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10.1 Sampling Rate

(1) Sampling and Sampling Rate

Sampling is the oscilloscope sample the input analog signal and then convert it to digital data.

Gathering the digital data to waveform record and stored in memory.

Analog Signal

Sampling Points

Sampling rate refers to the time interval between two sampling points. The maximum sampling rate of

the UPO1000CS series is 1 GS/s.

The sampling rate will be affected by the timing scale and the change of storage depth.

UPO1000CS

oscilloscopes sampling rate is displayed in real-time at the top of the screen in the status bar. The horizontal

SCALE knob can adjust the horizontal time base or modify the memory depth to change it.

(2) The influence of low sampling rate

①

Waveform Distortion: Due to low sampling rate, the details of the waveform might be missing,

the sampling waveform might be different than the actual signal.

②

Wave Mixing: When the sampling rate is 2 times lower than the actual signal frequency (Nyquist

frequency), the frequency of the reconstructed signal will be less than the actual signal frequency.

③

Waveform Leakage: Due to low sampling rate, the reconstructed waveform might not reflect the

Summary of Contents for UPO1000CS Series

Page 1: ...UPO1000CS SeriesDigital Phosphor Oscilloscope User s Manual REV 1 2022 11 11 ...

Page 2: ...trument In order to use this instrument safely and correctly please read this manual thoroughly especially the Safety Requirements part After reading this manual it is recommended to keep the manual at an easily accessible place preferably close to the device for future reference ...

Page 3: ...are protected by patent rights in China and foreign countries including issued and pending patents UNI T reserves the rights to any product specification and pricing changes UNI T reserves all rights Licensed software products are properties of Uni Trend and its subsidiaries or suppliers which are protected by national copyright laws and international treaty provisions Information in this manual s...

Page 4: ...omestically to the location of the UNI T service center UNI T shall pay the return shipping fee If the product is sent to any other location the customer shall be responsible for all shipping duties taxes and any other expenses This warranty shall not apply to any defects or damages caused by accidental machine parts wear and tear improper use and improper or lack of maintenance UNI T under the pr...

Page 5: ...y the manufacturer This device is only for indoor use unless otherwise specified in the product manual Safety Statement Warning Warning indicates the presence of a hazard It reminds users to pay attention to a certain operation process operation method or similar Personal injury or death may occur if the rules in the Warning statement are not properly executed or observed Do not proceed to the nex...

Page 6: ...se check the region s voltage range Grounding Frame and chassis grounding terminal Grounding Protective grounding terminal Grounding Measuring grounding terminal OFF Main power off ON Main power on Power Supply Standby power supply when the power switch is turned off this device is not completely disconnected from the AC power supply CAT I Secondary electrical circuit connected to wall sockets thr...

Page 7: ... 030 Waste Do not place equipment and its accessories in the trash Items must be properly disposed of in accordance with local regulations EFUP This environment friendly use period EFUP mark indicates that dangerous or toxic substances will not leak or cause damage within this indicated time period The environment friendly use period of this product is 40 years during which it can be used safely U...

Page 8: ...static electricity The protection grade of this device is 4KV for contact discharge and 8KV for air discharge Measurement accessories Measurement accessories are of lower class which are definitely not applicable to main power supply measurement CAT II CAT III or CAT IV circuit measurement Probe assemblies and accessories within the scope of IEC 61010 031 and current sensors within the scope of IE...

Page 9: ...nce adjustment or parts replacement must be done by the relevant personnel of UNI T Cooling Do not block the ventilation holes at the side and back of this device Do not allow any external objects to enter this device via ventilation holes Please ensure adequate ventilation and leave a gap of at least 15 cm on both sides front and back of this device Safe transportation Please transport this devic...

Page 10: ... 60Hz Please use the attached power lead to connect to the power port Connecting to service cable This instrument is a Class I safety product The supplied power lead has good performance in terms of case ground This spectrum analyzer is equipped with a three prong power cable that meets international safety standards It provides good case grounding performance for the specification of your country...

Page 11: ...11 99 ...

