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USER’S MANUAL. OS-782

Page 25

02-2010

lis

Figure 14.-

DC coupling.

4.11.2 Make Open and Close Settings on Channel

With CH1 taken for example:

Press

F2 Channel

first

then

Close

make a Close setting on CH1.

Press

F2 Channel

key

first

then

Open

make an Open setting on CH1.

4.11.3 Adjusting the Probe Scale

It is necessary to adjust the probe attenuation scale factor correspondingly in the

channel operation menu in order to comply with the probe attenuation scale. If it is a
10:1 probe, the scale of the input channel of the oscilloscope should be selected as

10X

to avoid any error occurring in the displayed scale factor information and tested data.

Press

F3 Probe

to jump to the relative probe:

Probe attenuation factor

Corresponding Menu Setting

1:1 1x
10:1 10x
100:1 100x
1000:1 1000x

Table.-

Probe attenuation factor and the corresponding menu setting

Содержание OS-782

Страница 1: ...OS 782 DIGITAL OSCILLOSCOPE MULTIMETER 0 MI1737 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com...

Страница 2: ...inly SAFETY RULES paragraph The symbol on the equipment means SEE USER S MANUAL In this manual may also appear as a Caution or Warning symbol Warning and Caution statements may appear in this manual t...

Страница 3: ...d trigger level position 21 4 9 Automatic Measurements 21 4 10 Freezing the Screen 22 4 11 Setting the Vertical CH1 and CH2 23 4 11 1 Setting the Channel Coupling 24 4 11 2 Make Open and Close Setting...

Страница 4: ...pacitance Measurement 53 5 4 5 Making a DC voltage Measurement VDC 54 5 4 6 Making a AC voltage Measurement VAC 54 5 4 7 Making a DC current Measurement AAC 55 5 4 8 Making an AC Current Measurement 5...

Страница 5: ...to repair electronic equipments given its large diversity of functions which causes that it become an useful tool in laboratories as well as for R D and training activities The measurement carried ou...

Страница 6: ...ure Except those specifications marked with the word Typical all specifications can be up to SAMPLING Sampling modes Normal sampling Peak detection Average value Sampling rate 100 MSa s INPUT Input co...

Страница 7: ...l to or larger than 50Hz Triggering lever range 6 divisions from the screen center Triggering level accuracy 0 3 divisions typical which is applicable to the signal with rise and fall time equal to or...

Страница 8: ...ing environment Temperature Operation 0 to 50 C Power adapter 0 to 40 C Storage Temperature 20 to 60 C Humidity in operation 0 to 10 C no condensation 10 to 30 C 95 30 to 40 C 75 40 to 50 C 45 Humidit...

Страница 9: ...from 40 Hz to 400 Hz Display Virtual value of the sine wave Range Accuracy Resolution 4 000 V 1 mV 40 00 V 10 mV 400 0 V 1 3 digits 100 mV Input protection 750 VDC or peak AC Direct Current ADC 1 Rang...

Страница 10: ...000k 1 40 00k 10 400 0k 100 4 000M 1 1 digit 1 K 40 00M 1 5 3 digits 10 K Capacitance Range Accuracy Resolution 51 20 nF 10pF 512 0 nF 100pF 5 120 uF 1nF 51 20 uF 10nF 100 uF 3 3 digits 100nF Diode Vo...

Страница 11: ...leads Multimeter Measurement probes Oscilloscope The negative of measurement like Osciloscope is common to the negative potential of the conector of input output of information El negative of measure...

Страница 12: ...h safety DIRECT CURRENT ALTERNATING CURRENT DIRECT AND ALTERNATING GROUND TERMINAL PROTECTIVE CONDUCTOR FRAME TERMINAL EQUIPOTENTIALITY ON Supply OFF Supply DOUBLE INSULATION Class II Protection CAUTI...

Страница 13: ...2010 English 2 2 Descriptive Examples of Over Voltage Categories Cat I Low voltage installations isolated from the mains Cat II Portable domestic installations Cat III Fixed domestic installations Ca...

Страница 14: ...USER S MANUAL OS 782 02 2010 Page 10...

Страница 15: ...11 02 2010 English 3 DESCRIPTION FOR FRONT PANEL AND KEYS See the following Figure 1 Figure 1 Front Pannel Description 1 Power adapter jack 2 USB port 3 Backlight switch 4 Power switch 5 A Multimeter...

Страница 16: ...st the positions of Cursor 1 V1 or T1 and Cursor 2 V2 or T2 11 OSC Oscilloscope display downward adjustment key 12 OSC Oscilloscope display upward adjustment key 13 OSC DMM Operation mode switching ke...

Страница 17: ...c quantity it must be charged for 4 hours the test tool must be turned off during charging The battery can supply power for 4 hours after being charged completely When supplying power by using the bat...

Страница 18: ...Window Description 1 Battery electric quantity indicating symbols including y 2 3 Measurement indicators 1 and 2 Diverse parameters can be shown Frequency f peak value Up V average value etc Two param...

