Current input fuses, Testing current input fuses – Fluke 45 User Manual

Page 96

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45

Users Manual

6-2

Current Input Fuses

The 100 mA and 10 A inputs are protected by user-replaceable fuses.

The 100 mA input is protected by a fuse rated at F 500 mA, 250 V (Fast blow),
1500 A minimum breaking capacity, IEC-127 Sheet I.

The 10 A input is protected by a fuse rated at F 15 A, 250 V (Fast blow), 10,000 A
breaking capacity, [or F 15 A, 600 V, (Fast blow), 10,000 A minimum breaking
capacity].

Rear Panel

To remove,

Squeeze and slide out

F3 Line Fuse

(T 125 mA, 250 V, Slow Blow)

Fuse Holder

(Spare fuse provided)

Power-Line Cord Connector

qb12f.eps

Figure 6-1. Replacing the Line Fuse

Testing Current Input Fuses

Perform the following procedure to test these fuses:

1.

Plug a test lead into the

X input terminal and power-up the meter.

2.

Press

O to select the ohms function.

3.

Insert the test lead probe into the 100 mA input terminal.

If the fuse is good, the meter will read between 11

and 15

. If the fuse is blown,

the meter will read >10 M

to OL.

4.

Remove the test lead probe from the 100 mA input terminal and insert it into the 10A
input terminal.

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