SyriXus Series Pumps Installation and Operation Guide
Section 3 Basic Programming and Operation
3-23
EAR99 Technology Subject to Restrictions Contained on the Cover Page
3.12.3 External Control for
Refill
The refill option allows you to set the refill rate, or set the pump to
automatically refill when a certain volume is reached. From Menu 2,
the system can be programmed to automatically refill a pump based
on an external analog signal, with a range of 0 to 11.5 volts.
•
To access this feature, press
MENU
>
MORE
(A)
>
EXTERNAL
(3).
Figure 3-12 External control for refill menu
•
To set the full-scale value (maximum 11.5 volts), press
SET
RANGE
(
A
), enter the desired value, and press
ENTER
.
•
To place the pump under external control, press
EXTERNAL
(
B
).
The feature will toggle from OFF to ON.
•
To SET the external control for refill, press
REFILL
(
C
). The
feature will toggle from
OFF
to
ON
.
3.12.4 Calculation
Examples
•
Flow Rate - If
MAX
FLOW
is set at 25 mL/min in the
LIMITS
menu
and the desired scale factor is 5.0 volts per 20 mL/min, do the
following to determine the analog voltage range:
In this example, the analog voltage range would be 0.0–6.25
volts.
•
Pressure - If
MAX
PRESS
is set at 510.2 ATM in the
LIMITS
menu
and the desired scale factor is 2.0 volts per 100 ATM, do the
following to determine the analog voltage range:
In this example, the analog voltage range would be 0.0–10.204
volts.
NOTE
If the controller is equipped with 4-20ma input, then the low signal is
4ma (stop) and high signal is 20ma (run).
FULL SCALE INPUT RANGE < XX.XXX VOLTS
SET RANGE EXTERNAL
REFILL
OFF
OFF
PREVIOUS
25
5
20
------
6.25
=
510.2
2
100
---------
10.204
=
