B&K Precision 2542B Manual do Utilizador Página 1

Model: 2540B, 2542B, 2540B-GEN, 2542B-GEN Digital Storage Oscilloscopes USER MANUAL

10 2.4 Horizontal Controls ... 55 Horizontal Position Control ...56 Ho

Menu Operation 100 Setup Mask Press UTILITY → Pass/Fail → Setup Mask to display the MASK menu 1/2. Softkey Options Description X Mask Set horizon

Menu Operation 101 Press More 1/2 to display the MASK menu 2/2. Softkey Options Description Internal Storage ---- Store the PASS/FAIL tolerance ma

Menu Operation 102 3.2 MEASURE Menu MEASURE Menu key Press MEASURE menu key to display the MEASURE menu. Softkey Options Description Source CH1

Menu Operation 103 Voltage Measurements Voltage parameter definitions Press MEASURE → Voltage to display the VOLTAGE menu page 1/4. Softkey Options

Menu Operation 104 Press More 1/4 softkey to display the VOLTAGE menu page 2/4. Softkey Options Description High ---- High value is the mode (

Menu Operation 105 Press More 2/4 softkey to display the VOLTAGE menu page 3/4. Softkey Options Description Cycle Avg ---- Cycle Avg value is the

Menu Operation 106 Rising Edge Overshoot 100High-×=AmplitudeMax Falling Edge Overshoot 100Min-×=AmplitudeLow Rising Edge Preshoot 100Min-×=Amplitude

Menu Operation 107 Press More 3/4 softkey to display the VOLTAGE menu page 4/4. Softkey Options Description ---- Return to the MEASURE menu More

Menu Operation 108 Press MEASURE → Time to display the TIME menu page 1/5. Softkey Options Description Frequency ---- Frequency is defined as 1/p

Menu Operation 109 Press More 1/5 softkey to display the TIME menu page 2/5. Softkey Options Description +Width ---- Positive Width is the time be

11 External Storage ... 127 Firmware Update ...

Menu Operation 110 Press More 2/5 softkey to display the TIME menu page 3/5. Softkey Options Description Delay ---- The time between the 50% ampl

Menu Operation 111 Delay definition Press More 3/5 softkey to display the TIME menu page 4/5. Softkey Options Description Phase 1→2 ---- Phase

Menu Operation 112 Phase 1 → 2 =360Period CH1Time 50% CH1 -Time 50% CH2× Phase 2 → 1 =360Period CH2Time 50% CH2 -Time 50% CH1× Phase 1 → 2 definitio

Menu Operation 113 Automatic Measurement Procedure Measure All: Press MEASURE → Measure All to turn on all Auto Measurements. Up to 20 kinds of

Menu Operation 114 Press softkey of voltage or time parameters you want to measure. The selected parameter will be displayed on the bottom of the dis

Menu Operation 115 3.3 ACQUIRE Menu Press the ACQUIRE menu key to show the ACQUIRE menu. ACQUIRE Menu key Press Mode softkey to select Normal mode.

Menu Operation 116 Average mode lets you average multiple triggers to reduce noise and increase resolution. Peak Detect mode should be used to displa

Menu Operation 117 Press Mode softkey to select Average mode. Softkey Options Description Mode Normal Normal acquisition Average Average acquisi

Menu Operation 118 Connect a sine wave signal to the CH1 channel, press ACQUIRE → Mode to select Average mode. Turn the Entry knob to set the num

Menu Operation 119 Record Wavefrom Press ACQUIRE → Record to show the RECORD menu. Softkey Options Description Mode OFF Turn off record function R

12 AM Modulation ...168 FM Modulation ...

Menu Operation 120 Playback Record Press ACQUIRE → Record to show the RECORD menu. Press Mode softkey to select Playback function. Softkey Opt

Menu Operation 121 Press ACQUIRE → Record to show the RECORD menu. Press Mode softkey to select Play Back function. Press More 1/2 softkey to sh

Menu Operation 122 Save/Recall the Record Press ACQUIRE → Record to show the RECORD menu. Press Mode softkey to select Save/Recall function.

