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Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual
Setup Mode Menus
117
5.9.3.9. ADDING A RECORDER OFFSET TO AN ANALOG OUTPUT
Some analog signal recorders require that the zero signal be 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 T200 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 5-5) 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 RANGE: 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
the desired
offset value.
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
06858E DCN7057
Содержание T200
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