Extech Model MS460 - 60MHz - Manuals

5   V5.1  ‐  March   2010     P RODUCT C ONTENTS (R EFER TO THE F IG . 1 BELOW ) 1. MS420 / MS460 Instrument 2. AC Adaptor 3. Oscilloscope Probes (2); Grey in color 4. Multimeter test leads (2); One black, one red 5. USB mass storage connection cable 6. Extension module for low capacitance measureme...

  6   V5.1  ‐  March   2010     S AFETY I NFORMATION Please read the user manual before use to ensure safety and precision S AFETY  S YMBOLS AND  T ERMS    S AFETY S YMBOLS T HESE SYMBOLS MAY APPEAR IN THIS MANUAL OR ON THE INSTRUMENT : W ARNING : “W ARNING ” IDENTIFIES CONDITIONS & ACTIONS THAT...

  7   V5.1  ‐  March   2010     G ENERAL  S AFETY  I NFORMATION   Carefully read the following safety information in order to avoid personal injury and damage to this product or to products connected to it. This product must only be used in the specified manner to prevent danger and hazard to produc...

  9   V5.1  ‐  March   2010     I NPUT C ONNECTIONS I NPUT  C ONNECTIONS   See Figure 2 below Figure 2 Description 1. The power adapter is use to supply AC power and for battery recharging 2. Multimeter test leads 3. Multimeter input jacks (L to R: Current 2A-10A input, mA Current input, COM ground ...

  10   V5.1  ‐  March   2010     F RONT  P ANEL AND  K EYPAD  O VERVIEW   Figure 3

  11   V5.1  ‐  March   2010     Description of Meter Front Panel and Keypad (Figure 3) 1. AC adapter Port 2. RS-232C Port 3. USB Port 4. USB Mass Storage Port 5. Power switch 6. F1 – F5 Soft-key options 7. AUTO SET: In the Scope mode, the meter automatically selects the horizontal/vertical scale an...

  12   V5.1  ‐  March   2010     B ASIC O SCILLOSCOPE F UNCTIONS A BOUT THIS  C HAPTER   This chapter provides introductory Oscilloscope instructions. This introduction does not cover all of the oscilloscope capabilities but provides basic examples of menu navigation and operations. Detailed instruc...

  13   V5.1  ‐  March   2010     Description of Oscilloscope Display Screen (Figure 4) 1. Battery power status icon ( , , and ) 2. Auto measurement screen No. 1 (“f” for frequency, “T” for cycle, “V” for average value, “Vp” is the peak-peak value and “Vk” is the root-mean-square value 3. Auto measur...

  14   V5.1  ‐  March   2010     13. The coupling mode for CH2; “~” AC, “-” DC, and ground 14. The vertical Voltage units scale for CH2 15. The coupling mode for CH1; “~” AC, “-” DC, and ground 16. Vertical Unit Scale for CH1 17. The blue pointer shows the ground point of the waveform for CH2 (zero ...

  15   V5.1  ‐  March   2010     M ENU  D ESCRIPTION   The following explains how to navigate the menus to select a function. 1. Press the MENU key to open the Function Menu. The Menu appears on the right of the screen with the corresponding options available on the bottom of the screen. Press MENU ...

  16   V5.1  ‐  March   2010     Figure 6 2. Press ◄ (yellow) or ► (yellow) to adjust the main time base. Press ▲ (yellow) or ▼ (yellow) to adjust the trigger horizontal position. 3. Press OPTION again and the following will appear: ◄ / ► – Time ▲ / ▼ – Trig See Figure 7: Figure 7 4. Press ◄ (yellow...

  17   V5.1  ‐  March   2010     When triggering in the Alternate trigger mode: 7. Press OPTION and the following will appear: —Time —Trig 2 See Figure 8: Figure 8: 7. Press ◄ (yellow) or ► (yellow) to adjust the time base horizontal position and press ▲ (yellow) or ▼ (yellow) to adjust the trigger ...

