Author Topic: Keithley 2001 or 2010?  (Read 300 times)

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Offline Anders Petersson

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Keithley 2001 or 2010?
« on: February 25, 2021, 11:51:15 am »
I'm looking to buy a used 7 1/2 digit DMM. I would like to use Keithley scanning cards for 4-wire measurements of PT100's. I also do low-voltage DC work and remote control is important.

An overview of options is here: https://www.tek.com/document/product-selector-guide/digital-multimeters-selector-guide

The 2010 model doesn't seem as popular as the 2001, is there any reason for this? DMM7510 is superior to both but is too expensive.

My pros and cons judged from datasheets:

2010:
 + RS232
(+ Continuity test, diode test, dry circuit... not important for me)
 - 1 uA lowest DCI resolution
 - 7-segment-style display

2001:
 - Needs GPIB to USB adapter
 + 10 pA lowest DCI resolution
 + nice-looking dot-matrix display

Have I overlooked anything? Drift specs are similar. Nonlinearity? Measurement noise? Fan noise?
 

Offline Kleinstein

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Re: Keithley 2001 or 2010?
« Reply #1 on: February 25, 2021, 05:42:24 pm »
The 2001 has relatively high noise for a 7 digit meter. The newer 2010 is considerably lower noise, at least in the 10/20 V range.
The 2001 has a 20 V range - the 2010 10 V as the prime range.
The 100 mV range noise specs for the 2010 look good, at least at 1 PLC  - for some reason 5 PLC is not that good anymore (still not bad).

I am not sure about the 2010, but quite a few of the Keithley have some extra noise, when using some 100 PLC. Theres seems to be a common weak point related to how the AZ mode is implemented. This also effects the DMM7510 and there is a seprate thread about this issue. It may not be so bad when looking at a low level signal, so using some the 100 mV or similar range. This is more a point compararing to a KS meter.

The 2001 is relatively old design and may need cap replacement if not allready done. On the positive side the service manual for the older meters is more detailed and schmaitcs is available if needed.
 
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Offline Zucca

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Re: Keithley 2001 or 2010?
« Reply #2 on: February 25, 2021, 06:08:04 pm »
2001 to play and have fun.
For all the rest 2010 or whatever you want.
Can't know what you don't love. St. Augustine
Can't love what you don't know. Zucca
 

Offline Anders Petersson

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Re: Keithley 2001 or 2010?
« Reply #3 on: February 26, 2021, 03:50:47 pm »
2001 to play and have fun.
For all the rest 2010 or whatever you want.

Why is that? Do you mean 2001 is not capable of serious work? Or that's it's just more fun? :-)
 


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