FUSES
FUSE F1
Fuse F1 protects the instrument in continuity measurement with a high
current (10 or 25 A).
To check F1:
■
Put the instrument in continuity measurement,
■
Select the External Terminals
Make a short circuit by connecting a safety lead between terminals C1 and C2.
■
■
For configuration, choose a measuring current of 10 A and a measurement of 2 wires
■
Press the Start / Stop button to start the measurement.
If current I is close to 0, fuse F1 is faulty.
FUSES F2 AND F3
Fuses F2 and F3 protect the power supply to the instrument.
To check F2 and F3:
■
Connect the mains lead between the instrument socket and the mains.
Press the On / Off switch. The instrument starts.
■
If the instrument does not start, one of the two fuses F2 or F3, or both fuses are defective. Either way, replace both fuses.
REPLACEMENT PROCEDURE
■
Disconnect anything connected to the instrument and switch it off.
■
For F1, press the fuse holder while unscrewing it a quarter turn.
■
For F2 and F3, unscrew the fuse holder a quarter turn using a flat screwdriver.
■
Remove the defective fuse and replace it with a new fuse.
To ensure continuity of safety, replace a defective fuse only with a fuse with strictly identical characteristics.
F1: FF 30 A 300 V 6.3 x 32 mm
F2 and F3: FF 16 A 300 V 6.3 x 32 mm
■
Close the fuse holder by tightening it a quarter turn. For F1, press while tightening.
■
Check the correct operation of the replaced fuse as described above.
then
connection.
18
F1
30 A 300 V
16 A 300 V
6,3 x 32
.
F2
F3
16 A 300 V
6,3 x 32
6,3 x 32
.