AP2-1 Current Loop unit indicates mass as:
- absolute value (no sign),
- positive values exclusively,
- mass value with sign.
The AP2-1 is intended for cooperation mainly with scales operated via PUE C/31 and PUE 7 indicators. It is housed in a plastic casing, and powered with power supply 230V/5VDC. The AP2-1 and the power supply are sold as a set. The current circuit is led through 1.7-meter-long cable.