AS/NZS 3947.5.6:2000
Low-voltage switchgear and controlgear - Control circuit devices and switching elements - D.C.interface for proximity sensors and switching amplifiers (NAMUR)
standard by Australian/New Zealand Standards, 01/01/2000
Applies to proximity sensors connected for operation by a two-wire connecting cable to the control input of a switching amplifier. The switching amplifier contains a d.c. source to supply the control circuit and is controlled by the variable internal resistance of the proximity sensor. This Standard is identical with and reproduced from IEC 60947-5-6:1999.