Internal electronic status led’s, Cpu status indicator, Figure 11-2: example of signal i/o function – Teledyne GFC-7000E - Trace CO2 Analyzer User Manual
Page 200
Model GFC7000E Instruction Manual
TROUBLESHOOTING & REPAIR PROCEDURES
04584 Rev A1
189
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 11-2: Example of Signal I/O Function
11.1.4. Internal Electronic Status LED’s
Several LED’s are located inside the instrument to assist in determining if the analyzer’s CPU, I
2
C
buss and relay board, GFC wheel and the sync/demodulator board are functioning properly.
11.1.4.1. 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 seconds, DS5 should flash on and off. If characters are written to the front panel display
but DS5 does not flash then the program files have become corrupted, contact customer service