readout is displayed as which prompts the users to make a correct analysis Maintenance of signal waveform With the ongoing data collection the signal waveforms are constantly refreshed The main role of waveform maintenance is to maintain the current data or waveforms in order to observe carefully There are two methods to maintain waveforms press the HOLD key or use the single trigger scan mode Waveform maintenance is different from waveform storage It only maintains the displayed contents Once you press the HOLD key again or change functions and settings or turn off the power the maintenance contents displayed before will loss For long term retention of graphics you must enter the save mode and press the save key to store graphics in the memory If the measured signals have interference non constant amplitude or non repetitive waveforms the display of waveforms will become unstable At this point press the HOLD key the screen displays one of the graphics of the high speed A D capture measured signals to analyze the signal characteristics This function is defined as pause To detect irregular signals you d better select the single measurement mode 27 Single mode Press the MODE key to enter single measurement The capture of complex waveforms or sporadic signal waveforms should use the single measurement mode For single measurements you need to set the horizontal time base and vertical amplitude control in a
10. dvance and select the rising and falling edge trigger level settings aiming at the signal characteristics Press the key to start measurement Once the measured signals meet the set criteria the screen displays a single cycle or multi cycle waveforms Press the F4 key to enter the displacement adjustment submenu and press the keys to change the horizontal position and digital display horizontal position XXXX ms us and ns Main menu of function keys in the single measurement state Key Operating function Description F1 Start Enable eligible single measurement Time base amplitude 2 Select time base amplitude and trigger adjustment respectively and trigger F3 Measure Measure the corresponding voltage difference and time difference F4 Displacement Enter the horizontal position adjustment submenu 28 HOLD Edge trigger J L trigger slope is not saved 1 Press the F1 key to start measurement display state changes from start to wait Once the input signal meets preset trigger conditions the screen will display stable waveforms Press the F1 key again to end the wait state 2 Press the F2 key to enter time base amplitude trigger setting and press the keys to change the attenuation of horizontal scanning time base and input range and set trigger level to observe the waveforms of the measured signals by the best way 3 Press the F3 key to enter the dV dt measurement state for digital display of the c
11. enter automatic measurement the oscilloscope will automatically select the appropriate scanning time base amplitude control and trigger conditions and display stable waveforms Automatic measurement is also called one click measurement reducing the complex adjustment processes and making the measured waveforms displayed at one click When automatic measurement encounters random signals or the interference of repetitive waveforms synchronization instability will occur You may select single measurement or press the F2 or F3 key to enter manual adjustment of time base amplitude Press the F2 key to enter time base adjustment selection After selecting time base adjustment press the keys to change the horizontal scanning interval and observe the waveforms of the measured signals with the optimal time base Press the key to enter amplitude adjustment selection After selecting amplitude adjustment press the keys to change the vertical amplitude range and observe the waveforms of the measured signals with the optimal amplitude Press the F4 key to enter digital readout When you enter regular measurement digital readout is open by default if the display area has an impact on waveform measurement you may press the F4 key to close the digital readout function Press the 1 help for more than 3 seconds to enter help i e the operation quick guide interface and press the F5 key to exit the interface 21 6 Press the key
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13. for less than 1 second to retain selection F1 F4 function prompts on the display interface Press the key again to close the selection F1 F4 function prompts display interface Waveform storage and readout in regular mode During measurement press the HOLD key to maintain waveforms first and then press the F5 key or directly press the F5 key to enter the storage interface to select Key Function prompt Operation results 1 Save Select storage position via the gt T keys F2 Adjust graphics Select readout position via the gt keys F3 Delete Delete graphics displayed under the selected position number F4 Clear Delete all stored graphics Note to maintain waveforms via the HOLD key press the HOLD key until the HOLD symbol appears on the screen The t lt keys are used to adjust the selected position number the 7 key is used to increase by 10 position numbers the key is used to decrease by 10 position numbers the key is used to increase by 1 position number and the key is used 22 to decrease by 1 position number When you change the position there are prompts about the current position and the availability of data on the screen deletion clear and position numbers repetitively saved all have prompt windows Follow the prompts to operate Save 1 Press the F1 key to enter waveform storage the display interface will prompt Position XX is not used or Position XX has stored data
