Waters 2998, Overview And Maintenance Manual

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December 5, 2017, 715004753 Rev. B
Page 55
2. Click Troubleshoot > Calibration Values.
3. In the Calibration Values dialog box, Click Read and then close.
4.1.5 Displaying the rear-panel interface connections
You can use the console to determine the status of input/output signal connections or contact
closures on the rear panel of the detector. This display gives you a real-time status of the
instrument’s signal connections. A green LED symbol indicates a signal cable is connected to the
terminal. A red LED symbol indicates no signal cable is connected to the terminal.
To display 2998 PDA detector rear panel interface connections:
1. In the console, select 2998 PDA Detector from the system tree.
2. In the PDA detector information window, click Troubleshoot > Rear panel.
Result:
The PDA Detector Rear Panel dialog box appears.
The following table describes the 2998 PDA detector I/O connections:
Table 4–1: 2998 PDA detector analog-out/event-in connections
Signal connections Description
Analog 1 (Out) Method programmable analog output.
Analog 2 (Out) Method programmable analog output.
Switch 1 (Out) Controls a timed event or threshold level and is a
user-programmable auxiliary output.
Switch 2 (Out) Controls a timed event or threshold level and is a
user-programmable auxiliary output.
Inject Start (In) Activates timed events by triggering the run-time clock to start.
Lamp On/Off (In) When the input is triggered, the lamp is extinguished.
Chart Mark (In) Adds a chart mark (at 10% of full scale) to either or both analog
output channels (Signal Out 1 and Signal Out 2) and is
configurable.
Auto Zero (In) Calculates an offset value that, when added to the sample
signal, makes the resulting baseline signal zero.