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Summary of Contents for Clinton FL-8A
- Page 1 Model FL-8A Portable Cable Fault Locator Instruction Manual Clinton Instrument Company 295 East Main Street Clinton, CT 06413 USA Telephone: 860.669.7548 Fax: 860.669.3825 www.clintoninstrument.com...
- Page 2 Rev D 2/15...
- Page 3 To meet the needs of these applications, Clinton has developed the Model FL-8A, a battery operated cable fault locator that can be used on site to accurately pinpoint opens and shorts in these cables. Built to withstand a demanding Sample display screens environment, the unit performs a quick, automated test.
- Page 4 ANGULAR: ±1 ~ PHONE: (860) 669-7548 FAX: (860) 669-3825 INSTRUMENT CO. SIZE SHEET UNLESS OTHERWISE NOTED tlane 295 East Main St. • Clinton, CT 06413 USA • Tel: 860.669.7548 • Fax: 860.669.3825 • www.clintoninstrument.com Specifications subject to change without notice. 11/11 EN...
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Page 5: Table Of Contents
Installation ..........................4 Definitions ..........................5 FL-8A Controls ........................7 Settings Menu .......................... 8 Testing Large Cables with the FL-8A ................13 Performing a Shorts Test ..................... 14 Performing an Open Tests ....................16 Performing a Hi-Pot Test ....................18 Calibration .......................... -
Page 7: Safety
Although the high voltage output of the FL-8A is not in itself capable of delivering a truly dangerous shock, a stored charge in the cable can, if proper safety precautions are not taken. - Page 8 Risk of electric shock symbol. Earth (ground) symbol. Environmental Conditions The Model FL-8A Cable Fault Locator is designed to be safe under the following conditions: • Altitude to 2000 m. • Temperatures from 5ºC to 40ºC.
- Page 9 Model FL-8A Portable Cable Fault Locator The Clinton Instrument Company certifies that this equipment met its published specifications at the time of shipment. Clinton further certi- fies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute’s calibration facility.
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Page 10: Installation
Installation Unpacking The following items are included in the shipment: • FL-8A Cable Fault Locator, with a set of 3 test probes (red, blue and green) and power cord attached • 91785 FL Test Box • (3) 92100 Probe Clip Assemblies (other sizes available) •... -
Page 11: Definitions
Resistance is inversely proportional to the cross-sectional area of the conductor, so when the diameter of the conductor is doubled, the resistance declines 50 percent. FL-8A tests for metallic shorts are accurate on conductors with loop resistances of 50 milliohms or greater. Tests for high voltage shorts are effective on conductors with resistances of 200-250 milliohms or greater. - Page 12 Model FL-8A Portable Cable Fault Locator There may be multiple faults in the cable, the cable may have low loop resistance, or the fault is judged to be close to either end. Standard The test is considered good, with good results.
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Page 13: Fl-8A Controls
ON the display. Safety buttons Located on each side of the FL-8A front panel, the safety buttons must be held in during a shorts or hi-pot test. This is a safety feature that prevents the operator from touching the charged test cable during a test. -
Page 14: Settings Menu
Settings Menu Test parameters are found on the touch screen Settings menu. They are saved in memory even when the FL-8A is off. To view or change test parameters, turn on the FL-8A power switch, which is located on the front panel. - Page 15 Set Date and Time If printed report information with date and time is required, enter the current date and time. The FL-8A will retain this setting in memory, even when it is turned OFF. FL-8A Instruction Manual - Page 9...
- Page 16 The full report may be printed. When the setting is OFF, the FL-8A performs only a partial test, finding the distance of the short from the red probe and then pausing to display a report.
- Page 17 You may press BACK to terminate the test, but the test’s accuracy is, at this point, unknown. If you instead press NEXT, the FL-8A will then proceed to ind the distance of the short from the red probe. A summary screen showing the open’s location from the red and blue probes, as well as the rated accuracy of the test and the suggested trim area, will display.
- Page 18 However, this is not recommended without the advice of a Clinton technician. Lock Test Frequency When this setting is ON, the FL-8A will not prompt the user to enter a test frequency before the Opens test. The default setting is ON. Opens Start Frequency This setting is found on Page 2 of the Opens Parameters menu.
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Page 19: Testing Large Cables With The Fl-8A
If conductors are too large to insert into the probes, special attention must be paid to insure that proper connections are made. Poor connec- tions can be dangerous to personnel. Additionally, the FL-8A graphics display may not function correctly due to excess electrical noise created by improper grounding. -
Page 20: Performing A Shorts Test
Discharge all conductors when it is no longer attached to the FL-8A. of the test cable prior to connecting to the FL-8A to remove any stored charge from a previous operation. A stored charge in the cable can be lethal. - Page 21 8. The touch screen will display, “Hold Safety Switches.” Press the safety switches as directed. 9. The FL-8A touch screen will indicate test progress as it tries to locate the fault. The yellow Test in Progress light will flash, and the red High Voltage Present light will go on, indicating that there is high voltage on the test cable.
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Page 22: Performing An Open Tests
FL-8A. Discharge all conductors of the test cable prior to connecting to the FL-8A Fault Locator to remove any stored charge from a previous operation. A stored charge in the cable can be lethal. - Page 23 The yellow Test in Progress light will flash, and the FL-8A touch screen will indicate that the test has begun. 7. If the Full Test setting is OFF, the first test result screen, indicating the fault distance from the blue probe, will appear.
