NEW BRUNSWICK SCIENTIFIC BioFlo 415, Manual To Operations

Page: 101 / 164

89
New Brunswick Scientific User’s Guide
15.1.1 Gas Control with 1 or No TMFC
If your system is equipped with no TMFC or one TMFC, you have the choice
of two
Operating Modes
in the Controller Setup screen: O2 Enrich and 3-Gas
in Fermentation mode (
see Figure 51
). Your system has 4 gas solenoid valves.
No TMFC means that all gas flow is manually controlled using a rotameter.
Figure 51: Controller Setup Screen (0-1 TMFC)
If you select O2 Enrich as the
Operating Mode
, the gas process loops you will
find in the SUMMARY screen are labeled Air (1) and O2 (2). If you select
3Gas, the process loops are labeled Air (1), O2 (2) and CO2 (4). The loops’
numbers, 1, 2 & 4, correspond to the gas connections on the cabinet (
see
Figure 1a
).
There is also a GasFlo loop when one TMFC is present; settings in this loop’s
gauge screen turn the TMFC on and off and control the gas flow rate.
15.1.2 Gas Control with 2 TMFCs
If your system is equipped with two TMFCs, the only
Operating Mode
available in the Controller Setup screen is O2 Enrich, because only two gases
can be brought into the unit (
see Figure 52 on the following page
).
The gas process loops you will find in the SUMMARY screen are labeled
AirFlo (1) and O2Flo (2). The loops’ numbers, 1-2, correspond to the gas
connections on the cabinet (
see Figure 1a
).
Select O2
Enrich for
Air and O
2
.
Select 3Gas
for Air, O
2
&
CO
2
.