Agilent Technologies 6890 Series Service Manual page 651

1130 Actuators
Valve drivers
Valve drivers
The 6890 GC provides keyboard control for up to eight valve drivers which
are named Valve 1 through Valve 8.
Table 1130-1
Valve
Valves 1–4
Valves 5–6
Valves 7–8
There is a BCD input for controlling a multiposition valve. If a valve is
configured as a multiposition valve and the BCD is connected to this valve, a
position can be selected directly from the keyboard.
4 of 12
6890 GC Valve Designations
Driver
24 volt, 13 watt
24 volt, 100 mA
48 Vdc or 48 Vac rms
Valves
Agilent 6890 Gas Chromatograph Service Manual
Purpose
Normal valve operation
Relays/low power devices
Contact closures
Jun 2001