How to Use Dorman 86608 Digital Multimeter

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Disclaimer: This video is for informational and educational purposes only and is not affiliated with, endorsed by, or sponsored by Dorman. All opinions expressed are solely those of the creator.

This video provides a comprehensive guide to using the Dorman 86608 multimeter, demonstrating its various test settings and functionalities.

Introduction to the Dorman 86608 Multimeter [00:10]: The presenter introduces the Dorman 86608 multimeter, outlining the video's purpose: to explain all its test settings. He also notes a common issue with the HF transistor port testing feature, stating its frequent unreliability across most meters [00:25].

Volts AC Setting [00:55]: The video begins by demonstrating the Volts AC setting, capable of measuring up to 600 volts AC. It highlights that for AC measurements, lead polarity is irrelevant due to the alternating nature of current flow [01:10]. The presenter advises starting at the highest range (600V) and gradually decreasing for improved resolution [01:34].

Amperage DC Setting [01:55]: The multimeter is primarily designed for DC amperage measurement. The presenter emphasizes correct port usage:

The common port is for voltage, ohms, and milliamps.
A separate port is designated for measuring larger currents (exceeding 200 milliamps) [02:10]. The video stresses performing current measurements in series and always starting with the 10 amp setting to prevent blowing the meter's fuse, particularly with unknown loads [03:31]. Smaller loads are then used to demonstrate measurements in the milliamp and microamp ranges, explaining how reducing the range enhances measurement accuracy [04:05].
Transistor Port (HF Testing) [06:13]: The presenter expresses skepticism regarding the built-in HF transistor testing port, noting its frequent unreliability across multimeters. He recommends using a dedicated multi-function tester for accurate transistor testing, as these can auto-recognize and label transistor terminals [06:21].

Continuity and Diode Settings [08:11]: The video demonstrates the continuity setting, which emits an audible tone when a circuit is complete. However, the presenter notes the poor quality of the included leads, leading to inconsistent tones, and advises purchasing better leads for reliable performance [08:36]. For diode testing, the meter accurately displays the voltage drop across the diode (ideally between 500 and 800 millivolts for a standard diode) and shows an open circuit when tested in reverse, indicating no backflow [09:21]. The meter's ability to illuminate an LED is also shown, though it doesn't measure the forward voltage [09:57].

Resistance Setting [10:30]: The resistance setting is demonstrated using resistors and various electrical loads like light bulbs and motors. The presenter advises starting with the largest range (mega ohms) and decreasing it for more precise readings [10:47]. He illustrates how a "one" displayed on the meter indicates an out-of-range measurement, often meaning the setting is too low for the resistance being measured [11:31]. Measuring resistance can be valuable for troubleshooting components, as an "open circuit" reading might indicate a broken component [12:45].

Volts DC Setting [13:05]: The video concludes with the Volts DC setting, crucial for automotive testing. It demonstrates measuring a 12-volt supply, emphasizing that the 20 Volts DC setting provides the most clarity and accuracy for typical automotive battery measurements [13:47]. The "Hold" button feature, which allows users to freeze a measurement on the display, is also demonstrated [14:43].

Backlight Functionality [14:58]: The presenter highlights a significant issue with the multimeter's backlight: when activated, the decimal place on the display disappears, hindering accurate readings.

Final Thoughts [15:29]: Despite some drawbacks, such as the backlight issue and being slightly overpriced, the Dorman 86608 offers a useful 200 microamp current setting.

Product description from seller:
Multimeter; Digital;

Test electrical circuits with confidence using this multi-function electrical tester. Made to test a variety of electrical parameters, it is constructed of quality materials to deliver reliable results

Durable construction - this electrical multi-tester is made from quality materials to ensure reliable results
Versatile shop tool - this multi-function tester can be used to confirm a variety of electrical system parameters
Precise results - this electrical tester has been calibrated to deliver dependable results for trustworthy diagnosis
Easy to use - this multi-function tester includes instructions for use

Видео How to Use Dorman 86608 Digital Multimeter канала Adventures In Your Own Garage