fundamentals of multimeter training - · pdf filefundamentals of multimeter training. ......
TRANSCRIPT
![Page 1: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/1.jpg)
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Fundamentals of Multimeter Training
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House Cleaning
REMINDER: This Webinar is being RecordedPlease Turn Off Cell Phones
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800-219-1269 | [email protected] | [email protected]
About the Presenter
Larry has over 20 years’ experience working with heavy duty fleets. He is an outstanding trainer and uses his extensive experience to help his customers make the best choices for their electrical needs.
He has been awarded the prestigious Recognized Associate Award from the Technology & Maintenance Council. Larry’s knowledge of electrical systems enables him to help his customers identify and remedy a fleets’ electrical issues.
1-800-219-[email protected]
Larry Rambeaux | Senior Account Representative
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Overview
Multimeter
VoltmeterAmmeterOhmeter
Diode CheckContinuity
4
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Pre-Check Multimeters
Battery Check
5
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Pre-Check Multimeters
Check and Replace
6
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Pre-Check Multimeters
Testing Leads and Meter
7
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Pre-Check Multimeters
Testing Meter Only
8
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Pre-Check Multimeters
Testing Red Leads
9
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Pre-Check Multimeters
Testing Black Leads
10
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Pre-Check Multimeters
Auto Voltage Operation
11
Will Automatically Move to the Proper Range
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Pre-Check Multimeters
Manual Voltage Operation
12
No Icon
Push Range
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Pre-Check Multimeters
Hold Functions
13
Push Hold Button
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AC Voltage Operation
Range 0 to 1000
14
Press Mode Until You See the AC Symbol
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DC Voltage Operation
Range 0 to 750
15
Press Mode Until You See the DC Symbol
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No Current Flowing
Red Lead:Black Lead:
16
12.5-0.00 12.5
1 2 . 5 V
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No Current Flowing
Red Lead:Black Lead:
17
12.5-0.00 12.5
12.5V
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No Current Flowing
Red Lead:Black Lead:
18
12.5-0.00 12.5
12.5V
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No Current Flowing
Red Lead:Black Lead:
19
12.5-12.50.00
0 0 . 0 V
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No Current Flowing
Red Lead:Black Lead:
20
12.5-0.0012.5
12 .5V
![Page 21: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/21.jpg)
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No Current Flowing
Red Lead:Black Lead:
21
0.00- 0.00
0.00
12 . 5V12 . 5V
0 . 0 0V
0.00V
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Current Flowing
Red Lead:Black Lead:
22
8.5- 0.00
8.5
Red Lead:Black Lead:
7.0- 0.30
6.708.50V 6.70V
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Current Flowing
Red Lead:Black Lead:
23
8.5- 7.0
1.5
1.50V
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Current Flowing
Red Lead:Black Lead:
24
0.3- 0.0
0.3
0.3V
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Must Have Current Flow to Have Voltage Drops
25
A Voltmeter Only Reads Voltage
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Using the Ammeter
26
Ammeter
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Pre-Check Multimeters
27
Test Fuses (10 amp)
OL 0.00
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Pre-Check Multimeters
28
Test Fuses (400 milliamp)
OL 15.8
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Pre-Check Multimeters
29
Replacing Fuses
.400 mA Fuse
10A Fuse
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Using In-Line Ammeter
30
Pretesting with a 10 amp fuseRemove the ground at the battery and place a 10 amp fuse assembly in series. If the fuse blows the current level is over 10 amps. DO NOT placeyour meter in this circuit, it will blow the internal meter fuse.
To Ground To Starter
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Using In-Line Ammeter
31
Pretesting with a 10 amp fuseMove the red lead to the 10 amp connector hole and turn the rotary switch to amp “DC”. Place the red lead on the terminal of the cable and place the black lead on the battery post.
To Ground To Starter1.27
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Using In-Line Ammeter
32
In this example, 2.53 amps flow from the battery to the light, then through the light to the read lead. The current then flows through the meter, then back to the battery through the black lead.
To Ground To Starter2.53
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Using In-Line Ammeter
33
Pretesting with a 10 amp fuse
If the ammeter reads 0 to .40, you may have the range set too high. To protect the meter from surges insert the fuse assembly between the cable connection and the batter ground.
Move the red lead to the 400 mA connector hole and turn the rotary dial to “mA”. Remove the test fuse and read the display.
Remember the meter is reading milliamps. A 25 on this scale means 25mA, which equals .025 amps.
To Ground To Starter
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Using In-Line Ammeter
34
• 1 mA= .001 Amps• 400 mA= .4 Amps To Ground 187.5 To Starter
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Using In-Line Ammeter
35
This is a very small amount of current. Be sure to use care when the meter is in this range. DO NOT open the tractor’s door or turn on any loads that exceeds .4 amps because is will blow the 400mA fuse.
