Tecfluid CP420R - Manual (Page 6)

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To do this, by pushing the push button marked with the arrow pointing upwards, the
blinking digit will increase. On the ninth digit it turns again to zero.
By pressing the push button marked with the arrow pointing left, the cursor will move to
the next digit to be modified. On the seventh digit, by pressing this push-button the cursor
will move back to the first digit on the display.
When the value of the pulses per litre is correct, by pushing the two push buttons PROG
at the same time, this value will be automatically saved into the memory and the units
selection screen will appear .
To change the flow rate units, the push button marked with the arrow pointing upwards,
must be pushed. To change the totalized volume units, the push button marked with the
arrow pointing left must be pushed.
The possible flow rate and totalized volume units are the following:
Flow rate:
There are 9 combinations made from 3 volume units and 3 time units.
Volume / time
l (litres) / s (second)
m3 (cubic meters) / m (minute)
ga (gallons) / h (hour)
Totalized volume:
There are 3 possible volume units, l (litres), m3 (cubic meters), ga (gallons)
Note: 1ga = 3.785 litres.
With the working units chosen, by pressing the two push buttons PROG, we go to the
loop current programming.
In the first screen we program the flow rate equivalent to 4 mA (lower range). The
measuring units will be the ones chosen in the previous screen. The push buttons have
the same function as the pulses per litre programming.
After that, we program the flow rate equivalent to 20 mA (upper range).