NEW BRUNSWICK SCIENTIFIC BioFlo 415 Manual To Operations page 14

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On initial set-up, prior to operation, check that all impellers are tightly
fastened to the drive shaft.
As soon as the heater is connected to the Control Cabinet, you must make sure
there is water in the vessel jacket. Do not plug the heater cable in to the
cabinet unless the vessel jacket has been primed.
Before turning on the main power switch, make sure that: (1) the input water
hose is connected, the drain line is connected and the water supply is turned on;
(2) the vessel is in place and the quick-connect water lines are connected to the
vessel's heat exchanger; (3) the power cord is properly connected to the control
cabinet and plugged into a suitable power outlet.
Be sure to wear protective gloves when installing a glass electrode.
We recommend that you avoid the use of hydrochloric acid (HCl)
with the BioFlo 415 for pH control or any other purpose, because HCl corrodes
stainless steel. Over time, it will severely damage the vessel, a costly
component to replace, and other stainless steel components.
Phosphoric and sulfuric (10% maximum concentration) acids are acceptable and
are commonly used for pH control.
Never let a pH probe rest on its tip, and never leave a pH probe in DI water.
There must be liquid in the vessel for sterilization. Never begin the
sterilization process if the vessel is empty.
If Sterilization Temperature does not reach 121.5ºC, make sure the water
supply pressure is not too high (max. 10 PSIG).
Proper installation of the RTD is essential to temperature control.
Proper pH control is critically dependent on tubing size, which should be as
small as possible. Consult Table 9 in Section 13.3 for guidance.
When selecting an external pump to operate with your system, please
consult with your local sales representative to be sure the model you choose is
compatible with your BioFlo 415.
Be sure to set the dip switches correctly when using either 4-20mA or 0-5V
inputs/outputs.
Acknowledging alarms is NOT a replacement for correcting the condition
that triggered the alarm. Diagnose the cause of the alarm condition and rectify
the situation to ensure proper operation of your BioFlo 415.
Never clean the vessel or its components or the control cabinet with abrasive
chemicals or materials.
Never let a DO probe rest on its tip.
BioFlo 415 M1360-0050
CAUTION Page
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User's Guide