Page 12: ... electronics automotive electronics field maintenance R D education etc Main Features Analog channel bandwidth 200MHz 100MHz Analog channel 2 Sampling rate 1 GS s not interleaving each channel is independent sampling Vertical scale 1 mV div 20 V div Ground noise 100 μVrms Storage depth 56 Mpts per channel Waveform capture rate of up to 500 000 wfms s Hardware real time continuous recording up to 1...

Page 13: ...I CAN and LIN trigger Creative hardware decoding function RS232 I2 C SPI CAN and LIN hardware decoding and full and deep storage decoding function Ultra Phosphor display 256 level gray scale display 7 inch WVGA 800 480 TFT LCD Multiple interface USB Host USB Device LAN EXT Trig AUX Out Trig Out Pass Fail Supporting SCPI programmable standard command Support WEB access and control ...

Page 14: ...re Use 4 3 Front Panel 4 4 Rear Panel 4 5 Operation Panels 4 6 User Interface 4 7 Introduction of Special Symbol This chapter introduces on using the oscilloscope for the first time the front and rear panels the user interface as well as the built in help system ...

Page 15: ...ent 4 2 Before Use To perform a quick verification of the instrument s normal operations please follow the steps below 1 Connect to the Power Supply The power supply voltage range is from 100 VAC to 240 VAC the frequency range is 50 60Hz Connect the oscilloscope to the power supply line that came with the oscilloscope or any power supply line that meets the local country standards Turn on the powe...

Page 16: ...H1 Make sure the probe s connector is properly connected with the oscilloscope Connect the probe s main clip and ground clip to the oscilloscope s compensating signal and ground terminal respectively Open CH1 and press the AUTO button View displayed waveforms as shown in Figure 4 2 Excessive Compensation Correct Compensation Insufficient Compensation Figure 4 2 Compensating Calibration of Probe If...

Page 17: ...p Automatic setting key 5 TRIGGER control 6 Default Help menu 7 Compensation signal and Ground terminal 8 EXT External trigger input port 9 Horizontal control area 10 Analog channel input port 11 Vertical control area 12 Control menu copy key 13 USB HOST interface 14 Power on off 1 2 3 4 10 8 9 11 7 14 5 6 12 13 ...

Page 18: ...can be used to communicate with the PC LAN The oscilloscope can be connected to the LAN network for remote control Pass Fail output port Pass Fail test output Trig_out signal Safety Lock Optional safety lock sold separately can be used for the oscilloscope stay at fixed position ...

Page 19: ...splay increasing or decreasing and position information will also be presented at the same time The vertical scale stepped as 1 2 5 order Press the knob allows the vertical adjustment to switch between coarse and fine adjustment mode 2 Horizontal Control HORI MENU Horizontal menu is for display window extension Multi Scopes timebase XY YT and trigger holdoff Horizontal POSITION Adjusting the horiz...

Page 20: ...ting function The oscilloscope will automatically adjust the vertical scale scan timebase and trigger mode according to the input signal to realize optimum waveform display Note Waveform auto setting function requires that the frequency of sine is no lower than 20 Hz the amplitude must be at least 20 mVpp 120 Vpp Otherwise the waveform auto setting function may be invalid 5 Run Stop Press this key...

Page 21: ...ype of cursor measurement information source and mode DISPLAY Press this key to enter the display setting menu to set the display type format grid brightness waveform brightness backlight brightness persistence time color temperature anti color temperature menu display and transparency STORAGE Press this key to enter storage interface Storage type includes setting waveform reference waveform and p...

Page 22: ... adjusted by turning POSITION knob on the horizontal control Press the knob returns the displacement back to 0 Trigger status Displays trigger source type slope coupling mode level etc a Trigger source There are CH1 CH2 mains electricity and EXT states CH1 CH2 will display different trigger state colors based on channel colors For example presents trigger source is CH1 b Trigger type The types are...

Page 23: ...icient 0 001 0 01 0 1 1 10 100 1000 and user defined USB host identification USB icon will be shown when USB device is connected LAN identification LAN icon will be shown when network wire is connected The current date and time Soft key menu Display the operation menu press the corresponding knob to select menu Press F1 F5 to change the sub menu Analog channel identification and Waveform Display c...

