Products > Test Equipment
OWON XDM1041 the unknown multimeter...
theHWcave:
@Misk
For anything above 100K or so, you must use LOW speed. Secondly AUTO RANGE is not reliable at high resistance values. Try manual range. Using this I can measure 10 Meg with good accuracy
It is very similar to capacity mode. I find that > 1000uF you have to use manual range or you never get a good reading.
Kleinstein:
Pt100 is problematic with 2 wires. 3 wire mode is usually not supportedd by DMMs. Bendch DMMs usually support 4 wire mode - though it looks like the XDM1041 does not. With 2 wire connections it would be better to use Pt1000 instead of Pt100.
The accuracy of thermocouples is often nor very good, but the error is usually more like a percentage of difference to the room temperatur. At essentially the room temperature there is not much error from the TC itself. There can be some error from the connectors, from lokal temperature gradients. It is more the PT100 sensor that can have an offset-error.
Misk:
--- Quote from: theHWcave on June 09, 2021, 11:16:29 pm ---@Misk
For anything above 100K or so, you must use LOW speed. Secondly AUTO RANGE is not reliable at high resistance values. Try manual range. Using this I can measure 10 Meg with good accuracy
It is very similar to capacity mode. I find that > 1000uF you have to use manual range or you never get a good reading.
--- End quote ---
Thank you. I ask OWON support one week. Finally I get a special firmware from OWON and the all problems are solved.
davebb:
--- Quote from: Misk on June 10, 2021, 06:13:32 pm ---
--- Quote from: theHWcave on June 09, 2021, 11:16:29 pm ---@Misk
For anything above 100K or so, you must use LOW speed. Secondly AUTO RANGE is not reliable at high resistance values. Try manual range. Using this I can measure 10 Meg with good accuracy
It is very similar to capacity mode. I find that > 1000uF you have to use manual range or you never get a good reading.
--- End quote ---
Thank you. I ask OWON support one week. Finally I get a special firmware from OWON and the all problems are solved.
--- End quote ---
Hi do you up load the firmware with the rs232 / usb port,
Can you please post the new firmware and is there a loader program , Thanks Dave
davebb:
Hi Misk
Have you tested with a K-type probe to test the Temp,
if you have does yours read ok ?, do you get a jump in temp after its been on for 10 mins?
what version firmware are you now using
Thanks Dave
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