Fluke ScopeMeter 192B, 192C, 192C/S, ScopeMeter 196B, 196B/S User Manual

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Fluke 192B - 196B/C - 199B/C

ScopeMeter

Users Manual

4822 872 30601 October 2002 Rev. 2, 12/04

LIMITED WARRANTY & LIMITATION OF LIABILITY

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 for the test tool and one year for its accessories. The warranty period begins on the date of shipment. Parts, product repairs and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries or to any product which, in Fluke's opinion, has been misused, altered, neglected or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on nondefective media. Fluke does not warrant that software will be error free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another country.

Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period.

To obtain warranty service, contact your nearest Fluke authorized service center or send the product, with a description of the difficulty, postage and insurance prepaid (FOB Destination), to the nearest Fluke authorized service center. Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that the failure was caused by misuse, alteration, accident or abnormal condition of operation or handling, Fluke will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point).

THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT, RELIANCE OR ANY OTHER THEORY.

Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.

Fluke Corporation, P.O. Box 9090, Everett, WA 98206-9090 USA, or

Fluke Industrial B.V., P.O. Box 90, 7600 AB, Almelo, The Netherlands

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

+31-40-2675200 in Europe

+1-425-446-5500 from other countries

Table of Contents

Chapter Title Page

Unpacking the Test Tool Kit ....................................................................................... 2

Safety Information: Read First ....................................................................................... 4

1 Using The Scope.......................................................................................................... 7

Powering the Test Tool .................................................................................................. 7

Resetting the Test Tool.................................................................................................. 8

Navigating a Menu ......................................................................................................... 9

Hiding Key Labels and Menus ....................................................................................... 10

Input Connections .......................................................................................................... 10

Making Scope Connections ........................................................................................... 11

Displaying an Unknown Signal with Connect-and-View™.............................................. 12

Making Automatic Scope Measurements....................................................................... 13

Freezing the Screen....................................................................................................... 14

Using Average, Persistence and Glitch Capture ............................................................ 15

Acquiring Waveforms..................................................................................................... 18

Pass - Fail Testing (C versions only) ............................................................................. 24

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Users Manual

Analyzing Waveforms .................................................................................................... 25

2 Using The Multimeter .................................................................................................. 27

Making Meter Connections ............................................................................................ 27

Making Multimeter Measurements................................................................................. 28

Freezing the Readings................................................................................................... 31

Selecting Auto/Manual Ranges...................................................................................... 31

Making Relative Measurements..................................................................................... 32

3 Using The Recorder Functions .................................................................................. 33

Opening the Recorder Main Menu................................................................................. 33

Plotting Measurements Over Time (TrendPlot™) .......................................................... 34

Recording Scope Waveforms In Deep Memory (Scope Record)................................... 37

Analyzing a TrendPlot or Scope Record ........................................................................ 40

4 Using Replay, Zoom and Cursors .............................................................................. 41

Replaying the 100 Most Recent Scope Screens............................................................ 41

Zooming in on a Waveform............................................................................................ 44

Making Cursor Measurements....................................................................................... 46

5 Triggering on Waveforms ........................................................................................... 51

Setting Trigger Level and Slope..................................................................................... 52

Using Trigger Delay or Pre-trigger ................................................................................. 53

Automatic Trigger Options ............................................................................................. 54

Triggering on Edges ...................................................................................................... 55

Triggering on External Waveforms ................................................................................ 58

Contents

Triggering on Video Signals ........................................................................................... 59

Triggering on Pulses ...................................................................................................... 61

6 Using Memory, PC and Printer ...................................................................................65

Saving and Recalling .....................................................................................................65

Documenting Screens.................................................................................................... 69

7 Tips ............................................................................................................................... 73

Using the Standard Accessories .................................................................................... 73

Using the Independently Floating Isolated Inputs .......................................................... 75

Using the Tilt Stand........................................................................................................ 77

Resetting the Test Tool..................................................................................................77

Suppressing Key Labels and Menu’s............................................................................. 77

Changing the Information Language.............................................................................. 78

Adjusting the Contrast and Brightness........................................................................... 78

Changing the Display Color (C-versions) ....................................................................... 79

Changing Date and Time ............................................................................................... 79

Saving Battery Life......................................................................................................... 80

Changing the Auto Set Options...................................................................................... 81

8 Maintaining the Test Tool............................................................................................ 83

Cleaning the Test Tool...................................................................................................83

Storing the Test Tool...................................................................................................... 83

Charging the Batteries ................................................................................................... 84

Extending Battery Operation Time ................................................................................. 85

Replacing the NiMH Battery Pack BP190 ...................................................................... 86

Calibrating the Voltage Probes ......................................................................................86

Displaying Calibration Information.................................................................................. 88

(continued)

iii

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Users Manual

Parts and Accessories ................................................................................................... 88

Troubleshooting ............................................................................................................. 93

9 Specifications .............................................................................................................. 95

Introduction.................................................................................................................... 95

Dual Input Oscilloscope ................................................................................................. 96

Automatic Scope Measurements ................................................................................... 98

Meter ............................................................................................................................. 102

DMM Measurements on Meter Inputs............................................................................ 102

Recorder........................................................................................................................ 104

Zoom, Replay and Cursors............................................................................................ 105

Miscellaneous ................................................................................................................ 105

Environmental................................................................................................................ 107

10:1 Probe ..................................................................................................................... 109

Electromagnetic Immunity.............................................................................................. 110

Safety..................................................................................................................... 107

Unpacking the Test Tool Kit

Declaration of Conformity

for

Fluke 192B - 196B/C - 199B/C

ScopeMeter

Manufacturer

Fluke Industrial B.V.

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 73/23/EEC

test tools

Lelyweg 1

Sample tests

Standards used:

EN 61010.1 : 2001

Safety Requirements for Electrical Equipment for

Measurement, Control, and Laboratory Use

EN-IEC61326-1 (1997)

Electrical equipment for

measurements and laboratory

use -EMC requirements-

The tests have been performed in a

typical configuration.

This Conformity is indicated by the symbol

i.e. “Conformité Européenne”.

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Unpacking the Test Tool Kit

The following items are included in your test tool kit:

(2x)

(1x)

(2x)

Note

When new, the rechargeable NiMH battery is not fully charged. See Chapter 8.

(2x)

Figure 1. ScopeMeter Test Tool Kit

Unpacking the Test Tool Kit

# Description

1 ScopeMeter Test Tool

2 Battery Charger (country dependent)

3 10:1 Voltage Probe Set (red)

a) 10:1 Voltage Probe (red) b) Hook Clip for Probe Tip (red) c) Ground Lead with Hook Clip (red) d) Ground Lead with Mini Alligator Clip (black) e) 4-mm Test Probe for Probe Tip (red)

Fluke 192B, 196B/C and 199B/C S versions include also the following items:

# Description

9 Optically Isolated USB Adapter/Cable

10 FlukeView® ScopeMeter® Software for

Windows®

11 Hard Case

f) Ground Spring for Probe Tip (black)

4 10:1 Voltage Probe Set (gray)

a) 10:1 Voltage Probe (gray) b) Hook Clip for Probe Tip (gray) c) Ground Lead with Hook Clip (gray) d) Ground Lead with Mini Alligator Clip (black)

e) 4-mm Test Probe for Probe Tip (gray)

5 a) Test Lead Set

b) Probe ground lead with 4 mm banana jack

Getting Started Manual

CD ROM with Users Manual (multi-language)

8 Shipment box (basic version only)

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Users Manual

Safety Information: Read First

Carefully read the following safety information before using the test tool.

Specific warning and caution statements, where they apply, appear throughout the manual.

A “Warning” identifies conditions and actions that pose hazard(s) to the user.

A “Caution” identifies conditions and actions that may damage the test tool.

The following international symbols are used on the test tool and in this manual:

See explanation in manual

Disposal information

Recycling information

Safety Approval

Double Insulation (Protection Class)

Earth ground

Conformité Européenne

Safety Approval

Warning

To avoid electrical shock or fire:

• Use only the Fluke power supply, Model

BC190 (Battery Charger / Power Adapter).

• Before use check that the selected/indicated

range on the BC190 matches the local line power voltage and frequency.

• For the BC190/808 universal Battery Charger /

Power Adapter) only use line cords that comply with the local safety regulations.

Note:

To accomodate connection to various line power sockets, the BC190/808 universal Battery Charger / Power Adapter is equipped with a male plug that must be connected to a line cord appropriate for local use. Since the adapter is isolated, the line cord does not need to be equipped with a terminal for connection to protective ground. Since line cords with a protective grounding terminal are more commonly available you might consider using these anyhow.

