Category Archives: some professional projects

Druck DBC150TC calibratie oven

Posted on 14 december 2014 by pa4tim

Deze oven kan vriezen en verwarmen. Hij werd gisteren gebracht met de melding dat hij er mee opgehouden was. Helaas is het binnen deze tak van de calibratie wereld het niet echt geweldig gesteld met schemas en service informatie.  Kortom, weer … Continue reading →

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Ruska series 7000 druk calibrator

Posted on 11 december 2014 by pa4tim

Deze Ruska is een druk calibrator. Volgens de eigenaar een van de beste in zijn soort. Er zit een heel speciaal stuk glaswerk in. Dit is ingebouwd in een oven. Het glaswerk is een zogenaamde Bourdon tube. Deze buis werd … Continue reading →

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Gossen Metrawatt SECUTEST reparatie

Posted on 5 oktober 2014 by pa4tim

Dit is een soort super “Megger+”. Hij doet allerlei testen ivm veiligheid (zoals lekstroom en isolatie) maar het is ook een heel mooie powermeter. Jammer genoeg moet hij weer terug naar zijn eigenaar want dit was een reparatie opdracht. Was … Continue reading →

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HP-4261A LCR meter pre-cal

Posted on 2 september 2014 by pa4tim

This HP is like mine 4260 from the Japanese Factory and although the name and looks are related the inside is not. It looks to be in fine shape and is scheduled for calibration. The company who owns this meter … Continue reading →

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Fluke 5101 calibrator

Posted on 20 augustus 2014 by pa4tim

This is a Fluke 5101B with the wideband option. It failed calibration (done by Fluke). This is not mine but a commercial repair/overhaul I do for the company that owns it. This calibrator is rather heavy and there are lots … Continue reading →

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How to repair testgear (and other electronics)

Posted on 1 november 2013 by pa4tim

A lot of the measurement stuff I have, came to me in non working, or long not used condition. Repairing is something I enjoy very much. You learn a lot from it and if you succeed it feels good. A … Continue reading →

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HP-9100A calculator

Posted on 30 november 2012 by pa4tim

  To have a reference while repairing the 9100B the owner brought his very nice looking, but also not working 9100A. This is the first version. The processor seems to be working. You can test this keying : 1 CHS … Continue reading →

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HP-9100B calculator

Posted on 9 november 2012 by pa4tim

This is a report of progress made for the owner during the repair of a HP-9100B calculator. There are no microprocessors in side. It is one of the most famous calculators ever made. The first scientific calculator. I have no … Continue reading →

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