Teledyne 460H Status Output Summary Table, 2 Status Output Truth Table, Sensor, Invalid, Lamp

7.6 Status Output Summary Table

Table 7-2 below is a logic truth table summarizing the recommended actions based on the states of the four status outputs. A ‘1’ indicates the output is ON, a ‘0’ indicates the output is OFF, and ‘X’ indicates the output is in either state.

Table 7-2: Status Output Truth Table

Sensor	Invalid	Lamp	Cell	Actions
OK	Reading	Low	Dirty
1	0	0	0	Normal operation, no action
				required
0	X	X	X	Service required
1	1	X	X	Check Pressure > 45 psia
				Verify that concentration has
				not exceeded full scale range
				of sensor.
				Calibrate at Zero.
1	X	1	X	Lamp adjustment useful,
				though not required
1	X	X	1	Calibrate at zero
				Clean Cell

P/N 03662D Teledyne API Model 460H O3 Monitor Operator Manual - Page 36