Direct Current

Alternating Current

Safety Information: Read First

Warning

To avoid electrical shock or fire if a test tool input is connected to more than 42 V peak (30 Vrms) or on circuits of more than 4800 VA:

• Use only insulated voltage probes, test leads

and adapters supplied with the test tool, or indicated by Fluke as suitable for the Fluke190 ScopeMeter series.

• Before use, inspect voltage probes, test leads

and accessories for mechanical damage and replace when damaged.

• Remove all probes, test leads and accessories

that are not in use.

• Always connect the battery charger first to the

ac outlet before connecting it to the test tool.

• Do not connect the ground spring (figure 1,

item f) to voltages higher than 42 V peak (30 Vrms) from earth ground.

• Do not apply voltages that differ more than 600

V from earth ground to any input when measuring in a CAT III environment. Do not apply voltages that differ more than 1000 V from earth ground to any input when measuring in a CAT II environment.

• Do not apply voltages that differ more than 600

V from each other to the isolated inputs when measuring in a CAT III environment. Do not apply voltages that differ more than 1000 V from each other to the isolated inputs when measuring in a CAT II environment.

• Do not apply input voltages above the rating of

the instrument. Use caution when using 1:1 test leads because the probe tip voltage will be directly transmitted to the test tool.

• Do not use exposed metal BNC or banana plug

connectors.

• Do not insert metal objects into connectors.

• Always use the test tool only in the manner

specified.

Voltage ratings that are mentioned in the warnings, are given as limits for “working voltage”. They represent V ac rms (50-60 Hz) for ac sinewave applications and as V dc for dc applications.

Measurement Category III refers to distribution level and fixed installation circuits inside a building. Measurement Category II refers to local level, which is applicable for appliances and portable equipment.

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Users Manual

The terms ‘Isolated’ or ‘Electrically floating’ are used in this manual to indicate a measurement in which the test tool input BNC or banana jack is connected to a voltage different from earth ground.

The isolated input connectors have no exposed metal and are fully insulated to protect against electrical shock.

The red and gray BNC jacks, and the red and black 4-mm banana jacks can independently be connected to a voltage above earth ground for isolated (electrically floating) measurements and are rated up to 1000 Vrms CAT II and 600 Vrms CAT III above earth ground.

If Safety Features 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 disconnected from the line power. The matter should then be referred to qualified personnel. Safety is likely to be impaired if, for example, the test tool fails to perform the intended measurements or shows visible damage.

About this Chapter

This chapter provides a step-by-step introduction to the scope functions of the test tool. The introduction does not cover all of the capabilities of the scope functions but gives basic examples to show how to use the menus and perform basic operations.

Powering the Test Tool

Follow the procedure (steps 1 through 3) in Figure 2to power the test tool from a standard ac outlet. See Chapter 8 for instructions on using battery power.

Turn the test tool on with the on/off key.

The test tool powers up in its last setup configuration.

Chapter 1

Using The Scope

Figure 2. Powering the Test Tool

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Resetting the Test Tool

If you want to reset the test tool to the factory settings, do the following:

Turn the test tool off.

Press and hold the USER key.

Press and release.

The test tool turns on, and you should hear a double beep, indicating the reset was successful.

Now look at the display; you will see a screen that looks like Figure 3.

Release the USER key.

Figure 3. The Screen After Reset

Using The Scope Navigating a Menu

Navigating a Menu

The following example shows how to use the test tool's menus to select a function. Subsequently follow steps 1 through 4 to open the scope menu and to choose an item.

Press the SCOPE key to display the labels that define the present use for the four blue function keys at the bottom of the screen.

Figure 4. Basic Navigation

Note

To hide the labels for full screen view, press the

SCOPE key again. This toggling enables you to

check the labels without affecting your settings.

Open the Waveform Options menu. This menu is displayed at the bottom of the screen.

Repeatedly pressing through a menu without changing the settings.

Use the blue arrow keys to highlight the item. Press the blue ENTER key to accept the selection.

Press the ENTER key until you exit the menu.

Note

lets you to step

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Hiding Key Labels and Menus

You can hide a menu or key label at any time:

Press the CLEAR MENU key to hide any key label or menu.

To display menus or key labels, press one of the yellow menu keys, e.g. the SCOPE key.

Input Connections

Look at the top of the test tool. The test tool has four signal inputs: two safety BNC jack inputs (red input A and gray input B) and two safety 4-mm banana jack inputs (red and black). Use the two BNC jack inputs for scope measurements, and the two banana jack inputs for meter measurements.

Isolated input architecture allows independent floating measurements with each input.

Figure 5. Measurement Connections

Using The Scope Making Scope Connections

Making Scope Connections

To make dual input scope measurements, connect the red voltage probe to input A, and the gray voltage probe to input B. Connect the short ground leads of each voltage probe to its own reference potential. (See Figure 6.)

Note

To maximally benefit from having independently isolated floating inputs and to avoid problems caused by improper use, read Chapter 7: “Tips”.

Figure 6. Scope Connections

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Displaying an Unknown Signal with Connect-and-View™

The Connect-and-View feature lets the test tool display complex, unknown signals automatically. This function optimizes the position, range, time base, and triggering and assures a stable display of virtually any waveform. If the signal changes, the setup is automatically adjusted to maintain the best display result. This feature is especially useful for quickly checking several signals.

To enable the Connect-and-View feature, do the following:

Perform an Auto Set. AUTO appears at the top right of the screen.

Figure 7. The Screen After an Auto Set

The bottom line shows the range, the time base, and the trigger information.

The waveform identifier (A) is visible on the bottom right side of the screen, as shown in Figure 7. The input A zero icon (

) at the left side of the screen identifies the ground

level of the waveform.

Press a second time to select the manual range again. MANUAL appears at the top right of the screen.

Use the light-gray bottom of the keypad to change the view of the waveform manually.

RANGE, TIME and MOVE keys at the

Using The Scope Making Automatic Scope Measurements

Making Automatic Scope Measurements

The test tool offers a wide range of automatic scope measurements. You can display two numeric readings:

EADING 1 and READING 2. These readings are selectable

independently, and the measurements can be done on the input A or input B waveform

To choose a frequency measurement for input A, do the following:

Display the SCOPE key labels.

Open the Reading 1 menu.

Select on A. Observe that the highlight jumps to the present measurement.

Select the Hz measurement.

Observe that the top left of the screen displays the Hz measurement. (See Figure 8.)

To choose also a Peak-Peak measurement for Input B as second reading, do the following:

Display the SCOPE key labels.

Open the Reading 2 menu.

Select on B. The highlight jumps to the measurements field.

Open the PEAK menu.

Select the Peak-Peak measurement.

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Figure 8 shows an example of the screen. Note that the Peak-Peak reading for input B appears next to the input A frequency reading at the top of the screen.

Figure 8. Hz and V peak-peak as Scope Readings

Note

The B versions do not provide Vpwm measurements.

Freezing the Screen

You can freeze the screen (all readings and waveforms) at any time.

Freeze the screen. HOLD appears at the right of the reading area.

Resume your measurement.

Using The Scope Using Average, Persistence and Glitch Capture

Using Average, Persistence and Glitch Capture

Using Average for Smoothing Waveforms

To smooth the waveform, do the following:

Display the SCOPE key labels.

Open the Waveform Options menu.

Jump to Average:

Select On... to open the Average

Factors menu

Select Average 64.This averages the outcomes of 64 acquisitions.

You can use the average functions to suppress random or uncorrelated noise in the waveform without loss of bandwidth. Waveform samples with and without smoothing are shown in Figure 9.

Figure 9. Smoothing a Waveform

Exit the menu.

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Using Persistence to Display Waveforms

You can use Persistence to observe dynamic signals.

Display the SCOPE key labels.

Open the Waveform Options menu.

Jump to Waveform: and open the

Persistence... menu.

Select Digital Persistence: Short, Medium, Long or Infinite to

observe dynamic waveforms (C-versions only).

Select Digital Persistence: Off , Envelope: On to see the upper and lower boundaries of dynamic waveforms (envelope mode).

Select Dot-join: On or Off to choose your personal preference for the waveform representation.

Figure 10. Using Persistence to Observe Dynamic

Signals

Using The Scope Using Average, Persistence and Glitch Capture

Displaying Glitches

To capture glitches on a waveform, do the following:

Display the SCOPE key labels.

Open the Waveform Options menu.

Select Glitch Detect: On

You can use this function to display events (glitches or other asynchronous waveforms) of 50 ns (nanoseconds) or wider, or you can display HF modulated waveforms.

When you select the 2 mV/div range Glitch Detect will be turned Off. In the 2 mV/div range you can set Glitch Detect On .

Exit the menu.

Suppressing High Frequency Noise

Switching Glitch Detect to Off will suppress the high frequency noise on a waveform. Averaging will suppress the noise even more.

Display the SCOPE key labels.

Open the Waveform Options menu.