  18   V5.1  ‐  March   2010     Figure 9: 9. Press ◄ (yellow) or ► (yellow) to adjust the main time base and press ▲ (yellow) or ▼ (yellow) to adjust the trigger horizontal position for Channel 1. 10. Press OPTION again to return to step 6 above. Glossary of Terms z Vertical scale factor: The volta...

  21   V5.1  ‐  March   2010     Refer to Figure 11: Figure 11: Automatic Scope Measurements D ATA  H OLD  (F REEZING THE  D ISPLAYED  R EADING )  To freeze any displayed reading or waveform, follow these steps: 1. Press the RUN/STOP key to freeze the screen: STOP appears at the top (right) of the s...

  23   V5.1  ‐  March   2010     1. Press the MENU key; the function menu will appear on the right side of the screen. 2. Press MENU ▲ or MENU ▼ to select DISP SET. Four (4) selectable options will appear at the bottom of the screen.

  24   V5.1  ‐  March   2010     3. Press the F2 key to select 1 sec, 2 sec, 5 sec, infinite or OFF . Select a 1, 2, or 5 second waveform display duration as desired. When Infinite is selected the waveform will remain on the screen indefinitely. When OFF is selected, the Persistence function has no ...

  25   V5.1  ‐  March   2010     Figure 15: Peak Detection Glossary of Terms • Collecting mode: The oscilloscope converts the collected analog data into digital data for each of the following three modes: Sampling, Peak Detect, and Averaging. • Sampling: The waveform sampling resolution in seconds. ...

  26   V5.1  ‐  March   2010     After a reset, the Oscilloscope is dc-coupled so that ac and dc voltages appear on the screen. Use ac-coupling to observe a small ac signal that rides on a dc signal. To select ac-coupling, perform the following steps: 1. Press the MENU key; the function menu will ap...

  28   V5.1  ‐  March   2010     5. Press ▲ (yellow) or ▼ (yellow) to adjust the vertical display position of waveform M. Press ◄ (yellow) o r ► (yellow) to adjust the display time factor for waveform M. Refer to Figure 18. Figure 18: Waveform Mathematical Calculations USB  MASS STORAGE DEVICE  /   ...

29     A DVANCED O SCILLOSCOPE F UNCTIONS A BOUT THIS  C HAPTER   Advanced Oscilloscope functions are covered in this chapter. V ERTICAL  S ETTINGS FOR  CH1  AND  CH2  Each channel has its own independent vertical menu and each item can be set respectively based on the specific channel. To make vert...

  31   V5.1  ‐  March   2010     Figure 20: AC Coupling

  32   V5.1  ‐  March   2010     Figure 21: DC Coupling O PEN AND C LOSE M EASUREMENT C HANNELS CH1 will be used in this example . Press the F2 Channel key and then OFF to Close CH1. Press the F2 Channel key and then ON to Open CH1. S ETTING THE PROBE ATTENUATION To prevent excessive input voltage, ...

  33   V5.1  ‐  March   2010     I NVERT A W AVEFORM Inverted waveform: The displayed signal reverses 180 degrees relative to ground. Press F4 Invert to invert the waveform; press F4 Invert again to exit the inversion mode.

  34   V5.1  ‐  March   2010     WAVE   MATH   F UNCTION  M ENU  S ETTINGS   The WAVE MATH functions show the calculation results (adding, subtracting, multiplying or dividing CH1 and CH2 channel waveforms). Arithmetic operation results can be displayed using a grid or a cursor. The amplitude of the...

  35   V5.1  ‐  March   2010     Figure 22: Waveform Mathematics S ETTING THE  T RIGGER  S YSTEM   The trigger determines when the acquisition and display of waveform data occurs. When starting to acquire data, the oscilloscope collects sufficient information to draw the waveform at the left side of...

