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80 Series III
Users Manual
Testing the Fuses
Before measuring current, test the appropriate fuse as shown in Figure 9. If the tests give readings other than those shown, have the meter serviced.
WWarning
To avoid electrical shock or personal injury, remove the test leads and any input signals before replacing the battery or fuses. To prevent damage or injury, install ONLY specified replacement fuses with the amperage, voltage, and speed ratings shown in Table 9.
Good F2 fuse: 00.0 Ω to |
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| 87 TRUE RMS MULTIMETER |
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00.5 Ω |
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Replace fuse: OL |
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| MIN MAX | RANGE | HOLD |
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| REL | Hz |
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| PEAK MIN MAX |
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| mV |
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| V |
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| mA |
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| A |
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| V |
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| μA |
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| OFF |
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Touch top half | A | mA μA | COM | V |
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of input contacts |
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| 400mA MAX | CAT II |
| ! | |
| 10A MAX | FUSED |
| 1000V MAXCATII |
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| FUSED |
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| 1000V | MAX | |
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| 87 TRUE RMS MULTIMETER |
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| MIN MAX | RANGE | HOLD |
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| REL | Hz |
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| PEAK MIN MAX |
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Good F1 fuse: 0.995 kΩ to |
| mV |
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| V |
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| mA |
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| A |
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1.005 kΩ |
| V |
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| μA |
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OFF |
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Replace fuse: OL | A | mA μA | COM | V |
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| 400mA MAX | CAT II |
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| 10A MAX | FUSED |
| 1000V MAXCATII |
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| FUSED |
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| 1000V | MAX | |
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| iy5f.eps |
Figure 9. Testing the Current Fuses
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