14. he actual situation of the signal Vertical amplitude settings Press the F2 key to select amplitude and press the keys to change amplitude setting default 100mV system 10 1 For single measurements you will completely observe the measured waveforms if you select the appropriate amplitude The setting of amplitude should consider the maximum peak of single waveforms If range is set small waveforms will stretch out of the screen if range is set large the waveform display amplitude will be low the measurement error will increase and observation will be made inconvenient Trigger edge settings 1 System setting long press the MODE key for more than 3 seconds to enter system setting 30 Edge selection select rising edge or falling edge press the OK key to confirm After setting press F1 to save and exit and press F4 to exit directly 2 Measurement setting in the single measurement state press the HOLD key to select trigger edge L As soon as you exit single measurement or shut down trigger edge will be restored to the J or L state set for the system To change the rising edge or falling edge trigger will not change the trigger level preset parameters Trigger condition settings Press the F2 key to select trigger and according to the characteristics of the measured waveforms press the lt and keys to change trigger level upward or downward 1 keys for rough adjustment and keys for fine adjus
15. interface will generate a pair of horizontal cursors to measure dV and a pair of vertical cursors to measure dt The digital readout function may be used to measure the voltage difference dV or time difference dt between the two cursors on the display screen that will be displayed on the screen at any time Waveform measurements in single mode Press the MODE key to select the single mode and set time base amplitude trigger mode and trigger level according to the characteristics of the measured signals Access to the measured signals from the oscilloscope input port and press the F1 start key the function key start concaves down Watch the LCD display screen the measured waveforms are completely displayed in the effective area Press the F3 key to enter the measurement function and analyze the characteristics of the measured waveforms if the captured waveforms cannot be effectively observed you should change related settings and repeat the steps above until satisfied with the test results If the wait time during single measurements is too long it indicates that the signals have not arrived or the connection is wrong You may press the F1 key to end the wait state If the measured waveforms are not completely displayed in the effective area you may press the F4 key to enter the displacement state and press the keys to adjust the horizontal position of the measured waveforms Entering single measurements the instrument default
16. is 100mV 2 5us system setting 10 1 34 Waveform storage and readout in single mode The DSO database has a memory space for 40 DSO waveform data See Page 13 in this manual for Save Readout Delete Clear operating methods 35 Signal Source Operation Enter signal source settings Select oscilloscope DSO regular measurement mode to enter signal source setting maintain signal output of set parameters in the DSO regular and single measurement state Warning e Itis prohibited to access any voltage signal to the signal source output wire When used in conjunction with the oscilloscope keep the oscilloscope probe the earth terminal of the signal output wire at the same level to avoid floating measurements Signal generation The signal source uses the DDS digital frequency synthesis technology to obtain 156 25kHz stable fundamental frequency through FPGA programmable logic array frequency division Signal frequency output from the signal source is the frequency division result of 156 25kHz n The signal frequency regulation follows the following rules e For 10Hz 100Hz stepped frequency interval is 1Hz e For 100Hz 1000Hz stepped frequency interval is 10Hz 36 e For 1kHz 10kHz stepped frequency interval is 100Hz e For more than 10 kHz 10427 2 11161Hz 12019Hz 13021Hz 14205Hz 15625Hz 17361Hz 19531Hz 22321Hz 26042Hz 31250Hz 39063Hz 52083Hz 78125Hz and 156250Hz Because the output signal frequency
