Teledyne gfc 7000ta Pin assignments for the Status Outputs are, Status Output Pin Assignments

Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer

The pin assignments for the Status Outputs are:

Table 6-24: Status Output Pin Assignments

OUTPUT #	Status Definition	Condition
1	SYSTEM OK	On if no faults are present.
2	CONC VALID	On if CO2 concentration measurement is valid.
		If the CO2 concentration measurement is invalid, this bit is OFF.

3HIGH RANGE On if unit is in high range of DUAL or AUTO range modes.

4ZERO CAL On whenever the instruments zero point is being calibrated.

5SPAN CAL On whenever the instruments span point is being calibrated.

6DIAG MODE On whenever the instrument is in diagnostic mode.

7	ALARM1	On whenever the measured CO2 concentration is above the set point for
		ALM1
8	ALARM2	On whenever the measured CO2 concentration is above the set point for
		ALM2
D	EMITTER BUS	The emitters of the transistors on pins 1-8 are bused together.
+	DC POWER	+ 5 VDC
	Digital Ground	The ground level from the analyzer’s internal DC power supplies.

Teledyne Analytical Instruments 144