3 deactivation, 2 analog output, 1 programming of the 4-20 ma output – Tecfluid MT03F User Manual

Page 24: 2 current calibration for 4 and 20 ma

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7.6.1.3 Deactivation

The relay will be always at rest.

7.6.2 Analog

output

Before making a current calibration, be sure that the ammeter used for that is showing a
correct value.

7.6.2.2 Current calibration for 4 and 20 mA

The MT03F converter is delivered with the current output already calibrated. If you want to
correct a derive of the 4 or 20 mA current values because they do not coincide with the
ammeter used, it can be done by entering de ammeter value and pressing the key
(Enter). The ammeter will adjust its value and the MT03F screen will show the values of 4
or 20 mA again in the event the operation needs to be done again. More than one
adjustment can be necessary to do a complete calibration.

The flow rate corresponding to 4 mA and 20 mA can be programmed and the calibration

for these two values can be made as well.

7.6.2.1 Programming of the 4-20 mA output

Flow rate values equivalent to each current are entered directly.
The flow rate programmed for 20 mA must be higher than the programmed for 4 mA.
Otherwise, the current loop will always give 4 mA.

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