Select Glitch Detect: Off, then select Average: On to open the Average menu

Select Factor : 8x

Tip

Glitch capture and average do not affect bandwidth. Further noise suppression is possible with bandwidth limiting filters. See Chapter 1: “Working with Noisy Waveforms”.

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Acquiring Waveforms

Selecting AC-Coupling

After a reset, the test tool is dc-coupled so that ac and dc voltages appear on the screen.

Use ac-coupling when you wish to observe a small ac signal that rides on a dc signal. To select ac-coupling, do the following:

Observe that the bottom left of the screen displays the ac-coupling icon: .

Display the INPUT A key labels.

Highlight AC.

Reversing the Polarity of the Displayed Waveform

To invert the input A waveform, do the following:

Display the INPUT A key labels.

Open the Input A menu.

Select Inverted and accept inverted waveform display.

For example, a negative-going waveform is displayed as positive-going waveform which may provide a more meaningful view. An inverted display is identified by an inversed trace identifier (

Exit the menu.

) at the right of the waveform.

Using The Scope Acquiring Waveforms

Variable Input Sensitivity

The variable input sensitivity allows you to adjust the input A sensitivity continuously, for example to set the amplitude of a reference signal to exactly 6 divisions.

The input sensitivity of a range can be increased up to 2.5 times, for example between 10 mV/div and 4 mV/div in the 10 mV/div range.

To use the variable input sensitivity, do the following:

1 Apply the input signal

An Auto Set will turn off the variable input sensitivity. You can now select the required input range. Keep in mind that the sensitivity will increase when you start adjusting the variable sensitivity (the displayed trace amplitude will increase).

Perform an Auto Set (AUTO must appear at the top of the screen)

Display the INPUT A key labels.

Open the Input A Options... menu.

Select and accept Variable.

At the bottom left of the screen the text A Var is displayed.

Selecting Variable will turn off cursors and automatic input ranging.

Exit the menu.

Press mV to increase the sensitivity, press V to decrease the sensitivity.

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Working with Noisy Waveforms

To suppress high frequency noise on waveforms, you can limit the working bandwidth to 10 kHz or 20 MHz. This function smoothes the displayed waveform. For the same reason, it improves triggering on the waveform.

To choose HF reject, do the following:

Display the INPUT A key labels.

Open the Input A menu.

Jump to Bandwidth.

Select 10kHz (HF reject) to accept the bandwidth limitation.

Tip

To suppress noise without loss of bandwidth, use the average function or turn off Display

Glitches.

Using Mathematics Functions A±B, AxB, A vs B

When adding (A+B), subtracting (A-B), or multiplying (A*B) the input A and input B waveform, the test tool will display the mathematical result waveform and the input A and input B waveforms.

A versus B provides a plot with input A on the vertical axis and input B on the horizontal axis.

The Mathematics functions perform a point-to-point operation on waveforms A and B.

To use a Mathematics function, do the following:

Display the SCOPE key labels.

Open the Waveform Options menu.

Using The Scope Acquiring Waveforms

Jump to Waveform: and Select Mathematics... to open the Mathematics menu.

Select Function: A+B, A-B, AxB or A vs B.

The sensitivity range of the mathematical result is equal to the sensitivity range of the least sensitive input divided by the scale factor.

Select a scale factor to fit the mathematical result waveform onto the display, and return.

Using Mathematics Function Spectrum (FFT, C Versions)

The Spectrum function shows the spectral content of the input A or input B waveform. It performs an FFT to transform the amplitude waveform from the time domain into the frequency domain.

To reduce the effect of side-lobes (leakage) it is recommended to use auto windowing. It will automatically adapt the part of the waveform that is analyzed to a complete number of cycles

Selecting Hanning, Hamming or no windowing results in a faster update, but also in more leakage.

Ensure that the entire waveform amplitude remains on the screen.

To use the Spectrum function, do the following:

Display the SCOPE key labels.

Open the Waveform Options menu.

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Jump to Waveform: and select Mathematics... to open the Mathematics menu.

Select Function: Spectrum.

You will see a screen that looks like Figure 11.

Observe that the top right of the screen displays SPECTRUM. If it displays LOW AMPL a spectrum measurement cannot be done as the waveform amplitude is too low. If it displays WRONG TB the time base setting does not enable the test tool to display an FFT result. It is either too slow, which can result in aliasing, or too fast, which results in less than one signal period on the screen.

Select Window: Auto (automatic windowing), Hanning, Hamming, or None (no windowing).

Perform a spectrum analysis on trace A, or trace B.

Set the vertical amplitude scale to linear or logarithmic. The horizontal frequency scale is always logarithmic.

Turn the spectrum function off/on (toggle function).

Figure 11. Spectrum measurement

Using The Scope Acquiring Waveforms

Comparing Waveforms

You can display a fixed reference waveform with the actual waveform for comparison.

To create a reference waveform and to display it with the actual waveform, do the following:

Display the SCOPE key labels.

Open the Waveform Options menu.

Jump to the Waveform field.

Select Reference… to open the Waveform Reference menu.

Select On to display the reference waveform. This can be:

- the last used reference waveform (if not available no reference waveform will be shown).

- the envelope waveform if the persistence function Envelope is on.

Select Recall… to recall a saved waveform (or waveform envelope) from memory and use it as a reference waveform.

Select New… to open the New Reference menu.

Continue at step 6.

Select the width of an additional envelope to be added to the momentary waveform.

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To recall a saved waveform from memory and use it as a reference waveform refer also to Chapter 6 Recalling Screens with Associated Setups.

Example of reference waveform with an additional envelope of ±2 pixels:

black pixels: basic waveform gray pixels: ± 2 pixels envelope

1 vertical pixel on the display is 0.04 x range/div 1 horizontal pixel on the display is 0.0375 x range/div

Store the momentary waveform and display it permanently for reference. The display also shows the actual waveform.

Pass - Fail Testing (C versions only)

You can use a reference waveform as a test template for the actual waveform. If at least one sample of a waveform is outside the test template, the failed or passed scope screen will be stored. Up to 100 screens can be stored. If the memory is full, the first screen will be deleted in favor of the new screen to be stored.

The most appropriate reference waveform for the Pass-Fail test is a waveform envelope.

To use the Pass - Fail function using a waveform envelope, do the following:

1 Display a reference waveform as described in the

previous section “Comparing Waveforms”

Each time a scope screen is stored you will hear a beep. Chapter 4 provides information on how to analyze the stored screens.

From the Pass Fail Testing: menu select

Store Fail : each scope screen with samples outside the reference will be stored

Store Pass: each scope screen with no samples outside the reference will be stored

Using The Scope Analyzing Waveforms

Analyzing Waveforms

You can use the analysis functions CURSOR, ZOOM and

REPLAY to perform detailed waveform analysis. These

functions are described in Chapter 4: “Using Cursors, Zoom and Replay”.

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About this Chapter

This chapter provides a step-by-step introduction to the multimeter functions of the test tool (hereafter called “meter”). The introduction gives basic examples to show how to use the menus and perform basic operations.

Chapter 2

Using The Multimeter

Making Meter Connections

Use the two 4-mm safety red ( ) and black (COM) banana jack inputs for the Meter functions. (See Figure

12.)

Note

Typical use of the Meter test leads and accessories is shown in Chapter 7.

Figure 12. Meter Connections

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Making Multimeter Measurements

The screen displays the numeric readings of the measurements on the meter input.

Measuring Resistance Values

To measure a resistance, do the following:

1 Connect the red and black test leads from the

4-mm banana jack inputs to the resistor.

Display the METER key labels.

Open the Measurement menu.

Highlight Ohms.

Select Ohms measurement.

The resistor value is displayed in ohms. Observe also that the bargraph is displayed. (See Figure 13.)

Figure 13. Resistor Value Readings

Using The Multimeter Making Multimeter Measurements

Making a Current Measurement

You can measure current in both Scope mode and Meter mode. Scope mode has the advantage of two waveforms being displayed while you perform measurements. Meter mode has the advantage of high measurement resolution.

The next example explains a typical current measurement in Meter mode.

Warning

Carefully read the instructions about the current probe you are using.

To set up the test tool, do the following:

1 Connect a current probe (e.g. i400, optional)

from the 4-mm banana jack outputs to the conductor to be measured.

Ensure that the red and black probe connectors correspond to the red and black banana jack inputs. (See Figure 14.)

Display the METER key labels.

Figure 14. Measurement Setup

Open the Measurement menu.

Highlight A ac....

Open the Current Probe submenu.

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Now, you will see a screen like in Figure 15

Observe the sensitivity of the current probe. Highlight the corresponding sensitivity in the menu, e.g. 10 mV/A.

Accept the current measurement.