Страница 19: ...scanning mode Stop The oscilloscope has stopped collecting the waveform data 7 The green pointer shows the trigger voltage level 8 Oscilloscope main menu Pressing the MENU button this menu will be vi...

Страница 20: ...eform represent CH2 4 4 Navigating a Menu The following example shows how to use the tool s menus to select a function as shown in the following figure 1 Press the MENU key to show the Functions Menu...

Страница 21: ...point position of channel 2 CH2 ZERO trigger horizontal position TIME and trigger level position TRIG The following example shows how to use OSC OPTION key to make a setting 1 Press once the OSC OPTI...

Страница 22: ...more time and the following display is visible at the bottom left side of the screen shown as the following figure Time S T CH1 Zero Figure 6 Zero point position of channel 1 6 Press OSC or OSC key t...

Страница 23: ...OSC S or OSC T key to adjust the zero position of Channel 2 in the vertical direction and press OSC or OSC key to adjust the horizontal position 9 Press OSC OPTION key once more and the following app...

Страница 24: ...een 2 Press the MENU S or MENU T key to select function setting and three options are visible at the bottom of the screen 3 Press F1 RESET key to select the factory settings The oscilloscope is set to...

Страница 25: ...rns to zero 2 Press OSC S and OSC T button simultaneously the trigger level position automatically returns to zero 4 9 Automatic Measurements The Oscilloscope offers 20 ranges of automatic scope measu...

Страница 26: ...H2 from Peak Peak item The measurement 2 window turns its color to be blue and shows the peak peak value for input CH2 See the following figure 10 NOTE When pressing the F1 F5 keys the measured channe...

Страница 27: ...nel has its own independent vertical menu and each item can be set respectively based on the specific channel Open the vertical menu of functions and select to CHANNEL 1 or CHANNEL 2 functions The par...

Страница 28: ...t vertical scale reading Invert Close Open Waveform is displayed normally Open the Invert function of the waveform setting 4 11 1 Setting the Channel Coupling With CH1 taken for example the measured s...

Страница 29: ...djust the probe attenuation scale factor correspondingly in the channel operation menu in order to comply with the probe attenuation scale If it is a 10 1 probe the scale of the input channel of the o...

Страница 30: ...X The position of the calculated waveform can be adjusted up and down with the CHM ZORE key used The corresponding operation function table Setting Description CH1 CH2 CH1 waveform minus CH2 waveform...

Страница 31: ...ly the trigger can turn an unstable display into a significant waveform When starting the acquisition of data the oscilloscope collects sufficient data to draw the waveform at the left side of the tri...

Страница 32: ...tion Now look at the display you can see a screen in the following figure 16 Figure 16 Edge triggering 4 14 Triggering Control There are two triggering modes including Edge triggering and Video trigge...

Страница 33: ...s is possible even if there is no triggering condition detected Acquisition of waveforms can only be done when the triggering condition is satisfied The sampling is performed on a waveform when one tr...

Страница 34: ...oscilloscope cannot acquire the waveform till it is triggered When there is not any trigger the oscilloscope will display the origin waveform without new waveforms captured 3 Single shot mode In this...

Страница 35: ...e trigger source Select CH2 as the trigger source Sync Line Field Odd Field Even field Line NO Make a video line trigger synchronization setting Make a video field trigger synchronization setting Make...

Страница 36: ...line valve Holdoff To go to holdoff menu 2 2 Back to previous menu When you go to the holdoff menu you can see a screen in the following figure 19 Figure19 Trigger Holdoff The Holdoff menu is describe...

Страница 37: ...lated noises Several average factors are available for being selected Average factor 4 16 64 o 128 Select the average factor 4 16 Display Setting Open the vertical menu of functions and select the DIS...

Страница 38: ...gure 20 figure 21 Figure 20 Dot style Figure 21 Vector style 4 16 2 Persistence With Persistence function selected the displayed saved original data gradually decay in color and the new data are brigh...

Страница 39: ...g functions do not work in the XY display mode Reference or digital value waveform Cursor Auto Setting Time base control Trigger control 4 17 Waveform Saving Setups The oscilloscope can save 4 wavefor...

Страница 40: ...H1 in address A To display the saved waveform on the screen do the following 6 Press the F4 key to select Start for the address A The waveform saved in address A will be displayed on the screen in gre...

Страница 41: ...ecting program 4 19 Making Automatic Measurements The oscilloscope can perform 20 types automatic measurements such as frequency cycle average value peak to peak value root mean square value Vmax Vmin...

Страница 42: ...2 Duty CH1 CH2 Measure the Duty of CH1 Measure the Duty of CH2 DelayA B CH1 CH2 Measure the DelayA B of CH1 Measure the DelayA B of CH2 DelayA B CH1 CH2 Measure the DelayA B of CH1 Measure the DelayA...

