Manual for DMM Siemens B 1045 - Page 1
Forum section: electronics / testgear

author: hammy
author_rank: Unknown
timestamp: May 21, 2014, 07:09:10 pm
content: Hi!I've got an old DMM Siemens B1045, but unfortunately no manual.Could be someone so kind and send me a copy? This would be really helpful!Thank you!Cheershammy

author: Thilo78
author_rank: Regular Contributor
timestamp: May 21, 2014, 07:13:25 pm
content: Hi!Take a look here:https://www.eevblog.com/forum/testgear/repairing-a-siemens-b1045-multimeter/Might be something in there for you and your B1045Thilo

author: hammy
author_rank: Unknown
timestamp: May 21, 2014, 07:26:52 pm
content: Yes, I read this thread already and saved a copy of the schematics.Thank youBut there is some small counter in the lower left corner, showing "01". I'm interested in some details about this, and possible other error codes.The DMM is spot on with everything I measure, but some more details about the DMM would be great.And because it is a "Siemens" from '85 I'm quite sure the manual is not like these chinese blurb leaflet you get today.

author: JOERGG
author_rank: Contributor
timestamp: May 21, 2014, 10:35:34 pm
content: You can buy a copy herehttp://www.rainer-foertig.de/unterlagen/Siemens%2001_2010.htm

author: david77
author_rank: Frequent Contributor
timestamp: May 21, 2014, 10:50:57 pm
content: That was my B1045 in that thread. The small display in below the power button apparently has something to do with GPIB, my unit isn't equipped with GPIB but it still has this small display. It doesn't show anything there.I'm afraid the service manual is not like one for HP or Tek gear of that era. It's only a couple of pages and only very general information about theory of operation. The schematics are all there, of course but without a single word of explanation.The best source of information is the datasheet of the LD120/121 AD converter.Most of the written part is taken up by explanations about GPIB programming.edit:Btw. could you open it and take some pictures of the innards? I'd be interested if yours is as much of a bodge job as mine.

author: hammy
author_rank: Unknown
timestamp: May 22, 2014, 05:13:39 am
content: Quote from: david77 on May 21, 2014, 10:50:57 pmOk. I see.Quote from: david77 on May 21, 2014, 10:50:57 pmYes, I took the top and bottom lid off and on the bottom side of the circuit board are also bodge wires. I'll make photos this afternoon.Cheershammy

author: Daniel14
author_rank: Newbie
timestamp: September 19, 2014, 05:07:20 pm
content: Hi,I just stumbled on this forum looking for info on the B1045. I've got one here, and it seems to be in mostly working condition. It's also got the GPIB option installed. I don't have a manual, but I can tell you that the '01' in the lower left corner is the device address, as set by the switches on the back of the unit. The display is decimal, but the switches work in binary.There's one thing I could use your help with - I can't switch to current mode. Is there anything special I have to do to switch from voltage/resistance to current? Or is it just that the buttons on my unit are broken (actually quite likely)?

author: hammy
author_rank: Unknown
timestamp: September 19, 2014, 09:14:13 pm
content: Quote from: Daniel14 on September 19, 2014, 05:07:20 pmNo, there is nothing special. You just have to push the "mA~" or "mA=" button on the front panel for roundabout 1 second.(They made it this way to prevent an accidentally current measurement.)Cheershammy

author: hoppppla
author_rank: Newbie
timestamp: July 10, 2017, 07:52:28 pm
content: Hi,fetched a B1045 in working condition last week. Inside it looks quite messy, but a quick test has shown that the measurements are plausible, compared to my other Multimeter.Now I'm interested in how well the device still lies in its specification, but I didn't find any specification in the net. Has anyone here the specification available?thanks,Hermann

author: hammy
author_rank: Unknown
timestamp: July 10, 2017, 10:46:29 pm
content: Quote from: hoppppla on July 10, 2017, 07:52:28 pmThe size of the pdf manual is to big. I cannot attach it. Please send me a PM ...

author: alm
author_rank: Super Contributor
timestamp: July 10, 2017, 10:54:47 pm
content: Why not upload it toKO4BB's manual archiveand/orTiN's documentation site? Then it is available for everyone who might need it.

author: hammy
author_rank: Unknown
timestamp: July 10, 2017, 11:15:40 pm
content: Indeed. Thank you! I uploaded the file into K04BBs archive. It should show up after verification.

author: hoppppla
author_rank: Newbie
timestamp: July 11, 2017, 07:50:23 pm
content: thanks a lot