Adding A Recorder Offset To An Analog Output - Teledyne T300 Operation Manual

Setup Menu

5.9.3.9. ADDING A RECORDER OFFSET TO AN ANALOG OUTPUT

Toggle these
buttons to set
ther value of
the desired
offset.
134
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:
AIO CONFIGURATION SUBMENU
DIAG
PREV NEXT
DIAG AIO
SET>
Continue pressing SET> until you reach the
DIAG AIO
<SET SET>
DIAG AIO
SET>
DIAG AIO
<SET SET>
DIAG AIO
+
DIAG AIO
–
EXAMPLE
DIAG AIO
<SET SET> EDIT
Teledyne API – Model T300/T300M CO Analyzer
From the
ANALOG I/O CONFIGURATION
ENTR
AOUTS CALIBRATED: NO
CAL
output to be configured
CONC_OUT_2: 5V, OVR, NOCAL
EDIT
CONC_OUT_2: OUTPUT: 5V
EDIT
Continue pressing SET> until ...
CONC_OUT_2: REC OFS: 0 mV
EDIT
CONC_OUT_2: REC OFS: 0 mV
0 0 0 0
CONC_OUT_2: REC OFS: -10 mV
0 0 1 0
CONC_OUT_2: REC OFS: -10 mV
EXIT
EXIT
EXIT
EXIT
EXIT
ENTR EXIT
ENTR EXIT
EXIT
06864B DCN6314