17. just freguency amplitude ursor Signal source OK Confirm switch Input output jacks NGT ud Input oscilloscope input input port of DC 50MHz waveforms measured MAX30Vp p Signal Signal Out Input C X A a Out function output output port of sine wave triangular wave sawtooth wave square wave and square wave T 1Vrms Top diagram Externally connected to power socket and wires Use 5V 1 5A special switching charging power supply It is prohibited to use the computer USB port for direct power supply Bracket diagram The bracket adopts secondary injection moulding to increase friction between soft rubber and the table so as to bond the instrument more solid The bracket and rear shell adopt bone joint structure positioning Once stressed the bracket supporting pole will not break and damage 10 Basic Operation Start and shutdown Press the key and hold for more than 1 second to turn on the power Press the key again and hold for more than 5 seconds to turn off the power Attention Be sure to keep the test probe away from the test point before shutdown Always power off in a timely manner after use Auto shutdown The instrument will automatically shut down if without any key pressed within 10 minutes after it is powered on With key press actions in normal use the shutdown time will be delayed for 10 minutes To set or close the auto shutdown function you may selec
18. n Vp and Vp reflects the DC component in the signals if the measured waveforms are not of constant amplitude what Vp and Vp record is the maximum or minimum peak that have appeared in the measured waveforms Observe the signals of a particular cycle through the CH XX V mV and M XX ms s ms us ns parameters displayed at the top of the display area In the current state each grid of the vertical axis represents XX V mV and each grid of the horizontal axis represents XX ms s ms us ns Through grid counting you will get the measurement parameters of the waveforms in this cycle By pressing the F1 auto key you cannot capture stable waveforms A the waveform input amplitude is too small B the frequency of the measured signal is lower than 20Hz C the probe attenuator setting is wrong D exceed the measurement frequency range E the measured signal has large interference F the probe is damaged or wrong connections G machine failure If machine failure is suspected see Chapter Oscilloscope Probe Calibration in this manual and output 1kHz square waves from the signal generator to the input terminal of the oscilloscope directly for checking 26 Tips The digital readout of measurement results comes from the calculation of he displayed waveforms 9 Obviously the lower the frequency of the measured signal is the greater the relative error of sampling calculation is In the slow scan 30ms 2 5s state the frequen
19. ntrol 2 panen ap ENE BENANG eases a aiid 25 Automatic waveform trigget anana naa na aa a EE Ia A aaa a E uer NU EE Eu ERE 25 Waveform measurements in regular 25 Maintenance of signal 27 SingleMode aana A E 28 Horizontal time base 29 Vertical amplitude Settings isc sc erret Rei 30 Trigger edge as as aaa sa e Kena a a RUDI OI B B IPOD 30 Trigger Condition settings eR eA Ae E DR CURE 31 Horizontal position adjustment ine ad vot gen usn ier re aaa Abu ener 31 Cursor measurement readout function sessi 32 Waveform measurements in single 34 Waveform storage and readout in single mode seeeeeeenenenen eene 35 SIGNAL SOURCE 22 222 2 2 02 402000 0400000000000000000000000 36 Enter signal source selttifigs 3 t ior ER Ee etude bea ioa Cae RE Ctr CE 36 Oscilloscope probe nennen 38 TECHNICAL PARAMETERS AND INSTRUMENT 22 22 2222 40 5 amp npe p LUE naa a bp pure dens en De pure toon ren baan aa 40 Oscill Scope speclfIGatiOn s
20. on is full For safety when using the AC adapter first insert the connector plug of the AC adapter in the dedicated jack at the top of the instrument and then access to the mains supply The plug indicator will light which nevertheless does not necessarily mean the AC adapter is in reliable contact with the instrument socket but if the plug indicator does not light it indicates that access to the mains supply fails or the AC adapter is faulty 12 If you want to fully charge the battery as soon as possible it is advisable to charge in the shutdown state If the instrument is not in use over a long period of time charge it once every 90 days for not less than 5 hours If you cannot start the instrument by pressing the key charge it promptly And if it still cannot be started after being connected to the AC adapter call our technical service center for more information Attention Avoid long time extrusion of the 0 key during carrying If you cannot start it by pressing the key to press the key repeatedly will result in over discharge and even damage of the battery Use the AC adapter for power supply The AC adapter is mainly used to charge the built in rechargeable battery but the instrument can also run through the power supply of the AC adapter The AC adapter is 5V 1 5A switching power supply characterized by anti electromagnetic interference low ripple voltage wide input voltage range and short circuit protec
