The TBX AES 400 module gives a choice of voltage ranges, current ranges, thermocouple ranges and thermoprobe ranges for each of its inputs.

For the selected range, the module performs an overflow check: it checks that the measurement is between a lower and upper limit.

The measurement area is located in the nominal area.

Above the nominal area, the overflow is tolerated up to the overflow limits.

If the values provided by the application are outside the limits, the value of the overshot limit is saturated and the overshoot is indicated.

The module continues to provide the converted value until saturation of the converter or the display format (+32767/-32768), even if the validity of the measurement is not guaranteed.

The user can, via the overflow bit, avoid taking these measurements into account.

For voltage ranges, the module authorizes a 5% overflow for the positive electrical scope covered by the range.

Range overflow corresponds either to a dynamic overflow of the acquisition system, or to an overflow of the standard sensor measurement area, or to a dynamic overflow of the compensation temperature (‐5°C to +85°C). The use of internal compensation in a standard environment (0°C to +60°C) is compatible with the thresholds -5°C to +85°C.