Rapid Press - Teledyne D series Installation And Operation Manual

D Series Syringe Pumps
Section 3 Basic Programming and Operation
Flow rate limit for pressure
control

3.8.8 RAPID PRESS

3-12
These features are set using the softkeys A - C, which toggle the
feature on and off.
Note
The Max Press (maximum pressure) display on and alarm on
options cannot be disabled.
Display
When a limit has been exceeded, this feature causes the display
to automatically flash an
off this function, press softkey A once to toggle to:
Alarm
When a limit has been exceeded, this feature causes the pump to
automatically beep a warning. To turn off this function, press
softkey B once to toggle to:
Shutdown
When a limit has been exceeded, this feature causes the pump to
shut down. To turn off this function, press softkey C once to
toggle to:
W h e n t h e p u m p i s c o n t r o l l i n g p r e s s u r e ( C O N S TA N T
PRESSURE MODE), the flow rate is not user-controlled, and
may range up to the maximum flow of the pump. In some cases,
it is desired to limit the rate of pumping during system pressur-
ization. This can be done by selecting limit 5, FLOW LIMIT. The
FLOW LIMIT value is used as the upper range of flow rate
during pressure control. This limit is not the same as the MAX
FLOW limit, which is a threshold above when the pump is
stopped, or an alarm is activated as selected by the operator.
To save your changes and return to the main menu, press softkey
D, PREVIOUS.
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 automatically to the constant flow setpoint. This is
helpful when you are operating 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.
or message. To turn
OVER UNDER LIMIT
OFF
DISPLAY
OFF
ALARM
ON
SHUTDOWN