Detecting terminal mode
danger zone signal：input current 4～20mA
Safety Zone Signal：input current 4～20mA
output accuracy：0.25％（20℃）
power voltage：20～27VDC
inner power consumption：≤200mW
operating mode:
danger zone signal：output current 4～20mA
Safety Zone Signal：input current 4～20mA
input accuracy：0.1％（20℃）
power voltage：20～27VDC
inner power consumption：≤200mW
