... states control, manual control4. Control output: Relay contact point: AC250V 3A (resistance) logical voltage DC 0. 5V. Start pulse over zero: ... transport: Optical couple control silicon 1 A 600V, 0~10mA, 0~20mA current output (below load resistance 600 ohms)5. Alarm type ... alarm, below low limit alarm6. Transmitter output: 0~10mA, 4~20mA, 0~5V, 1~5V8. Power output: DC24V(used in double line transmitter ...