To Ground 375.2 To Starter
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Magnetic Flux
36
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Clip - On
37
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Clip - On
38
Clip Around Wire/Cable Being Measured• Jaws Must Close Completely
• Must Zero Out Each Time
• Observe Arrow to Direction of Current Flow
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Ammeter
39
Ammeter Only Measures Current Flow
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Ohmmeter
40
Ohmmeter
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Ohmmeter
41
Position #1• 5.46 M Ω
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Ohmmeter
42
Position #1• 5.46 M Ω
• M= 10• 5,460,000 Ohms
+6
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Ohmmeter
43
Position #2• 99.0 K Ω
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Ohmmeter
44
Position #2• 99.0 k Ω
• k = 10• 99,000 Ohms
+3
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Ohmmeter
45
Position #3• 9.58 M Ω
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Ohmmeter
46
Position #3• 9.58 M Ω
• M= 10• 9,580,000 Ohms
+6
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Ohmmeter
47
Position #4• .990 M Ω
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Ohmmeter
48
Position #4• .990 M Ω
• M= 10• 990,000 Ohms
+6
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Ohmmeter
49
Position #5• 9.76 k Ω
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Ohmmeter
50
Position #5• 9.76 k Ω
• k= 10• 9,760 Ohms
+3
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Ohmmeter
51
Position #6• 21.71 k Ω
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Ohmmeter
52
Position #6• 21.71 k Ω
• k= 10• 21,710 Ohms
+3
![Page 53: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/53.jpg)
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Ohmmeter
53
Position #7• .546 k Ω
![Page 54: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/54.jpg)
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Ohmmeter
54
Position #7• .546 k Ω
• k= 10• 546 Ohms
+3
![Page 55: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/55.jpg)
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Ohmmeter
55
Position #8• 14.85 k Ω
![Page 56: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/56.jpg)
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Ohmmeter
56
Position #8• 14.85 k Ω
• k= 10• 14,850 Ohms
+3
![Page 57: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/57.jpg)
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Ohmmeter
57
Position #9• .983 k Ω
![Page 58: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/58.jpg)
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Ohmmeter
58
Position #9• .983 k Ω
• k= 10• 983 Ohms
+3
![Page 59: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/59.jpg)
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Ohmmeter
59
Position #10• 3.239 k Ω
![Page 60: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/60.jpg)
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Ohmmeter
60
Position #10• 3.239 k Ω
• k= 10• 3,293 Ohms
+3
![Page 61: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/61.jpg)
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Ohmmeter
61
Good30 Amp Relay, Checking Coil Resistance
VR
12.5102
= I
.12=
![Page 62: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/62.jpg)
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Ohmmeter
62
Open Coil30 Amp Relay
![Page 63: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/63.jpg)
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Ohmmeter
63
Shorted Coil30 Amp Relay
054.2
![Page 64: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/64.jpg)
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Ohmmeter
64
Good30 Amp Relay
VR
12.5102
= I
.12= 12.554.2 .23=
GOOD SHORTED
![Page 65: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/65.jpg)
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Ohmmeter
65
Test The Normal Closed Contacts30 Amp Relay
![Page 66: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/66.jpg)
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Ohmmeter
66
Test The Normal Closed Contacts30 Amp Relay
![Page 67: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/67.jpg)
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Ohmmeter
67
Only Measures Resistance
![Page 68: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/68.jpg)
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Diode Check
68
Electrical One-Way Check Value
![Page 69: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/69.jpg)
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Diode Testing
69
Digital Multimeter MUST Be Set to Test Diode
• Press Mode Until You See Diode Symbol
• Must Provide Enough Voltage to Forward Bias Diode
![Page 70: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/70.jpg)
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Diode Testing
70
Current Can’t Flow This Direction
![Page 71: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/71.jpg)
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Diode Testing
71
Current Flows This Direction .3 to .6 Voltage Drop
![Page 72: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/72.jpg)
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Diode Testing
72
Open
![Page 73: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/73.jpg)
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Diode Testing
73
Shorted
![Page 74: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/74.jpg)
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Diode Testing
74
Continuity Test – (beeps)
• If all but one of the strands are broken it will still show continuity.
• It will not handle the current load.
![Page 75: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/75.jpg)
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Meter Cheat Sheet
75
![Page 76: Fundamentals of Multimeter Training - · PDF fileFundamentals of Multimeter Training. ... best%choicesfor%their%electrical%needs.% ... Testing Leads and Meter 7. 800-219-1269](https://reader031.vdocuments.site/reader031/viewer/2022030408/5a87b1c47f8b9afc5d8dffe4/html5/thumbnails/76.jpg)
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Questions &Answers
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Thank you!