Tecfluid TR2420 - Manual (Page 5)

5
If this setup must to be changed, one may proceed in two different ways as follows:
a) Directly with the instrument.
When opening the box cover of the transmitter, 2 push buttons (P1 and P2) and a LED
indicator (L1) can be seen, as shown in page 4.
P1 is the 4 mA programming push button. Likewise P2 is the 20 mA programming push
button.
The push buttons are protected by a pulse time. A short press, less than two seconds, will
not program the instrument.
With the transmitter powered and the write protect jumper placed (page 4), move
the float to the point where you want to transmit 4 mA. Press P1 until the red LED flashes.
Move the float to the point where you want to transmit 20 mA. Press P2 until the green
LED flashes.
Check the operation with a multimeter.