Figure 11-2: Example Of Signal I/O Function - Teledyne 100E Instruction Manual

TROUBLESHOOTING & REPAIR
• The technician can view the raw, unprocessed signal level of the analyzer's critical
inputs and outputs.
• All of the components and functions that are normally under instrument control
can be manually changed.
• Analog and digital output signals can be manually controlled.
This allows to systematically observe the effect of these functions on the operation of the
analyzer. Figure 11-2 shows an example of how to use the signal I/O menu to view the
raw voltage of an input signal or to control the state of an output voltage or control
signal. The specific parameter will vary depending on the situation. Please note that the
analyzer will freeze it's concentration output while in the diagnostic signal I/O menu.
This is because manually changing I/O outputs can invalidate the instrument reading.
SAMPLE RANGE = 500.0 PPB
< TST TST > CAL
SETUP
CFG DAS RNGE PASS CLK
SETUP
COMM VARS
DIAG
DIAG I/O 29) PMT_TEMP=378.3 MV
PREV NEXT JUMP
200

Figure 11-2: Example of Signal I/O Function

NOX=XXX.X
SETUP
EXIT
MORE
HALT EXIT
PRNT EXIT
Exit returns to
DIAG display & all values
return to software control
Model 100E Instruction Manual
SETUP ENTER DIAG PASS: 818
8 1 8
DIAG SIGNAL I/O
PREV NEXT
DIAG I/O 0 ) EXT_ZERO_CAL=ON
PREV JUMP
NEXT
If parameter is an
input signal
DIAG I/O 19 REACTION CELL_HEATER=ON
)
PREV NEXT JUMP
DIAG I/O 19 REACTION CELL_HEATER=OFF
)
PREV NEXT JUMP
Press ENTR to enter
the diagnostics menu
EXIT
ENTR
Press ENTR again to
enter the SIGNAL I/O
EXIT
ENTR
Press PREV or NEXT
to scroll between
PRNT EXIT available I/O
If parameter is an output
signal or control
PRNT EXIT
ON
Toggles
parameter
ON/Off
PRNT EXIT
OFF
045150102 Rev XB1
menu
parameters