Figure 15. Ampere Measurement Readings

Using The Multimeter Freezing the Readings

Freezing the Readings

You can freeze the displayed readings at any time.

You can use this function to hold accurate readings for later examination.

For saving screens into memory, see Chapter 6.

Freeze the screen. HOLD appears at the top right of the reading area.

Resume your measurement.

Note

Selecting Auto/Manual Ranges

To activate manual ranging, do the following during any Meter measurement:

2 Increase or decrease the range.

Observe how the bargraph sensitivity changes.

Use manual ranging to set a fixed bargraph sensitivity and decimal point.

When in auto ranging, the bargraph sensitivity and decimal point are automatically adjusted while checking different signals.

Activate manual ranging.

Choose auto ranging again.

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Making Relative Measurements

A relative measurement displays the present measurement result relative to a defined reference value.

The following example shows how to perform a relative voltage measurement. First obtain a reference value:

This stores the reference value as reference for subsequent measurements. The stored reference value is displayed in small digits at the bottom right side of the screen after the word

Display the METER key labels.

Measure a voltage to be used as reference value.

Set RELATIVE to ON. (ON is highlighted.)

REFERENCE.

Measure the voltage to be compared to the reference.

Observe that the main reading is displayed as variations from the reference value. The actual reading with its bargraph is displayed beneath these readings. (See Figure

16.)

Figure 16. Making a Relative Measurement

You can use this feature when, for example, you need to monitor input activity (voltage, resistance, temperature) in relation to a known good value.

About this Chapter

This chapter provides a step-by-step introduction to the recorder functions of the test tool. The introduction gives examples to show how to use the menus and perform basic operations.

Opening the Recorder Main Menu

First choose a measurement in scope or meter mode. Now you can choose the recorder functions from the recorder main menu. To open the main menu, do the following:

Chapter 3

Using The Recorder Functions

Open the RECORDER main menu. (See Figure 17.)

Figure 17. Recorder Main Menu

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Plotting Measurements Over Time (TrendPlot™)

Use the TrendPlot function to plot a graph of Scope or Meter measurements as function of time.

Note

Because the navigations for the dual input TrendPlot (Scope) and the single input TrendPlot (Meter) are identical, only TrendPlot (Scope) is explained in the next sections.

Starting a TrendPlot Function

To start plotting a graph of the reading over time, do the following:

1 Apply a signal to the red BNC input A and turn

on Reading 1 in scope mode

Open the RECORDER main menu.

The test tool continuously records the digital readings of the input A measurements and displays these as a graph. The TrendPlot graph rolls from right to left like a paper chart recorder.

Observe that the recorded time from start appears at the bottom of the screen. The present reading appears on top of the screen. (See Figure 18.)

When simultaneously TrendPlotting two readings, the screen area is split into two sections of four divisions each.

Highlight Trend Plot (Scope).

Start the TrendPlot recording.

Note

Using The Recorder Functions Plotting Measurements Over Time (TrendPlot™)

Displaying Recorded Data

When in normal view (NORMAL), only the twelve most recently recorded divisions are displayed on screen. All previous recordings are stored in memory.

VIEW ALL shows all data in memory:

Press repeatedly to toggle between normal view (NORMAL) and overview (VIEW ALL)

Display an overview of the full waveform.

Figure 18. TrendPlot Reading

When the Scope is in automatic mode, automatic vertical scaling is used to fit the TrendPlot graph on the screen.

Set RECORDER to STOP to freeze the recorder function.

Set RECORDER to RUN to restart.

When the recorder memory is full, an automatic compression algorithm is used to compress all samples into half of the memory without loss of transients. The other half of the recorder memory is free again to continue recording.

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Changing the Recorder Options

At the right bottom of the display you can choose to display the time elapsed from start and the actual time of the day.

To change the time reference, proceed from step 6 as follows:

Open the Recorder Options menu.

Select Time of Day or From Start

Now the recorded time or the current time appear at the bottom of the screen.

Turning Off the TrendPlot Display

Exit the recorder function.

Using The Recorder Functions Recording Scope Waveforms In Deep Memory (Scope Record)

Recording Scope Waveforms In Deep Memory (Scope Record)

The SCOPE RECORD function is a roll mode that logs one or two long waveforms. This function can be used to monitor waveforms like motion control signals or the power-on event of an Uninterruptable Power Supply (UPS). During recording, fast transients are captured. Because of the deep memory, recording can be done for more than one day. This function is similar to the roll mode in many DSO’s but has deeper memory and better functionality.

Starting a Scope Record Function

1 Apply a signal to the red BNC input A.

The waveform moves across the screen from right to left like a normal chart recorder. (See Figure 19.)

From the Recorder main menu, highlight Scope Record.

Start the recording.

Observe that the top of the screen displays the following:

• Time from start at the top of the screen.

• The status at the bottom of the screen which includes

Figure 19. Recording Waveforms

the time/div setting as well as the total timespan that fits the memory.

Note

For accurate recordings it is advised to let the instrument first warm up for five minutes.

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Displaying Recorded Data

In Normal view, the samples that roll off the screen are stored in deep memory. When the memory is full, recording continues by shifting the data in memory and deleting the first samples out of memory.

In View All mode, the complete memory contents are displayed on the screen.

You can analyze the recorded waveforms using the Cursors and Zoom functions. See Chapter 4: “Using Replay, Zoom and Cursors”.

Press to toggle between VIEW ALL (overview of all recorded samples) and NORMAL view.

Using Scope Record in Single Sweep Mode

Use the recorder Single Sweep function to automatically stop recording when the deep memory is full.

Continue from step 3 of the previous section:

Open the Recorder options menu.

Jump to the Mode field

(2x)

Select Single Sweep and accept the recorder options.

Using The Recorder Functions Recording Scope Waveforms In Deep Memory (Scope Record)

Using External Triggering to Start or Stop Scope Record

To record an electrical event that causes a fault, it might be useful to start or stop recording on an external trigger signal:

Start on trigger to start recording; recording stops when the deep memory is full

Stop on trigger to stop recording.

Stop when untriggered to continue recording as long as

a next trigger comes within 1 division in view all mode.

To set up the test tool, continue from step 3 of the previous section:

4 Apply the signal to be recorded to the red BNC

input A. Apply a trigger signal to the red and black external trigger banana inputs. (See Figure

20.)

Figure 20. Scope Record Using External Triggering

Jump to Display Glitches:.

Jump to Mode:.

Select on EXT. ... to open the

Single Sweep on Ext. menu.

Open the Recorder Options menu.

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Select one of the Conditions: and jump to Slope:.

Select the desired trigger slope, and jump to Level:

During recording samples are continuously saved in deep memory. The last twelve recorded divisions are displayed on the screen. Use View All to display the full memory contents.

To learn more about the Single Shot trigger function, see Chapter 5 “Triggering on Waveforms”.

Select the 0.12V or 1.2 V trigger level and accept all recorder options.

Note

Figure 21. Triggered Single Sweep Recording

Analyzing a TrendPlot or Scope Record

From a Scope TrendPlot or Scope Record you can use the analysis functions CURSORS and ZOOM to perform detailed waveform analysis. These functions are described in Chapter 4: “Using Replay, Zoom and Cursors”.

Using Replay, Zoom and Cursors

About this Chapter

This chapter covers the capabilities of the analysis functions Cursor, Zoom, and Replay. These functions can be used with one or more of the primary functions Scope, TrendPlot or Scope Record.

It is possible to combine two or three analysis functions. A typical application using these functions follows:

• First replay the last screens to find the screen of

special interest.

• Then zoom in on the signal event.

• Finally, make measurements using the cursors.

Chapter 4

Replaying the 100 Most Recent Scope Screens

When you are in scope mode, the test tool automatically stores the 100 most recent screens. When you press the

HOLD key or the REPLAY key, the memory contents are

frozen. Use the functions in the REPLAY menu to “go back in time” by stepping through the stored screens to find the screen of your interest. This feature lets you capture and view signals even if you did not press HOLD.

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Replaying Step-by-Step

To step through the last scope screens, do the following:

From scope mode, open the

REPLAY menu.

Observe that the trace is frozen and that REPLAY appears at the top of the screen (see Figure 22).

Observe that the bottom of the waveform area displays the replay bar with a screen number and related time stamp:

Step through the previous screens.

Step through the next screens.

Figure 22. Replaying a Waveform

The replay bar represents all 100 stored screens in memory. The icon represents the picture being displayed on the screen (in this example: SCREEN -84). If the bar is partly white, the memory is not completely filled with 100 screens.

From this point you can use the zoom and cursor functions to study the signal in more detail.

Using Replay, Zoom and Cursors Replaying the 100 Most Recent Scope Screens

Replaying Continuously

You can also replay the stored screens continuously, like playing a video tape.

