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VC300 Multimeter Killed 20A and mA by a to slow fuse

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Hello My VC300 Multimeter Killed 20A and mA by a too slow fuse . Is the chip destroyed - Volt and Ohm work - or can it be repaired? Regards

Comments
2022, May 27 - 19:55
#493755
lcsaszar
lcsaszar picture
9 years 2 months
*

Hello,

If the multimeter works in Volt and Ohm, then the chip is OK.
Only the 20A and the other mA ranges do not work? If so, check the fuse and all shunt resistors. If a shunt resistor is burnt, either it is browned or you can measure infinite with another multimeter. Also there can be a burnt PCB trace. I have seen once a burned trace under the range selector. You need to disassemble the selector switch and check.

Regards

1

2022, May 27 - 18:30
#493745
SzBálint
SzBálint picture
16 years 3 months
****

hello:

https://elektrotanya.com/caltek_green_digital_multimeter_vc-300.pdf/down...

Bálint

0