Textron Greenlee CableScout TV220 Instruction Manual

Metallic time-domain reflectometer for cable tv

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INSTRUCTION MANUAL

TV220 CableScout

™

Metallic Time-Domain Reﬂectometer

for Cable TV

Read and understand all of the instructions and safety information

in this manual before operating or servicing this tool.

52040565 REV 1

10/11

1.800.561.8187

information@itm.com

www.

.com

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Page 1 TV220 CableScout ™ Metallic Time-Domain Reﬂectometer for Cable TV Read and understand all of the instructions and safety information in this manual before operating or servicing this tool. 52040565 REV 1 © 2011 Greenlee Textron Inc. 10/11 1.800.561.8187 information@itm.com www. .com...
Page 2: Table Of Contents
Table of Contents Preface ..........................4 Description, Safety, and Purpose of this Manual ............4 Warranty ........................4 Important Safety Information ....................5 How to Use this Manual ....................... 7 Chapter 1. TestWizard....................... 11 Chapter 2. Front Panel Controls ..................15 Controls, Indicators, and Connectors .................
Page 3: Preface
Warranty Greenlee Textron Inc. warrants to the original purchaser of these goods for use that these products will be free from defects in workmanship and material for one year. This warranty is subject to the same terms and conditions contained in Greenlee Textron Inc.’s standard one- year limited warranty.
Page 4: Important Safety Information
Contact with live circuits could result in severe injury or death. Fire hazard: Do not operate this tool in an explosive atmosphere. Failure to observe this warning could result in severe injury or death. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 5 Important Safety Information Electric shock hazard: Do not expose the battery to ﬁre or intense heat. Do not incinerate the battery. Do not open or mutilate the battery. Do not charge the battery in a gas-tight container. Do not short the battery terminals. Avoid contact with released electrolyte, which is corrosive and may damage eyes, skin, and clothing.
Page 6: How To Use This Manual
In this manual, the word waveform refers to the image of a test cable displayed on the LCD. Because of different instrument conﬁgurations and operating setups, the example screens printed in this manual may not be identical to screens displayed by your instrument. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 7: Chapter 1. Testwizard
Chapter 1. TestWizard TestWizard is the quickest and easiest way to test a cable. You press one button, and the TV220 asks you some simple questions and then automatically tests the cable and displays a waveform with events marked. Access TestWizard from any display in the instrument by simply pressing TESTWIZARD on the front panel.
Page 8 For more information on TestWizard and for detailed instructions on setting up the TV220 to test a cable in Auto TDR and Manual TDR, refer to Chapters 2–4. To save or load the waveform from your test cable, refer to Chapter 5 for detailed instructions. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 9: Chapter 2. Front Panel Controls
Chapter 2. Front Panel Controls Controls, Indicators, and Connectors The TV220 controls are described brieﬂy in this chapter. More detailed information is available in the descriptions of each measurement and function. The TV220 maintains consistency in all operating modes. If a control is not available in a particular mode of operation, the softkey is blank.
Page 10: Controls
2) select a menu item, and 3) turn functions on and off. Softkey explanations are found within each description of the display types in this manual, or by pressing HELP and then the softkey. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 11: Connectors
Front Panel Controls Connectors Figure 2-2: Connectors 1. AC Adapter/Charger: This connector is for the battery charger/adapter. 2. 75 Ω: This connector is a 75 Ω, F-type for connecting to the cable under test. 3. Type B USB Port: Use this connector to connect the TV220 to a computer to download test data.
Page 12: Chapter 3. Setting Up The Instrument
Chapter 3. Setting Up the Instrument Connecting the Cable Select the appropriate connector adapter and/or jumper cable from the TV220 accessory package. The standard accessories supplied are shown below. F-type female to BNC male Jumper cable, F-type male to F-type male F-type female to F-type female BNC female to...
Page 13: Setup Menu
Defaults 2. Press Setup to select the cable type or 3. Press Test to use a previous setup. Use (Up/Down) to adjust contrast. Setup TV220 Test Lesson Figure 3-1: Main Display Greenlee / A Textron Company 1.800.561.8187 information@itm.com www. .com...
Page 14 Setting Up the Instrument From the Main Display, you can: Press TV220 Lesson for a tutorial about using the TV220. Press Reset to Defaults to restore factory defaults if instrument settings have been changed and you want to reset them. Connect your cable and press Test to display the waveform for your test cable if you do not need to change settings.
Page 15 You can select a factory cable type from this list and copy it to the User List. 1. Press to highlight the factory cable type. 2. Press Copy to User List to copy the selected cable type to the User List. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 16 Setting Up the Instrument Creating a Custom Cable Type If the exact cable type you want is not on the Factory List, press to select one that is most similar to it, and then press Create Custom Cable to display the Setup – Create Custom Cable Type for User List menu (Figure 3-4).