Page 24: ...e Analog Channel 5 2 Channel Coupling 5 3 Bandwidth Limitation 5 4 Volts div 5 5 Reverse Phase 5 6 Probe 5 7 Unit UPO1000CS provides two analog inputs channel that is CH1 CH2 In this chapter take the channel 1 as example to introduce vertical channel settings ...

Page 25: ...ng Channel coupling has three mode direct current alternating current and ground coupling Direct Current AC Current Ground 5 3 Bandwidth Limitation The bandwidth limit can set to 20 MHz and full bandwidth soft key menu set to 20 MHz The bandwidth of the oscilloscope is limited to about 20 MHz and the high frequency signal above 20MHz in the attenuation signal It is often used to observe high frequ...

Page 26: ...probe the coefficient needs to be set up in the channel soft key menu If the probe attenuation coefficient is 10 1 then the probe coefficient should set to 10X to ensure the correct voltage reading The probe can be set to 0 001X 0 01X 0 1 1 10 100 1000 and user defined 5 7 Unit Set the amplitude unit for the current channel Unit setting should set in channel it can set to V A W U and the default u...

Page 27: ...27 99 6 Horizontal System Settings 6 1 Horizontal Scale 6 2 ROLL Mode 6 3 Window Extension 6 4 XY 6 5 Multi Scopes 6 6 Trigger Holdoff ...

Page 28: ...ation will appear in the upper left corner of the screen as shown in Figure 6 1 it changes in real time Figure 6 1 When the time base is changing waveform will be change with trigger point to extension or compressed accordingly 6 2 ROLL Mode When trigger mode is in auto state rotate SCALE knob in the HORIZONTAL control area the oscilloscope will enter ROLL mode when horizontal scale slow to 20 ms ...

Page 29: ...rding waveform and waveform brightness cannot be used 6 3 Window Extension Window extension is used for magnifying a waveform to view the image detail In horizontal menu it can open window extension or open it by press SCALE knob in the HORIZONTAL control area In window extension mode screen will be divided into two display area as shown in Figure 6 3 Figure 6 3 Before enlarged waveform After enla...

Page 30: ...horizontal axis X axis input CH2 signal on the vertical axis Y axis In XY mode when CH1 is activated use POSITION knob in the vertical control area to move XY figure on the horizontal direction When CH2 is activated use POSITION knob in the vertical control area to move XY figure on the vertical direction Rotate the SCALE knob in the vertical control area to adjust amplitude scale of each channel ...

Page 31: ...hase relation of the two signals based on the Figure 6 6 Figure 6 6 6 5 Multi Scopes In multi scopes CH1 CH2 can be set to different timebase scale so that signals of different frequency in multiple channels can be observed at the same time Enter Multi Scopes interface via horizontal menu Switch Multi scopes to enter this mode as shown in Figure 6 7 Each channel can be set to different frequency a...

Page 32: ...start the trigger circuit During hold off the oscilloscope will not trigger until the end of holdoff time For example a group of pulse string it requires that trigger the first pulse string and the hold off time can be set as width of pulse string as shown in Figure 6 8 In HORI MENU use multipurpose knob and numeric keyboard to set hold off time Time range 100 ns 10 s Figure 6 8 ...

Page 33: ...LIN Trigger 7 19 DECODE Trigger determines when the oscilloscope starts to collect data and display waveform Once the trigger is correctly setup it can convert unstable signals into meaningful waveform In the beginning of data acquisition it collects enough data to compose the waveform at the left of the trigger point and continue to collect the data until the trigger condition is met When a trigg...

Page 34: ...so that the signal will be synchronized Auto trigger mode is suitable for Check DC signal or signal with unknown electrical feature Note This mode allows 50 ms div or in slower timebase scale to set no trigger signal in ROLL mode b Normal trigger The oscilloscope can only collect data when the trigger condition is satisfied When there is no trigger signal the oscilloscope will stop collect data Wh...

Page 35: ...he pre trigger data the waveform before generated can be observed For example capturing the glitch at the start of the circuit observing and analyzing the pre trigger data to find out the cause of the glitch 7 2 Edge Trigger The edge can be triggered by looking for the specific edge rising edge falling edge and random edge and electrical level Press edge trigger menu to set signal source edge type...

