My Keithley DMM7510 is screwed up detecting mains line frequency!

[Dragony]

Hello,

I have just purchased a DMM7510 but although most parts of it seems to work fine I have encountered a major problem with line frequency.

I live in Switzerland and we have 50Hz.

The problem is that the DMM sometimes detects 50Hz and sometimes 60Hz. Keithley decided not to allow the user to change this setting manually.

Furthermore, when I click on "Line Sync" when measuring DC Voltage (Settings dialog, well hidden), the DMM crashes everytime. (Can someone confirm this?)

Does someone has the same problems and has a hint how to work around this issues?

[TAMHAN]

Dragony, first of all, I do not own this unit. But, reading EEVblog and also electronics and arms electronics sources quite a lot, I have not heard much good about Danahers Keithley DMM family. I can recall crashes everywhere, and them generally being finicky.

Plus, Danahers repair fees become ANAL the moment you are out of warranty. If I were you, I would try my luck at chucking the thing back at Danaher and grabbing a different meter.

[The Soulman]

If purchased new send it in under warranty.
If second hand.. 

[BU508A]

Furthermore, when I click on "Line Sync" when measuring DC Voltage (Settings dialog, well hidden), the DMM crashes everytime. (Can someone confirm this?)

Does someone has the same problems and has a hint how to work around this issues?

I tested this with my DMM 7510 and it does not crash. Firmware version is 1.6.1a

[technogeeky]

Dragony, first of all, I do not own this unit. But, reading EEVblog and also electronics and arms electronics sources quite a lot, I have not heard much good about Danahers Keithley DMM family. I can recall crashes everywhere, and them generally being finicky.

Plus, Danahers repair fees become ANAL the moment you are out of warranty. If I were you, I would try my luck at chucking the thing back at Danaher and grabbing a different meter.

I'm a little confused about this. Are the units sold by Danahers different than the regular Keithley units? I hold Keithley to be world class, and DMM7510 to be similarly so. 

[VintageNut]

Hello,

I have just purchased a DMM7510 but although most parts of it seems to work fine I have encountered a major problem with line frequency.

I live in Switzerland and we have 50Hz.

The problem is that the DMM sometimes detects 50Hz and sometimes 60Hz. Keithley decided not to allow the user to change this setting manually.

Furthermore, when I click on "Line Sync" when measuring DC Voltage (Settings dialog, well hidden), the DMM crashes everytime. (Can someone confirm this?)

Does someone has the same problems and has a hint how to work around this issues?

I have two suggestions for  you.

1. Post on Tek/Keithley forum asking for help
2. Contact Tek/Keithley service group in Germany

[HighVoltage]

I had plenty of problems with my Keithley DMM7510.
After the problems were posted on the Tek forum, Keithley got very responsive and fixed many problems in interim FW
Right now I am running FW 1.6.3c and have no problems at all.

Keithley is about to release an official new FW and that should also address your problem.
I tested your problem on my instrument and I do NOT have this problem at 50Hz line frequency in Germany.

[Dragony]

I can't find your topic regarding your problems in the tek forum. Can you provide a link?

[TAMHAN]

Dragony, first of all, I do not own this unit. But, reading EEVblog and also electronics and arms electronics sources quite a lot, I have not heard much good about Danahers Keithley DMM family. I can recall crashes everywhere, and them generally being finicky.

Plus, Danahers repair fees become ANAL the moment you are out of warranty. If I were you, I would try my luck at chucking the thing back at Danaher and grabbing a different meter.

I'm a little confused about this. Are the units sold by Danahers different than the regular Keithley units? I hold Keithley to be world class, and DMM7510 to be similarly so.

Danaher owns Keithley, Tek and Fluke.

[HighVoltage]

I can't find your topic regarding your problems in the tek forum. Can you provide a link?

Here is where we have discussed our problems with the 7510 on eevblog
https://www.eevblog.com/forum/testgear/keithley-dmm7510-smu-2450-2460-problems/


And here on the Tek forum
https://forum.tek.com/viewtopic.php?f=363&t=139083#p281815