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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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16th Sep 2017, 9:29 am | #1 |
Hexode
Join Date: Aug 2010
Location: nr. Hannover, Germany
Posts: 372
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Metrix MX56 - no voltage readings
Hi all,
my trusty MX56 has suddenly stopped displaying voltages on both AC and DC, as far as I can tell there was no overload or other problem. One day it was OK, the next day nothing on the voltage range(s). Has anybody experience of this meter and what might cause this problem? A search on the net did not reveal a circuit diagram. This meter, whilst perhaps not being exactly vintage, has given me many years of valuable service and I'd be very reluctant to bin it. Many thanks
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Eddie BVWS Member. Friend of the BVWTM |
17th Sep 2017, 2:00 am | #2 |
Heptode
Join Date: Jun 2010
Location: Zurich, Switzerland
Posts: 538
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Re: Metrix MX56 - no voltage readings
Hi Eddie,
your MX56 should be same as BK Precision 5390 and Metrix is yet by Chauvin-Arnoux_as state in these interesting blog (he became a cct from their)... Regards, Karl |
17th Sep 2017, 8:40 am | #3 |
Hexode
Join Date: Aug 2010
Location: nr. Hannover, Germany
Posts: 372
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Re: Metrix MX56 - no voltage readings
Karl,
many thanks for pointing me towards that blog, it should keep me busy this morning
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Eddie BVWS Member. Friend of the BVWTM |
17th Sep 2017, 4:09 pm | #4 |
Dekatron
Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,081
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Re: Metrix MX56 - no voltage readings
Very high input impedance on the voltage ranges presumably; it's not a marginal test lead playing up intermittently is it?
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17th Sep 2017, 5:33 pm | #5 |
Hexode
Join Date: Aug 2010
Location: nr. Hannover, Germany
Posts: 372
|
Re: Metrix MX56 - no voltage readings
No, shorting the test leads on the ohms range gives a reading of near enough 0 ohms.
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Eddie BVWS Member. Friend of the BVWTM |