June 11, 2015, 715004752 Rev. A
Page 117
Figure 5–5:
Auto-zero offsets diagnostic display
5.2.2.4
Setting a fixed absorbance value
From the Input & Output choice list, press 2 (Fix absorbance) to set a fixed
absorbance value for channel A or channel B. The allowable range is from –4.0000 AU
to
+
4.0000 AU. For convenience, you can also specify sensitivity (AU) using this
diagnostic test. The allowable AU range is from
+
0.0001 to
+
4.0000 AU.
Figure 5–6:
Fix absorbance diagnostic display
This test sets the voltages on the analog output channels based on the current AU
setting. This is a sticky diagnostic test.
5.2.2.5
Setting a fixed voltage output
From the Input & Output choice list, press 3 (Fix voltage) to select a voltage for the
analog output. You can select a voltage for both output channels in the –0.10 V to
+
2.10 V range.
Figure 5–7:
Fix Voltage diagnostic display
The voltage is driven on the selected analog channel (A or B). This is a sticky
diagnostic.
To monitor contact closures and setting switches:
1. From the Input & Output choice list, press 4 (Contact closures & events) to
monitor the four contact closure inputs and to control the two switch outputs.
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