Waters 2489, Обзор и руководство по обслуживанию

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June 11, 2015, 715004752 Rev. A
Page 37
2.6.6.1 Generate Autozero
To generate the Autozero function of the detector at the start of an injection, make
the connections summarized in the table and illustrated in the figure below.
Before you can generate an autozero from the 2695 separations module, you need to
configure the autozero signal at the detector’s front panel. The default autozero signal
is Low. See the discussion “Configuring event inputs (contact closures)” on page 64
for more information.
Figure 2–8: 2695 separations module connections to the detector for
autozero on inject
2.6.6.2 Generate a chart-mark on injection
To generate the chart-mark function on the detector at the start of an injection, make
the connections summarized in the table and illustrated in the figure below.
Table 2–4: 2695 separations module connections to the detector, to
generate autozero
2695 separations module (B
inputs and outputs)
2489 UV/Vis detector (II)
Pin 1 Inject Start Pin 9 Auto Zero +
Pin 2 Inject Start Pin 10 Auto Zero –
Table 2–5: 2695 separations module to the detector to make a chart-mark
2695 separations module (B
inputs and outputs)
2489 detector UV/Vis (II)
Pin 1 Inject Start Pin 6 Chart-mark
+
Pin 2 Inject Start Pin 7 Chart-mark –
1
2
3
4
5
6
7
8
9
10 Inject Start
+
Inject Start −
Ground
Lamp On/Off
+
Lamp On/Off
−
Chart-mark +
Chart-mark
−
Ground
Auto Zero
+
Auto Zero −
2489 connector II 2695 connector B
1
2
3
4
5
6
7
8
9
10
11
12 Inject Start
+
Inject Start
−
Ground
Stop Flow
+
Stop Flow
−
Hold Inject 1
+
Hold Inject 1
−
Hold Inject 2
+
Hold Inject 2