90
BioFlo/CelliGen 115
y
M1369-0050
User’s Guide
11.6.2
Setting a Feed Pump to Harvest
A level probe can also be used to set up a feed pump to harvest.
Prior to autoclaving the vessel make sure that the level probe that you
wish to use is fully inserted into the vessel.
When the vessel is set up at the control cabinet, raise the probe to the level at
which you want harvesting to begin (i.e., above the current liquid level).
Never lower a probe after autoclaving!
1.
Open the
PUMP
screen.
2.
Select the feed pump you wish to pump liquid out of the vessel, and press
that pump’s
ASSIGNMENT
button to open the
PUMP ASSIGNMENT
screen (
see Figure 35
, repeated above).
3.
Select the
Lvl2 Wet
button, which corresponds to the probe’s connection
on the control cabinet.
In
WET
mode:
•
when the liquid is
not in contact
with the probe the pump is turned
off
.
•
when the liquid is
in contact
with the probe the pump is turned
on
.
11.6.3
Level Control Off
When
OFF
is selected from any level (Foam, HiFoam, Lvl2 Wet, Lvl 2 Dry, Acid or
Base) control mode menu, the pump is off.
11.6.4 Pump
Calibration
Pump flow rates are provided in Table 6 (
Section 11.4
). However, more
accurate flow rates through the various lines may be established by pre-
calibrating the pumps, using the
PUMP
screen. This screen controls all pump
parameters for the three standard fixed speed pumps supplied with each control
cabinet and for any additional pumps added through the available analog input
and output connections.
Using the
PUMP
screen, you can view total pump flow rate in ml/second and
set the pump’s cycle time, and assign each pump to one of eight functions
(None, Acid, Base, Foam/Lvl1, Lvl2Wet, Lvl2Dry—bearing in mind that the
“level dry” function turns the pump on when the probe is not in contact with
liquid;
see Section 11.1 for details
).
