Речь идет об анализаторе кислорода.

Слово встречается в следующем контексте:
1. The output 4-20mA circuit is capable of driving a 600 Ohm load, while the viltage output needs at least a 10.000 Ohm load. Either will saturate at more than 125% of the nominal full scale range.
2. If the oxygen level becomes 200 ppm, the display will show 200 ppm, but the output will be saturated, and the alarms will both be on.

Заранее спасибо