Rapid Press; Disp; Acc Ctrl - Teledyne SyriXus 65x Installation And Operation Manual

3.8.8 RAPID PRESS

3.8.9 DISP

3.8.10 ACC CTRL

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SyriXus Series Pumps Installation and Operation Guide
This option is available when operating in the Constant Flow Mode
and in the two-pump concentration Gradient Mode. It allows rapid
pressurization to a stable pressure point and then switches automati-
cally to the Constant Flow setpoint. This is helpful when you are oper-
ating at a low flow rate but wish to rapidly pressurize a solvent.
1. Press CONST FLOW to put the pump in Constant Flow Mode, or
enter a two-pump concentration gradient.
2. Press RAPID PRESS.
3. The controller will display maximum flow rate and target pres-
sure setting. If these values are correct, press 'D' to continue
rapid pressurization.
4. If you know approximately what the pressure will be when the
system is stable, enter this value as a target pressure. Press 'A'
and enter the desired pressure value. This should shorten the
time required to stabilize the system pressure.
While pressurizing some working fluids (such as CO
generated because of compression work. Use of a temperature con-
trol jacket (described in Section 2.4.1 "Temperature Control Jacket")
for cooling, will reduce the time required to stabilize the system pres-
sure.
5. If you would like to limit the maximum flow rate during the
rapid pressurization phase, press 'B' and enter the desired flow
rate limit.
6. Press 'D' to continue rapid pressurization.
The DISP key activates Dispense Mode, for applications such as
reactant feed and batch delivery, where a specified volume is pumped.
Refer to Section 3.10.3 "Dispense Mode" for programming steps.
The ACC CONTROL key will allow you to manually operate acces-
sories (such as valves) via the Digital Output terminals on the back of
the controller.
1. Press ACC CTRL.
2. From the accessory control menu, use the number keys 1-8 (1-A
INLET, 2-A OUTLET, 3-B INLET, 4-B OUTLET, 5-C INLET, 6-C
OUTLET, 7- D INLET, 8- D OUTLET) to toggle the desired valve
open or closed. (Numbers 1-8 represent digital output terminals
1-8, respectively).
3. To exit, press PREVIOUS (D).
Section 3 Basic Programming and Operation
NOTE
), heat will be
2
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