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Autoranging fault locator
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Table of Contents
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How the Leakseeker Works
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Normal Testing
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Getting Started
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But What if the Highest Pitch Can’t be the Bad Part?
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Using the Hot/Cool Thermal Test Method
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3-Wire Testing
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Tutorial
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In Case of Trouble
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ELECTRONIC DESIGN SPECIALISTS
LeakSeeker 89 AutoRanging Fault Locator
OPERATIONS MANUAL
Rev 8/28/2020
Please read this manual completely before trying to use the LeakSeeker for the first
time. There is a short tutorial on page 6 that will guide you on your way to the "Ah-
Hah!" moment of understanding. Skipping the tutorial will make your understanding
far more difficult. Watching the videos at
www.eds-inc.com/leak.html
is advised.
This unit is designed to be used on a non-powered circuit, as it supplies its own precise
test voltages. Be sure power is disconnected from the unit under test, or your
LeakSeeker may be damaged!
It is advised to check the Technical Assistance page at
for any last-
www.eds-inc.com
minute additions to this manual and to answer frequently asked questions.
1
Table ofContents
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Table of Contents
Summary of Contents for EDS LeakSeeker 89
- Page 1 ELECTRONIC DESIGN SPECIALISTS LeakSeeker 89 AutoRanging Fault Locator OPERATIONS MANUAL Rev 8/28/2020 Please read this manual completely before trying to use the LeakSeeker for the first time. There is a short tutorial on page 6 that will guide you on your way to the “Ah- Hah!”...
- Page 2 Preliminary The LeakSeeker model EDS-89 will locate a shorted or leaky component or any other shorted condition (such as a pinched wire or solder bridge) with a short resistance value from zero to 300 ohms, to the exact spot on a pc board. If the unit has multiple pc boards, LeakSeeker will first identify which board contains the defective component, then will guide the technician directly to the location of the defective component on that board.
- Page 3 normal testing methods first. First, some important notes that you need to remember: LeakSeeker recalibrates itself automatically to a new range as you get closer to the defect, as ohms get lower. If you get further from the short and resistance goes higher, a lower pitch of the tone, and eventually no tone at all and the lowest red indicator will be the only indication.
- Page 4 instance is when you suspect an active short, where a supply is pulled down by a component that does not show shorted with your ohmmeter. This can happen when, for example, a component shorts, but is powered through a diode. Although your ohmmeter cannot measure past the diode, the LeakSeeker (and CapAnalyzer) can.
- Page 5 If you accidentally touch the probe to a wrong pad not on the shorted circuit, like maybe ground, and LeakSeeker notices the huge change, it intentionally waits a second before accepting the huge change and recalibrating. The delay is intentional; if you accidentally touched the wrong pad (like a ground), this delay gives you the time to change your mind as long as you lift off of the pad before the WAIT LED comes on and recalibration is complete.
- Page 6 solder wire tip, plug it into the REF+ port, and solder the tip to any pad along the shorted trace. The test mode switch remains in the NORMAL position, which joins the REF+ and PROBE ports together. Press the RESET button and wait for a stable reading. Higher resistance defective components are always thermally responsive.
- Page 7 longer cause the highest pitch to change. Therefore, be sure to notice the exact location at which point the readings no longer change as you pass the defect. The exact location of the first pad that has the highest pitch will be the exact location of the defect. All pads beyond this point will have the same pitch as the first pad of the highest pitch.
- Page 8 Original shipping costs will be refunded only if the unit has a factory defect. 2: All EDS products are unique and some effort is required to learn to use an unfamiliar new device. It is expected that you attempt to use and learn this product for at least two months, and to read and follow the directions in the owner’s manual.
- Page 9 Moxon Street Barnet Herts GB EN55TS UK Description of Equipment: Product Name: LeakSeeker 89 Model Number: EDS-89 Designed and built in the U.S.A. Electronic Design Specialists, Inc. hereby declares that the equipment specified above conforms to the protection requirements of the above named Directive(s) and Standards.
- Page 10 K W W S Z Z Z F H P D U N F R P 5 R + 6 S G I K W W S Z Z Z F H P D U N F R P 5 R K V I L Q D O S G I www.eds-inc.com...