Menu Operation 123 Exit Record Function Press Mode softkey to select OFF option and return to the ACQUIRE menu. Softkey Options Description Mode Rec

Menu Operation 124 3.4 SAVE/LOAD Menu SAVE/LOAD MENU key Press SAVE/LOAD key to display the SAVE/LOAD menu. Softkey Options Description Inte

Menu Operation 125 Internal Storage Saving/Loading Trace Press SAVE/LOAD→Internal Storage→Storage type to display the INTERNAL menu and select Tr

Menu Operation 126 Persistence softkey under the DISPLAY menu. See “DISPLAY Menu” for details. Saving/Loading Setups Press SAVE/LOAD→Internal Sto

Menu Operation 127 External Storage Press SAVE/LOAD→External Storage to display the EXTERNAL menu. Softkey Options Description New ---- Create

Menu Operation 128 Press SAVE/LOAD→External Storage→New to display the New menu. Softkey Options Description New File ---- Display the New File me

Menu Operation 129 Save ---- Save the new file ---- Return to New menu Note: Maximum length of a file name is 8 characters. Press Enter Char

13 8.1 System Message ... 216 8.2 General Problems ... 220 9 SPECIFI

Menu Operation 130 Press SAVE/LOAD→External Storage→Rename to display the Rename menu. Softkey Options Description Enter Character ---- Enter the

Menu Operation 131 Firmware Update 1. Press SAVE/LOAD→External Storage to display the EXTERNAL menu. 2. Turn the entry knob to select the correct

Menu Operation 132 3.5 CURSOR Menu You can measure waveform data using cursors. Cursors are horizontal and vertical markers that indicate X-axis val

Menu Operation 133 Manual Mode Voltage Cursor Measurement In the manual mode, you can move the cursors to measure the voltage or time on the select

Menu Operation 134 corner when menu is off ΔY ---- Displays the difference value between Y1 and Y2 cursors Time Cursor Measurement Press CURSO

Menu Operation 135 or on the top right corner when menu is off. ΔX 1/ΔX ---- ΔX is the time difference value between X1 and X2 cursors 1/ΔX is the fr

Menu Operation 136 Press CURSOR→Mode to display the CURSOR menu and select the Track mode. Softkey Options Description Mode Manual Manual cursor

Menu Operation 137 AUTO Mode The Auto mode cursors are displayed only when auto measurement function is enabled. The oscilloscope displays the auto c

Menu Operation 138 3.6 DISPLAY Menu Display Menu key

Menu Operation 139 Press DISPLAY menu key to display the DISPLAY menu page 1/2. Softkey Options Description Type Vector Vector mode fills the

Getting Started 14 1 GETTING STARTED • Introduction • Package Contents • Input Power Requirements • Panel and Screen Display • Quick Check • Pr

Menu Operation 140 Press More 1/2 softkey to display the DISPLAY menu page 2/2. Softkey Options Description Grid Display both grids and axes Tur

Shortcut Menu 141 4 SHORTCUT MENU (2540B/2542B only) • CUSTOM Button • MEASALL Button • RECORD Button • COUNTER/LOCAL Button

Shortcut Menu 142 4.1 Shortcut Controls These four shortcut keys provide alternate quick access to some most frequently used functions or menus

Shortcut Menu 143 Custom Button Menu To enter the custom button menu, press and hold down the Custom key for two seconds or until the custom menu sho

Shortcut Menu 144 Using Custom Button After a shortcut has been assigned and the custom function has been enabled, users may now press the CUSTOM key

Shortcut Menu 145 RECORD Button The RECORD button is a shortcut key that directly enters into the Record sub-menu, allowing users to quickly adjust s

Arbitrary Waveform Generator 147 5 ARBITRARY WAVEFORM GENERATOR (2540B-GEN/2542B-GEN only) • Waveform Generator Controls • Generator Menu • Outpu

Arbitrary Waveform Generator 148 Note: All the contents in this chapter apply to models 2540B-GEN and 2542B-GEN only. 5.1 Waveform Generator Cont

Arbitrary Waveform Generator 149 When the MENU button is pressed, the display will open up the generator menu that allows users to setup all supporte

Getting Started 15 1.1 Introduction The 2540B and 2542B are part of a series of portable digital storage oscilloscopes (DSOs) that offer up to 100 M

Arbitrary Waveform Generator 150 FREQ/CAPTURE Button This button has two functions: - Opens the generator menu and places the cursor on the fr

Arbitrary Waveform Generator 151 Note: The CAPTURE function only works when User ARB is selected as the output type. For all other types, this fun

Arbitrary Waveform Generator 152 ON/OFF Button When ON/OFF button is pressed, the generator output will turn ON and the configured waveform will be o

Arbitrary Waveform Generator 153 Sine Output Press the Output Type softkey to select Sine waveform. SINE menu will be displayed. Softkey Descrip

Arbitrary Waveform Generator 154 Square Output Press the Output Type softkey to select Square waveform, SQUARE menu will be displayed. Softkey Desc

Arbitrary Waveform Generator 155 Pulse Output Press the Output Type softkey to select Pulse waveform, PULSE menu will be displayed. Softkey Desc

Arbitrary Waveform Generator 156 equivalent to the adjusted period from Period selection. Ampl Press Ampl to select and change the amplitude paramet

Arbitrary Waveform Generator 157 right keys below the adjustment knob to change cursor selection (selection will be in red color) and rotate the

Arbitrary Waveform Generator 158 Triangle Up ramp Down ramp Positive pulse Negative pulse Positive double pulse Negative double pulse Positive

Arbitrary Waveform Generator 159 Exponential (EXP) Logarithmic (LOG) Semicircle Tanh Sinc Noise Duty 10% Duty 90% Up step Down step Tri-pul

Getting Started 16 • LAN and USB device connectivity for remote PC control through Comsoft PC software • USB host port for convenient storing and r

Arbitrary Waveform Generator 160 User Programmable Arbitrary Waveform Output Press the Output Type softkey to select User ARB waveform, ARB menu page

Arbitrary Waveform Generator 161 Offset Press Offset to select and change the offset parameter. More 1/2 Select page 2/2 Press More 1/2 softkey t

Arbitrary Waveform Generator 162 Capture/Storage The capture/storage function allows users to store signals applied to the DSOs CH1 or CH2 into

Arbitrary Waveform Generator 163 screen. If the waveform is non-periodic, then the whole screen data is regarded as one period. Internal Storage --

Arbitrary Waveform Generator 164 Source : This is the source of the signal to be captured and stored into the built-in arbitrary waveform memory. Da

Arbitrary Waveform Generator 165 When the screen data is captured with a 200 pixels vertical resolution, it will internally rescale and store the arb

Arbitrary Waveform Generator 166 Although there will be cases in which the original source signal cannot fit exactly at the maximum and minimum ed

Arbitrary Waveform Generator 167 Press Internal Storage softkey to display the INTERNAL menu. Softkey Options Description Storage Pos Volatile F

Arbitrary Waveform Generator 168 AM Modulation Press the MENU key and press the Output Type softkey to select amplitude modulation, AM. Softkey

Arbitrary Waveform Generator 169 Press More 1/2 softkey to display the AM menu page 2/2. Softkey Description Mod Shape Select the modulating wavefo

Getting Started 17 1.3 Input Power Requirements The 2540B, 2542B, 2540B-GEN, and 2542B-GEN DSOs do not require a line fuse when different voltage li

Arbitrary Waveform Generator 170 FM Modulation Press the MENU key and press the Output Type softkey to select frequency modulation, FM. Softkey Op

Arbitrary Waveform Generator 171 Press More 1/2 softkey to display the FM menu page 2/2. Softkey Description Mod Shape Select the modulating wavefo

Arbitrary Waveform Generator 172 Pulse Width Modulation Press MENU key and press the Output Type softkey to select pulse width modulation, PWM.

Arbitrary Waveform Generator 173 Press More 1/2 softkey to display the PWM menu page 2/2. Softkey Description Mod Shape Select the modulating wavef

Arbitrary Waveform Generator 174 DC Offset Modulation (DCOM) This mode sums the carrier waveform with the modulating waveform and outputs the

Arbitrary Waveform Generator 175 Press More 1/2 softkey to display the DCOM menu page 2/2. Softkey Description Mod Shape Select the modulating wave

Arbitrary Waveform Generator 176 Frequency Sweep Press the MENU key and press the Output Type softkey to select SWEEP function, SWEEP. Softkey Op

Arbitrary Waveform Generator 177 Press More 1/2 softkey to display the SWEEP menu page 2/2. Softkey Options Description Sweep Mode Up Sweep fr

Arbitrary Waveform Generator 178 Burst Frequency Press MENU key and press the Output Type softkey to select BURST function, and BURST menu page

Arbitrary Waveform Generator 179 Press More 1/2 softkey to display the BURST menu page 2/2. Softkey Description Cycles Select and specify the bur

Getting Started 18 1.4 Panel and Screen Display Front Panel Display 1 2 4 5 7 8 9 10 12 13 14 15 16 17 18 19 20 21 22 11 6 3 (top) (top) (bott

Arbitrary Waveform Generator 180 FSK and PSK Modulation Press MENU key and press the Output Type softkey to select Keying modulation, KEYING me

Arbitrary Waveform Generator 181 Press More 1/2 softkey to display the KEYING menu page 2/2. Softkey Description Hop Freq/ Hop Phase FSK Modulation

Arbitrary Waveform Generator 182 5.3 Output Terminals GEN OUT Generator BNC output This is the main output of the arbitrary waveform generator. W

Arbitrary Waveform Generator 183 This is the generator’ s modulating waveform output. This terminal also serves as as the external trigger input f

Quick Start Guide 185 6 QUICK START GUIDE • Application Examples - Making Simple Measurements - Capture Single Shot Signal - Reduce Random Noise

Quick Start Guide 186 6.1 Making Simple Measurements This section provides instructions for measuring the amplitude and frequency of an unknown sig

Quick Start Guide 187  Press the Amplitude softkey to measure the Amplitude. The amplitude value will be displayed at the bottom of the screen. 

Quick Start Guide 188 6.2 Capture Single Shot Signal Digital Storage Oscilloscope can easily be used to capture a single-shot or unrepeatable signal

Quick Start Guide 189  Press the SINGLE key to start the acquisition system and search for the trigger condition. The SINGLE key will be illuminat

Getting Started 19 1. Power ON/OFF button (top panel) 2. LCD display screen 3. Carrying handle (top panel) 4. Menu ON/OFF button 5

Quick Start Guide 190 6.3 Reduce Random Noise on a Signal If the test signal is noisy, you can set up the oscilloscope to reduce the noise on the di

Quick Start Guide 191  Press Type softkey to select Edge trigger type.  Press Trigger Setup softkey to display the trigger SETUP menu  Press

Quick Start Guide 192 6.4 Triggering a Video Signal Video trigger can be used to capture the standard video signals. The trigger circuit detects the

Quick Start Guide 193 Trigger on a Specific Line or All Lines of the Video Signal  Press the Trigger MENU key to display the TRIGGER menu.  Pre

Quick Start Guide 194 6.5 PASS/FAIL Measurement The oscilloscope measures and compares the input signal with predefined Pass/Fail thresholds. If the

Quick Start Guide 195  Press More 1/2 softkey to display the PASS/FAIL menu page 2/2.  Press Msg Display softkey to display the Pass/Fail measu

Quick Start Guide 196 6.6 Using Waveform Recorder Waveform recorder lets you record waveforms, playback waveforms, and save waveforms. Perform the f

Quick Start Guide 197 Perform the following steps to playback the waveforms.  Press the ACQUIRE key to display the ACQUIRE menu.  Press the RECO

Quick Start Guide 198  Press Interval softkey and turn the entry knob to set the interval time.  Press the More 2/2 softkey to display the RECO

Quick Start Guide 199 Perform the following steps to save the waveform recorded.  Press the ACQUIRE key to display the ACQUIRE menu.  Press the R

2

Getting Started 20 11. TRIGGER controls 12. (for models 2540B/2542B) Shortcut buttons & Local key (Alternate function of COUNTER button; used to

Quick Start Guide 200 6.7 Making Cursor Measurements You can use the cursors to quickly make time and voltage measurements on a waveform. You can us

Quick Start Guide 201 Perform the following steps to take voltage measurement.  Press the CURSOR key to display the CURSOR menu.  Press Mode soft

Quick Start Guide 202 Measure the frequency and amplitude on FFT waveform Perform the following steps to take frequency measurement.  Press the MAT

Quick Start Guide 203  Press Source softkey to select FFT.  Press Type softkey to select the Voltage type.  Press Y1--/ Y2—softkey or press th

Quick Start Guide 204 Measure the phase difference between two signals of the same frequency under X-Y display mode.  Connect a sine wave signal to

Quick Start Guide 205  Press Y1--/ Y2—softkey or press the entry knob to select Y1 cursor.  Rotate the entry knob to move the Y1 cursor to the

Quick Start Guide 206 6.8 Output Basic Sine Waveform This application example describes how to use the generator to output a sine waveform with 10

Quick Start Guide 207 6.9 Output Amplitude Modulated Waveform This application example describes how to use the generator to output an amplitude mo

Quick Start Guide 208 Perform the following steps to output the amplitude modulated waveform.  Connect the WG Output teminal to CH1 terminal.  Pr

Quick Start Guide 209  Press Mod Shape softkey and select Sine as the modulating waveform shape.  Press Mod Freq softkey to select and speci

Getting Started 21 Back Panel Display 1. Security loops 2. Carrying handle 3. Power ON/OFF button 4. AC line input (side panel) 5. Pass/Fail ou

Quick Start Guide 210 6.10 Create Waveform with Added Noise This section will demonstrate a quick way to create a sine wave with added random noise.

Quick Start Guide 211 6.11 Capture and Output Math Waveform This section will demonstrate an example of capturing a Math waveform output that is i

Quick Start Guide 212 2. Press the MENU key and select Output Type to be User ARB. 3. Then, select More 1/2 softkey and select Capture/Storage soft

Remote Control 213 7 REMOTE CONTROL • Comsoft Software • Web Browser GUI (Graphic user Interface)

Remote Control 214 7.1 Comsoft Software The 2540B and 2542B comes with Comsoft application software which provides most of the controls of the oscil

Troubleshooting Guide 215 8 TROUBLESHOOTING GUIDE • System Messages • General Problems

Troubleshooting Guide 216 8.1 System Message Function is not available: The control knob, key, or softkey is not available under a specific operat

Troubleshooting Guide 217 Empty storage memory: This message will be displayed when you try to load a file which does not exist from the internal me

Troubleshooting Guide 218 Load finished: This message will be displayed when a file has been successfully loaded from the internal or external memo

Troubleshooting Guide 219 No help file: This message will be displayed when no help file is loaded or the loaded help file is corrupted. Digital fil

Getting Started 22 LCD Main Screen Display The oscilloscope display contains channel acquisitions, setup information, measurement results, and soft

Troubleshooting Guide 220 8.2 General Problems If there is no display on the screen: • Check that the power cord is connected to the oscillosco

Troubleshooting Guide 221 If the amplitude is not identical with the actual voltage • Check that the attenuation factor of the probe is identical w

Specifications 223 9 SPECIFICATIONS • Digital Storage Oscilloscope Specifications • Arbitrary Waveform Generator Specifications • General Speci

Specifications 224 9.1 Digital Storage Oscilloscope Specifications All specifications are typical performance values and are not warranted. Specifi

Specifications 225 Attenuation factor X1, X10, X100, X1000 Channel common mode rejection 100:1 at 60 Hz 20:1 at 10 MHz[1] Lower frequency limit, AC

Specifications 226 Measurements Voltage measurement Max, Min, VPP, High, Low, Amplitude, Average, RMS, Overshoot, Preshoot, Cycle average, Cycle RMS

Specifications 227 Trigger system Source CH1, CH2, EXT, EXT/5, AC Line, Alternating Modes Auto, Normal, Single Coupling DC, AC, LF-Reject, HF-Reje

Specifications 228 Storage and I/O Internal memory 10 setups and trace files can be saved and recalled internally. External storage file format Setup

Specifications 229 Acquisition system Max real time sample rate 1 GSa/s Max equivalent sample rate 50 GSa/s Max memory depth (Based on Sample rate) 1

Getting Started 23 3. The square brackets show the location of current display window within the whole captured waveform. The captured waveform

Specifications 230 Display system Display 5.7-inch TFT LCD display. Resolution 234 vertical by 320 horizontal pixels Colour 24 bit true color Brig

Specifications 231 9.2 Arbitrary Waveform Generator Specifications Note: The specifications in this section apply to models 2540B-GEN and 2542B-GE

Specifications 232 distortion Rise / Fall time (square) < 20 ns Pulse Characteristics Duty Cycle 0.01 % to 99.99 % Width 10 ns to 999.99 s Arbit

Specifications 233 Amplitude stability ± 2% in 4 hours Amplitude flatness When freq. ≤ 5 MHz: ± 5% When freq. > 5 MHz: ± 10% Amplitude flatness

Specifications 234 Semicircle, Tanh, Sinc, Noise, Duty 10%, Duty 90%, Up Step, Down Step, Tri-pulse, Trapezoidal, Cosine, SCR AM modulation depth 0

Specifications 235 Frequency Sweep Characteristics Waveforms Sine, Square Sweep mode Up, Down, Up-Down Sweep time 1 ms to 500 s Burst Character

Specifications 236 9.3 General Specifications Power and environmental requirements Line voltage Range 99 V to 242 VAC Line frequency 47 Hz to 440

Specifications 237 9.4 Certification CE Compliant CE Declaration of Conformity The oscilloscope meets the requirements of 2006/95/EC Low Voltage Dir

Performance Verification Procedure 238 Appendix A: Performance Verification Procedure • DC Gain Accuracy • Bandwidth • Trigger Sensitivity • Time

Performance Verification Procedure 239 The only parameter that can be user calibrated is the DC gain accuracy. If any of the other parameters, ban

Getting Started 24 10. Horizontal readout shows the Main or Delayed time base. 11. Channel readouts show the scale factor, coupling, bandwidth lim

Performance Verification Procedure 240 8. Connect calibrator to oscilloscope. If preferred calibrator is not available, connect alternative equipmen

Performance Verification Procedure 241 Bandwidth Equipment needed: Fluke calibrator (preferred) or signal generator 1. Connect your calibrator’s o

Performance Verification Procedure 242 Trigger Sensitivity Equipment needed: Fluke calibrator (preferred) or signal generator 1. Connect your cali

Performance Verification Procedure 243 Time Scale Accuracy Equipment needed: Fluke calibrator (preferred) or signal generator 1. Connect your cali

Disabling Auto Function 244 Appendix B: Disabling Auto Function The oscilloscope has the ability to disable the Auto button that would automatically

Index 245 AC coupling, 37 Acquisition status, 23 attenuation, 28 Autoset, 33 Band block filter, 42 bandwidth limit, 39 Cursors, 132 DC coupling, 38 D

SERVICE INFORMATION Warranty Service: Please go the support and service section on our website www.bkprecision.com to obtain a RMA #. Return the pr

LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be f

Getting Started 25 Basic Check Please follow the steps below when checking the oscilloscope’s functionality. 1. Power on the oscilloscope. Press SAV

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Getting Started 26 3. Press AUTO to show the 1 kHz frequency square wave in a few seconds. 4. Press CH1 two times to cancel the channel 1, Press

Getting Started 27 1.6 Probe Safety A guard around the probe body provides a finger barrier for protection from electric shock. Connect the probe t

Getting Started 28 1.7 Probe Attenuation Probes are available with various attenuation factors which affect the vertical scale of the signal. You ca

Getting Started 29 probe for the first time to any input channel. A poorly compensated probe can introduce measurement errors. 1. Set both the probe

3 Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of operati

Basic Operation 31 2 BASIC OPERATION • Using Quick Help • Using Autoset • Vertical Controls • Horizontal Controls • Trigger Controls • RUN Con

Basic Operation 32 2.1 Using Quick Help The digital storage oscilloscope has a quick help system that provides a description of functionality for e

Basic Operation 33 If there are more than one page of help information, press the key to browse the previous or next pages. 2.2 Using Autose

Basic Operation 34 various parameters. If signal is found, it will beep once and open the AUTO menu before displaying the signal. If there are n

Basic Operation 35 Note: Auto set function can be disabled. See “Appendix B: Disabling Auto Function” for details 2.3 Vertical Controls Vertical

Basic Operation 36 Press the vertical position knob to bring the channel’s waveform and its ground level icon ( ) directly back to the vertical c

Basic Operation 37 coarse is selected, the vertical scale knob changes the channel scale in a 1-2-5 step sequence. Channel Keys CH1, CH2 Press the ch

Basic Operation 38 AC Coupling Press the channel key CH2, then press the Coupling softkey again to select DC coupling mode. DC coupling passes bot

Basic Operation 39 Press the channel key CH2, then press the Coupling softkey until GND coupling is selected. GND mode blocks both AC and DC componen

4 KEEP AWAY FROM LIVE CIRCUITS Instrument covers must not be removed by operating personnel. Component replacement and internal adjustments must be

Basic Operation 40 BW Limit off When it is on, the maximum bandwidth for the channel is approximately 20 MHz. For waveforms with frequencies below

Basic Operation 41 Probe Attenuation Setting Probes are available with various attenuation factors which affect the vertical scale of the signal. You

Basic Operation 42 Digital Filter Each channel has built-in digital filters that can be applied to the connected signal. Press the channel key CH1, t

Basic Operation 43 Digital Filter is on Vertical Scale Turn the large vertical scale knob below the channel key to set the scale factor for the chan

Basic Operation 44 Fine Vertical Scale Vertical Invert Press CH2→ More 1/2 → Invert to set Invert on or off. When Invert is turned on, the voltage

Basic Operation 45 Vertical Invert off Vertical Invert on

Basic Operation 46 MATH Functions Dual Waveform Calculation Press MATH channel key to turn on the MATH menu, page ½. Softkey Options Descripti

Basic Operation 47 Press softkey More 1/2 to display MATH menu page 2/2. Softkey Options Description Operate A+B Add A and B A-B Subtract B

Basic Operation 48 Example: Select the A+B math function, then select CH1 as the Source A, and select CH2 as the Source B. The resulting math wave

Basic Operation 49 FFT Spectrum Analysis You can use the FFT function to measure harmonic components and distortion in systems, to characterize nois

5 A CAUTION statement calls attention to an operating procedure, practice, or condition, which, if not followed correctly, could result in damage to

Basic Operation 50 Press softkey More 1/2 to display FFT menu page 2/2. Softkey Options Description Operate A+B Add A and B A-B Subtract B f

Basic Operation 51 Example: Select CH1 as the Source for FFT, select Rectangular Window, set Scale to dBV RMS, and then the FFT waveform will look

Basic Operation 52 REF Function The REF function allows users to store and recall a waveform as a reference. This is useful for comparing and analyz

Basic Operation 53 Press softkey More 1/2 to display REF menu, page 2/2. Press REF channel key to turn on the REF menu page 1/2, press softkey More 1

Basic Operation 54 Press or softkey and turn the Entry knob to change the vertical scale or position of the reference waveform. Press REF→

Basic Operation 55 2.4 Horizontal Controls Use the horizontal controls to adjust the time base, adjust the trigger location, and to examine waveform

Basic Operation 56 Horizontal Position Control When the oscilloscope is running, this control lets you set the acquisition window relative to the tri

Basic Operation 57 Press the horizontal scale control knob to toggle between Main and Delayed horizontal display mode. Horizontal MENU key Press the

Basic Operation 58 Press softkey More 1/2 to display the HORIZONTAL menu page 2/2. Main - Horizontal Mode Main horizontal mode is the normal viewing

Basic Operation 59 Main Horizontal Mode 1. Readout shows the delay time or the trigger location within the record data relative to the time referen

6 Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with sep

Basic Operation 60 Delayed - Horizontal Mode Delayed horizontal mode is an expanded version of main mode. When Delayed mode is selected, the display

Basic Operation 61 control knob key to toggle between Main and Delayed mode directly. Delayed Horizontal Mode

Basic Operation 62 X-Y Horizontal Mode X-Y mode changes the display from a volts-versus-time display to a volts-versus-volts display. The time base

Basic Operation 63 Roll - Horizontal Mode Roll mode causes the waveform to move slowly across the screen from right to left. Note: It only opera

Basic Operation 64 Roll Horizontal Mode

Basic Operation 65 2.5 Trigger Controls The trigger controls determine when the oscilloscope starts to acquire and display the waveform. When a trig

Basic Operation 66 Trigger Control MENU key Press the trigger control MENU key to show the TRIGGER menu and then press the Type softkey to select Edg

Basic Operation 67 After the line disappears, the trigger level is marked with a small left arrow. Auto and Normal Trigger Modes Press the trigger ME

Basic Operation 68 display will flash, indicating that the oscilloscope is force triggered. When you press the SINGLE key, the oscilloscope will fi

Basic Operation 69 Holdoff Function Holdoff sets the amount of time that the oscilloscope will wait before re-initializing the trigger circuit. You

7 Safety Symbols Chassis (or earth) ground symbol. This symbol on an instrument indicates caution. For details, the user should refer to the op

Basic Operation 70 Edge Trigger Use the Edge triggering to trigger on the rising or falling edge of the input signal at the trigger threshold. Press

