No Check Valve; No Check Valve Setting To On - Teledyne SyriXus 65x Installation And Operation Manual

Figure 5-8 No Check Valve Setting to ON
EAR99 Technology Subject to Restrictions Contained on the Cover Page
SyriXus Series Pumps Installation and Operation Guide
Section 5 Continuous Flow Introduction, Installation, and Operation
A check valve is not usually used with Ball Valves because of the
imposed flow resistance. It is recommended to turn ON the NCV
feature before operating the valves.
The 500xv syringe pump was designed for use with more viscous fluids
and is the model most frequently used without a refill check valve. The
N C V (NCV) feature is functional with all SyriXus series
O HECK ALVE
pump models.
Almost all syringe pumps are used with fluids that are less viscous. As
such, all SyriXus series controllers are shipped with the N
V (NCV) feature turned OFF. If the check valve is removed from
ALVE
the inlet tubing, this feature can be readily enabled using the key-
strokes shown in Figure 5-8.
(
MORE
(
MULTI
1. AB Pumps
2. CD Pumps
In Figure 5-8, when the '4' key (Multi-Pump) is pressed and the "AB"
or "CD" (if present) pump pair is selected, more than the two 'C
C ' options will be displayed. The N
ONST
applies to the two 'C
arrangements, or if the pumps are not in 'C
'6' (O O ) will not be displayed.
THER PTIONS
When the '3' key (NCV) is pressed as shown in the above figure, three
choices are displayed.
1. P P
RESSURE OINT
decrease to before the inlet valve is opened. The default (50 psi)
is generally reasonable for most laboratory liquids but can be set
to any pressure between 10 and 250 psi.
NOTE
1. Contin Const Flow
2. Contin Const Press
)
O O
THER PTIONS
NCV
- )
PUMP
1. Contin Const Flow
2. Contin Const Press
3. Function NCV
C
O HECK
C ' options. For the other pump
ONTIN ONST
ONTIN
– changes the pressure that the pump is to
C
O HECK
ONTIN
V option only
ALVE
C ' Mode, option
ONST
5-17