Products > Test Equipment
A look at the Uni-T UT210E
JonnyM:
--- Quote from: jayjr1105 on November 19, 2018, 11:06:14 pm ---Did you make sure you don't have the older chip? It can't do 10000 count. Before and after dumps would help us determine if anything is wrong.
Sent from my Pixel using Tapatalk
--- End quote ---
I got it fixed :phew:
My configuration had somehow gotten completely messed up, luckily I backed it up beforehand.
This is what the dump looked like when it didn't work yesterday, compared to my backup: https://pastebin.com/qx7DVERZ
I didn't know how I could upload the entire backup.hex so I had to write it byte by byte in the arduino ide, like this: :horse:
writeByte(I2C_ADDR, 0x10, (byte) 0x70);
writeByte(I2C_ADDR, 0x11, (byte) 0x17);
writeByte(I2C_ADDR, 0x12, (byte) 0x98);
...
jayjr1105:
--- Quote from: stj on November 20, 2018, 02:58:08 am ---actually it can do 10,000 count - just not in AC volts - the true-RMS function cant handle it above 7,000 counts.
--- End quote ---
Yes I knew it was an RMS limit, wasn't sure if it messes anything else up.
--- Quote from: JonnyM on November 20, 2018, 06:11:03 pm ---
--- Quote from: jayjr1105 on November 19, 2018, 11:06:14 pm ---Did you make sure you don't have the older chip? It can't do 10000 count. Before and after dumps would help us determine if anything is wrong.
Sent from my Pixel using Tapatalk
--- End quote ---
I got it fixed :phew:
My configuration had somehow gotten completely messed up, luckily I backed it up beforehand.
This is what the dump looked like when it didn't work yesterday, compared to my backup: https://pastebin.com/qx7DVERZ
I didn't know how I could upload the entire backup.hex so I had to write it byte by byte in the arduino ide, like this: :horse:
writeByte(I2C_ADDR, 0x10, (byte) 0x70);
writeByte(I2C_ADDR, 0x11, (byte) 0x17);
writeByte(I2C_ADDR, 0x12, (byte) 0x98);
...
--- End quote ---
Glad you got it figured out. I thought my ino file was pretty much bug free.
simon.jowett:
I enjoyed reading this blog post and have produced a "How to" video - hope you like it!
https://youtu.be/KIHGHWJFyGU
All credit to the people who did the hard work working this out in the 1st place!
bitseeker:
Nice vid, Simon. :-+ Thanks for the heads up.
cdev:
So, probing around with my UT210E in NCV mode, it seems that a few known to be low voltage wires around my computer desk activate the voltage alarm. For example, the area around the Enter key on the PS2 keyboard I am typing on now does. Just the area around the Enter key and a second area around the numeric pad. What is it measuring?
I am thinking that the UT201E NCV function may be useful in finding previously unknown sources of RFI.
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