  36   V5.1  ‐  March   2010     T RIGGERING  C ONTROL   There are three triggering modes: Edge triggering, Video triggering, and Alternating triggering. Each trigger mode has its own function menu. Edge triggering: The edge trigger triggers on the incoming signal edge. Use the edge trigger for all ...

  37   V5.1  ‐  March   2010     The Edge triggering menu is described in the following table Function menu Settings Description   Slope Rising Falling Triggering on the rising edge of the signal Triggering on the falling edge of the signal. Source CH1 CH2 CH1 is used as the trigger source CH2 is us...

  38   V5.1  ‐  March   2010     Figure 24a (screen 1) and 24b (screen 2): Odd Field Video Trigger Fig. 25: Video Line trigger (screen 1) Fig. 26: Video Line Trigger (screen 2) The Video triggering menu is described in the following table. Function menu Settings Description First screen Polarity Nor...

  39   V5.1  ‐  March   2010     Odd field Even field Line NUM Set synchronous trigger in video odd line Set synchronous trigger in video even line Set synchronous trigger in video Line NUM Move to next menu When the sync is Line, Field, Odd Field, Even Field, the second page is as follows: MODU (Mo...

  41   V5.1  ‐  March   2010     Coupling AC DC HF Rjc LF Rjc The DC component is blocked All components are allowed to pass The HF part of the signal is blocked and only the LF component is allowed The LF part of the signal is blocked and only the HF component is allowed SENS Set trigger sensitivit...

  42   V5.1  ‐  March   2010     Line NUM Set synchronous trigger in video Line NUM When the sync is Line, Field, Odd Field, Even Field, the menu is as follows: MODU (Modulation) NTSC PAL/SECAM Common video standard (used in the U.S.) Least common standard (common in Europe) Hold-off Move to the Hol...

  43   V5.1  ‐  March   2010     When the ‘Hold-off’ menu is accessed the screen will appear as below:     Figure 27b: ‘Hold-off’ menu screen (MS420) Refer to the Table below for details on the ‘Hold-off’ mode: (MS420 only) Function menu Settings Description   OFF Time Select a time duration (hold-o...

  44   V5.1  ‐  March   2010     Glossary of Terms • Hold-off time: Programmable time period between trigger events (100ns default). • Trigger modes : There are three trigger modes: Auto (acquires signal continuously), Normal (acquires signal when trigger conditions are met) and Single (manually tri...

  45   V5.1  ‐  March   2010     A CQUISITION  M ODE   The Acquiring Mode menu is described in the Table shown below. Function menu Settings Description Sample The waveform data sampling time interval. The sample mode accurately reconstructs the waveform, but cannot respond to rapid changes and sudd...

  46   V5.1  ‐  March   2010     XY vertical axis Carry Bitmap Vectors Data transmitted in bitmap format (dots) Data transmitted in vector format (line) D ISPLAY S TYLE The display style includes Vector and Dot display types, as shown in Figure 28 and 29.

  47   V5.1  ‐  March   2010     Figure 28: Dot Style Figure 29: Vector Style P ERSISTENCE The user can select the duration of time that past traces remain on the display. The selections are 1, 2, 5 seconds, Infinite, and OFF. XY M ODE This mode is only applicable to simultaneous CH1 and CH2 measure...

  49   V5.1  ‐  March   2010     Description of Control Keys: ■ The CH1 VOL and CH1 ZERO keys for CH1 are used to set the horizontal scale and position. ■ The CH2 VOL and CH2 ZERO keys for CH2 are used to set the vertical scale and position continuously. The following functions are not available in ...

  51   V5.1  ‐  March   2010     Refer to Figure 30: Figure 30: Save and Recall Waveforms F UNCTION  S ETTING  M ENU  ( REFER   TO   T ABLE   BELOW )   Press the MENU button and use the up/down arrow keys to scroll to FUNCTION Function menu Description Recall Factory Set the meter’s settings to thei...

  52   V5.1  ‐  March   2010     and probes from the oscilloscope 3. After removing all cables, press F2 (Auto calibration) again. The Auto-calibration automatically starts and a status message appears. To interrupt calibration, press any key during the calibration.