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Page 24: Performing A Hi-Pot Test
FL-8A. Discharge all conductors of the test cable prior to connecting to the FL-8A to remove any stored charge from a previous operation. A stored charge in the cable can be lethal. - Page 25 8. The touch screen will display, “Hold Safety Switches.” Press the safety switches as directed. 9. The FL-8A touch screen will indicate test progress as it tries to locate the fault. The yellow Test in Progress light will flash, and the red High Voltage Present light will go on, indicating that there is high voltage on the test cable.
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Page 26: Calibration
DC multimeter. 5. Connect the green ground probe to earth ground. Check that the ground connection on the rear of the FL-8A is secure and connected to earth ground. Press NEXT. 6. The red High Voltage Present light on the FL-8A front panel will illuminate, indicating that there is high voltage on the red and blue probes. - Page 27 Model FL-8A Portable Cable Fault Locator Calibrate the FL-8A Voltage Reading 10. As directed on the touch screen, use the DOWN ADJ and UP ADJ buttons so that the Voltage Reading on the touch screen displays 1.0 kV. Press NEXT.
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Page 28: Maintenance
Model FL-8A Portable Cable Fault Locator Maintenance Fuses The fuses in this equipment are not expected to fail in normal operation. Upon failure, they will reset themselves on the next power cycle. Battery The battery should be charged after every 8 hours of use, or earlier if the indicator is at 1 bar or below. -
Page 29: How To Use The 91785 Fl Test Box
The 91785 FL Test Box is used to simulate three types of cable faults (Open, Metallic Short and High Voltage Short). The FL Test Box is useful in determining if the FL-20A or FL-8A is operating properly. Note the metal terminals, two on the left and right sides and three in the center. - Page 30 Model FL-8A Portable Cable Fault Locator Testing for Metallic Shorts Accuracy To perform a Metallic Shorts Test, connect the probes to the Shorts ter- minals as shown. Note the Green ground probe connects to the termi- nal labeled “METALLIC SHORTS”. Run the Shorts Test on the cable fault locator at a voltage of at least 1kV.
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Page 31: Cable Capacitance Chart
Model FL-8A Portable Cable Fault Locator FL-8A Instruction Manual - Page 25... -
Page 32: Cable Loop Resistance Chart
Model FL-8A Portable Cable Fault Locator Page 26 - FL-8A Instruction Manual... -
Page 33: Replacement Parts
Model FL-8A Portable Cable Fault Locator Replacement Parts Note: Printed circuit boards are carefully constructed and calibrated at the factory. Components are not supplied for field repair of boards. Please return faulty circuit boards to the factory for repair and cali- bration. -
Page 34: Troubleshooting
When a test takes a very long time and the report screen says your accu- racy is low, you may have a multiple fault condition. The FL-8A will find the first fault so it can be cut out and the cable retested to locate a second short. -
Page 35: Electric Shock Considerations For Electric Vehicle Charging Systems
Model FL-8A Portable Cable Fault Locator Electric Shock Considerations for Electric Vehicle Charging Systems By Walter Skuggevig, Research Department, Melville, reprinted courtesy of Underwriters Laboratories Inc. This technical paper was presented in December 1993 at the National Conference on Electric Vehicle Infrastructure, sponsored by the Electric Power Research Institute, Arizona Public Service, Salt River Project, and the Electric Vehicle Association of the Americas. - Page 36 Model FL-8A Portable Cable Fault Locator Perception and Startle Reaction Cont. kHz and higher, it can be estimated that the threshold of startle reaction is approximately equal to 1 mA per kHz of frequency. For example, if a specific level of reaction from current at 1 kHz occurs at 1 mA, then a similar level of reac- tion would occur from 10 mA at 10 kHz.
- Page 37 Model FL-8A Portable Cable Fault Locator Ventricular Fibrillation Cont. A general limit that has been used by UL for a number of product categories including ground-fault circuit-inter- rupters is described as I = 20 T -0.7 for bursts of 60-Hz current down to 20.9 milliseconds.
- Page 38 Model FL-8A Portable Cable Fault Locator Burns Cont. skin tissue. This limit becomes important at frequencies over several kHz, because limits addressing other hazards would not automatically prevent burns. There are a number of commonly used techniques to reduce the risk of electric shock. Each has attributes that render it more effective for certain applications.
- Page 39 Model FL-8A Portable Cable Fault Locator Ground-Fault Circuit-Interrupter A ground-fault circuit-interrupter (GFCI) monitors the difference in the current flowing between the power con- ductors serving a load. If the difference exceeds a prede- termined level, it is assumed that the difference in current could be flowing through a person’s body, and the GFCI...
- Page 40 Model FL-8A Portable Cable Fault Locator Shielding Shielding can be used to limit voltages that can appear on accessible conductive parts during fault conditions when products generate high voltages internally. A properly con- nected shield will prevent voltage on the accessible con- ductive parts from exceeding line voltage during fault conditions.
- Page 41 Model FL-8A Portable Cable Fault Locator Interlocks and “Smart” Circuits reduce the risk of electric shock to an acceptable level. The choices should be appropriate, feasible and consistent with today’s technology. The National Electrical Code contains requirements for the installation of electrical products, but product safety...
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Page 42: Warranty
The Clinton Instrument Company shall not be liable for errors con- tained herein or for incidental damages in connection with the furnish- ing, performance, or use of this material.
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