21. orresponding voltage difference and time difference 4 Press the F4 key to enter the displacement adjustment submenu and press the keys to display the waveforms that are stored in the cache and have been sampled 5 Press the HOLD key to select trigger edge I L As soon as you exit single measurement or shut down trigger edge will be restored to the J or L state set for the system 6 Press the 1 key for more than seconds to enter the help interface press the 1 keys to turn pages for display and press the F5 key to exit the help interface Horizontal time base settings Press the F2 key to select time base and press the keys to change time base setting the default is 2 5us For single measurements it is very important to select the appropriate time base To broaden the measured waveforms time base 29 should be faster and changed from 2 5us to ns to capture more waveform cycles time base should be slower and changed from 2 5us to ms s if time base is set too fast you will not be able to see complete waveforms if time base is set too slow waveforms will be displayed too densely so as to affect the waveform analysis Attention When measuring a signal with unknown frequency you should try to collect waveforms from the fastest time base and then gradually select slower time bases until the signal can be displayed correctly Otherwise due to aliasing distortion effect the waveforms may not correctly reflect t
22. placement F4 Return Return to the previous menu and restart single measurements Cursor measurement readout function In the single measurement state press the F3 measurement key to enter the cursor measurement submenu 32 Key Function prompt Operation results 1 Upper cursor The upper cursor for amplitude selection moves F2 Lower cursor The lower cursor for amplitude selection moves F3 Left cursor The left cursor for time selection moves F4 Right cursor The right cursor for time selection moves F5 Return Return to the single measurement menu Press the F1 key to move the upper cursor for amplitude selection and press the N keys to change the position of the upper cursor Press the F2 key to move the lower cursor for amplitude selection and press the 1 gt keys to change the position of the lower cursor Press the key to move the left cursor for time selection and press the N keys to change the position of the left cursor Press the F4 key to move the right cursor for time selection and press the 1 keys to change the position of the right cursor Press the F5 key to return and reenter the single measurement or displacement main menu 33 Press the 7 lt keys to change the position of the cursor Each time you press the keys the cursor will move for 1 25 grid each time you press the 1 keys the cursor will move for 1 5 grid During cursor measurements the display
23. requency the 7 key is for rough adjustment and the gt gt key is for fine adjustment Signal source close In the oscilloscope regular mode press the OK key for 3 seconds to enter the signal source setting interface Press the F1 key to select to close the signal source and press the F4 key to exit Oscilloscope probe calibration When use the oscilloscope probe for the first time or renew it you must recalibrate it in the following way Select the oscilloscope DSO regular measurement mode Attention Insert the oscilloscope probe in the oscilloscope input port and set the probe attenuator at X10 position See the signal source using methods Select signal type as square wave T and press the F2 key to adjust the output signal frequency to 1 00kHz Press the F4 key to confirm and exit the signal source window Set the oscilloscope probe attenuator 38 at X10 position keep the probe in direct contact with the signal source output port and press the F1 key auto to get stable square wave display Observe the square wave display that may have the following three types Normal compensation waveform Overcompensation waveform Under compensation waveform Use a non inductive screwdriver to adjust compensation capacitance at the opening position at the front end of the probe test bar of the oscilloscope probe to display normal square waves and finish calibration Tips When the oscilloscope probe attenuator is at
24. rk modes to choose from automatically select continuous work mode during charging 6 e 320X240 3 5 inch color LCD display with LED backlight e Built in 2300mAh lithium rechargeable battery pack and equipped with AC power supply adapter for external power Source Panel features Key name Main Function F1 F5 The function keys are used to adjust the oscilloscope settings including system settings home directory and settings in measurement mode 0 Power key MODE System setting regular single selection key HOLD Hold save key trigger edge selection in single mode Tips after the regular mode prompt menu is entered it will automatically hide after 5 seconds of automatic prompt Press the 0 key to lock long time display and press it again to close Mode F1 F2 F3 F4 F5 meme Save adjust Regular mode Auto Time base Amplitude Digital display graphics Time base Save adjust Single mode Start Measurement Displacement amplitude trigger graphics Save and Save Adjust graphics Delete Clear Return adjust graphics Key Calendar clock Regular Single Signal source t Help Numeral Save position Move the cursor Adjust frequency Clock Numeral Save position Move the cursor Adjust frequency Time base Time base amplitude trigger c Adjust frequency amplitude ursor Time base Time base gt Time amplitude trigger c Ad
