Teledyne gfc 7000ta operation manual Internal Electronic Status LEDs, CPU Status Indicator

Troubleshooting Model GFC7000TA Carbon Dioxide Analyzer

SAMPLE*		RANGE = 500.000 PPM		CO2 =X.XXX
< TST TST > CAL					SETUP
SETUP X.X			PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE					EXIT
SETUP X.X SECONDARY SETUP MENU
COMM	VARS		DIAG		EXIT
SAMPLE		ENTER SETUP PASS : 818
8		1	8	ENTR	EXIT
DIAG		SIGNAL I/O
PREV	NEXT		ENTR		EXIT
DIAG I/O			0 ) EXT_ZERO_CAL=ON
PREV NEXT JUMP				PRNT EXIT

	If parameter is an
	input signal
DIAG I/O 28) SAMPLE_PRESSURE=2540 MV
PREV NEXT JUMP	PRNT EXIT

If parameter is an output

signal or control

DIAG I/O	22) WHEEL_HTR=ON
PREV NEXT JUMP		ON PRNT EXIT

Toggles parameter

ON/OFF

DIAG I/O	22) WHEEL_HTR=OFF
PREV NEXT JUMP		OFF PRNT EXIT

Exit returns to

DIAG display & all values return to software control

Figure 10-2: Example of Signal I/O Function

10.1.4. Internal Electronic Status LEDs

Several LED’s are located inside the instrument to assist in determining if the analyzer’s CPU, I2C bus and relay board, GFC wheel and the sync/demodulator board are functioning properly.

10.1.4.1. CPU Status Indicator

DS5, a red LED, that is located on upper portion of the motherboard, just to the right of the CPU board, flashes when the CPU is running the main program loop. After power-up, approximately 30 to 60

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