How much "headroom" does a device amplifier have once it hits an Overload indicator?

I'm working with a 16ch Sirius HD-STGS

Ai configuration is Voltage, Scaling by Two Points (+/-10v= +/-5000lbs).

After reviewing the data I realized I over ranged the input with a max load of 5,048lbs. Not much, but it triggered the indicator.

It got me wondering how much headroom is built in before it hard-clips my data?

I also have a couple 8 channel Slices which I understand are dual channel. Does the same "headroom" apply to these as well?

In general, we would suggest performing this basic test for headroom, this is just an illustration of and really HARD clipped signal. It is hard to detect that you are near clipping by naked eye or in time domain. One way is to observe the signal harmonics in FFT. Linearity specification eg 0.01% can not be tested in this way and should be performed in small input increments with precision source calibrator.