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Published byAubrey Franklin Modified over 9 years ago
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Ohmmeters pages 75-80
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V A x R
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How much resistance in a load if the amperage is:.5 amps.5 amps
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How much resistance in a load if the amperage is: 3 amps
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How much resistance in a load if the amperage is: 250 amps
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How much resistance in a load if the amperage is:.004 amps
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Ohmmeters pages 75-80
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Ohmmeters are self powered
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Ohmmeters are used to test the resistance in components and they must be disconnected from any other power source.
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Most common scales n 200 n 2K n 20K n 200K n 2M n 20M
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Manual Ranging
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Auto Ranging
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Out of range indication if the resistance is higher than the scale you are on. UL OUCH 3
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The Meter will round off the reading if you are on too high of a scale. This can make your readings somewhat inaccurate
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Circuit board assignment
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Ohmmeters pages 75-80
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Ohmmeters are used to: n Test continuity in switches
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Continuity Test n Will beep with approx. 30 ohms or less
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Ohmmeters are used to: Test continuity in mercury switches
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Ohmmeters are used to: n Test continuity in fuses
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Ohmmeters are used to: Test the continuity in resisters of all types Example Throttle position sensor
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Ohmmeters are used to: Test the resistance (to specifications) of Throttle Position Sensors
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Ohmmeters are used to: Test Potentiometers of all types
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Ohmmeters are used to: test the continuity of temperature switches
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Ohmmeters are used to: Test the resistance (to specifications) of a thermistor
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Ohmmeters are used to: Test the resistance of Solenoids
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Ohmmeters are used to: Test the continuity and or resistance of relays
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See Ya!
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