Page 17 4. Press to add highlighted characters to your cable name. 5. When ﬁnished, press OK to return to the previous display, which shows the new text on the highlighted line (Figure 3-6). Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 18 Setting Up the Instrument Setup – Create Custom Cable Type for User List Loss(dB)/100m @ 500 MHz Cable Name < Current Settings > 14.27 0.850 NEW CABLE 15.48 0.820 Main Use (Up/Down) to select cable to edit. Display Press to create new cable. Return to Test Copy to...
Page 19: More Settings
High-pass ﬁlter in Auto TDR – choose the high-pass ﬁlter setting. The high-pass ﬁlter reduces noise for a cleaner waveform and is used when the gain is at a high setting. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 20 Setting Up the Instrument Smoothing – choose the smoothing setting. Smoothing reduces waveform noise by averaging test results over time. Power-on Test type – choose the test type that is selected when the TV220 is turned on. (Refer to “Test Types” in this chapter.) Auto event locator threshold –...
Page 21: Test Types
When you are ﬁnished making your selection, press Return to Test to display the waveform for the test you selected. For more detailed explanations and illustrations of the different test types and for information on Auto and Manual TDR, refer to Chapter 4. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 22: Chapter 4. Testing A Cable
Chapter 4. Testing a Cable You can choose from three ways to test a cable: TestWizard, Auto TDR, and Manual TDR. TestWizard is the quickest and easiest method. In Auto TDR, most settings are controlled automatically by the instrument. Manual TDR is for the expert user, and all settings are controlled by the user.
Page 23 Find 3 largest events Find all events Main Use (Up/Down) to select the cable span you are testing Display then press (Next). Exit Prev Next Figure 4-3: TestWizard – Choose Event Type Greenlee / A Textron Company 1.800.561.8187 information@itm.com www. .com...
Page 24 Testing a Cable 6. Use to select the appropriate level of analysis, as follows: If the system you are testing is not working at all, select FIND LARGEST EVENT. If the system is working poorly and you want to ﬁnd the most signiﬁcant problem areas, select FIND 3 LARGEST EVENTS.
Page 25: Auto Tdr
2. From this menu, select your cable type, add the proper cable type, or create a custom cable type using a cable type from the Factory List as an example. Refer to “Choosing the Cable Type” in Chapter 3 for detailed instructions on adding and creating cable types. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 26 Testing a Cable 3. Next, press Test Type to display the Setup – Test Type menu to select Auto TDR (Figure 4-6). Setup – Test Type Test Mode TEST SAVED WAVEFORM TEST / SAVED WAVEFORM TEST / DIFFERENCE / SAVED WAVEFORM INTERMITTENT Main Use (Up/Down) to select test type.
Page 27 After pressing Zoom On, press Less Cable or More Cable to zoom further in or further out along the cable. Less Cable and More Cable decrease and increase the waveform distance view one range setting for each press of the softkey. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 28 Testing a Cable Events On/Off turns the Auto Event Locator on and off. Auto Event Locator enables the TV220 to automatically detect and mark events. The Auto Event Locator Threshold determines the severity of the events that are located, marked, and displayed. To select the desired event threshold, go to the Setup –...
Page 29 In order to get an accurate RL or ERL measurement, you need to be able to see the entire event on the display. 4. Use to lower the gain value until the entire event (from top to bottom) is displayed. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 30 Testing a Cable Saved Waveform (Auto TDR) To select a test type other than TEST, go to the Setup – Test Type menu (Figure 4-6). to select the test type. To display a saved waveform, follow these steps: 1. From the Setup – Test Type menu, use to select SAVED WAVEFORM.
Page 31 Test settings are those of the saved waveform. Return- loss values apply only to the current test waveform. Softkeys that affect the waveforms are not available just as in the Saved waveform display. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 32 Testing a Cable Test/Difference/Saved (Auto TDR) To display the current test waveform, a saved waveform, and a waveform that shows the difference between the test and saved waveforms, follow these steps: 1. From the Setup – Test Type menu, use to select TEST/DIFFERENCE/SAVED WAVEFORM.
Page 33 The minimum and maximum waveforms persist until a new test is started, and may be updated if any new minimum or maximum data points are acquired. All the softkeys available in Auto TDR Test are available on this display. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 34: Manual Tdr
Testing a Cable Manual TDR Manual TDR is for the expert user who wants full control over instrument settings. 1. To test a cable in Manual TDR, press Setup from the Main Display to display the Setup – Choose Cable Type (User List) menu (Figure 4-5). 2.
Page 35 To deﬁne a new cable type using the new Vp value, follow the directions given under “Choosing the Cable Type” in Chapter 3. Pulse can be increased and decreased using . Available pulse widths are 1 ns, 5 ns, and 25 ns. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www. .com...
