Weidmuller TWI-1 - Signal isolator in 2-wire design, 1-channel - Handbuch (Seite 13)

1
ZeROandSpANadjustment
The ZERo and SPAN controls are on the front panel of the transmitter.
Turn the control clockwise to increase the output level.
1. Connect up the instrument according to the table above.
. Set the input source to 0.00 V or 4.00 mA.
. Turn the ZERo adjustment until the output is at 4.00 mA.
4. Set the input source to 10.00 V or 0.00 mA.
5. Adjust the SPAN control until the output is at 0.00 mA.
6. Recheck the ZERo adjustment.