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As part of our EMI requirements, we need all exposed metallization to be electrically connected to the PWB ground plane, with <2.5 milliohm resistance. By using the RATE and FILTER functions we are able to get rid of the noise, but the readings often drift into the negative ohms range. Can we interpret this reading like an absolute value, or is this just so far down in the mud that the meter tolerances are causing this. If one can't consider this as an absolute value, can we assume that we have close to a 0.000 ohm measurement?

Hello,
I need a replacement for the 3792-KIT104-R.

I have a Keithley 3720 Dual 1×30 Multiplexer Card for my 3706A. I cannot seem to locate a way to plug the card into any external devices (voltmeter, current source, etc.) and would like to know if there is one.

Hi, I Need a replacement for either 370A or 370B. Can you recommend a suitable replacement?

Can the 2281S measure a pulsed current of 3 volts and 10 mS duration?
The current would be driven into a 1 ohm load so about 3 amps will be drawn.

Hello,
I am working on an application where we use the 6430 source to inject currents into a piece of our own hardware, which for simplicity we will simply refer to as an I/V converter, for a calibration process. We have 5 operating ranges from 2uA to 20mA.

We test 95%, 75%, 50%,25%, and 5% of each of our operating ranges. In practice, I am able to get the unit to pass our calibration test on every test, EXCEPT 5% of our 20mA range, and 50% of our 2mA range. Both of the tests use a 1mA output from the 6430 on the 1mA output range.

The error for these two inputs is significant for only this case (around 2% according to our hardware when injecting 1mA on the 1mA range). Other output currents on the 1mA range seem to behave as expected. If I manually inject the current and perform the test, but utilize the 6430's 10mA range (1mA output on 10mA range), the error goes away and we get a result that our test would pass.

From the data sheet I would expect the 6430 1mA range to be more accurate than the 10mA, but based on the fact that all of our other tests for the same circuit pass and the magnitude of this error, coupled by the fact the pattern shows up on multiple IVs I have tested and two separate 6430 sources, I am wondering if I missed something in terms of how the 6430 unit should be set up? Any suggestions you can provide would be appreciated. For now I am trying to determine if I can force the unit to inject 1mA on the 10mA range via labview.

Hi, I noticed the 131-0258-00 probe jack is discontinued. Is there a substitute available? And if so, with which single ended probe it is compatiable with?

Last, do you recommend any Commercial bnc jack if you are not supporting it?

I purchased the 2100/120 but saw other versions (220/240, etc.) online.

Is the 2100 is just the base version and the voltage limits are upgradable?

I am having problems remotely acquiring 100,000 samples with my MSO4104 using LabVIEW. When I set the record length to 100k, I only receivee 10k samples and I am not sure why this is happening.

Hello,

What is the maximum voltage of the 2470? I read online that the 2470 could withstand 1000 V, while the manual indicates it can handle up to 1100 volts. Also is the 2470 is a direct replacement for the 2410, and does it include an 'Isolation Relay' feature like the 2410 does?