Displaying Current Setpoint - HP 5890 Series II Plus Reference Manual

Signal Output
Zeroing signal output
The function of
the detector signal. Background signal sources include the detector itself
(background level depending upon detector type), column bleed, or
contaminants in supply gas(es).
Displaying current
Current
signal channel key (
ZERO
displays are shown in Figure 5•1.
Figure 5-1
Typical
Table 5•1lists conversions between detector units and the scale used for
ZERO
Table 5-1.
ues
Detector
FID & NPD
TCD
ECD
is to subtract a constant background signal from
ZERO
ZERO
setpoint value is displayed by pressing the appropriate
ZERO
SIG 1
alone, if the desired signal channel is already displayed). Typical
SIG 1
SIG 2
ZERO
ZERO
Displays
ZERO
setpoint values.
Conversions from Detector Units to
setpoint
or ), followed by
SIG 2
ACTUAL
ZERO
ACTUAL
NOT INSTALLED
ACTUAL
1 104.5
ACTUAL
LIMIT = 83000
Conversion
(1.0 unit = )
ZERO
}
1.0 pA (1.0 10
}
¿
25 V (2.5 10
10 Hz
(or simply press
ZERO
SETPOINT
104.5
SETPOINT
SETPOINT
OFF
SETPOINT
Setpoint Val-
ZERO
- 12
A)
- 5
V)
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