To replay continuously, do the following:

From Scope mode, open the

REPLAY menu.

Observe that the trace is frozen and REPLAY appears at the top of the screen.

Wait until the screen with the signal event of interest appears.

Continuously replay the stored screens in ascending order.

Stop the continuous replay.

Turning Off the Replay Function

Turn off REPLAY.

Capturing 100 Intermittents Automatically

When you use the test tool in triggered mode, 100 triggered screens are captured. This way you could use Pulse Triggering to trigger and capture 100 intermittent glitches or you could use External Triggering to capture 100 UPS startups.

By combining the trigger possibilities with the capability of capturing 100 screens for later replay, you can leave the test tool unattended to capture intermittent signal anomalies.

For triggering, see Chapter 5: “Triggering on Waveforms”.

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Zooming in on a Waveform

To obtain a more detailed view of a waveform, you can zoom in on a waveform using the

To zoom in on a waveform, do the following:

ZOOM function.

Display the ZOOM key labels.

Observe that the trace is frozen,

ZOOM appears at the top of the

screen, and the waveform is magnified.

Enlarge (decrease the time/div) or shrink (increase the time/div) the waveform.

Scroll. A position bar displays the position of the zoomed part in relation to the total waveform.

Tip

Even when the key labels are not displayed at the bottom of the screen, you can still use the arrow keys to zoom in and out.

Figure 23. Zooming in a Waveform

Observe that the bottom of the waveform area displays the zoom ratio, position bar, and time/div (see Figure 23). The zoom range depends on the amount of data samples stored in memory.

From this point you can use the cursor function for further measurements on the waveform.

Using Replay, Zoom and Cursors Zooming in on a Waveform

Displaying the Zoomed Waveform

The VIEW ALL feature is useful when you quickly need to see the complete waveform and then return to the zoomed part.

Press repeatedly to toggle between the zoomed part of the waveform and the complete waveform.

Display the complete waveform.

Turning Off the Zoom Function

Turn off the ZOOM function.

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Making Cursor Measurements

Cursors allow you to make precise digital measurements on waveforms. This can be done on live waveforms, recorded waveforms, and on saved waveforms.

Using Horizontal Cursors on a Waveform

To use the cursors for a voltage measurement, do the following:

From scope mode, display the cursor key labels.

Press to highlight . Observe that two horizontal cursors are displayed.

Highlight the upper cursor.

Move the upper cursor to the desired position on the screen.

Highlight the lower cursor.

Move the lower cursor to the desired position on the screen.

Note

Even when the key labels are not displayed at the bottom of the screen, you still can use the arrow keys. This allows full control of both cursors while having full screen view.

Figure 24. Voltage Measurement with Cursors

The screen shows the voltage difference between the two cursors and the voltage at the cursors. (See Figure 24.)

Use horizontal cursors to measure the amplitude, high or low value, or overshoot of a waveform.

Using Replay, Zoom and Cursors Making Cursor Measurements

Using Vertical Cursors on a Waveform

To use the cursors for a time measurement, or for an RMS measurement of the trace section between the cursors (C versions), do the following:

From scope mode, display the cursor key labels.

Press to highlight . Observe that two vertical cursors are displayed. Markers (—) identify the point where the cursors cross the waveform.

Choose for example time measurement: READING T.

If necessary, choose the trace:

TRACE A ,B, or M (Mathematics).

Highlight the left cursor.

Move the left cursor to the desired position on the waveform.

Highlight the right cursor.

Figure 25. Time Measurement with Cursors

The screen shows the time difference between the cursors and the voltage difference between the two markers. (See Figure 25.)

Move the right cursor to the desired position on the waveform.

Select OFF to turn off the cursors.

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Using Cursors on a A+B, A-B or A*B Waveform

Cursor measurements on a A*B waveform give a reading in Watts if input A measures (milli)Volts and input B measures (milli)Amperes.

For other cursor measurements on a A+B, A-B or A*B waveform no reading will be available if the input A and input B measurement unit are different.

Using Cursors on Spectrum Measurements (C versions)

To do a cursor measurent on a spectrum, do the following:

From Spectrum measurement display the cursor key label.

Move the cursor and observe the readings at the top of the screen.

Using Replay, Zoom and Cursors Making Cursor Measurements

Making Rise Time Measurements

To measure rise time, do the following:

From scope mode, display the cursor key labels.

Press to highlight (rise time). Observe that two horizontal cursors are displayed.

For multiple traces select the required trace A, B, or M (if a math function is active).

Select MANUAL or AUTO (this automatically does steps 5 to 7).

Move the upper cursor to 100% of the trace height. A marker is shown at 90%.

Highlight the other cursor.

The reading shows the risetime from 10%-90% of the trace amplitude.

Move the lower cursor to 0% of the trace height. A marker is shown at 10%.

Figure 26. Risetime Measurement

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About this Chapter

This chapter provides an introduction to the trigger functions of the test tool. Triggering tells the test tool when to begin displaying the waveform. You can use fully automatic triggering, take control of one or more main trigger functions (semi-automatic triggering), or you can use dedicated trigger functions to capture special waveforms.

Following are some typical trigger applications:

• Use the Connect-and-View™ function to have full

automatic triggering and instant display of virtually any waveform.

Chapter 5

Triggering on Waveforms

• If the signal is unstable or has a very low frequency,

you can control the trigger level, slope, and trigger delay for a better view of the signal. (See next section.)

• For dedicated applications, use one of the four

manual trigger functions:

• Edge triggering

• External triggering

• Video triggering

• Pulse Width triggering

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Setting Trigger Level and Slope

The Connect-and-View™ function enables hands-off triggering to display complex unknown signals.

When your test tool is in manual range, do the following:

Automatic triggering assures a stable display of virtually any signal.

From this point, you can take over the basic trigger controls such as level, slope and delay. To optimize trigger level and slope manually, do the following:

Perform an auto set. AUTO appears at the top right of the screen.

Display the TRIGGER key labels.

Trigger on either positive slope or negative slope of the chosen waveform.

Dual Slope Triggering ( X ): C versions can trigger on both

positive slope and negative slope.

Enable the arrow keys for manual trigger level adjustment.

Figure 27. Screen with all Trigger Information

Observe the trigger icon that indicates the trigger position, trigger level, and slope.

At the bottom of the screen the trigger parameters are displayed (See Figure 27) . For example, means that input A is used as the trigger source with a positive slope.

When no trigger is found, the trigger parameters appear in gray.

Adjust the trigger level.

Triggering on Waveforms Using Trigger Delay or Pre-trigger

Using Trigger Delay or Pre-trigger

You can begin to display the waveform some time before or after the trigger point has been detected. Initially, you have 2 divisions of pre-trigger view (negative delay).

To set the trigger delay, do the following:

Observe that the trigger icon on the screen moves to show the new trigger position. When the trigger position moves left off of the screen, the trigger icon changes into

to indicate that you have selected a trigger delay. Moving the trigger icon to the right on the display gives you a pre-trigger view.

In case of a trigger delay, the status at the bottom of the screen will change. For example:

This means that input A is used as the trigger source with a positive slope. The 500.0 ms indicates the (positive) delay between trigger point and waveform display.

When no trigger is found, the trigger parameters appear in gray.

Hold down to adjust the trigger delay.

Figure 28. Trigger Delay or Pre-trigger View

Figure 28 shows an example of a trigger delay of 500 ms (top) and an example of pre-trigger view of 8 divisions (bottom).

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Automatic Trigger Options

In the trigger menu, settings for automatic triggering can be changed as follows. (See also Chapter 1: “Displaying an Unknown Signal with Connect-and-View”)

The

TRIGGER key labels can differ depending on

the latest trigger function used.

Display the TRIGGER key labels.

Note

Open the Trigger Options menu.

Open the Automatic Trigger menu.

If the frequency range of the automatic triggering is set to > 15 Hz, the Connect-and-View™ function responds more quickly. The response is quicker because the test tool is instructed not to analyze low frequency signal components. However, when you measure frequencies lower than 15 Hz, the test tool must be instructed to analyze low frequency components for automatic triggering:

Select > 1 HZ and return to the measurement screen.

Triggering on Waveforms Triggering on Edges

Triggering on Edges

If the signal is instable or has a very low frequency, use edge triggering to obtain full manual trigger control.

To trigger on rising edges of the input A waveform, do the following:

When Free Run is selected, the test tool updates the screen even if there are no triggers. A trace always appears on the screen.

Display the TRIGGER key labels.

Open the Trigger Options menu.

Open the Trigger on Edge menu.

When On Trigger is selected, the test tool needs a trigger to display a waveform. Use this mode if you want to update the screen only when valid triggers occur.

When Single Shot is selected, the test tool waits for a trigger. After receiving a trigger, the waveform is displayed and the instruments is set to HOLD.

