Volt Ohm Test
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Triplett 310-C Analog Hand Sized Volt-Ohm Millimeter with 18 Ranges and Polarity Reversing Switch for DC Ranges, 600V AC/DC List Price: $159.00 Sale Price: $135.19  |
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18 Ranges and Functions. AC/DC Voltage to 600V. DC Current to 0.6A. Resistance to 20 milliohm. Decibel function for audio work. Polarity Reversing Switch. Greater Sensitivity on AC Volts. Drop Resistant, High-Impact Case... |
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Triplett 310 Analog Hand Sized Volt-Ohm Meter with 18 Ranges and Functions, 1200V AC/DC List Price: $129.00 Sale Price: $111.99 |
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18 Ranges and Functions. AC/DC Voltage to 1200V. DC Current to 0.6A. Resistance to 20MO. Drop Resistant, High-Impact Case. Diode Overload Protected Meter. Fused Resistance Ranges. Single Enclosed Range Switch... |
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Triplett 630 Classic Volt-Ohm Millimeter with 25 Ranges and Functions, 600V AC List Price: $339.00 Sale Price: $282.92 |
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Single range switch to help reduce chance of operator error. Diode overload protection and 2 fuse arrangement. Mirrored scale to reduce parallax error. Decibel function for audio work. All ranges are fuse protected... |
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Triplett 60 Ruggedized Volt-Ohm Millimeter with 28 Ranges and Functions, 1000V AC/DC List Price: $399.00 Sale Price: $333.89 |
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With our unique 3 fuse protection (including 2A/1000V fuse) the Model 60 is, quite possibly, the best protected VOM in the industry. Diode overload protection and 2 fuse arrangement. Mirrored scale to reduce parallax error... |
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Triplett 1101-B Compact Digital MultiMeter with Bright, White Backlit Display and Temperature Test, 600V AC/DC List Price: $39.95 Sale Price: $33.96 |
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3-1/2 Digit with 1999 max. reading. Bright, White Backlit Display. AC/DC Voltage to 600. 19 Total Ranges/Functions. DC Current to 10A. Temperature Test from -4° to 1832° F. Resistance Ranges from 200 Ohms to 2M Ohms... |
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Palm-Size Handheld Digital Multimeter - DT830B List Price: $14.99 Sale Price: $3.77 |
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Model: DT830B - Digital AC/DC multimeter with diode and transistor test function. Specifications: DCV:0-200mV/0.25%-2-20-200-1kV/0.5% ACV:0-200V-750V/1.2% DCA:0-200u-2m-20m/1.0%-200mA/1.2%-10A/2.0%Fused... |
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Lepai Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply List Price: $29.99 Sale Price: $21.00 |
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This Lepai Tripath-based audio amplifier is ideal for both home and car audio applications. Its small size and clean 20 watt output makes it perfect for most any auto or home audio project or DIY application where space is limited. |
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Digital Amp Ohm Volt Meter Ac Dc Voltmeter Multimeter List Price: $19.95 Sale Price: $2.75 |
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Get accurate readings for DC voltage, DC current, AC voltage, resistance, transistor test, diode test, and battery test. Easy-to-read 3-1/2 digit LCD readout, positive set selector switch, and 32" leads... |
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Equus 3310 Hands-Free Digital Multimeter List Price: $27.84 Sale Price: $14.50 |
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Equus Hands-free Digital Multimeters are designed to troubleshoot a variety of automotive and household electrical problems. They include test lead holders for hands-free testing. These digital multimeters are safe as well as accurate and are easy to use. |
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DC AC Amp Volt Ohm Testing Voltmeter Ammeter Ohmmeter Digital Multimeter Sale Price: $17.50 |
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AC Voltage (V): 200m, 2, 20, 200, 600; DC Voltage (V): 200m, 2, 20, 200, 600; AC Current (A): 20m, 200m, 20; DC Current (A): 2m, 20m, 200m, 20; Other Measure Function: Diode & On-Off, hFE; Overload Protection: Fuse; Main Color: Black & Orange; Mateiral: Plastic & Metal; Test Leads Total Length: ~71cm/ 28"; Multimeter Size: 20 x 9... |
Is there a way to test an alternator with a DVOM (digital volt ohm meter) to see if it's functioning properly?
I think my alternator on my 1986 Mercedes Benz 300E is bad, but I don't want to remove it and take it to an autoparts store to have it tested because it is in a difficult location to remove. How can I test it with a DVOM to see if it's working properly? What are the steps and what should the readings be? Thank you.
Wow, you all really do know your stuff. Thank you for all the great answers.
Yes, their certainly is. The alternator has to generate more voltage than the battery has at rest, in order to drive the reactions that charge the battery.
So test the battery first. That should be about 12.5 volts. When you start the engine, the voltage should jump up to about 13.5 at the battery itself. This is a good sign. If it's more, like 14 volts, that's okay too. If it's 15, it's too high.
You will not be able to tell how many amps the alternator will be putting out, but you can at least turn on the headlights, wipers, and the vent blower on full speed, and maybe get somebody to hit the brakes to get those lights on. If it can carry all that at idle and not drop below 12.5, it's doing a reasonable job of pulling those loads.
