What is the absolute lowest reading that the 8800T is capable of in electronics and software?
In ppm and dew point on analog channel and the display the unit will read down to .013 ppm but it will be displayed in scientific notation. If the 4-20 mA is calibrated over the full range of the sensor (4 mA = .013 ppm to 20 mA = 23597 ppm) the mA resolution is .36 ppm. Obviously if the range is reduced, the resolution of the 4-20mA gets better. It is 16 bit so we can resolve .00024 mA. The analog output cannot read lower than 4mA under normal conditions. If the unit is reading something other than the 4-20 mA range there is a problem.
