Products > Test Equipment
Keysight DMM - Yay or nay?
Traceless:
--- Quote from: Dr. Frank on March 04, 2022, 10:54:32 am ---So I also recommend to buy the 34465A, but get the MEM option for free, because that is needed for proper use of the built in DIG function.
Frank
--- End quote ---
You can get that for free? I checked and that seems to be sold as an 250€ upgrade.
Dr. Frank:
--- Quote from: Traceless on March 04, 2022, 11:06:19 am ---
--- Quote from: Dr. Frank on March 04, 2022, 10:54:32 am ---So I also recommend to buy the 34465A, but get the MEM option for free, because that is needed for proper use of the built in DIG function.
Frank
--- End quote ---
You can get that for free? I checked and that seems to be sold as an 250€ upgrade.
--- End quote ---
I had to buy both options at that time, plus the GPIB interface.
The DIG option is included since FW 3.0.
KS offered the MEM option for free several times over the last years as a sales deal, so you have to look out, also on the American site, or ask your German distributor, if they can offer that for free, if you buy the instrument.
PS: Currently they include BenchView for free (forget it!), so maybe you can deal-in this for the MEM option.
Maybe the other colleagues can tell something about the Keithley SW in comparison?
Frank
HighVoltage:
--- Quote from: Kleinstein on March 04, 2022, 09:48:45 am ---
--- Quote from: HighVoltage on March 04, 2022, 09:29:46 am ---
--- Quote from: Kleinstein on March 04, 2022, 09:06:28 am ---The 1 Ohms range with the DMM6500 looks more like a digital zoom and is likely of very limited value.
--- End quote ---
The low ohm feature of the DMM6500 is much better than one would expect.
As I have said in other threads before, both instruments are great.
--- End quote ---
Low ohms is good, but the 1 Ohms range would be 10 mV max for the measured voltage and I don't think there is a real 10 mV range, more like just a digital x 10.
The 10 Ohms range with 10 mA test current is already good - though 10 mA with up to 12 V could be a problem for some tiny resistors / transistors.
--- End quote ---
Well, one would always use a milli ohm meter or instrument that is used for low ohm measurements.
However, I was really surprised how spot on the DMM6500 is in low ohm measurements.
And this experiment can be repeated with success, the instrument really shines here unexpectedly.
HighVoltage:
--- Quote from: Dr. Frank on March 04, 2022, 10:54:32 am ---
I also can confirm your observation, that meanwhile after an ACAL a 10Vdc measurement drifts about -1ppm before stabilizing.. this did not happen when the instrument was new.
Frank
--- End quote ---
I had the horrible ACAL drift experiences with the 34470A and that was never really fixed by Keysight.
The ACAL drift of the 34465A is not bad in comparison.
Here is the ACAL drift test of my 34465A from 2018.
nctnico:
--- Quote from: HighVoltage on March 04, 2022, 01:21:53 pm ---
--- Quote from: Kleinstein on March 04, 2022, 09:48:45 am ---
--- Quote from: HighVoltage on March 04, 2022, 09:29:46 am ---
--- Quote from: Kleinstein on March 04, 2022, 09:06:28 am ---The 1 Ohms range with the DMM6500 looks more like a digital zoom and is likely of very limited value.
--- End quote ---
The low ohm feature of the DMM6500 is much better than one would expect.
As I have said in other threads before, both instruments are great.
--- End quote ---
Low ohms is good, but the 1 Ohms range would be 10 mV max for the measured voltage and I don't think there is a real 10 mV range, more like just a digital x 10.
The 10 Ohms range with 10 mA test current is already good - though 10 mA with up to 12 V could be a problem for some tiny resistors / transistors.
--- End quote ---
Well, one would always use a milli ohm meter or instrument that is used for low ohm measurements.
--- End quote ---
Yes. But it is nicer if you have instruments that can at least help you out when in a pinch. In my case I suddenly needed to measure a resistor in the range of 500 micro-Ohm with 1% accuracy. A 100 Ohm range is not doing much good in such a case.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version