... ,OP1,AU1,AU2,RUN which respectively stand for output, first alarm, second alarm, and working condition. 1.2 Time programm setting:In ... to modify. Press till it shows "t1", we can set time.3. Model Code SymbolThe type of AI-216P is made up ... output ,Relay contact output ,open normallyAlarm function: High Alarm, Lower limit alarm,Deviation High Alarm.Power supply voltage rating: 100-240VAC, -15%, +10 ...