If the voltage supplied to DMT152 is too low for reliable operation, or fluctuates heavily, or there is some serious problem that prevents
measurement, DMT152 will enter an error state. The error state is indicated by the following:
- Analog current output at 0 mA or 4 mA (according to selected range)
- Analog voltage output at 0 V
- Serial line outputs asterisk characters "*" instead of measurement data. For example: Tdf=****** 'C H2O=****** ppm