Waters 2998 Overview And Maintenance Manual page 37

Figure 2–10:
eSAT/IN module
Manual injector
2.6.3.4 Connecting injection trigger signals
The detector accepts the following injection-trigger signals from a manual injector:
• Inject-start signal, from a contact-closure signal, with each injection
• Auto-zero signal to adjust the zero offset of the detector each time the injector makes an
injection
Each time the detector receives a signal from an injector, it performs the corresponding auto-zero
or inject-start function.
To send an auto-zero or chart mark signal from an injector to the detector, connect cables as
shown in the following tables and figures.
The firmware defaults to auto zero on injection.
Tip:
Table 2–7:
2998 PDA detector (connector A)
Pin 1, inject start  (red)
Pin 2, inject start – (black)
Analog output connections to the eSAT/IN module
Inject-start connections to an injector (pulse duration 0 to 10 seconds)
December 5, 2017, 715004753 Rev. B
PDA detector connector B
Red
Black
Shield
Injector connector
Terminal connectors
Page 37

1 Analog 1

2 Analog 1
3 Ground

4 Analog 2

5 Analog 2

6 Switch 1

7 Switch 1
8 Ground

9 Switch 2

10 Switch 2