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techtalk:ref:tools159 [2018/12/16 18:10] – [Multimeter] hippysmacktechtalk:ref:tools159 [2024/01/24 22:39] (current) – hippysmack
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 [[:techtalk:menu|{{  :techtalk:gototechnicalmenu.jpg|}}]] [[:techtalk:menu|{{  :techtalk:gototechnicalmenu.jpg|}}]]
 ====== REF: Tools - 159 ====== ====== REF: Tools - 159 ======
-====== Multimeter ======+====== Multimeter (VOM) ======
 See also, [[techtalk:evo:elec01#evoelectrical_system|Electrical Basics]] in the Sportsterpedia. \\ See also, [[techtalk:evo:elec01#evoelectrical_system|Electrical Basics]] in the Sportsterpedia. \\
  
-Multimeters are extremely useful and are pretty hardy. \\+A multimeter or a multitester, also known as a VOM (volt-ohm-milliammeter), is an electronic measuring instrument that combines several measurement functions in one unit. ((https://en.wikipedia.org/wiki/Multimeter)) \\ 
 +A typical multimeter can measure voltage, current, and resistance. \\ 
 +Analog multimeters use a microammeter with a moving pointer to display readings. \\ 
 +Digital multimeters (DMM, DVOM) have a numeric display, and may also show a graphical bar representing the measured value. \\ 
 +Digital multimeters are now far more common due to their cost and precision, but analog multimeters are still preferable in some cases, for example when monitoring a rapidly varying value. \\  
 + 
 +A multimeter can be a hand-held device useful for basic fault finding and field service work, or a bench instrument which can measure to a very high degree of accuracy. ((https://en.wikipedia.org/wiki/Multimeter)) \\ 
 +They can be used to troubleshoot electrical problems in a wide array of industrial and household devices such as electronic equipment, motor controls, domestic appliances, power supplies, and wiring systems. \\ 
 + 
 +Multimeters are available in a wide range of features and prices. ((https://en.wikipedia.org/wiki/Multimeter)) \\ 
 +Cheap multimeters can cost less than US$10, while laboratory-grade models with certified calibration can cost more than US$5,000.  
 + 
 + 
 +Multimeters are extremely useful and are pretty hardy. ((sifty of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/146604-first-harley-1975-xl1000-caf%C3%A9-project/page42?t=1592463&page=42)) \\
 But using the wrong setting, wrong scale, or performing the wrong type of measurement will at best give meaningless results, and at worst smoke the meter. \\ But using the wrong setting, wrong scale, or performing the wrong type of measurement will at best give meaningless results, and at worst smoke the meter. \\
  
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     * The values may move a little, but generally they will fluctuate around a meaningful value if the contact point is solid.     * The values may move a little, but generally they will fluctuate around a meaningful value if the contact point is solid.
  
-|  [[techtalk:ref:trouble07#reftroubleshooting_-_07|Testing an oil pressure switch]]  | +|  See also [[techtalk:ref:svcproc30#reftroubleshooting_-_07|Testing an oil pressure switch]]  |  When checking ohms, first check that the meter \\ reads '0' ohms with leads pressed together. ((photo by Hippysmack))  | 
-|{{:techtalk:ref:trouble:testing_the_oil_pressure_switch_7_by_hippysmack.jpg?direct&300|}}|+|{{techtalk:ref:svcproc:testing_the_oil_pressure_switch_7_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:multimeter_on_ohms_scale.jpg?direct&300|}}| 
 + 
 +====== Probe Mod ====== 
 + 
 +You can buy a couple alligator clips from an auto parts / electronic store and gently crimp the ends over the end of the straight probes. \\ 
 +This will allow you to clip onto pinouts for testing. \\ 
 +You can also lightly wrap electrical tape over the assembly for working in areas where the pins are close to each other so they don't make contact. \\
  
 +{{:techtalk:ref:tools:multimeter_probe_mod_1_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:ref:tools:multimeter_probe_mod_2_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\
  
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