  53   V5.1  ‐  March   2010     A UTOMATIC  R ANGING  M EASUREMENTS    The oscilloscope can perform twenty (20) automatic measurements: Frequency, cycle, average, peak-to-peak, root mean square, Vmax, Vmin, Vtop, Vbase, Vamp, overshoot, pre-shoot, rise time, fall time, +width, -width, +duty, -duty,...

  55   V5.1  ‐  March   2010     options will then appear at the bottom of the screen 3. Press the F1 key to select the frequency measurement of CH1. The measurement window will appear red in color and show the frequency of CH1 4. Press the MENU ▲ or MENU ▼ key to select MEAS SET 2 . Five (5) select...

  56   V5.1  ‐  March   2010     Horizontal HORI—VERT changing horizontal setting Adjust horizontal scale without changing vertical setting Adjust the vertical and horizontal settings Display one or two periods Display multi-period waveforms To measure CH1 voltage: 1. Press MENU , the function menu ...

  57   V5.1  ‐  March   2010     Fig 32: Autoscale Horizontal - Vertical multi-period waveforms Fig 33: Autoscale Horizontal - Vertical mono-period waveform

  58   V5.1  ‐  March   2010     Fig 34: Vertical mode multi-period waveform Fig 35: Horizontal mode multi-period waveform

  59   V5.1  ‐  March   2010     Notes: 1. In Autoscale mode the meter can automatically set the Trigger mode (Edge, Video, and Alternate) and Type (Edge, Video) 2. In Autoscale mode the meter switches to YT Mode (Auto) from XY mode (STOP) 3. In Autoscale, the meter defaults to DC coupling and AUTO ...

  60   V5.1  ‐  March   2010     C URSOR  M EASUREMENTS   Two cursors can be used to make instantaneous Time and Voltage measurements for CH1 and CH2 signals. Refer to the following table for more information. Function menu Settings Description Type OFF Voltage Time Exit the cursor measurement mode ...

  61   V5.1  ‐  March   2010     Figure 36-a: Use the Cursor for a Voltage Measurement When the MENU button is pressed, the data table appears as shown in Figure 36-b: Figure 36-b: Data Table To use the cursor for a Time measurement on CH1, perform the following steps: 1. Press the MENU key; the fun...

  62   V5.1  ‐  March   2010     5. Press OPTION and the display will show: —Cursor 2 —Cursor 1 Press ▲ (yellow) or ▼ (yellow) to move T1 left and right; the value of T1 (relative to the middle of the screen) will display. Press ◄ (yellow) or ► (yellow) to move T2 left and right; the value of T2(rel...

  63   V5.1  ‐  March   2010     S IX  (6)   D IGIT  F REQUENCY  C OUNTER  (C YMOMETER )   MS460  ONLY   The frequency counter measurement range is 2Hz~60MHz. When the meter is configured for edge triggering, it can only measure one channel (the channel that is triggering). When the triggering mode ...

  64   V5.1  ‐  March   2010     S QUARE WAVE OUTPUT TEST SIGNAL  (5V,   1   KH Z )  The 5V Square Output is available on the jack at the left side of the meter. The 5V digital output has a frequency of 1 KHz and can be used to adjust the probe, as shown as Fig.39 Fig 39: Square-wave test signal Fig...

  65   V5.1  ‐  March   2010     U SING  FFT   (F AST  F OURIER  T RANSFORM )   (MS420  ONLY )  FFT breaks down signals into component frequencies, which the oscilloscope uses to display a graph of the frequency domain of a signal (as opposed to the oscilloscope’s standard time domain graph). These ...

  69   V5.1  ‐  March   2010     Figure 41 Selecting an FFT Window ■ The FFT feature provides four (4) windows. Each is a trade-off between frequency resolution and magnitude accuracy. What is measured and what the source signal characteristics are help determine which window to use. Use the followi...