In most cases it is advised to use the Free Run mode:

Select Free Run, jump to Noise reject Filter.

Set Noise reject Filter to Off.

Set NCycle to Off (C versions)

Observe that the key labels at the bottom of the screen have adapted to allow further selection of specific edge trigger settings:

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Triggering on Noisy Waveforms

To reduce jitter on the screen when triggering on noisy waveforms, you can use a noise rejection filter. Continue from step 3 of the previous example as follows:

Select On Trigger, jump to Noise reject Filter.

Set Noise reject Filter to On.

Observe that the trigger gap has increased. This is indicated by a taller trigger icon .

Making a Single Acquisition

To catch single events, you can perform a single shot acquisition (one-time screen update). To set up the test tool for a single shot of the input A waveform, continue from step 3 again:

Select Single Shot.

Accept the settings.

The word WAITING appears at the top of the screen indicating that the test tool is waiting for a trigger. As soon as the test tool receives a trigger, the waveform is displayed and the instrument is set to hold. This is indicated by the word HOLD at top of the screen.

The test tool will now have a screen like Figure 29.

Arm the test tool for a new single shot.

Tip

The test tool stores all single shots in the replay memory. Use the Replay function to look at all the stored single shots.

Figure 29. Making a Single Shot Measurement

Triggering on Waveforms Triggering on Edges

N-Cycle Triggering (C versions)

N-Cycle triggering enables you to create a stable picture of for example n-cycle burst waveforms.

Each next trigger is generated after the waveform has crossed the trigger level N times in the direction that complies with the selected trigger slope.

To select N-Cycle triggering, continue from step 3 again:

Select On Trigger or Single Shot, jump to Noise reject Filter.

Set Noise reject Filter On or Off.

Set NCycle to On

Observe that the key labels at the bottom of the screen have been changed to allow further selection of specific N-Cycle trigger settings:

Set the number of cycles N

8 Adjust the trigger level

Traces with N-Cycle triggering (N=2) and without N-Cycle triggering are shown in Figure 30.

Figure 30. N-Cycle triggering

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Triggering on External Waveforms

Use external triggering when you want to display waveforms on inputs A and B while triggering on a third signal. You can choose external triggering with automatic triggering or with edge triggering.

1 Supply a signal to the red and black 4-mm

banana jack inputs. See Figure 31.

In this example you continue from the Trigger on Edges example. To choose the external signal as trigger source, continue as follows:

Observe that the key labels at the bottom of the screen have been adapted to allow selection of two different external trigger levels: 0.12 V and 1.2 V:

Display the TRIGGER (On Edges) key labels.

Select Ext (external) edge trigger.

Figure 31. External Triggering

From this point the trigger level is fixed and is compatible with logic signals.

Select 1.2V under the Ext LEVEL label.

Triggering on Waveforms Triggering on Video Signals

Triggering on Video Signals

To trigger on a video signal, first select the standard of the video signal you are going to measure:

1 Apply a video signal to the red input A.

Display the TRIGGER key labels.

Open the Trigger Options menu.

Figure 32. Measuring Interlaced Video Signals

Select Video on A … to open the Trigger on Video menu.

Select the video standard and return.

Trigger level and slope are now fixed.

Observe that the key labels at the bottom of the screen

Select positive signal polarity for video signals with negative going sync pulses.

have been changed to allow further selection of specific video trigger settings:

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Triggering on Video Frames

Use FIELD 1 or FIELD 2 to trigger either on the first half of the frame (odd) or on the second half of the frame (even).To trigger on the second half of the frame, do the following:

The signal part of the even field is displayed on the screen.

Choose FIELD 2.

Triggering on Video Lines

Use ALL LINES to trigger on all line synchronization pulses (horizontal synchronization).

The signal of one line is displayed on the screen. The screen is updated with the signal of the next line immediately after the test tool triggers on the horizontal synchronization pulse.

To view a specific video line in more detail, you can select the line number. For example, to measure on video line 123, continue from step 6 as follows:

The signal of line 123 is displayed on the screen. Observe that the status line now also shows the selected line number. The screen is continuously updated with the signal of line 123.

Choose ALL LINES.

Enable video line selection.

Select number 123.

Triggering on Waveforms Triggering on Pulses

Triggering on Pulses

Use pulse width triggering to isolate and display specific pulses that you can qualify by time, such as glitches, missing pulses, bursts or signal dropouts.

Detecting Narrow Pulses

To set the test tool to trigger on narrow positive pulses shorter than 5 ms, do the following:

1 Apply a video signal to the red input A.

Display the TRIGGER key labels.

Open the Trigger Options menu.

Select Pulse Width on A... to open the Trigger on Pulse Width menu.

Select the positive pulse icon, then jump to Condition.

Select <t, then jump to Update.

Select On Trigger.

The test tool is now prepared to trigger on narrow pulses only. Observe that the trigger key labels at the bottom of the screen have been adapted to set the pulse conditions:

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To set the pulse width to 5 ms, do the following:

All narrow positive pulses shorter than 5 ms are now displayed on the screen. (See Figure 33.)

Enable the arrow keys to adjust the pulse width.

Select 5 ms.

Tip

The test tool stores all triggered screens in the replay memory. For example, if you setup your triggering for glitches, you can capture 100 glitches with time stamps. Use the REPLAY key to look at all the stored glitches.

Figure 33. Triggering on Narrow Glitches

Triggering on Waveforms Triggering on Pulses

Finding Missing Pulses

The next example covers finding missing pulses in a train of positive pulses. In this example it is assumed that the pulses have a 100 ms distance between the rising edges. If the time accidently increases to 200 ms, a pulse is missing. To set the test tool to trigger on such missing pulses, let it trigger on gaps bigger than about 150 ms. Do the following:

Display the TRIGGER key labels.

Open the Trigger Options menu.

Select Pulse Width on A... to open the Trigger on Pulse Width menu.

Select the positive pulse icon to trigger on the gap between the positive pulses, then jump to Condition.

Select >t, then jump to Update.

The test tool is now prepared to trigger on pulse gaps. Observe that the trigger menu at the bottom of the screen has been adapted to set the pulse condition:

Select On Trigger.

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To set the pulse width to 150 ms, continue as follows:

Enable the arrow keys to adjust the pulse width.

Select 150 ms.

Figure 34. Triggering on Missing Pulses

About this Chapter

This chapter provides a step-by-step introduction to the general functions of the test tool that can be used in the three main modes: Scope, Meter, or Recorder. You will find information on printer and computer communication at the end of this chapter.

Chapter 6

Using Memory, PC and Printer

Saving and Recalling

You can:

• Save screens and setups to memory, and recall them

again from memory. The test tool has 10 screen and setup memories and 2 record and setup memories.

• Recall screens and recordings to analyze or print the

screen image at a later date.

• Recall a setup to continue a measurement with the

recalled operating configuration.

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Saving Screens with Associated Setups

To save a screen in memory location 10, do the following:

Display the SAVE/PRINT key labels.

From this point the screen is frozen until you hide the

SAVE/PRINT key labels again.

Open the Save menu.

Observe that free memory locations are indicated by an open square (). Filled memory locations are indicated by a solid square ().

3 Highlight SCREEN+SETUP location 10.

The two record+setup memory locations store more than what is just visible on the screen. In TrendPlot or scope record mode the full recording is saved. In scope mode you can save all 100 replay screens in a single record+setup memory location.

Save the actual screen.

Note

Using Memory, PC and Printer Saving and Recalling

Deleting Screens with Associated Setups

To delete all screens and associated setups, continue from step 2 of the previous example as follows:

To delete only one screen and setup, continue from step 2 of the previous example as follows:

Delete all saved screens and setups.

Highlight SCREEN+SETUP location 5.

Delete the saved screen+setup of memory location 5.

Recalling Screens with Associated Setups

To recall screen+setup 1, do the following:

Display the SAVE/PRINT key labels.

Open the Recall menu.

3 Highlight SCREEN+SETUP location 1.

Observe that the recalled waveform is displayed and that

HOLD appears on the screen. From this point you can use

cursors and zoom for analysis or you can print the recalled screen.

To recall a sceen as a reference waveform to compare it with an actually measured waveform, continue from step 3 as follows:

Use RECALL to recall the saved screen.

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Use RECALL FOR REFERENCE to recall the saved screen.

Resume the measurement. Both, the reference screen and the measurement screen will be displayed.

Recalling a Setup Configuration

To recall the setup configuration from memory 1, do the following:

Display the SAVE/PRINT key labels.

Open the Recall menu.

3 Highlight SCREEN+SETUP location 1.

Observe that RUN appears at the top right of the screen. From this point you continue in the new operating configuration.

Use RECALL SETUP to recall the saved setup.

