![envea PicoFlow Operating Instructions Manual Download Page 29](http://html1.mh-extra.com/html/envea/picoflow/picoflow_operating-instructions-manual_2415514029.webp)
29
4.7
Analogue output 3
Submenu
4.7.1 Calibration 4 mA
Selection:
The current output can be set via key
set output current
functions and adjusted at the receiving end.
4.7.2 Calibration 20 mA
Selection:
The current output can be set via key
set output current
functions and adjusted at the receiving end.
The current output can be calibrated that the zero point (output of 4 mA) is applied to the background noise
of the measuring point. If the noise level decreases due to process changes, material caking or other aging
effects, less than 4 mA can be output at the analog output. In this way, a zero offset can be detected (zero
point drift).
If this function is not required for process-technical reasons, the zero point must be set during calibration on
a raw value of zero and / or the
4.1 Lower limit
must be set to 4 mA.
The PicoFlow gives only to analog output 1 a signal for the flow rate.
If the settings of the 4 mA or 20 mA signal are changed, the checkbox
Overwrite calibration
must be set.