Internal electronic status leds, Cpu status indicator, Figure 10-2: example of signal i/o function – Teledyne GFC-7000T - Trace CO2 Analyzer - manual User Manual
Page 242
Troubleshooting
Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments
224
Toggles parameter
ON/OFF
Exit returns to
DIAG display & all values
return to software control
DIAG SIGNAL I/O
PREV
NEXT
ENTR
EXIT
DIAG I/O
0 ) EXT_ZERO_CAL=ON
PREV
NEXT
JUMP
PRNT EXIT
DIAG I/O
22
)
WHEEL_HTR=
ON
PREV NEXT JUMP
ON
PRNT EXIT
DIAG I/O 28) SAMPLE_PRESSURE=2540 MV
PREV
NEXT
JUMP
PRNT EXIT
DIAG I/O
22
)
WHEEL_HTR=
OFF
PREV NEXT JUMP
OFF
PRNT EXIT
If parameter is an
input signal
If parameter is an output
signal or control
SETUP X.X
SECONDARY SETUP MENU
COMM VARS
DIAG
EXIT
SAMPLE
ENTER SETUP PASS : 818
8 1 8
ENTR
EXIT
SETUP X.X
PRIMARY SETUP MENU
CFG DAS
RNGE
PASS CLK
MORE
EXIT
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SETUP
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, I
2
C 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