  70   V5.1  ‐  March   2010     Hamming This is a good window for resolving frequencies that are very close to the same value with somewhat improved amplitude accuracy over the rectangle window. It has a slightly better frequency resolution than the Hanning selection. Use Hamming for measuring sine...

  71   V5.1  ‐  March   2010     Fig 42 - Rectangle window Fig 43 - Blackman window Fig.44 - Hanning window

  72   V5.1  ‐  March   2010     Fig.45 - Hamming window Quick Tips „ If desired, use the zoom feature to magnify the FFT waveform. „ Use the default dBV RMS scale to see a detailed view of multiple frequencies, even if their amplitudes vary greatly. Use the linear RMS scale to see an overall view o...

  73   V5.1  ‐  March   2010     3) XY Formatting in the DISPLAY SET mode 4) “SET 50%” (trigger level at the vertical point of the signal amplitude) in the Trigger setting mode 5) Autoscale 6) Wave recording 7) Measure 1 and Measure 2

  74   V5.1  ‐  March   2010     S YSTEM  S TATUS  M ENU    The system status menu is used to display configuration information concerning horizontal, vertical, trigger, and other systems. Follow the steps below to check status: 1. Press the MENU key; the function menu will then appear at the right ...

  75   V5.1  ‐  March   2010     M AIN  T IME  B ASE  M ODE    The time base mode menu is explained as the following table. Function menu Setting Explanation Main Time Base Horizontal main time base Zone Window Use the two cursors to define a zoom window area Window Full-screen display To zoom in on...

  76   V5.1  ‐  March   2010     Figure 48: Window Zoom PC   D ATA  T RANSMISSION   For PC data transmission, perform the following steps: 1. Press MENU ; the function menu will then appear on the right side of the screen 2. Press MENU ▲ or MENU ▼ to select the display setting mode DISP SET ; the di...

  79   V5.1  ‐  March   2010     U SING THE M ULTIMETER A BOUT THIS  C HAPTER   This chapter provides step-by-step instructions for using the Multimeter functions. These instructions also provide basic examples of menus and other basic operations. M AKING  M ETER  C ONNECTIONS   Use the four 4-mm sa...

  81   V5.1  ‐  March   2010     M AKING  M ULTIMETER  M EASUREMENTS   Press the DMM/OSC key; the oscilloscope will switch to the multimeter mode. The meter will prompt the user to correctly insert the test leads. Use the A, V, and R keys to select the desired multimeter function. M EASURING R ESIST...

  82   V5.1  ‐  March   2010     5. Reverse the test lead polarity and perform the test again Refer to the example display screen in Figure 3.

  84   V5.1  ‐  March   2010     Figure 4: Continuity Test

  85   V5.1  ‐  March   2010     M EASURING C APACITANCE To measure Capacitance, refer to the following: 1. Insert the black lead into the COM jack, and the red lead into the V/ Ω /C jack 2. Press the R key. An ‘ R ’ appears at the top of the screen 3. Press the SET key until the C appears at the to...

  90   V5.1  ‐  March   2010     Figure 10: 400mA AC Current Measurement

  91   V5.1  ‐  March   2010     To measure AC current larger than 400 mA, perform the following: 5. Press the A key and use the SET key to select the ACA mode ( ACA symbol will appear at the top of the screen when selected) 6. Press the F5 soft-key to select the 10A measurement mode, the unit of me...

  92   V5.1  ‐  March   2010     Figure 12: Freezing the Readings T AKING A R ELATIVE M EASUREMENT The meter can display a reading ‘relative’ to a user-selectable reference value. Refer to the following discussion on how to make a relative measurement. First program a reference value. To do so, take...

  93   V5.1  ‐  March   2010     S ELECTING THE A UTOMATIC / M ANUAL R ANGE M ODES The default mode of the instrument is the automatic range. To switch to the manual range, perform the following steps: 1. Repeatedly press the F1 MANUAL soft-key until the desired range is selected on the meter’s disp...

