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Holding of measurement data

Press data holding button “S”, the displayed reading will be held. At this time, the icon of data holding “HOLD”

will be displayed on the LCD screen. Press “S” button again, normal operation will be resumed.
1. After the data is held, press “S” button for 2 seconds to access to database function. In this way, the data is saved.
2. Under the data holding state, a small window (dynamic data window) will appear on the upper right corner of the
screen. The data in the window is still constantly refreshed.
3. Once the instrument is in data holding state, the measuring range control mode will be switched to manual mode.
4. When the measuring range or measuring function is changed, the instrument will automatically exit the holding
state.

Содержание MDS8207

Страница 1: ...Oscilloscope Multimeter User s Manual...

Страница 2: ......

Страница 3: ...please carefully read this manual especial the part of Safety Instructions Please also keep this manual property for future reference Contents SAFETY INSTRUCTIONS 1 INTRODUCTION TO THE INSTRUMENT 4 Ma...

Страница 4: ...l 12 About the trigger mode 13 Prompt message of scanning status 13 Trigger operations of single scan 14 Cursor measurement reading function 15 Automatic measurement of waveform 17 Automatic setting o...

Страница 5: ...0A 32 Frequency counting and measurement of duty ratio 33 Resistance measurement 35 Capacitor measurement 38 Temperature measurement 39 Measurement of amplification factor of triode 39 Storage and rea...

Страница 6: ...ot touch the metal part of the probe of test leads with your finger 2 Do not operate the multimeter in high temperature moist rainy inflammable and explosive environment or when the instrument is wet...

Страница 7: ...t measurement of circuits with a voltage of over AC 250V 8 When measuring functions are pointed at the gears of current resistance continuity test diode capacitance and etc never bridge the test leads...

Страница 8: ...e avoid touching the testing end of test leads when there is voltage in the terminal s Instruction Instruction suggests that special attention should be paid during operation as wrongful operation wil...

Страница 9: ...eform without taking into account the waveform parameter and distortion REL effectively eliminate the lead resistance distributed capacitance and interference signal The functions include DC AC voltag...

Страница 10: ...range and work mode The option menu displayed on the LCD serves as the prompt for action R Waveform capture button S Data save button Instrument switch AC DC Voltage Frequency Duty ratio Resistance Di...

Страница 11: ...operation for a set period of time the instrument will get into automatic sleep To turn off the function of automatic sleep user may press the R button and then rotate the rotary knob to turn on the i...

Страница 12: ...ided for the testing rod of the multimeter it hard to thoroughly eliminate the interference when using the testing rod of the multimeter for waveform test To meet the needs of high quality test user m...

Страница 13: ...lows Horizontal adjustment Vertical adjustment Triggering control Cursor function TIME VOLT TRIG CURS F1 F2 F3 F4 1 Press F1 button TIME to enter into sub option menu of time base setting and adjust t...

Страница 14: ...rizontal position EXIT POS F1 F2 F3 F4 1 Press F1 button EXIT to exit the sub option menu of time base setting and back to the main option menu 2 Press F2 button and F3 button to adjust the time base...

Страница 15: ...sition Back Adjustment of horizontal position Center the horizontal position EXIT RESET F1 F2 F3 F4 1 Press F1 button EXIT to exit the sub option menu of adjustment of waveform horizontal position and...

Страница 16: ...n option menu 2 Press F2 button and F3 button to adjust the vertical amplitude V div Instruct ions To ensure the stability of circuit inside the instrument the movement of adjustment of sensitivity ma...

Страница 17: ...level Under the sub option menu of trigger setting press F4 to enter into sub option menu of adjustment of trigger level Back Adjustment of trigger level Reset of trigger level EXIT RESET F1 F2 F3 F4...

Страница 18: ...mode to monitor low frequency irregular signal or observe the amplitude of signals such as waveform of DC power etc Normal After trigger signals are detected the scopemeter will start collecting wavef...

Страница 19: ...in the following steps 1 Adjust the vertical amplitude V div and horizontal amplitude to adapt to the waveform to be collected 2 Select appropriate trigger level gradient and then select single trigge...

Страница 20: ...adjustment of trigger mode and adjust the trigger mode to automatic mode or normal mode Cursor measurement reading function The cursor measurement reading function can be used to measure the voltage...

Страница 21: ...lows the measurement of voltage difference between the upper and lower cursors i e the crest of measured waveform peak value The sub option of voltage difference V measurement is as follows Back Adjus...

Страница 22: ...e accurate than visual observation or cursor measurement The measurement result is displayed beneath the waveform The measurement result of amplitude is displayed on the left side and that of frequenc...

Страница 23: ...ally set the vertical horizontal amplitude and the trigger level If you need to optimize the display of waveform you may make further adjustment manually If the instrument cannot find appropriate scan...

Страница 24: ...of holding waveform is to hold the current data or waveform so as to make close observation easier The current wave also has to be held before it is stored into database There are two methods for hold...

Страница 25: ...back to measurement status for recovery press S button for 2 seconds to enter into database and save the waverform Once waveform is held any adjustment of waveform will be disabled If you need to chan...

Страница 26: ...p Page down Delete Save ERASE SAVE F1 F2 F3 F4 a Press F1 button to select the next data position in order b Press F2 button to select the next page in order c Press F3 button ERASE to erase the wavef...

Страница 27: ...has been saved the original waveform will be replaced Therefore user has to be careful during operation so as to prevent loss of useful data After accessing the memory waveform reading function all st...

Страница 28: ...ge up Page down Delete Cursor measurement ERASE CURS F1 F2 F3 F4 a Press F1 button to read the previous waveform b Press F2 button to rest the next waveform c Press F3 button ERASE to delete the wavef...

Страница 29: ...ration methods When switching measurement functions please make sure to keep the probe of test leads away from the test point Basic content displayed under mutlimeter mode The following are the basic...

Страница 30: ...follows thef ollowing circulation order voltage AC DC frequency duty ratio resistance diode continuity capacitancetemper aturetriodemA current AC DC 10A current AC DC AC waveformDC waveform For multi...

Страница 31: ...occasions where a certain measuring range shall be fixed user may perform the following operations 1 Press R button and the mark of automatic measuring range AUTO will disappear and the instrument en...

Страница 32: ...ll be saved as the reference value Then the relative value mode is activated 2 The value displayed on the screen is the difference between the current measured value and the expected reference value 3...

Страница 33: ...2 seconds to access to database function In this way the data is saved 2 Under the data holding state a small window dynamic data window will appear on the upper right corner of the screen The data in...

Страница 34: ...easurement Stop measurement Reset peak value EXIT RUN STOP RESET F1 F2 F3 F4 a Press F1 button EXIT to exist the peak value holding mode b Press F2 button RUN to run measurement of peak value c Press...

Страница 35: ...ent never apply 700V AC or 1000V DC voltage on the measuring end for more than 10 seconds 1 Plug the banana plug of the black test line into the negative COM socket and the banana plug of the red test...

Страница 36: ...ult includes the value decimal point and polarity The option menu of voltage measurement is as follows Relative value mode Peak value holding mode Extended measuring function REL P H SEL F1 F2 F3 a Pr...

Страница 37: ...ive COM socket and the banana plug of the red test line into the positive 500mA or 10A socket 2 Rotate the rotary knob to select or function Then a sign of CURRENT will appear on the top of the screen...

Страница 38: ...ent of frequency duty ratio In this way the frequency counting and duty ratio also become extended function of the function of voltage and current measurement 1 Plug the banana plug of the black test...

Страница 39: ...h are close to 10MHz or higher a large amplitude of voltage current signal may be required Attention When carrying out frequency counting and measurement of duty ratio manual mode shall not be adopted...

Страница 40: ...on of resistance measurement is currently available 3 Bridge the test lead over the circuit or component to be tested The tested part online is better to be removed from the original circuit connectio...

Страница 41: ...Rotate the rotary knob to select measurement function Then a sign of RESISTANCE will appear on the top of the screen to remind user that the function of resistance measurement is currently available 3...

Страница 42: ...void electricity shock please do not perform continuity test of circuit with load of voltage 1 Plug the banana plug of the black test line into the negative COM socket and the banana plug of the red t...

Страница 43: ...nce measurement is currently available 4 Press F3 button SEL to select the function of capacitor measurement Then a sign of CAPACITANCE will appear on the top of the screen to remind user that the fun...

Страница 44: ...to touch the liquid or surface of object whose temperature is to be measured and read the displayed temperature Centigrade or Fahrenheit Measurement of amplification factor of triode 1 Rotate the rota...

Страница 45: ...s 4 If there is data on a certain position the value and unit of the data will be also listed The operation option menu of database is as follows Select record position Select a neighboring page Delet...

Страница 46: ...d the data first If the data is not held the F4 mark SAVE will not appear after you enter into the database If the data is saved to a recording position where original data has been saved the original...

Страница 47: ...ries Auto shutdown 15 minutes or disabled Power shortage Operation height 0 2000m Use time More than 8 hours Storage capacity 100 Data 50 Waveform Use environment 0 C 40 C 75 RH Storage condition 10 C...

Страница 48: ...f trigger gradient Rising descending edge Adjustment of trigger position 12 div 0 1div step Automatic setting Automatic setting of time base and vertical amplitude Cursor measurement function dV dt 1...

Страница 49: ...nge can be switched only through manual measurement Function Measuring range Resolution Uncertainty DC voltage 600 0mV 0 1mV 1 0 rdg 10dgt 6 000V 1mV 60 00V 10mV 600 0V 100mV 1000V 1V 1 5 rdg 10dgt AC...

Страница 50: ...10 00A 1mA 10mA Resistance 600 0 0 1 1 2 rdg 5dgt 6 000k 1 60 00k 10 600 0k 100 6 000M 1k 60 00M 10k 3 0 rdg 10dgt Capacitance 9 999nF 1pF 3 0 rdg 10dgt 99 99nF 10pF 999 9nF 100pF 9 999 F 1nF 3 0 rdg...

Страница 51: ...of resistance about 50 Switching of automatic measuring range Applicable to various measurement functions Reminding of over load of measuring range O L Over load Measurement speed 2 5 times second Dy...

Страница 52: ...UA Manual selection of measuring range MAX Maximum value mA milliampere mF Millifarad unit of capacitance MIN Minimum value ms Millisecond NORM Normal trigger means nF Nanofarad unit of capacitance PO...

Страница 53: ...ard downward movement of cursor Option adjustment or leftward rightward movement of cursor Remaining capacity of battery Trigger gradient rising edge descending edge Sounding continuity test Power swi...

Страница 54: ...of the instrument often Do not use rough objects chemical solutions or alcohol etc Replacement of protective tube 1 Remove the probe from test point and shut down the power 2 Loosen the fixing screw a...

Страница 55: ...nnected 2 Rotate the rotary knob to the power off position and then rotate it to the measurement position Incorrect voltage reading 1 The reference point of zero voltage of OSC mode is incorrect 2 Whe...

Страница 56: ......

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