25. surement mode Regular single Trigger level 3 8div 0 04div per step Single trigger slope selection Rising falling edge Trigger position 3 8div 0 04div per step Automatic setting Automatically set time base and adjustment vertical amplitude Cursor Automatic dV dt Vp p Vp Vp f T measurements measurements 41 Automatic Waveform measurement 5 0 1div sinx x interpolation accuracy Oscilloscope probe specification Input resistance 1MQ input capacitance 46pF Bandwidth DC 6MHz attenuation ratio 1 1 input Position X1 voltage 30Vp p M Input resistance TOMO input capacitance 15pF Bandwidth DC 60MHz attenuation ratio 10 1 Position X10 input voltage 300Vp p Symbols and icons IL Trigger slope rising falling edge div Graduation oscilloscope mode Hz Hertz frequency unit HOLD Waveform maintenance f T Frequency cycle V Volt mV Millivolt ms Millisecond ns Nanosecond us Microsecond 42 dt Signal time difference width dv Voltage difference 0 Power switch m Battery remaining capacity Instrument package AT H150 Scope meter 1 pc AT H150 oscilloscope probe 1 pc Signal output wire 1 pc Power supply adaptor 1 pc Carrying Case 1 piece Product manual containing product warranty regulations and user receipt 1 set 43 Nanjing Glarun Atten Technology Co Ltd Building A8 Tanglang Industrial Zone Xili Nanshan Sh
26. t or cancel auto shutdown from the oscilloscope system setting options To protect the built in battery from excessive discharge when the battery power is about to run out the instrument will also automatically shut down After auto shutdown or auto shutdown in low voltage is selected when there are less than 60 seconds from the shutdown time the instrument will buzz intermittently to prompt you 11 Battery charging When the instrument uses the built in battery for power supply the symbol m will appear on the top right corner of the LCD screen to approximately display the remaining capacity of the built in battery at any time For reference Once connected to the AC power supply adapter the built in battery will be in charge or charge protection state and the instrument automatically selects no shutdown state If the AC adapter is connected in the shutdown state the instrument will automatically enter the charge state and the LED in the key will light orange to indicate the charge state When the battery is fully charged the LED will turn to green If the AC adapter is connected after the instrument is powered on power provided by the AC adapter allows the instrument to run and charges the built in battery simultaneously The symbol m for electric quantity indication on the top right corner of the LCD screen will change periodically to indicate the charge state At the end of charging the symbol m for electric quantity indicati
27. tenuation is different from system setting the oscilloscope range or digital readout results will have deviations Edge selection rising edge or falling edge Select edge mode according to the needs of the measured signals Press the OK key to confirm press the F1 key to save and exit and press the F4 key to exit directly but all the settings just made are not saved and thus invalid 19 Regular mode The instrument defaults to regular mode after entering the oscilloscope measurement state Press the MODE key to return from the single measurement mode to the regular mode Regular measurement is generally used for repetitive waveforms When automatic measurement is used the oscilloscope will automatically select the appropriate scanning time base input amplitude control and trigger conditions display multi cycle stable waveforms and simultaneously display such parameters as Vp p Vp Vp frequency and cycle by means of digital readout Key operation in regular mode Key Function prompt Operation results Remarks Automatic Automatically set time base F1 Automatically display waveforms measurement amplitude and trigger Manually adjust time base TEM F2 Time base for increasing time base keys Manually adjust amplitude F3 Amplitude E lt for increasing amplitude eys 20 Display Vp Vp Vp p frequenc F4 Digital display Open and close and cycle Press the Fi key to
