Teledyne T300, Operation Manual, Page: 136 / 426

Setup Menu Teledyne API – Model T300/T300M CO Analyzer
134
5.9.3.9. ADDING A RECORDER OFFSET TO AN ANALOG OUTPUT
Some analog signal recorders require that the zero signal is significantly different from
the baseline of the recorder in order to record slightly negative readings from noise
around the zero point. This can be achieved in the T300/T300M by defining a zero
offset, a small voltage (e.g., 10% of span).
To add a zero offset to a specific analog output channel, select the ANALOG I/O
CONFIGURATION submenu (see Figure 5-3) then press:
EXAMPLE
DIAG AIO CONC_OUT_2: 5V, OVR, NOCAL
<SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2: REC OFS: 0 mV
<SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2: OUTPUT: 5V
SET> EDIT EXIT
DIAG AIO CONC_OUT_2: REC OFS: 0 mV
+ 0 0 0 0 ENTR EXIT
DIAG AIO CONC_OUT_2: REC OFS: -10 mV
<SET SET> EDIT EXIT
DIAG ANALOG I/O CONFIGURATION
PREV NEXT ENTR EXIT
Toggle these
buttons to set
ther value of
the desired
offset.
Continue pressing SET> until ...
DIAG AIO CONC_OUT_2: REC OFS: -10 mV
–
0 0 1 0 ENTR EXIT
Continue pressing SET> until you reach the
output to be configured
DIAG AIO AOUTS CALIBRATED: NO
SET> CAL EXIT
From the
AIO CONFIGURATION SUBMENU
06864B DCN6314