Products > Test Equipment
Use of Oscilloscope Probe x100 Vs x1000
<< < (3/6) > >>
DaneLaw:

--- Quote from: 2X on April 04, 2024, 07:28:56 pm ---For similar reason because my oscilloscope when I bought it had only two probes x10 and I want to see a small signal without noise from the x10 attenuation I bougth x1 probe.

--- End quote ---

What oscilloscope do you have?
2X:

--- Quote from: DaneLaw on April 04, 2024, 09:40:27 pm ---
--- Quote from: 2X on April 04, 2024, 07:28:56 pm ---For similar reason because my oscilloscope when I bought it had only two probes x10 and I want to see a small signal without noise from the x10 attenuation I bougth x1 probe.

--- End quote ---

What oscilloscope do you have?

--- End quote ---


https://www.rohde-schwarz.com/ae/products/test-and-measurement/oscilloscopes/rs-rtc1000-oscilloscope_63493-515585.html


2X:
I found the below probe where have 2000V@3MHz & 1000V@7MHz (DC + AC Peak) max input voltage. Have anyone used it on 1000Vrms? I beleive his specs are good enough for these that I want to measure. Whatever product I have used from BK it was good quality.

BK Precision PR2000B 200 MHz 2 kV Oscilloscope High Voltage Probe
https://www.instrumentation2000.com/b-k-precision-pr2000b.html
https://www.instrumentation2000.com//media/pdf/bk-pr2000b-manual.pdf

Also, I found and the below but I beileve is too much.
https://www.instrumentation2000.com/cal-test-ct4432-oscilloscope-probe.html
bdunham7:

--- Quote from: 2X on April 05, 2024, 10:37:02 pm ---I found the below probe where have 2000V@3MHz & 1000V@7MHz (DC + AC Peak) max input voltage. Have anyone used it on 1000Vrms? I beleive his specs are good enough for these that I want to measure. Whatever product I have used from BK it was good quality.

--- End quote ---

That should work, but since you're in the EU, the very similar looking Testec TT-HV 250 might be easier to come by.

https://www.testec.de/en/products/product-categories/standard-probes/

How much current loading can your CCFL driver take?  These probes have good input impedances--100M and 4 or 5pF--but you need to make sure that even the small 5pF won't cause too much loading.  You'd need to know approximately the frequency and current capability of your CCFL system to calculate whether loading will be an issue.
2X:

--- Quote from: bdunham7 on April 05, 2024, 10:46:46 pm ---
--- Quote from: 2X on April 05, 2024, 10:37:02 pm ---I found the below probe where have 2000V@3MHz & 1000V@7MHz (DC + AC Peak) max input voltage. Have anyone used it on 1000Vrms? I beleive his specs are good enough for these that I want to measure. Whatever product I have used from BK it was good quality.

--- End quote ---

That should work, but since you're in the EU, the very similar looking Testec TT-HV 250 might be easier to come by.

https://www.testec.de/en/products/product-categories/standard-probes/

How much current loading can your CCFL driver take?  These probes have good input impedances--100M and 4 or 5pF--but you need to make sure that even the small 5pF won't cause too much loading.  You'd need to know approximately the frequency and current capability of your CCFL system to calculate whether loading will be an issue.

--- End quote ---



I found the BK precision probes on mouser electronics so it is not a problem the shipping. I have never used Testec probe or any other product of this brand... It has better, same or lower quality and safety from BK precision?
From searching on the internet and from the below waveform I found that the frequency is approximatelly ~50KHz and the current ~10mA, so I beleive the loading from the probes will be imperceptible.

https://www.researchgate.net/figure/Measured-CCFL-voltage-05-KV-div-and-current-33-mA-div-when-driven-by-a-PT-based-HF_fig2_3281120
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod