How To Use A Digital Multimeter

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How To Use A Digital Multimeter

  1. 1. How To Use A… Digital Multimeter
  2. 2. How To Use A… Digital Multimeter
  3. 3. ???
  4. 4. Wait, what is a Multimeter??
  5. 5. A Multimeter Measures…
  6. 6. Voltage
  7. 7. Resistance
  8. 8. Current
  9. 9. AUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAU Safety N CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION
  10. 10. 1. Always READ the Manual
  11. 11. 2. Know the Equipment
  12. 12. 2. Know the …and the Safety Precautions for Equipment the Equipment
  13. 13. 3. Never Exceed the Input Rating of the Meter
  14. 14. 4. Only Touch the Insulated Parts of the Probes
  15. 15. 4. Only Touch the Insulated Parts of the Probes NOT THE METAL TIPS…
  16. 16. Why Not the Metal Tips?
  17. 17. To avoid Why Not the Metal Tips? ELECTRICAL SHOCK Or INJURY!!!!!!
  18. 18. 5. Always Keep your Left Hand Out of the Way
  19. 19. 5. Always Keep your Left Hand Out of the Way So that if you are SHOCKED the current does not travel down through your VITAL ORGANS
  20. 20. 6. While taking High Voltage Measurements… Do NOT Touch ANY of the Equipment
  21. 21. 6. While taking High Voltage Measurements… Because you could Do NOT Touch conduct a ANY of the HAZARDOUS SHOCK Equipment
  22. 22. 7. Always Stand on an Insulating Surface Cardboard
  23. 23. 7. Always Stand on an Insulating Surface Rubber Soles Work Cardboard As Well!
  24. 24. 7. Always Stand on an Insulating Surface To Prevent SHOCK! Cardboard
  25. 25. 8. Never Work Alone
  26. 26. 8. Never Work So if Something Alone Happens, Someone is there to Help
  27. 27. 9. Disconnect Leads from Voltage Points Before Changing the Battery
  28. 28. 9. Disconnect Leads from Voltage Points Before Why? To avoid…Battery Changing the HAZORDUOS SHOCK!!
  29. 29. Parts of the Meter OFF
  30. 30. Leads OFF
  31. 31. Input Terminals Leads OFF
  32. 32. Input Terminals Meter Leads OFF
  33. 33. Input Terminals Meter Leads OFF Rotary Switch
  34. 34. Input Terminals Meter Leads OFF Rotary Switch On the Back Battery Compartment
  35. 35. The Symbols COM !
  36. 36. DANGER HIGH VOLTAGE TERMINAL
  37. 37. !
  38. 38. ! WARNING SEE MANUAL
  39. 39. COM
  40. 40. COM Common Input Terminal
  41. 41. ???
  42. 42. Read Manual To See which Lead Gets Plugged Into the COM
  43. 43. Read Manual To See which Lead This is Meter Specific Into Gets Plugged the COM
  44. 44. Continuity Buzzer
  45. 45. ???
  46. 46. Continuity Tests Confirm that your Circuit is Electrically Connected
  47. 47. Diode Test
  48. 48. ???
  49. 49. A diode is a valve that makes electrical current flow in one direction. You can test if a diode is working with your multimeter.
  50. 50. DC Symbol
  51. 51. AC Symbol
  52. 52. AC DC vs.
  53. 53. AC
  54. 54. AC Alternating Current
  55. 55. AC Current Periodically Reverses Direction Alternating Current
  56. 56. DC
  57. 57. DC Direct Current
  58. 58. DC Current Moves in Only ONE Direction Direct Current
  59. 59. Connecting the Multimeter
  60. 60. To Measure: Current
  61. 61. To Measure: Current OFF
  62. 62. To Measure: Current OFF Connect in Series
  63. 63. To Measure: Voltage
  64. 64. To Measure: Voltage OFF
  65. 65. To Measure: Voltage OFF Connect in Parallel
  66. 66. To Measure: Resistance
  67. 67. To Measure: Resistance OFF
  68. 68. To Measure: Resistance OFF Measure Resistor Disconnected from the Circuit
  69. 69. Dial Settings
  70. 70. 2 vs.20vs.200
  71. 71. Know a Rough Estimate of the Setting Range
  72. 72. Hmmm…I think the Voltage is about 15v
  73. 73. Select the (2, 20 or 200…) After Conferring With the Manual and Plug in the Appropriate Leads
  74. 74. Select the (2, 20 or 200…) Select Always After Conferring With the the Highest Manual and Plug in Setting Possible the Appropriate Leads
  75. 75. So, a 20v Setting would be Good!
  76. 76. Remember! If Testing for Voltage…
  77. 77. Remember! If Testing for Voltage… For AC Select V
  78. 78. Remember! If Testing for Voltage… For AC Select V For DC Select V
  79. 79. Now You Know How To Use a Multimeter!!

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