Fluke fluke123 manuale d’uso

4822 872 00743 January 1997, Rev. 4, 7/99 © 1997, 1999 Fluke Corporation. All rights reserved. Printed in the Netherlands. All product names are trademarks of their respective companies. ® Fluke 123 Industrial ScopeMeter Users Manual[...]

LIMITED WARRA NTY & LIMITA TION OF LIA BILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is three years and b e- gins on the date of shipment. Parts, product repairs and services are warranted for 90 days. This warranty extends only to the original buyer [...]

SERVICE CENTERS To locate an authorized service center, visit us on the World Wide Web: http://www.fluke.com or call Fluke using any of the phone numbers listed below: +1-888-993-5853 in U.S.A. and Canada +31-402-678-200 in Europe +1-425-356-5500 from other countries[...]

i Table of Contents Chapter Title Page Declaration of Conformity .............................................................................................. 1 Unpacking the Test Tool Kit .......................................................................................... 2 Safely Using the Test Tool ........................................[...]

Fluke 123 Users Manual ii Displaying an Unknown Signal with Connect-and-View™ ............................................. 13 Making Measurements ................................................................................................... 14 Freezing the Screen ..............................................................................[...]

Contents (continued) iii Triggering on a Specific Video Line .......................................................................... 31 Saving and Recalling a Setup or a Screen .................................................................... 32 Saving Screens ...................................................................................[...]

Fluke 123 Users Manual iv Setting the Grid Display ............................................................................................. 49 Changing Date and Time ............................................................................................... 50 Saving Battery Life ............................................................[...]

Declaration of Conformity 1 Declaration of Conformity for Fluke 123 ScopeMeter ® test tool Manufacturer Fluke Industrial B.V. Lelyweg 1 7602 EA Almelo The Netherlands Statement of Conformity Based on test results using appropriate standards, the product is in conformity with Electromagnetic Compatibility Directive 89/336/EEC Low Voltage Directive [...]

Fluke 123 Users Manual 2 Unpacking the Test Tool Kit The following items are included in your test tool kit. (see Figure 1.): Note When new, the rechargeable Ni-Cd battery pack is not fully charged. See Chapter 2. # Description Model 123 123/SCC 1 Industrial ScopeMeter Test Tool ll 2 Ni-Cd Battery Pack (installed) ll 3 Power Adapter/Battery Charger[...]

Unpacking the Test Tool Kit 3 Figure 1. ScopeMeter Test Tool Kit[...]

Fluke 123 Users Manual 4 Safely Using the Test Tool Attention Carefully read the following safety information before using the test tool. Safety Precautions Specific warning and caution statements, where they apply, will be found throughout the manual. A Caution identifies conditions and actions that may damage the test tool. A Warning identifies c[...]

Safely Using the Test Tool 5 Warning Do the following to avoid electrical shock or fire if a test tool common input is connected to more than 42V peak (30V rms): • Use only test leads and test lead adapters supplied with the test tool. (or equivalents as specified in the accessory list, see Chapter 2.) • Do not use conventional exposed metal ba[...]

Fluke 123 Users Manual 6 If Safety-Precautions are Impaired Use of the test tool in a manner not specified may impair the protection provided by the equipment. Before use, inspect the test leads for mechanical damage and replace damaged test leads! Whenever it is likely that safety has been impaired, the test tool must be turned off and disconnecte[...]

7 Chapter 1 Using The Test Tool Goal of this Chapter This Chapter provides a step-by-step introduction to the test tool. The introduction does not cover all of the capabilities of the test tool but gives basic examples to show how to use the menus perform basic operations. Powering the Test Tool Follow the procedure (step 1 to 3) in Figure 1-1 to p[...]

Fluke 123 Users Manual 8 Resetting the Test Tool If you want to restore the tes t tool s ettings as deliv ered from the factory, do the following:  Turn the test tool off. ô Press and hold. í Press and releas e. The test tool turns on, and you should hear a double beep, indicating the Reset was successful. ÷ Release. Now look at the display; [...]

Using The Test Tool Changing Backlight 1 9 Changing Backlight After power-up, the screen has a high bright display . To save battery power, the screen has an economic brightness display when operated on the battery pack (no power adapter connected). To change the brightness of the display , do the following:  Dim the bac k light. ô Brighten the[...]