Using Memory, PC and Printer Documenting Screens

Viewing Stored Screens

To scroll through the memories while looking at the stored screens, do the following:

Display the SAVE/PRINT key labels.

Open the View... menu.

Highlight a screen location, and view the screen properties.

View the screen, and open the viewer.

Scroll through all stored screens.

Documenting Screens

With the FlukeView® software you can upload waveform data and screen bitmaps to your PC or notebook computer for further processing. Printing can also be done by connecting the test tool directly to a printer.

Connecting to a Computer

To connect the test tool to a PC or notebook computer and use the FlukeView software for Windows® (SW90W), do the following:

z Use the Optically Isolated Adapter/Cable (USB:

OC4USB; RS-232: PM9080) to connect a computer to the OPTICAL PORT of the test tool. (See Figure 35.)

Figure 35. Connecting a Computer

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Note

For information about installing and using the FlukeView ScopeMeter software, see the SW90W Users Manual.

A Software & Cable Carrying Case Kit is optionally available as model number SCC190.

Connecting to a Printer

To print a screen directly to a printer, use one of the following adapters:

z The Optically Isolated RS-232 Adapter/Cable

(PM9080, optional) to connect a serial printer to the OPTICAL PORT of the test tool. (See Figure 36.)

z The Print Adapter Cable (PAC91, optional) to connect

a parallel printer to the OPTICAL PORT of the test tool. (See Figure 37.)

Before printing, you must setup the test tool for a specific printer.

Figure 36. Connecting a Serial Printer

Figure 37. Connecting a Parallel Printer

Using Memory, PC and Printer Documenting Screens

Setting up the Printing Configuration

This example demonstrates how to set up the test tool for printing on a postscript printer with a 9600 baud rate:

Display the USER OPTIONS key labels.

Open the User Options menu.

Open the Printer Setup submenu.

Select Postscript and jump to Baud Rate.

Select a baud rate of 9600 and return to normal mode.

Whenever possible, choose the option Postscript when printing screens. This option gives the best printing results. Consult the manual that came with your printer to find out whether it has Postscript printing possibilities.

To connect the SII (Seiko Instruments Inc.) DPU-414 thermal printer you must use the printer adapter cable PAC91. (See page 70.)

Printing a Screen

To print the currently displayed screen, do the following:

A message appears at the bottom of the screen indicating that the test tool is busy printing.

Screens will be printed in black and white.

Clear the menu if you do not want to print it.

Display the SAVE/PRINT key labels.

Start printing.

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About this Chapter

This chapter gives you information and tips on how you can make the best use of the test tool.

Chapter 7

Tips

Using the Standard Accessories

The following illustrations show the use of the standard accessories such as voltage probes, test leads, and the various clips.

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Figure 38. HF Voltage Probe Connection Using

Ground Spring

Warning

To avoid electrical shock or fire, do not connect the ground spring to voltages higher than 30 Vrms from earth ground.

Figure 39. Electronic Connections for Scope

Measurements Using Hook Clips and Hook Clip

Grounding

Figure 40. Electronic Connections for Scope

Measurements Using Hook Clips and Alligator Clip

Grounding

Figure 41. Manual Probing for Meter Measurements

using the Test Lead Set

Tips Using the Independently Floating Isolated Inputs

Using the Independently Floating Isolated Inputs

You can use the independently floating isolated inputs to measure signals that are independently floating from each other.

Independently floating isolated inputs offer additional safety and measurement capabilities compared to inputs with common references or grounds.

Measuring Using Independently Floating Isolated Inputs

The test tool has independently floating isolated inputs. Each input section (A, B, External Trigger / DMM) has its own signal input and its own reference input. The reference input of each input section is electrically isolated from the reference inputs of the other input sections. The isolated input architecture makes the test tool about as versatile as having three independent instruments. The advantages of having independently floating isolated inputs are:

• It allows simultaneous measurement of independently

floating signals.

• Additional safety. Since the commons are not directly

connected, the chance of causing short circuit when measuring multiple signals is greatly reduced.

• Additional safety. When measuring in systems with

multiple grounds, the ground currents induced are kept to a minimum.

Because the references are not connected together inside the test tool, each reference of the used inputs must be connected to a reference voltage.

Independently floating isolated inputs are still coupled by parasitic capacitance. This can occur between the input references and the environment, and between the input references mutually (see Figure 42). For this reason, you should connect the references to a system ground or another stable voltage. If the reference of an input is connected to a high speed and / or high voltage signal, you should be aware of parasitic capacitance. (See Figure 42 , Figure 43, Figure 44 and Figure 45.)

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NALOG INPUT DIGITAL CONTROLLER

ANALOG GROUND

DIGITAL GROUND

Figure 42. Parasitic capacitance between probes,

instrument and environment

MOTION/MOTOR CONTROLLER

DIGITAL GROUND

DC BUS

Figure 43. Parasitic capacitance between analog and

digital reference

Figure 44. Correct connection of reference leads

NALOG INPUT DIGITAL CONTROLLER

DIGITAL

ANALOG GROUND

GROUND

Figure 45. Wrong connection of reference leads

Noise that is picked up by reference lead B can be transmitted by parasitic capacitance to the analog input amplifier.

Tips Using the Tilt Stand

Using the Tilt Stand

The test tool is equipped with a tilt stand, allowing viewing from an angle while placed on a table. From this position you can access the OPTICAL PORT at the side of the test tool. The typical position is shown in Figure 46.

Figure 46. Using the Tilt Stand

Resetting the Test Tool

If you want to reset the test tool to the factory settings, do the following:

Turn the test tool off.

Press and hold.

Press and release.

The test tool turns on, and you should hear a double beep, indicating the reset was successful.

Release.

Suppressing Key Labels and Menu’s

You can hide a menu or key label at any time:

Hide any key label or menu.

To display menus or key labels, press one of the yellow menu keys, e.g. the

SCOPE key.

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Changing the Information Language

During operation of the test tool, messages may appear at the bottom of the screen. You can select the language in which these messages are displayed. In this example you can select English or French . To change the language from English to French, do the following:

Display the USER key labels.

Open the Language Select menu.

Highlight FRENCH.

Accept French as the language.

Adjusting the Contrast and Brightness

To adjust the contrast and backlight brightness, do the following:

3 Adjust the contrast of the screen.

The new contrast and brightness are stored until a new adjustment is made.

To save battery power, the test tool is in economic brightness mode when operated on the battery. The high brightness intensity increases when you connect the power adapter.

Using dimmed light lengthens maximum battery power operation by about one hour.

Display the USER key labels.

Enable the arrow keys for manual contrast and backlight adjustment.

Change the backlight.

Note

Tips Changing the Display Color (C-versions)

Changing the Display Color (C-versions)

To set the display to color or Black and White, do the following:

Display the USER key labels.

Open the User Options menu.

Open Display Options menu.

Choose display mode Color or Black and White, and accept it.

Changing Date and Time

The test tool has a date and time clock. For example, to change the date to 19 April, 2002, do the following:

Display the USER key labels.

Open the User Options menu.

Open Date Adjust menu.

Choose 2002, jump to Month.

Choose 04, jump to Day.

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Choose 19, jump to Format.

Choose DD/MM/YY, accept the new date.

You can change the time in a similar way by opening the Time Adjust menu (steps 2 and 3.)

Saving Battery Life

When operated on the battery (no battery charger connected), the test tool conserves power by shutting itself down. If you have not pressed a key for at least 30 minutes, the test tool turns itself off automatically.

Note

If the power adapter is connected, there is no automatic power shutdown.

Automatic power shutdown will not occur if TrendPlot or Scope Record is on, but the backlight will dim. Recording will continue even if the battery is low, and retention of memories is not jeopardized.

Setting the Power Down Timer

Initially the power shutdown time is 30 minutes. You can set the power shutdown time to 5 minutes as following:

Display the USER key labels.

Open the User Options menu.

Open the Battery Save Options menu.

Select 5 Minutes.

Tips Changing the Auto Set Options

Changing the Auto Set Options

With the next procedure you can choose how auto set behaves when you press the

Display the USER key labels.

Open the User Options menu.

Open the Auto Set Adjust menu.

If the frequency range is set to > 15 Hz, the Connect-andView function responds more quickly. The response is quicker because the test tool is instructed not to analyze low frequency signal components. However, when you measure frequencies lower than 15 Hz, the test tool must be instructed to analyze low frequency components for automatic triggering:

AUTO (auto set) key.

Select Signal > 1 Hz, then jump to Coupling.

With the coupling option you can choose how auto set behaves. When you press the coupling can either be set to dc or left unchanged:

Select Unchanged.

AUTO (auto set) key, the

Note

The auto set option for the signal frequency is similar to the automatic trigger option for the signal frequency. (See Chapter 5: “Automatic Trigger Options”). However, the auto set option determines the behavior of the auto set function and shows only effect when you press the auto set key.

