Agilent Technologies Turbo-V 551 Rack Notice De Mode D'emploi page 229

17
Technical Information
Connection J1 Remote I/O Interconnections
Figure 19 Vent and Purge Valves diagram for "Autotime" mode
Controlled Venting
In the following conditions the Vent Valve performs a Controlled Venting.
If WIN 125 = 1 (On Command mode), WIN 122 = 1 and the pump is in
BRAKING status;
If WIN 125 = 2 (Auto Pump Speed mode) and the pump is in
BRAKING status.
During a Controlled Venting procedure the Vent Valve opening time
is modulated so that the pump deceleration quickness is maintained
in the range between 3 and 5 Hz/s. The timing is adjusted every 10
seconds.
Turbo-V 551 Rack Controller User Manual / 87-901-031-01 (A) 229/288