28. tion and cannot be freely replaced 13 Use special switching charging power supply It is prohibited to use the computer USB port for direct power supply Tips When using the AC adapter for power supply it is required to connect the instrument with AC power supply which is likely to lower the safety indexes of the instrument and result in more electromagnetic 344 interference It is recommended to use the built in battery for power supply as far as possible when measuring signals of below 500mv 14 Calendar and Clock Operation Enter calendar and clock mode Press and hold the key for more than 1 second to start the LCD will display the calendar interface Press the key to select analog clock digital clock calendar press any key of F1 F4 to exit the calendar clock mode and enter the oscilloscope state In the oscilloscope state long press the key to enter the calendar interface Calendar and clock setting In the calendar and digital clock state press the OK key to enter calendar and clock adjustment the analog clock cannot be set Press the keys to select year month day hour minute and second and press the 1 keys to adjust 1 for increase and for decrease when you press the keys to select the numeral to be set the numeral will flash then press the 1 keys to adjust to the numeral to be set and press the OK key to save settings 15 Calendar and clock adjustment keys Ke
29. tment The arrow at the right of the waveform display area points to the trigger level point to trigger the rising edge or the falling edge adjust the right arrow toward the horizontal middle axis position After pressing F1 to start once signal appears the oscilloscope will be triggered and capture it Once the trigger condition is set press the F2 key to exit trigger setting the parameters that have been set are saved Horizontal position adjustment Upon stable display of waveforms press the F4 displacement key to enter the horizontal position adjustment submenu Press the keys to adjust the horizontal position of waveforms Each time you press the keys the waveforms stored in the cache will be replayed at 1 4 length of the display area The number of sampling points is displayed at the bottom of the 31 waveform display area Press the F1 key to return to the initial state the sampling start point corresponds to the central perpendicular line of the screen press the F2 key to enter the save state to save the contents currently displayed on the screen press the F3 key to enter cursor measurement press the F4 key to return to the single measurement page Horizontal position adjustment submenu Key Function prompt Operation results 1 Initial point Waveform returns to the initial position F2 Save Save waveforms in the screen area after displacement F3 Measure The cursor measures the waveforms after dis
30. ultaneously keep the oscilloscope probe and the earth terminal of the signal output wire at the same potential to avoid damage arising from floating measurements 7 Do not modify or disassemble the products and accessories or use them for any purposes other than those authorized All the fittings and accessories cannot be arbitrarily replaced Safety sign CAUTION DANGER When located near other signs or the socket terminal this sign prompts users to follow the instructions in this manual to prevent instrument personal injury Instrument Introduction Main characteristics AT H150 50MHz Scope Meter 200MS s 50M digital storage oscilloscope DSO 10 2 156 2 function signal generator DDS Digital analog clock and calendar display Chinese help window to prompt key functions and measurement items DSO realizes one click AUTO automatic measurement Automatic display of measured waveforms and automatic zero correction Digital readout of Vp p Vp Vp f T dV and dt and measurement setting parameters Memory readout of up to 40 DSO waveforms Generate sine wave triangular wave sawtooth wave and square wave signals used in conjunction with oscilloscope function to compose a test system Use internal 200uS 400uS to test square waves facilitate the detection of HOT type inter turn faults ringing signal Auto shutdown and continuous wo
31. y Function prompt OK key Enter calendar and clock adjustment state and final confirmation key Negative selection of year month day hour minute and second key Positive selection of year month day hour minute and second 1 key Numeral increase adjustment key key Numeral decrease adjustment key 16 Oscilloscope Operation Enter oscilloscope mode In the calendar and clock state press the F1 F4 keys to enter the oscilloscope DSO mode Tips Use AT H150 dedicated oscilloscope probe and see Chapter Oscilloscope Probe Calibration in this manual for 399 probe calibration The probe cable core is ultrafine high frequency material Be especially careful when plug and use to avoid stretching and folding resulting in poor contact or damage of the probe Attention The maximum voltage at the input terminal of the oscilloscope is 30Vp p and the maximum input A is 300Vp p when the probe attenuator is at X10 the measured signals shall not exceed the above voltage range 17 System settings Long press the MODE key for more than 3 seconds to enter system setting as shown in the figure Th e 9151 LAL t O ACMA O 100 1 tam 2 RAAN lw 1 Coupling mode selection DC AC 2 Probe attenuation ratio selection 1 1 10 1 100 1 3 Edge selection rising edge f
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