151
Signal Handling
Using the signal control tables
A conversion factor may be involved when interpreting Value—for example,
one FID unit is one picoamp; one ECD unit is 5 Hz (1 Hz for the µ-ECD). The
units for detector and other signals are listed below.
Table 19 Signal Conversions
Signal type 1 display unit is equivalent to:
Detector:
FID, NPD
1.0 pA (1.0 × 10
-12
A)
FPD
150pA (150 ×10
-12
A)
TCD
25 mV (2.5 × 10
-5
V)
ECD 5 Hz
µ-ECD 1 Hz
Analog input board
(use to connect GC to non-Agilent detector)
15 µV
Nondetector:
Thermal
1°C
Pneumatic:
Flow
Pressure
Diagnostic
1 mL/min
1 pressure display unit (psi, bar, or kPa)
Mixed, some unscaled
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