I am connecting three leads, one to channel (Upper) , one to D-G (Upper) and another to Ref (upper) and then taking brain data from user but i am getting railed at openbci GUI.

One question, i was trying to use an electro-cap with an 8-bit Cyton board, the cap terminates in the DB25 connector and i was wondering if its necessary to use the DB25 to touchproof converter and th

But the voltage of Fz was displayed as RAILED when I used OpenBCI_GUI.

Didn't you have the saturation problem resolved earlier in your April 19 post with 2 channels? What has changed? Is it possible some kind of high-gain elements are acting in a feedback fashion, stimul

and the bias in my earlobes many channels get railed on the GUI. If I just put on the bias not as much.

http://openbci.com/forum/index.php?p=/discussion/1481/how-to-become-de-railed

http://openbci.com/forum/index.php?p=/discussion/1481/how-to-become-de-railed

NOTE3: If I start an impedance test on the channel when the board is stuck (and is not self-recovering) it gives 0 ohms as if it senses it as RAILED.

There are two Search boxes in right column, for example looking for 'railed' produces:

15686 is the given physical voltage range from 0 of the values produced by the hardware, and for a 24-bit integer 8388608 is the digital range from 0. The data the computer gets is in the digital, 24-

While connecting with OpenBCI_GUI, the signal seems fine and no channel is railed

To confirm: The results I was making reference to was for the '[' test only. I continue to see the Railed result on channel's 9-16 with the electrodes on the head.

- Can you send along a screenshot of what the data looks like in the OpenBCI GUI. I take it most of the channels are RAILED but some are not?

I bought a cyton, and whenever I connect it to electrodes, or even run my fingers over the pins, they usually show RAILED on the GUI. 

In the Open BCI GUI I was getting a lot of RAILED or near-RAILED readings, and high amplitude, chaotic bursts of signal would come and go. Finding the PGA settings, I thought maybe there was some brea

If you are using a headset, and see "Railed" on more than one channel: suspect your Reference lead, ear clip, connections. You could try swapping with the Bias ear clip lead to see if it mak

Railed just means you have a poor connection between the pin on the board and the skin. Signal exceeds what can be plotted on the graph. Check some of these threads,

I got it connected now in Windows 10 and Linux. When I click Status it says Success: system is up. When I stream the data Channel 4 says Railed and sometimes channel 3 is also railed.

This is Chip @chipaudette 's code. I believe dark red is indicating RAILED or out of range. And the working electrodes are "averaged" into a kind of "heat map" using a color scale

This thread aims at collecting tips on how to get rid of "railed" channels. (As displayed in OpenBCI_GUI.) Please, anyone, who has experience on that write a comment!