Page 36: ...f the trigger signal is greater than the pulse width setting it can set the lower limit of pulse width b It will be generated when the pulse width of the trigger signal is smaller than the pulse width setting it can set the upper limit of pulse width c It will be generated when the pulse width of the trigger signal is in the setting scope it can set the lower limit of pulse width and the upper lim...

Page 37: ... trigger and synchronize on the line signal of the video signal d Specified lines Set to trigger and synchronize on the specified video lines User can use the Multipurpose knob to specify the line number and the setting range is from 1 to 625 PAL SECAM or from 1 to 525 NTSC Note In order to observe the waveform details in the video signal user can set the memory depth a little bigger The UPO1000CS...

Page 38: ...vel can be adjusted with the LEVEL knob 4 The lower upper limit of time Set the time of slope range can be set to 8ns 10s Note The formula for calculating the slew rate is High level threshold Low level threshold Time For the set slew rate the time here is the time setting value For the slew rate of the trigger signal the time here refers to the time value between two intersection points where the...

Page 39: ...ulse width or within a range it can set the lower upper limit of time 4 The lower upper limit of time Compare the setting pulse width value with pulse width of channel It will generated when trigger condition is met range can be set to 8ns 10s 7 7 Over Amplitude Pulse Trigger Trigger level of over amplitude has a high level and a low level when the rising edge of the input signal crosses the high ...

Page 40: ...rigger on the rising falling edge of the input signal and the voltage level is within the setting level 2 Trigger Position Trigger position can set enter exit and time Select trigger position to confirm the timing of trigger a Enter It will be generated when the input signal enter the specified trigger level b Exit It will be generated when the input signal exit the specified trigger level c Time ...

Page 41: ...nce T between the edge of source 1 and the edge of source 2 is greater than the setting lower limit of time it can set the lower limit of time b It will be generated when the time difference T between the edge of source 1 and the edge of source 2 is smaller than the setting upper limit of time it can set the upper limit of time c It will be generated when the time difference T between the edge of ...

Page 42: ... Slope Select which edge that the input signal can be triggered It can select rising edge falling edge random rising The current slope is displayed in the upper right corner of the screen a Rising edge Set the timer to start when the rising edge of the input signal through the trigger level b Falling edge Set the timer to start when the falling edge of the input signal through the trigger level c ...

Page 43: ... a H Set the code value of the selected channel to High that is the voltage level is higher than the trigger level of the channel b L Set the code value of the selected channel to Low that is the voltage level is lower than the trigger level of the channel c X Set the code value of the selected channel to Ignored that is the channel is not part of the codes The oscilloscope will not trigger if all...

Page 44: ... arrives The hold time begins when the specified clock edge arrives and ends when the data signal crosses the trigger level again as shown in Figure 7 8 The oscilloscope will trigger when the setup time or the hold time is less than the preset time It is mainly used to locate and find error code and quickly find the signal that cannot meet setup hold time Figure 7 8 1 Pattern It has two modes H an...

Page 45: ...trigger is triggered on the Nth edge after the specified idle time For example as shown in Figure 7 9 it is set to trigger on the 2nd rising edge after the specified idle time the time between two adjacent rising edge then set the idle time as P idle time M M is the time between the 1st rising edge and the next rising edge P is the maximum time between the counting rising edge Figure 7 9 1 Slope S...

Page 46: ... not be triggered 1 Pattern There are H L X rising edge or falling edge The pattern setting of each channel is displayed at the bottom of the screen a H Set the pattern value of the selected channel to High that is the voltage level is higher than the trigger level of the channel b L Set the pattern value of the selected channel to Low that is the voltage level is lower than the trigger level of t...

Page 47: ...mission In order to solve the determination of data bits the protocol stipulates that both parties of communication should agree on the bit rate Usually the bit rate is defined as the number of bits that can be transmitted in 1s For example 9600 bps means 9600 bits can be transmitted in 1s Note that the start data parity and stop bits are all counted as bit so the baud rate does not directly equal...

Page 48: ...eform triggering at the start bit of RS232 protocol When send a single string or send the same string several times this trigger can be used to see a stable signal waveform and if the sent data changes the corresponding waveform will also be change b Error frame When receiving 0 in the stop state or data error occurs in the middle of data bits c Parity error RS232 protocol sets the parity bit to 0...

Page 49: ...will make the bus signal goes low i e the signals of multiple devices are wired and logic This special logic relation is the key to bus arbitration The protocol requires that the data SDA must remain stable while the clock line SCL is high and the data is usually transmitted in MSB form This is shown in the following diagram I2C trigger can set SCL source SDA source operating direction trigger con...

Page 50: ...ate the address transmission f Data It will be generated when the detected data is equal to greater than less than not equal to the setting value This feature is convenient for the data analysis and can capture the abnormal data g Address Data It will be generated when the addresses are the same and the data relationship meets the setting conditions during the transmission process This trigger con...

Page 51: ...otocol is simple SPI protocol transfer is shown in the following figure 1 SCL Source When SCL source is selected it can set either CH1 or CH2 as the clock input of SPI decoding signal 2 MOSI Source When MOSI source is selected it can set either CH1 or CH2 as MOSI input of SPI decoding signal 3 MISO Source When MISO source selected it can set either CH1 or CH2 as MISO input of SPI decoding signal 4...

Page 52: ...egment of data after a certain idle time 10 Idle time The idle time counter counts when the SCK is unchanged and judges whether the count value exceeds the preset value at the SCK valid edge if it exceeds it will be generated at the valid edge The counter will be cleared when each clock edge is valid The range can set to 80ns 1s 11 Frame Length Set the length of data unit the range can set from 1 ...

Page 53: ...t stuff error in the segment that requires bit filling the waveform will be triggered when continuous detect the error from the same level of 6 bits 4 ID Setting It can be set when trigger condition is Identifier or ID and data it can set frame format ID and direction a Frame Format it can set standard format extension format ID value range of different frame format is different b ID set the ID va...

Page 54: ... equal to the setting frame c Data Waveform will be generated when the sampled data by LIN protocol is in accord with user setting data It can help to find the specific data of transmission signal quickly that interest to user d ID and Data the oscilloscope will be generated when detect ID is equal to the setting frame e Wake up Frame the oscilloscope will be generated on wake up frame of signal f...

Page 55: ...7 19 DECODE DECODE button can set protocol decoding bus such as bus status display format event list and position a Bus Status set decoding bus to on or off b Display Format set the display format of decoding format which can set to hexadecimal decimal binary and ASCII c Event List the decoded data on the data line the corresponding line number time data and parity data will display in the format ...

Page 56: ...surement Menu 8 3 All Parameters Measurement 8 4 User Defined Parameters Automatic measurement contains all parameter automatic measurement user defined parameter measurement user defined parameter measurement statistic digital voltage meter indicator and selection indicator ...

Page 57: ...p Voltage from top to bottom of the waveform Mean The average amplitude of the waveform in the screen CycMean Average amplitude of the waveform in one period RMS The effective value The energy generated by the conversion of AC signal it corresponds to the DC voltage that generates equivalent energy CycRMS The energy produced by the conversion of AC signal in a period it corresponds to a DC voltage...

Page 58: ...g edge of source 2 FFLF Time from the last falling edge of source 1 to the last falling edge of source 2 Others Duty Ratio of positive pulse width to period Duty Ratio of negative pulse width to period OverSht The ratio of the difference between the maximum value and the top value of a waveform to its amplitude PreSht The ratio of the difference between the minimum value and the bottom value of a ...

Page 59: ...rage maximum and minimum Only enabled when user defined parameters display on the screen Difference Automatic calculates and displays the current user defined parameters the average standard deviation and measurement times Only enabled when user defined parameters display on the screen Digital Voltage Meter Digital Voltage Meter Turn on off the measurement of digital voltage meter the current meas...

Page 60: ...urement result is not valid range too large or too small 8 4 User Defined Parameters Press MEASURE to pop out user defined as shown in Figure 8 2 Figure 8 2 Rotating the Multipurpose knob to select parameter and press the knob to confirm For every selected parameter a symbol will appear in front of the parameter The user defined parameter will display on the bottom of the screen it can measuring 5...

