You can buy litium batteries at conrad. They have axial wires and fit into allmost all hp , philips equipment. The length is half an aa cel. As the current is so low, only the leakage counts. I never understand why they charge so much for calibration. It is for equipment with a stability of 30 ppm. A good calibrator with voltage and restistance standard give you about 3 ppm. I use fluke 5700 with datron voltage an esi resistance standard. Yes the voltage was calibrated. The resistance is difficult for the reason that only a national standard lab has a better uncertenty. Use to had 2 of these standards and the difference i found was in the order of 0.1 ppm of actual value compared to each other.
Regards Met vriendelijke groeten, Frans i...@electronicsandbooks.com electronicsandbooks.com Netherlands discere ne cesses Op vr, mei 25, 2018 om 1:03 schreef Dr. David Kirkby<drkir...@kirkbymicrowave.co.uk>: On 24 May 2018 at 23:43, Laurence Motteram < lmotte...@scientific-devices.com.au> wrote: > Hello Dave, > > Farnell UK have these; http://uk.farnell.com/w/c/ > batteries-chargers/batteries-non-rechargeable?battery-size-code=2-3aa > > > Best Regards, > > Laurence Motteram > Calibration & Service Manager > Scientific Devices Australia > Ph: +61 (0)3 9569 1366 > M: +61 (0)425 765 019 > www.scientific-devices.com.au > lmotte...@scientific-devices.com.au > > Thank you, but I believe they are the wrong size. They are 2/3AA, but the one needed is I believe 2/3A. I know what a AA cell is, but I must admit I've never come across an A cell, but I guess its bigger than a 2/3A. My biggest concern about buying batteries is getting counterfeits. That's why I would rather stick with a reputable supplier like Farnell, RS etc. But I can't find anything local. http://www.pmbl.co.uk/ look to be battery specialists in the UK, but I have never come across them before. I have emailed them, along with Panasonic directly. I've said to Keysight, if they will sell me the battery, I will buy it from them. I know Keysight is not going to be a cheap place to buy batteries, but given the difficulty in getting one, I would not mind buying directly from Keysight. But I am not paying nearly £300 for them to fit a battery. Dave _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there. _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