  95   V5.1  ‐  March   2010     FAQ The oscilloscope does not power up Check that the battery is charged. If the battery is not charged, plug the AC Adaptor charger into an AC source and then into the meter. Charge the battery for at least 15 minutes before using the Oscilloscope. Please contact Ex...

  97   V4.0  ‐  March   2010   A PPENDICES A PPENDIX  A:   S PECIFICATIONS   OSCILLOSCOPE Unless otherwise indicated, all technical specifications are applicable to the 10X probe attenuation switch setting. The oscilloscope should meet the following requirements in order to meet the published specif...

  98   V4.0  ‐  March   2010   ( T) measurement accuracy （ full bandwidth ） Average 16 : ± (1 sampling interval time +100ppm×reading+0.4ns)

  99   V4.0  ‐  March   2010   Vertical Analog digital converter A/D 8 bits resolution (both channels synchronously) Sensitivity range V/div 5mV/div 5V/div(for the BNC connector input Displacement range ± 10 div (MS420), ±2V(5mV/div ~ 200mV/div),  ±50V(500mV/div ~5 V /div) (MS460) Analog bandwidth 6...

  100   V4.0  ‐  March   2010   Trigger sensitivity (Video triggering and typical mode) 2 divisions of peak-to-peak value Signal system and line/field frequency (Video triggering mode) Supports NTSC, PAL and SECAM broadcasting systems of any field or line frequency Measurement Cursor measurements Vo...

  101   V4.0  ‐  March   2010   Probe 1X position 10X position Bandwidth Up to 6 MHz (DC) Up to full bandwidth (DC) Attenuation rate 1: 1 10: 1 Compensation range 20pf 40pf Input resistance 1M Ω ±2 10M Ω ±2 Input impedance 85pf 115pf 14.5pf 17.5pf Input voltage 150 V DC 300 V DC MULTIMETER Voltage (...

  102   V4.0  ‐  March   2010   Range Accuracy Resolution 40.00mA ±1.5% ±1 digit 10uA 400.0mA ±1.5% ±1 digit 100uA 10A ±3% ±3 digit 10mA

  103   V4.0  ‐  March   2010   Alternating Current (AC) Range Accuracy Resolution 40.00mA ±1.5% ±3 digit 10uA 400.0mA ±2% ±1 digit 100uA 10A ±5% ±3digit 10mA Resistance Range Accuracy Resolution 400.0 Ω ±1% ±3 digit 0.1 Ω 4.000K Ω 1 Ω 40.00K Ω 10 Ω 400.0K Ω 100 Ω 4.000M Ω ±1% ±1 digit 1K Ω 40.00M Ω...

  104   V4.0  ‐  March   2010   G ENERAL S PECIFICATIONS Dimensions 7.1 x 4.5 x 1.6” (18 × 11.5 × 4cm) Weight 1.4 lbs. (645 g) Power consumption 6 W Display type 3.7" color liquid crystal display (LCD) Display resolution 640 (horizontal) × 480 (vertical) pixels Display color 65536 colors Power A...

  105   V4.0  ‐  March   2010   A PPENDIX  B:   M AINTENANCE AND  C LEANING   M AINTENANCE Do not store or place this instrument where the liquid crystal display (LCD) may be directly exposed to sunlight for extended periods Warning: Do not allow the instrument to become wet Cleaning Inspect the ins...

  108   V4.0  ‐  March   2010   Product Support Technical Support: [email protected] -- Calibration and Repairs: [email protected] Product specifications subject to change without notice For the latest version of User Guides, Software updates, and other information: www.extech.com (781) 890-7440 Ex...

  109   V4.0  ‐  March   2010   Appui   de   produit   Service d’assistance technique [email protected] ‐ Réparations et retours :[email protected]  Spécifications   produit   sujettes   à   modifications   sans   préavis   Pour obtenir la dernière version de ce manuel d’utilisation, des mises à jo...