Page 61: ...rement 9 1 Time Measurement 9 2 Voltage Measurement The cursor can be used to measure the X axis value time and the Y axis value voltage of the selected waveform Press the CURSOR button to enter the cursor measurement menu ...

Page 62: ...l position of A B to achieve time measurement 9 2 Voltage Measurement Voltage measurement is the same as time measurement the difference is the vertical cursor of time measurement change to horizontal cursor Press the CURSOR button to enter the cursor measurement menu select voltage source mode transparence to measuring voltage as shown in Figure 9 2 Figure 9 2 The upper left corner of the display...

Page 63: ...63 99 10 Sampling System 10 1 Sampling Rate 10 2 Acquisition Mode 10 3 Storage Depth Sampling is taking analog input and converts into a discrete points using analog to digital converter ADC ...

Page 64: ...S oscilloscopes sampling rate is displayed in real time at the top of the screen in the status bar The horizontal SCALE knob can adjust the horizontal time base or modify the memory depth to change it 2 The influence of low sampling rate Waveform Distortion Due to low sampling rate the details of the waveform might be missing the sampling waveform might be different than the actual signal Wave Mix...

Page 65: ...High Resolution The oscilloscope will averages the adjacent points of the sampled waveform and reduce random noise from the input signal and generate smoother waveforms 4 Average The oscilloscope obtains several waveforms to take the average and display the final waveform This method can reduce random noise By changing the acquisition mode setting to observe the waveform changes If the signal cont...

Page 66: ...city of the acquisition The relation of storage depth sampling rate and waveform length should meet the pattern storage depth sampling rate horizontal time base the number of grid of horizontal direction UPO1000CS the maximum storage depth 56 Mpts per channel In ACQUIRE menu user can freely to set the storage depth to auto 7k 70k 700k 7M 35M 56M The default setting is auto ...

Page 67: ...0 5 Backlight Brightness It can set the screen backlight brightness rotating multipurpose knob to set the brightness the default value is 50 6 Duration Time Duration time of waveform can be set to the minimum value 50ms 100ms 200ms 500ms 1s 5s 10s 20s infinite afterglow the default value is the minimum 7 Color Temperature It can intuitively reflect the probability of the occurrence of waveform sig...

Page 68: ...ith the storage function user can save the oscilloscope s settings waveforms and screen images to the oscilloscope or external USB storage devices and load the saved settings or waveforms anytime Press the STORAGE key to enter the storage function setting interface Note For the external USB storage device only supports FAT32 format the NTFS format is not compatible ...

Page 69: ...pe to the previously saved setting state 12 2 Waveform Storage and Load Table 12 2 Waveform Storage Menu Functions Option Descriptions Type Waveform Source CH1 CH2 Set which channel waveform to be saved Disk Lock Press save the waveform will be saved in oscilloscope USB Press save the waveform will be saved in external USB storage device USB CSV Press save the waveform will be saved as csv format ...

Page 70: ...aveform The callback REF waveform is shown in Figure 12 1 Figure 12 1 After the callback the Ref waveform status will be displayed in the lower left corner including time base scale and amplitude scale User can use the vertical and horizontal control knob to adjust the Ref waveform position on the screen and the time base scale and the amplitude scale Remark Only when the oscilloscope is connected...

Page 71: ...iew turn on the saved picture in USB and display it on the screen Off Exit preview The last Switch to the last picture in USB The next Switch to the next picture in USB 12 4 Print Screen The PrtSc key can be used to store the current screen in BMP format to an external USB storage device The bitmap can be opened directly on the PC This function can only be used when external USB storage device is ...

Page 72: ...72 99 13 Auxiliary Function Setting 13 1 System Function Setting 13 2 Recording Waveform 13 3 Pass Fail Test 13 4 Web Access Press the UTILITY key to enter the auxiliary function settings menu ...

Page 73: ... Output can set the output frequency of local square wave 10Hz 100Hz 1kHz 10kHz 1kHz by default 5 Frequency Meter Frequency Meter can set the state of frequency meter on off when the frequency meter is enabled the frequency information will displayed on the top of screen Frequency meter is the counter of trigger event frequency in the trigger channel display as hardware 7 digitals frequency meter ...

Page 74: ...utdown Default setting restore the oscilloscope to the default factory setting after starting up 13 2 Recording Waveform Recording Waveform can set to record the waveform this function includes recording setting record stop and display 1 Recording Setting Set the parameter of recording waveform which includes recording interval end of frame playback delay and the maximum frame a Recording Interval...

Page 75: ... not allow to perform the test Total Wfs presents the total frame number that has tested Pass Wfs presents the frame number that has passed Fail Wfs presents the frame number that has failed 2 Output Set which signal output by AUX port which can set to pass or fail a Fail Set the AUX port on the back panel of the oscilloscope to output pulse when fail and produce beeps b Pass Set the AUX port on t...

Page 76: ...the template range then the output is failed Table 14 2 Template Setting Function Option Description Reference Waveform CH1 CH2 Specify a channel waveform in CH1 CH2 and plus the horizontal and vertical tolerance as the conditions for creating a template Horizontal 1 100 Adjusting Multipurpose knob to select the range of horizontal tolerance the default value is 5 Vertical 1 100 Adjusting Multipur...

Page 77: ...sword setting Web user name and password see Utility System Information View waveform and control as shown in Figure 13 2 Figure 13 2 In Web page click the corresponding key and knob to control the oscilloscope In screen part of the oscilloscope can be set multiple operating such as ...

Page 78: ...he setting option directly The internet setting information of the oscilloscope as shown in Figure 13 3 Figure 13 3 2 Access Outer Network a Plug the network cable into the oscilloscope and the network can be access internet b Open frp proxy service on the server c Configure the oscilloscope frp proxy IP and port d The browser can access the proxy IP 9000 port and the access interface LAN is consi...

Page 79: ...in Figure 13 4 Figure 13 4 Internet information setting includes IP address acquisition method dhcp static local IP address subnet mask and gateway If IP setting is dhcp it not need to fill in the configuration IP address subnet mask and gateway click confirmation directly If IP setting is STATIC it should fill in the correct IP address subnet mask and gateway and then click confirmation as shown ...

Page 80: ...ration b frp proxy network information setting The setting interface setting as shown in Figure 13 6 Figure 13 6 frp proxy network information setting includes frp proxy network server IP address web_port pic_port proxy port ctrl_port proxy port Click to change frp setting that is to edit proxy IP address web_port pic_port ctrl_port as shown in Figure 13 7 ...

Page 81: ...frp proxy fails and cannot access If frp proxy is modified it cannot access by local area network IP 9000 If user need to recover the normal access press the DEFAULT button on the oscilloscope panel to reset the configuration and then use IP 9000 port to access 4 Password Setting Password setting is for the user account to log in After the user changes the login password the user needs to use the ...

Page 82: ...ion digital filter and advanced operation Enter mathematical operation menu adjusting POSITION or SCALE knob on vertical control area to change the vertical position and the vertical scales of the waveforms The math operation waveforms cannot be independent adjust the horizontal time base scale it will change automatically according to the horizontal time base scale of the analog input channel Mat...

Page 83: ...ply Vibration Analysis 1 Vertical Unit The unit of the FFT operation result can select Vrms and dBVrms Vrms and dBVrms display the vertical amplitude size in a linear way and decibel volts way If the FFT spectrum need to display in a large dynamic range dBVrms is recommended 2 Frequency Range a Range Start Frequency Set the start sweep frequency of FTT End of Frequency Set the end sweep frequency ...

Page 84: ...y resolution It is suitable for measuring the single frequency signals or seeking higher harmonics 5 Display Mode It can set to full screen split screen and waterfall curve 1 waterfall curve 1 a Split screen Display the source waveform and the waveform of FFT frequency spectrum waveform in split screen and extend display the spectrum b Full screen Superimposed display the source waveform and the F...

Page 85: ... The larger the number the smoother the average spectrum c Maximum hold the spectrum waveform displays the maximum value among the multiple sampling data and the corresponding spectrum waveform is displayed in blue d Minimum hold the spectrum waveform displays the minimum value among the multiple sampling data and the corresponding spectrum waveform is displayed in gray Sampling Point Mode a OFF t...