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Chapter 8

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 chapter.

Cleaning the Test Tool

Clean the test tool with a damp cloth and a mild soap. Do not use abrasives, solvents, or alcohol. These may damage the text on the test tool.

Storing the Test Tool

If you are storing the test tool for an extended period of time, charge the NiMH (Nickel-Metal Hydride) batteries before storing.

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Charging the Batteries

At delivery, the NiMH batteries may be empty and must be charged for 4 hours (with the test tool turned off) to reach full charge. When fully charged, the batteries provide 4 hours of use.

When battery power is used, the battery indicator at the top of the screen informs you about the condition of the batteries. The battery symbols are: symbol indicates that there are typically five minutes of operating time left.

To charge the batteries and power the instrument, connect the battery charger as shown in Figure 47. To charge the batteries more quickly, turn off the test tool.

Caution

To avoid overheating of the batteries during charging, do not exceed the allowable ambient temperature given in the specifications.

Note

No damage will occur if the charger is connected for long periods, e.g., during the weekend. The instrument then automatically switches to trickle charging.

. The

Figure 47. Charging the Batteries

Maintaining the Test Tool Extending Battery Operation Time

Extending Battery Operation Time

Typically, NiMH batteries always meet the specified operating time. However, if the batteries have been extremely discharged (for example, when empty batteries were stored for a long period) it is possible that the battery condition has deteriorated.

To keep the batteries in optimal condition, observe the following guidelines:

• Operate the test tool on batteries until the

appears at the bottom of the screen. This indicates that the battery level is low and that the NiMH batteries need to be recharged.

• To obtain optimal battery condition again, you can

refresh the batteries. During a battery refresh, the batteries will be fully discharged and charged again. A complete refresh cycle takes about 12 hours and should be done about four times a year. You can check the latest battery refresh date. See section “Displaying Calibration Information”.

symbol

To refresh the battery, make sure that the test tool is line powered and proceed as follows:

A message appears asking whether you want to start the refresh cycle now.

Do not disconnect the battery charger during the refresh cycle. This will interrupt the refresh cycle.

After starting the refresh cycle, the screen will be black.

Display the USER key labels.

Open the User Options menu.

Start the refresh cycle.

Note

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Replacing the NiMH Battery Pack BP190

Usually it should not be necessary to replace the battery pack. However, if replacement is needed, this should be done by qualified personnel only. Contact your nearest Fluke center for more information.

Calibrating the Voltage Probes

To meet full user specifications, you need to adjust the red and gray voltage probes for optimal response. The calibration consists of a high frequency adjustment and a dc calibration for 10:1 probes. The dc calibration is not possible for 100:1 probes.

This example shows how to calibrate the 10:1 voltage probes:

Display the input A key labels.

Figure 48. Adjusting Voltage Probes

Open the Probe on A menu.

If the 10:1 option is already selected, proceed with step 5.

Select 10:1, then return.

Select Voltage, then jump to Attenuation.

Maintaining the Test Tool Calibrating the Voltage Probes

Repeat steps 2 and 3 and proceed as follows:

Select Probe Cal with the arrow keys, then accept.

A message appears asking you whether to start the 10:1 probe calibration.

A message appears telling you how to connect the probe. Connect the red 10:1 voltage probe from the red input A jack to the red banana jack. Connect the reference lead to the black banana jack. (See Figure 48.)

Start the probe calibration.

Adjust the trimmer screw in the probe housing until a pure square wave is displayed.

Continue with DC calibration. Automatic DC calibration is only possible for 10:1 voltage probes.

The test tool automatically calibrates itself to the probe. During calibration you should not touch the probe. A message indicates when the DC calibration has completed successfully.

Repeat the procedure for the gray 10:1 voltage probe. Connect the grey 10:1 voltage probe from the grey input B jack to the red banana jack. Connect the reference lead to the black banana jack.

When using 100:1 voltage probes, choose 100:1 attenuation to perform a HF adjustment. Automatic dc calibration is not possible with this probe type.

Return.

Note

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Displaying Calibration Information

You can display version number and calibration date:

The screen gives you information about the model number with software version, the calibration number with latest calibration date, and the latest battery refresh date.

Recalibration must be carried out by qualified personnel. Contact your local Fluke representative for recalibration.

Display the USER key labels.

Open the Version & Calibration menu.

Return.

Parts and Accessories

The following tables list the user-replaceable parts for the various test tool models. For additional optional accessories, see the ScopeMeter Accessories booklet.

To order replacement parts or additional accessories, contact your nearest service center.

Maintaining the Test Tool Parts and Accessories

Table 1. Replacement Parts

Item Ordering Code

Battery Charger, available models: Universal Europe 230 V, 50 and 60 Hz North America 120 V, 50 and 60 Hz United Kingdom 240 V, 50 and 60 Hz Japan 100 V, 50 and 60 Hz Australia 240 V, 50 and 60 Hz Universal 115 V/230 V, 50 and 60 Hz

* UL listing applies to BC190/808 with UL listed line plug adapter for

North America. The 230 V rating of the BC190/808 is not for use in North America. For other countries, a line plug adapter complying with the applicable National Requirements must be used.

Voltage Probe Set (Red), designed for use with the Fluke ScopeMeter 190 series test tool.

The set includes the following items (not available separately):

• 10:1 Voltage Probe (red)

• 4-mm Test Probe for Probe Tip (red)

• Hook Clip for Probe Tip (red)

• Ground Lead with Hook Clip (red)

• Ground Lead with Mini Alligator Clip (black)

• Ground Spring for Probe Tip (black)

BC190/801 BC190/803 BC190/804 BC190/806 BC190/807 BC190/808

VPS200-R

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Item Ordering Code

Voltage Probe Set (Gray), designed for use with the Fluke ScopeMeter

VPS200-G

190 series test tool.

The set includes the following items (not available separately):

• 10:1 Voltage Probe (gray)

• 4-mm Test Probe for Probe Tip (gray)

• Hook Clip for Probe Tip (gray)

• Ground Lead with Hook Clip (gray)

• Ground Lead with Mini Alligator Clip (black)

Test Lead Set (red and black)

Accessory Set (Red)

TL75

AS200-R

The set includes the following items (not available separately):

• Industrial Alligator for Probe Tip (red)

• 2-mm Test Probe for Probe Tip (red)

• Industrial Alligator for Banana Jack (red)

• 2-mm Test Probe for Banana Jack (red)

• Ground Lead with 4-mm Banana Jack (black)

Accessory Set (Gray)

AS200-G

The set includes the following items (not available separately):

• Industrial Alligator for Probe Tip (gray)

• 2-mm Test Probe for Probe Tip (gray)

• Industrial Alligator for Banana Jack (gray)

• 2-mm Test Probe for Banana Jack (gray)

• Ground Lead with 4-mm Banana Jack (black)

Maintaining the Test Tool Parts and Accessories

Item Ordering Code

Replacement Set for Voltage Probe

The set includes the following items (not available separately):

• 2x 4-mm Test Probe for Probe Tip (red and gray)

• 3x Hook Clip for Probe Tip (2 red, 1 gray)

• 2x Ground Lead with Hook Clip (red and gray)

• 2x Ground Lead with Mini Alligator Clip (black)

• 5x Ground Spring for Probe Tip (black)

Table 2. Users Manuals

Item Ordering Code

Getting Started Manual (English)

Getting Started Manual (German)

Getting Started Manual (French)

Getting Started Manual (Spanish)

Getting Started Manual (Portuguese)

Getting Started Manual (Italian)

Getting Started Manual (Chinese)

Getting Started Manual (Japanese)

Getting Started Manual (Korean)

Getting Started Manual (Russian)

CD ROM with User Manual (all languages)

4822 872 30701

RS200

4822 872 30702

4822 872 30703

4822 872 30704

4822 872 30705

4822 872 30706

4822 872 30707

4822 872 30708

4822 872 30709

4822 872 30743

4022 240 12370

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Optional Accessories

Item Ordering Code

Software & Cable Carrying Case Kit

Set contains the following parts:

Optically Isolated USB Adapter/Cable

Hard Carrying Case

FlukeView® ScopeMeter® Software for Windows®

Optically Isolated USB Adapter/Cable OC4USB

Optically Isolated RS-232 Adapter/Cable PM9080

Hard Case C190

Soft Case C195

Current Shunt 4-20 mA CS20MA

Print Adapter Cable for Parallel Printers PAC91

SCC190

OC4USB

C190

SW90W

Optional Service Manual

Item Ordering Code

Service Manual (English) 4822 872 05391

Fluke ScopeMeter 192B, 192C, 192C/S, ScopeMeter 196B, 196B/S User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual