Tecfluid XT5 - Manual (Page 13)

3.2.3 Pulse output
In this screen, there are two options.
a) Frequency output (Hz). This is meant for transmitting the instantaneous flow rate to a
remote unit. The output pulse frequency for a flow velocity of 5 m/s is programmed
here (see limits in 9.3).
b) Pulse output per unit of volume (P/U). This is meant for remote totalizing. The number
of pulses per unit of volume totalizer are programmed here. The pulse width is 80 ms.
The maximum frequency is 6.25 Hz.
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3.2.5 Damping
The Flomid/Flomat XT5 flow meter has an adaptive filter (damping) to provide stable flow
rate and analog output readings in the presence of continuous flow rate fluctuations.
The configuration of this filter can be very useful in the cases where the flow rate readings
have some instability (due to air bubbles, solids in suspension, etc…).
First the pulse output mode (Hz or P/U) is selected using the (↑) key. Once the output
mode is selected, touch the (←) key and then enter the corresponding numerical value for
the frequency at 5 m/s or pulses/unit according to the output mode selected.
3.2.4 Cut off
The sensor Flomid/Flomat with converter XT5, being an electromagnetic flow meter, has
its maximum deviation in the low end of its working range. Due to this, a cut off flow rate
can be configured, that means, the flow rate below which the flow rate indication will be
zero.