Page 86: ... d Manual use Multipurpose knob to move marker to arbitrary point Marker source Select spectrum wave as the marker source which is the spectrum waveform generated by different detection types under the detecting mode it can set to real time average maximum hold and minimum hold Not open trace is gray by default Marker peak Mark the peak value of the current directly 8 User s Presetting Chang the d...

Page 87: ... it is logic 0 14 4 Digital Filter 1 Digital Type a Low pass Only signal with the source frequency lower than the current frequency upper limit are allowed to pass b High pass Only signal with the frequency higher than the current frequency lower limit are allowed to pass c Band pass Only signal with the frequency higher than the current frequency lower limit and lower than the current frequency u...

Page 88: ...b to display the options in the list after Expression When editing the expression user can press the delete key to delete clear and application the expression After applying the expression the oscilloscope performs operations according to the expression and displays the result 2 Description of Math Advance a Expression Here refers to the formula consisting of channel function variable and operator...

Page 89: ... Calculates the square root of the selected source Intg Calculates the integral of the selected source Diff Calculates the discrete time differential of the selected source d Operator The function of each operator as shown in Table 14 3 Table 14 3 Function Name Description x Arithmetic operators add subtract multiply divide index Parenthesis it is used to increase the operation priority within par...

Page 90: ...90 99 15 Additional Function Key 15 1 Auto Setting 15 2 Run Stop 15 3 Factory Setting ...

Page 91: ...to set When the key is pressed and the green light is on it indicates the RUN state and if the red light is on after the key press it is the STOP state In the running state the oscilloscope is continuously acquiring waveform and the upper part of the screen shows AUTO in the stop state the oscilloscope stops the acquisition and the upper part of the screen shows STOP Press the RUN STOP key to swit...

Page 92: ...ing mode DC Trigger mode Automatic Display Type Vector Format YT Duration time The minimum Grid brightness 40 Waveform brightness 50 Background brightness 50 Transparence ON Other System Storage type Waveform Frequency meter ON Measurement OFF clear all measurement Cursor OFF Language Keep the settings before shutdown Menu display Manual Square wave output 1 kHz Output selection Trigger Sampling m...

Page 93: ...93 99 16 System Prompt and Troubleshooting 16 1 Description of system prompt 16 2 Troubleshooting ...

Page 94: ... the reference waveform and the setting file is set successfully The setting is failed It will be prompt when fail to set recall the reference waveform and the setting file The factory setting is succeed It will be prompt when the Default function is enabled The signal is not detected It will be prompt when AUTO operating is performed but no input signal In XY mode this function is forbidden It wi...

Page 95: ...efined is successful deleted It will be prompt when the user defined parameter is cleared The system is shutting down It will be prompt when the oscilloscope is shutting down This function is invalid when it in STOP It will be prompt when turn on off Multi Scopes switch storage depth and sampling mode XY function in STOP state Automatic setting is completed It will be prompt when automatic setting...

Page 96: ...g extend window MATH open XY and DECODE function in Multi Scopes In DHCP mode key is not worked It will be prompt when confirm IP configuration in DHCP mode Invalid subnet mask It will be prompt when the subnet mask value is out of 255 255 255 0 Auto calibration is failed It will be prompt when the auto calibration is failed Auto calibration is succeed It will be prompt when the auto calibration i...

Page 97: ...he measured voltage amplitude value is 10 times larger or smaller than the actual value Check the channel probe attenuation coefficient setting is consistent with the used probe attenuation rate 4 There is a waveform display but not stable a Check the trigger source in the trigger menu and confirm that it matches the input channel of the actual signal b Check the trigger type general signal should...

Page 98: ...e any abrasive chemical cleaning agent on the instrument or probes Warning Please confirm that the instrument is completely dry before use to avoid electrical shorts or even personal injury caused by moisture Appendix B Warranty Overview UNI T UNI TREND TECHNOLOGY CHINA CO LTD ensures the production and sale of products from authorized dealer s delivery date of three years without any defects in m...

Page 99: ...r via email Our email address is infosh uni trend com cn For product support outside mainland China please contact your local UNI T distributor or sales center Many UNI T products have the option of extending the warranty and calibration period please contact your local UNI T dealer or sales center To obtain the address list of our service centers please visit our website at URL http www uni trend...

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