Page 36 Testing a Cable Choosing Test Settings in Manual TDR Pulse width is the time duration of the pulse transmitted by the TV220. Longer pulses are useful for testing long lengths of cable. Using a long pulse results in a cleaner waveform, but less resolution.
Page 37 All test settings are from the saved waveform, but you can change the Vp value on the screen using . This does not affect the Vp value stored in the waveform ﬁle. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 38 Testing a Cable Test/Saved Waveform – Manual TDR Display the current test waveform side by side with a saved waveform the same way as in Auto TDR, described under “Test/Saved Waveform – Auto TDR” in this chapter. Figure 4-16 shows test and saved waveforms in Manual TDR. Test/Saved (Manual TDR) feet Vp: 0.820...
Page 39 You can also change the Vp value using . Changing the Vp value affects both the test and saved waveforms. Span and Pulse softkeys are not available from this display. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.
Page 40 Testing a Cable Intermittent (Manual TDR) Display an intermittent test waveform the same way as in Auto TDR, described in “Intermittent Test – Auto TDR” in this chapter. Figure 4-18 shows an intermittent test waveform in Manual TDR. Intermittent (Manual TDR) feet Vp: 0.769 GAIN: 12 dB...
Page 41: Chapter 5. Save/Load
Chapter 5. Save/Load The TV220 allows you to save the current waveform data and to load (preview) saved waveforms. Data ﬁles can also be transferred to the trace viewer program or an external computer. Save When you ﬁnish testing a cable and want to save the waveform data for later use, press the Save/Load softkey to display the Save/Load menu (Figure 5-1).
Page 42 4. When ﬁnished, press OK to return to the previous display, which shows the new text on the highlighted line. To delete a saved waveform, use to highlight the waveform. Press the Delete softkey. A conﬁrmation display allows you to verify or abort the deletion. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www. .com...
Page 43: Save Load Preview
Save/Load Save/Load Preview Save/Load Preview feet Vp: 0.820 GAIN: 12 dB PW: 1 ns ERL: 23 dB DIST: 40.2 ft Use (Up/Down) to change Gain. Previous Menu Figure 5-3: Save/Load – Preview To check that a waveform is the one you want to test or load, use to highlight the waveform, and then press the Preview softkey.
Page 44: Transferring A File To A Pc
Smoothing is 3 (Go to Setup – More Settings to change) Setup Marker On Vertical Save/ Span Pulse Position Load Marker Off Figure 5-4: Transferring a File to the Trace Viewer Program on a Computer Greenlee / A Textron Company 1.800.561.8187 information@itm.com www. .com...
Page 45: Chapter 6. Maintenance
Chapter 6. Maintenance For information about using your TV220, questions on particular applications, or to send your instrument in for service, refer to the telephone numbers listed under “Warranty” in the Preface section of the manual. Error Messages Most error messages are the result of an internal failure, either hardware or software. If any error message is displayed, write down the error message and include it when you call or send the instrument in for service.
Page 46: Appendix A. Speciﬁcations, Options, And Accessories
Appendix A. Speciﬁcations, Options, and Accessories Speciﬁcations Physical Size: 9 cm x 25 cm x 30 cm (3.5" x 10" x 12"), nominal Weight: 2.3 kg (5.1 lb), nominal Environmental Temperature: Operating: -10 °C to 40 °C (11 °F to 104 °F)* Non-operating: -20 °C to 60 °C (-4°F to 140 °F)** Package Product Shock/Vibration/Drop, Non-operating: Exceeds industry standards for immunity to damage during shipping...
Page 47 Battery Saver: Power off: 5 to 30 minutes or always on, user selectable Backlight: 10 s to 10 min or always on, user selectable Return Loss: Automatic at cursor Resolution: 1 dB Greenlee / A Textron Company 1.800.561.8187 information@itm.com www. .com...
Page 48: Accessories
Speciﬁcations, Options, and Accessories Accessories Standard Part Number Accessory 52046851 Universal AC adapter/charger, 100–240 VAC, 12 VDC 2.5 A 52034774 AC adapter charger cable 52034532 Test cable, BNC female to alligator clips 52034945 Cable, USB A male to B male 52034786 Coaxial jumper cable, F-type male to F-type male 52034557...
Page 49: Appendix B. Glossary
Appendix B. Glossary Alternating Current: a method of delivering electrical energy by periodically changing the direction of the ﬂow of electrons in the circuit or cable. Even electrical signals designed to deliver direct current (DC) usually ﬂuctuate enough to have an AC component. Cable Attenuation See “Line Loss.”...
Page 50 This value is a ratio of the speed in the cable to the speed of light. This is always a number between 0 and 1. A velocity of propagation value of 0.50 indicates that the electrical energy moves through that particular cable at half the speed of light. Greenlee / A Textron Company 1.800.561.8187 information@itm.com www.

Textron Greenlee CableScout TV220 Instruction Manual

Preface

Important Safety Information

How to Use this Manual

Chapter 1. Testwizard

Chapter 2. Front Panel Controls

Chapter 3. Setting up the Instrument

Chapter 4. Testing a Cable

Chapter 5. Save/Load

Chapter 6. Maintenance

Appendix A. Speciﬁcations, Options, and Accessories

Appendix B. Glossary

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