Fluke 123 Users Manual 10 Reading the Screen The screen is divided into three areas: Reading area, Waveform area, and Menu area. Refer to Figure 1-3 during the following. Reading area (A) : Displays the numeric readings. Because only input A is on, you will see the input A readings only. Waveform area (B) : Displays the input A waveform. The bottom[...]

Using The Test Tool Making Selections in a Menu 1 11 Making Selections in a Menu Subsequently follow steps  to ÷ to open a menu and to choose an item.  Press the SCOPE MENU key to open the Scope menu. Note Pressing the SCOPE MENU key a second time closes this menu and resumes normal measurement. This toggling enables you to check the menu wi[...]

Fluke 123 Users Manual 12 Looking at the Measurement Connections Look at the top of the test tool. The test tool provides two 4-mm safety shielded banana jack inputs (red input A and gray input B) and a safety 4-mm banana jack input (COM). (See Figure 1-5.) Input A You can always use the red input A for all single input measurements possible with t[...]

Using The Test Tool Displaying an Unknown Signal with Connect-and View™ 1 13 Displaying an Unknown Signal with Connect-and View™ The Connect-and-View™ function enables hands-off operation to display complex unknown signals. This function optimizes the position, range, time base, and triggering and assures a stable display on nearly all wavefo[...]

Fluke 123 Users Manual 14 Making Measurements The reading area displays the numeric readings of the chosen measurements on the waveform that is applied to the input jack. • First connect the red shielded test lead from input A, and the gray shielded test lead from input B to the signals to be measured. Connect the short ground leads to the same g[...]

Using The Test Tool Making Measurements 1 15 To choose also a Peak-to-Peak measurement for Input B , do the following:  Open the INPUT B menu. ô Highlight ON. í Turn Input B on. Observe that the highlight jumps to the present main measurement. ÷ Highlight PEAK... û Open the PEAK submenu. ø Highlight PEAK-PEAK. ù Accept the pk-pk measuremen[...]

Fluke 123 Users Manual 16 Freezing the Screen You can freeze the screen (all readings and waveforms) at any time.  Freeze the screen. HOLD appears at the bottom of the reading area. ô Resume your measurement. Holding a Stable Reading The Touch Hold ® function captures and freezes the next stable measurement result. A beep indicates that a stab[...]

Using The Test Tool Making Relative Measurements 1 17 Making Relative Measurements Zero Reference displays the present measurement result with respect to the defined value. This feature is useful when you need to monitor the measured value in relation to a known good value.  Open the INPUT A menu. ô Open the METER A OPTIONS submenu. í (2x) Jum[...]

Fluke 123 Users Manual 18 Selecting Auto/Manual Ranges Press to automatically adjust the position, range, time base, and triggering. This assures a stable display on nearly all waveforms. The bottom line shows the range, the time base for both inputs, and the trigger information. Press a second time to select the manual range. MANUAL appears at the[...]

Using The Test Tool Changing the Graphic Representation on the Screen 1 19 Positioning the Waveform on the Screen Considerable flexibility is offered in moving the waveform(s) around the screen.  Press until you have left any open menu. Observe that the following main menu appears on bottom of the screen. ô Choose A MOVE. í Position the wavefo[...]

Fluke 123 Users Manual 20 Smoothing the Waveform To smooth the waveform, do the following:  Open the SCOPE INPUTS menu. ô Open the SCOPE OPTIONS submenu. í Jump to WAVEFORM MODE. ÷ Highlight SMOOTH. û Accept waveform smooth. You can use waveform smooth to suppress noise without loss of bandwidth. Waveform samples with and without smoothing a[...]

Using The Test Tool Changing the Graphic Representation on the Screen 1 21 Displaying the Envelope of a Waveform The test tool records the envelope (minimum and maximum) of the live waveforms A and B. Repeat the first three actions of ‘Smoothing the Waveform’, and then do the following: ÷ Highlight ENVELOPE. û Start monitoring the envelope of[...]

Fluke 123 Users Manual 22 TrendPlotting a Waveform The TrendPlot™ function plots the digital readings as a function of time. Date and time stamp shows the time of the most recent change in a MIN or MAX reading. Starting a TrendPlot™ function  Open the INPUT A menu. ô Start TRENDPLOT. The test tool records the minimum (MIN) reading as the ma[...]

Using The Test Tool Acquiring the Waveform 1 23 Changing the TrendPlot Reading To toggle the TrendPlot reading between MIN (minimum), MAX (maximum), and AVERAGE, do the following: í Change MIN into MAX reading. ÷ Change MAX into AVG reading. Note that the date and time stamp now updates continuously to indicate the most recent change in a reading[...]

Fluke 123 Users Manual 24 û Wait appears on bottom of the screen to indicate that the test tool is waiting for a trigger. ø Run appears on bottom of the screen when the single acquisition is triggered. ù Hold appears on bottom of the screen when the single acquisition has been completed. The test tool will now have a screen like Figure 1-14. To [...]

Using The Test Tool Acquiring the Waveform 1 25 Recording Slow Signals over a Long Period of Time The roll mode function supplies a visual log of waveform activity and is especially useful when you measure lower frequency waveforms.  Open the SCOPE INPUTS menu. ô Open the SCOPE OPTIONS submenu. í Highlight ROLL MODE. ÷ (2x) Start Recording. T[...]

Fluke 123 Users Manual 26 Selecting AC-Coupling Use AC-coupling when you wish to observe a small AC signal that rides on a DC signal.  Open the SCOPE INPUTS menu. ô Highlight AC. í (4x) Accept AC-coupling for INPUT A. Reversing the Polarity of the Displayed Waveform To invert the input A waveform, do the following:  Open the SCOPE INPUTS me[...]

Using The Test Tool Triggering on a Waveform 1 27 Triggering on a Waveform Triggering tells the test tool when to begin displaying the waveform. You can select which input signal should be used, on which edge this should occur, and you can define the condition for a new update of the waveform. Finally you can tell the test tool to trigger on video [...]

Fluke 123 Users Manual 28 Selecting the Trigger Parameters To trigger on the input A waveform, with automatic screen update, and to configure the auto range triggering for waveforms from 1 Hz, do the following:  Open the SCOPE INPUTS menu. ô Open the TRIGGER submenu. í Highlight Input ‘A’. ÷ Select Input ‘A’. û Highlight FREE RUN. ø[...]

Using The Test Tool Triggering on a Waveform 1 29 Isolated Triggering Use the optically isolated trigger probe (ITP120 , optional) to trigger on an external source, and to isolate the test tool from a trigger waveform. See Figure 1-17. To choose the isolated trigger probe, select ‘EXT’ in point ÷ of the previous example. Trigger level is fixed[...]

Fluke 123 Users Manual 30 ü Highlight POSITIVE. ê Accept the video trigger selections . Trigger level and slope are now fixed. (See Figure 1-18.) Positive video is indicated as a “ + ” icon on bottom of the screen. Figure 1-18. Measuring Video Signals[...]

Using The Test Tool Triggering on a Waveform 1 31 Triggering on a Specific Video Line To view a specific video line in more detail you can select the line number. To measure on a selected video line, continue from point ø of the previous example as follows: ù Highlight SELECT î Select SELECT ü Highlight POSITIVE. ê Accept the video trigger sel[...]

Fluke 123 Users Manual 32 Saving and Recalling a Setup or a Screen You can save Screens and Setups to memory, and recall them again from memory. Two Screen memories and ten Setup memories are available. Save Screens when you want to use the present screen image for future reference. Save a Setup when you need the present operating configuration mor[...]

Using The Test Tool Saving and Recalling a Setup or a Screen 1 33 í Open the RECALL SCREEN submenu. Already filled memory locations are indicated with a closed square ( n ). ÷ Highlight SCREEN 2. û View the saved screen. The image is presented as a picture that can no longer be changed. Deleting Screens To delete all screen memories, do the foll[...]

Fluke 123 Users Manual 34 Using a Printer To print a (graphic) hard copy of the present screen, you need to use one of the following: l The Optically Isolated RS-232 Adapter/Cable (PM9080) to connect a serial printer to the OPTICAL PORT of the test tool. See Figure 1-19. l The Print Adapter Cable (PAC91, optional ) to connect a parallel printer to [...]

Using The Test Tool Using a Printer 1 35 This example covers how to set up the test tool to print on a HP Deskjet printer with a baudrate of 9600 baud:  Open the SAVE&PRINT menu. Observe that the screen is freezed. ô Open the PRINTER SETUP submenu. í Highlight DESKJET. ÷ Select DESKJET. û Highlight 9600. ø Accept the print selections. N[...]

Fluke 123 Users Manual 36 Using FlukeView ® Software To connect the test tool to a computer for using the FlukeView software for Windows ® (SW90W), do the following: l Use the Optically Isolated RS-232 Adapter/Cable (PM9080) to connect a computer to the OPTICAL PORT of the test tool. See Figure 1-21. For all information relating to installing and[...]

37 Chapter 2 Maintaining the Test Tool About this Chapter This chapter covers basic maintenance procedures that can be performed by the user. For complete service, disassembly, repair, and calibration information, see the Service Manual. You will find the part number of the Service Manual in the section ‘Parts and Accessories’ in this manual. C[...]

Fluke 123 Users Manual 38 Charging the Ni-Cd Battery Pack At delivery, the Ni-C d batteries m ay be em pty and m us t be charged for 4 hours (tes t tool is off) to fill them com pletely . When fully charged, the batteries typically provide 4 hours of use at full brightness and 5 hours at normal brightness. When battery powered, the battery indicato[...]

Maintaining the Test Tool Keeping Batteries in Optimal Condition 2 39 Keeping Batteries in Optimal Condition Always operate the tes t tool on batteries until an -icon appears on the bottom line of the screen. This indicates that the battery level is low and that the Ni-Cd batteries need to be recharged. Frequent charging of the batteries when they [...]

Fluke 123 Users Manual 40 Replacing and Disposing of the Ni-Cd Battery Pack Warning To avoid electrical shock, remove the test leads and probes before replacing the battery pack. Note This instrument contains Nickel -Cadmium batteries. Do not dispose of this battery pack with other solid waste. Used batteries should be disposed of by a qualified re[...]

Maintaining the Test Tool Using and Adjusting 10:1 Scope Probes 2 41 7. Install a new battery pack. Note Ensure that the battery pack is placed in the battery compartment as shown in Figure 2-2. Use only the Fluke BP120 Ni-Cd battery pack. 8. Reinstall the battery cover and secure the screw. Using and Adjusting 10:1 Scope Probes You need to adjust [...]

Fluke 123 Users Manual 42  Open the SCOPE INPUTS menu. ô Open the PROBES submenu. í Highlight PROBE AC ADJUST. ÷ Open the PROBE AC ADJUST submenu. û Highlight ADJUST 10:1 PROBE. ø A square wave appears on the screen. ù Adjust the trimmer screw in the probe housing to give an optimum square wave. î Return to normal mode.[...]

Maintaining the Test Tool Calibrating the Test Tool 2 43 Calibrating the Test Tool You can ask for the model identity (version and calibration data) at any time. To display the identity, do the following:  Open the USER OPTIONS menu. ô Open the VERSION&CALIBRATION submenu. The screen gives you information about the model number with softwar[...]

Fluke 123 Users Manual 44 Standard Accessories (cont) Item Ordering Code Ni-Cd Battery Pack (installed) BP120 Power Adapter/Battery Charger , available models: Universal Europe 230V, 50Hz North America 120V, 60Hz United Kingdom 240V, 50Hz Japan 100V, 60Hz Australia 240V, 50Hz Universal 115V/230V * * The 230V rating of the PM8907/808 is not for use [...]

Maintaining the Test Tool Parts and Accessories 2 45 Standard Accessories (cont) Item Ordering Code Users Manual (English) Users Manual (German) Users Manual (French) Users Manual (Spanish) Users Manual (Portuguese) Users Manual (Italian) Users Manual (Dutch) Users Manual (Danish) Users Manual (Norwegian) Users Manual (Swedish) Users Manual (Finnis[...]

Fluke 123 Users Manual 46 Optional Accessories Item Ordering Code Software & Cable Carrying Case Kit Set contains the following parts: Optically Isolated RS-232 Adapter/Cable Hard Carrying Case Set of two Banana-to-BNC Adapters (Black) FlukeView ® ScopeMeter ® Software for Windows ® SCC 120 PM9080 C120 BB120 SW90W Set of 10:1 Scope Probes (R[...]

47 Chapter 3 Tips and Troubleshooting Goal of this Chapter This Chapter gives you information and tips on how you can make the best use of the test tool. Using the Tilt Stand The test tool is equipped with a tilt stand, allowing viewing from an angle. You can also use the tilt stand to hang the test tool at a convenient viewing position. Simply til[...]

Fluke 123 Users Manual 48 Resetting the Test Tool Perform a Master Reset to make sure that your test tool is in the initial settings condition.  Turn the test tool off. ô Press and hold. í Press and release. The test tool turns on, and you should hear a double beep, indicating the Reset was successful. ÷ Release. Changing the Information Lang[...]

Tips and Troubleshooting Changing the Display 3 49 Changing the Display Adjusting the Screen Contrast  From the main menu, choose CONTRAST. ô Adjust the contras t of the s c reen. Note The new contrast adjustment of the screen is saved in memory until a new adjustment is made. Setting the Grid Display To choose a dotted grid, do the follow ing:[...]

Fluke 123 Users Manual 50 Changing Date and Time The test tool has a date and time clock. To change the date to (e.g.) 19 April, 1996, do the following:  Open USER OPTIONS menu. ô Highlight DATE ADJUST. í Open DATE ADJUST submenu. ÷ Choose 1996. û Jump to MONTH. ø Choose 04. ù Jump to DAY. î Choose 19. ü Jump to FORMAT. ê Choose DD/MM/Y[...]

Tips and Troubleshooting Saving Battery Life 3 51 Saving Battery Life When operated on the battery pack (no Power Adapter connected), the tes t tool c ons erv es pow er by s huting its elf down. If you have not pres s ed a k ey for at leas t 30 m inutes , the test tool turns its elf off autom atic ally . Note If the Power Adapter is connected, ther[...]

Fluke 123 Users Manual 52 Changing the Auto Set Options Normally, the Auto Set function captures waveforms from 15 Hz. To configure Auto Set for waveforms from 1 Hz with unchanged input coupling, do the following: Note Setting the Auto Set adjust to 1 Hz will slow down the Auto Set response.  Open the User Options menu. ô Highlight AUTOSET ADJU[...]

Tips and Troubleshooting Using Proper Grounding 3 53 Using Proper Grounding Incorrect grounding c an c aus e various problem s . This Section gives y ou guidelines for proper grounding. l Use the short ground lead(s) when m eas uring DC or AC signals on input A and input B. (See Figure 3-2.) Warning To avoid electrical shock or fire, use only one C[...]

Fluke 123 Users Manual 54 Solving Printing and Other Communication Errors RS-232 communication may cause problems. When experiencing communication problems, try the following remedies: l Make sure that the interface cable is connected to the correct port on the printer or computer. If necessary use the 9 pin to 25 pin adapter or gender changer. l M[...]

55 Chapter 4 Specifications Introduction Performance Characteristics FLUKE guarantees the properties expressed in numerical values with the stated tolerance. Specified non-tolerance numerical values indicate those that could be nominally expected from the mean of a range of identical ScopeMeter test tools. Environmental Data The environmental data [...]

Fluke 123 Users Manual 56 Dual Input Oscilloscope Vertical Frequency Response DC Coupled: excluding probes and test leads: ................................... DC to 20 MHz (-3 dB) with STL120 1:1 shielded test leads: ............................. DC to 12.5 MHz (-3 dB) DC to 20 MHz (-6 dB) with PM8918 10:1 probe (optional accessory): ..............[...]

Specifications Dual Input Oscilloscope 4 57 Horizontal Scope Modes .................................. Normal, Single, Roll Ranges Normal: equivalent sampling ................... 20 ns to 500 ns/div real time sampling .............................. 1 µ s to 5 s/div Single (real time) ..................................... 1 µ s to 5 s/div Roll (rea[...]

Fluke 123 Users Manual 58 Advanced Scope Functions Display Modes Normal ....... Captures up to 40 ns glitches and displays analog-like persistence waveform. Smooth ...... Suppresses noise from a waveform. Envelope ... Records and displays the minimum and maximum of waveforms over time. Auto Set Continuous fully automatic adjustment of amplitude, ti[...]

Specifications Dual Input Meter 4 59 Dual Input Meter The accuracy of all measurements is within ± (% of reading + number of counts) from 18 ° C to 28 ° C. Add 0.1x (specific accuracy) for each ° C below 18 ° C or above 28 ° C. For voltage measurements with 10:1 probe, add probe uncertainty +1%. More than one waveform period must be visible o[...]

Fluke 123 Users Manual 60 Accuracy: @1 Hz to 1 MHz ............................ ± (0.5% +2 counts) @1 MHz to 10 MHz ....................... ± (1.0% +2 counts) @10 MHz to 40 MHz ..................... ± (2.5% +2 counts) Full Scale Reading ................................. 10 000 counts Duty Cycle (DUTY) Range ......................................[...]

Specifications Dual Input Meter 4 61 Measurement Current .......................... 0.5 mA to 50 nA decreases with increasing ranges Open Circuit Voltage .............................................. <4V Continuity (CONT) Beep ..................................... <(30 Ω ± 5 Ω ) in 50 Ω range Measurement Current ......................[...]

Fluke 123 Users Manual 62 Miscellaneous Display Size .................................... 72 x 72 mm (2.83 x 2.83 in) Resolution ........................................... 240 x 240 pixels Waveform Display: Vertical .............................................. 8 div of 20 pixels Horizontal ...................................... 9.6 div of 25 pix[...]

Specifications Environmental 4 63 Environmental Environmental .... MIL 28800E, Type 3, Class III, Style B Temperature Operating ................................ 0 to 50 ° C (32 to 122 ° F) Storage ................................. -20 to 60 ° C (-4 to 140 ° F) Humidity Operating: @0 to 10 ° C (32 to 50 ° F) ................. noncondensing @10[...]

Fluke 123 Users Manual 64 Safety Designed for measurements on 600 Vrms Category III Installations, Pollution Degree 2, per: • ANSI/ISA S82.01-1994 • EN61010-1 (1993) (IEC1010-1) • CAN/CSA-C22.2 No.1010.1-92 (including approval) • UL3111-1 (including approval) Max. Input Voltage Input A and B Direct on input or with leads ...................[...]

Specifications Safety 4 65 The Fluke 123, including standard accessories, conforms with the EEC directive 89/336 for EMC immunity, as defined by IEC1000-4-3, with the addition of the following tables. Trace disturbance with STL120 Table 1 No visible disturbance E= 3 V/m E= 10 V/m Frequency range 10 kHz to 27 MHz Frequency range 27 MHz to 1 GHz 50 m[...]

Fluke 123 Users Manual 66 Multimeter disturbance: • VDC, VAC, and VAC+DC with STL120 and short ground lead. • OHM, CONT, DIODE, and CAP with STL120, and black test lead to COM. Table 3 Disturbance less than 1% of full scale E= 3 V/m E= 10 V/m Frequency range 10 kHz to 27 MHz VDC, VAC, VAC+DC OHM, CONT, DIODE CAP 500 mV to 1250V 500 Ω to 30 M [...]

67 Index —A— AC120 Alligator Clips, 44 Accessories, 43 AC-Coupling, 26 Acquiring the Waveform, 23 Acquisition Modes, 57 Adjusting Scope Probes, 41 Advanced Meter Functions, 61 Advanced Scope Functions, 58 Alligator Clips, 2, 44 Altitude, 63 Ampere Measurement, 60 Amplitude, 18 Auto Set, 13, 58 Auto Set Configuration, 52 Automatic Power Shutdown[...]

Fluke 123 Users Manual 68 Charge Time, 62 Charger, 44 Charging, 38 Cleaning, 37 Common, 5, 12 Communication Errors, 54 Computer, 36 Connect-and-View function, 13 Connecting a Computer, 36 Continuity, 14, 53, 61 Contrast, 49 Crest Factor, 60 Current Measurement, 60 —D— Date, 50 DC Voltage (VDC), 59 Decibel (dB), 60 Declaration of Conformity, 1 D[...]

Index ( continued ) 69 ITP120, 29, 46 —L— Language, 48 Level, 27 —M— Maintenance, 37 Making Measurements, 14 Manual, 45 Manual Override, 58 Max. Floating Voltage, 56, 64 Max. Input Voltage, 56, 64 Maximum (MAX) Reading, 23 Measurement Connections, 12 Measurements, 14 Mechanical, 62 Memory, 62 Memory Location, 33 Menu Area, 10 Meter A Measur[...]

Fluke 123 Users Manual 70 —S— Safety, 64 Safety Characteristics, 55 Safety Precautions, 4 Safety Requirements, 1 Sampling Rate, 57 Saving, 32 Saving Screens, 32 SCC 120, 36, 46 Scope Modes, 57 Scope Probes, 41, 46, 56 Screen Contrast, 49 Selecting Trigger Parameters, 28 Sensitivity, 56 Serial Printer, 34 Service Manual, 43 Shielded Test Leads, [...]