Basic Operation 71 Note: (For models 2540B-GEN and 2542B-GEN only) When Source is set to EXT or EXT/5, the EXT TRG/MOD OUT BNC terminal will fun

Basic Operation 72 Pulse Mode Positive greater than Positive equal Positive within Positive less than Negative greater than Negative equal Ne

Basic Operation 73 Softkey Options Description Type Video Video triggering Edge Edge triggering Pulse Pulse width triggering Mode Auto Trigger

Basic Operation 74 Video Trigger Choose video triggering to trigger on the odd fields, even fields, or on all the lines of a NTSC or PAL/SECAM video

Basic Operation 75 Press softkey More 1/2 to display the TRIGGER menu page 2/2. Note: (For models 2540B-GEN and 2542B-GEN only) When Source is

Basic Operation 76 Press softkey Trigger Setup from the TRIGGER menu page 2/2 to display the trigger SETUP menu. Note: There will be no coupling men

Basic Operation 77 The following figures show the video waveforms triggered on odd fields and on a specific line 6. Trigger on odd fields Trigger o

Basic Operation 78 2.6 RUN Controls Run controls Press the SINGLE key to execute a single-shot acquisition. The key will illuminate in orange unt

Menu Operation 79 3 MENU OPERATION • UTILITY Menu • MEASURE Menu • ACQUIRE Menu • SAVE/LOAD Menu • CURSOR Menu • DISPLAY Menu

8 CAT I (400V) IEC Measurement Category I. Inputs may be connected to mains (up to 400 VAC) under Category I overvoltage conditions. Environmental C

Menu Operation 80 3.1 UTILITY Menu Press the UTILITY menu key to show the UTILITY menu. UTILITY Menu key

Menu Operation 81 Press the UTILITY key to display the UTILITY menu page 1/2. Softkey Options Description I/O Setup ---- Select I/O SETUP menu Pr

Menu Operation 82 Press the More 1/2 softkey to display the UTILITY menu page 2/2. Softkey Options Description Service ---- Select Service menu

Menu Operation 83 Press UTILITY → Self-Cal to display the self-calibration page. Press AUTO key to exit the Self-Calibration, or press RUN key to

Menu Operation 84 Fast-Calibration Fast calibration is ideally used to calibrate the instrument to remedy the effects of temperature drift causing an

Menu Operation 85 Press Network Settings softkey to display the LAN menu. Softkey Options Description DHCP ON IP address together with subnet mask

Menu Operation 86 Follow the following steps to manually configure the LAN interface:  Set the IP Address. Contact your network administrator fo

Menu Operation 87 networks. Move the cursor to the Gateway IP position and enter the gateway address in the IP address format using the entry knob. 

Menu Operation 88 Print Setup Press UTILITY → Print Setup to display the PRINT menu. Softkey Options Description Print to File Print to file File

Menu Operation 89 2. Press File Type softkey to select the file format you want. 3. Press the PRINT key to save the file to the USB drive. If BMP

9 Table of Contents 1 GETTING STARTED ... 14 1.1 Introduction ...

Menu Operation 90 CSV – Stores the waveform data captured on the frame of the screen into CSV file format. Depending on the timebase, the maximum

Menu Operation 91 Inverted System Setup Press UTILITY → System Setup to display the SYSTEM menu page 1/2. Softkey Options Description Key

Menu Operation 92 Frequency Counter Select the Counter softkey to toggle between enabling and disabling frequency counter shown on screen. Press th

Menu Operation 93 Key Lock Press UTILITY → System Setup → Key Lock to lock the front panel operation, all the keys and controls. When key lock i

Menu Operation 94 Password Protection Press Password softkey from the SYSTEM menu 2/2 to turn off the Password protection function, correct password

Menu Operation 95 Change Password Press Change Password softkey from the SYSTEM menu page 2/2 to display the CHANGE menu. The old password is requir

Menu Operation 96 Service Press UTILITY → Service to display the Service menu. Softkey Options Description System Information ---- Display syste

Menu Operation 97 System Information Press UTILITY → Service to display the Service menu, and then press the System Info softkey to display the syst

Menu Operation 98 Pass/Fail The oscilloscope first measures the input source signal and compares it with Pass/Fail settings, and then outputs the

Menu Operation 99 Press More 1/2 to display the PASS/FAIL menu 2/2. Softkey Options Description Msg Display ON Pass/Fail count message on OFF Pass