Страница 43: ...the waveform s flat top useful for square pulse waveforms Vbase Voltage of the waveform s flat base useful for square pulse waveforms Overshoot Defined as Vmax Vtop Vamp useful for square and pulse w...

Страница 44: ...cursor measurement Display the voltage measurement cursor and menu Display the time measurement cursor and menu Signal sources CH1 CH2 Select the waveform channel on which the cursor measurement will...

Страница 45: ...he bottom of the screen 3 Press the F1 key to the measurement type Time Two vertical dashed lines T1 and T2 appear on the screen 4 Press the F2 key and jump to the measured channel CH1 5 Press and hol...

Страница 46: ...e automatically according to the type amplitude and frequency of the signals The menu is as follows Function menus Settings Description Autoscale OFF ON Turn off Autoscale Turn on Autoscale Mode Verti...

Страница 47: ...ar on the right of the screen 2 Press MENU or MENU and choose Autoscale three options will show at the bottom of the screen 3 Press F1 and choose ON 4 Press F2 and choose Hori Vert 5 Press F3 and disp...

Страница 48: ...d flicker will be on the top left corner flicker every 0 5 second 2 At the mode of Autoscale the oscilloscope can self estimate Trigger mode Edge Video and Alternate and Type Edge Video If now you pre...

Страница 49: ...function 7 When video triggering the horizontal time scale is 50us If one channel is showing edge signal the other channel is showing video one the time scale refers to 50us as video one as standard...

Страница 50: ...n please execute the following steps 1 Press MENU key display the function menu on the right side of the screen 2 Press MENU or MENU key to select time base mode display three options at the bottom 3...

Страница 51: ...nsmission to the PC The oscilloscope OS 782 has an USB port that allows to transmit the data shown and or memorized from the instrument to the computer With the equipment a CD with the communication p...

Страница 52: ...ble between the equipment and the PC Power on the instrument the PC will automatically detect a new equipment and request about installing the suitable driver 4 Select the advanced method of installat...

Страница 53: ...eter functions of the test tool hereafter The introduction gives basic examples to show how to use the menus and perform basic operations 5 2 Making Meter Connections Use the three 4 mm safety banana...

Страница 54: ...tude measurement indicator 5 Running state indicators among which RUN expresses continuous update and STOP represents the screen locking 6 The reference value of the relative magnitude measurement 7 T...

Страница 55: ...do the following 1 Press the R key and R appears at the top of the screen 2 Insert the black lead into the COM banana jack input and the red lead into the V banana jack input 3 Connect the red and bl...

Страница 56: ...e Measurement 5 4 3 On off test To perform an On off test do the following 1 Press the R key and R appears on the top of the screen 2 Press the AUTO SET key three times and the following is shown on t...

Страница 57: ...the screen 3 Insert the measured capacitance into the quadratic jack and the screen shows the capacitance reading NOTE When measured value is less than 5 nF capacitance please use small capacitance me...

Страница 58: ...e is displayed on the screen Now you can see a screen that looks like the following Figure 38 Figure 38 DC voltage Measurement 5 4 6 Making a AC voltage Measurement VAC To measure the AC voltage do th...

Страница 59: ...the following 1 Press the A key and DCA appears at the top of the screen The unit on the main reading screen is mA mA and 20A will display on the right bottom of screen press F4 or F5 to switch the me...

Страница 60: ...on the main reading screen is mA 2 Press F5 key change to 20 A measurement he unit on the main reading screen is A 3 Plug current extended module in current measure jack then plug the probe in the mo...

Страница 61: ...nd 20A 400 mA is acquiescently 2 Press the AUTO SET key once and ACA is visible at the top of the screen 3 Insert the black lead into the COM banana jack input and the red lead into the mA banana jack...

Страница 62: ...ill be displayed on the screen 6 Press F4 return to 400mA measure Figure 43 AC current Measurement for 20A 5 5 Freezing the Readings You can freeze the displayed readings at any time 1 Press the RUN S...

Страница 63: ...reference value 1 Press R key and R is displayed on the top side of the screen 2 Press the AUTO SET key till C appears at the top of the screen 3 Plug capacitance extended module in capacitance measur...

Страница 64: ...ge is increased by a stage when pressing F1 key each time and when reaching the highest stage it jumps to the lowest stage by pressing F1 key once again To multiply the reading of dial pointer by mult...

Страница 65: ...timeter mode Probably you do not select the measuring mode In this case push down any key of the three keys V A and R Thus the relative measuring mode will be shown on the screen If the ERR is still d...

Страница 66: ...and whether the trigger level is out of the waveform range In such condition adjust and make the trigger level in the middle or select the non auto trigger mode Additionally press the AUTO SET key an...

Страница 67: ...id to damage the protective transparent layer 2 Only clean the equipment when it is power off with a previously dampened but not soaked smooth cloth A light detergent or water can be used Do not use a...

Страница 68: ...USER S MANUAL OS 782 02 2010 Page 64...

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