NEW BRUNSWICK SCIENTIFIC BioFlo 4500, Manual To Operations

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BioFlo 4500 M1254-0050 User’s Guide
128
•
Select the pH control loop from the list by pressing on pH.
•
At the
CALIBRATE WINDOW
, ensure that the
SET ZERO
function is
selected, and use the onscreen keyboard to enter the measured pH value
into the
ZERO STD
text box. Use the
Clr, +/- BUTTON
to clear any
unwanted information from the text box. Press the set
ZERO BUTTON
.
•
Press
CLOSE
to exit this window.
16.2 Setting Up a Cascade from pH to Pumps
On the BioFlo 4500, the installed pumps are numbered 1 through 3. A fourth
auxiliary pump may also be utilized. This is accomplished by connecting an
auxiliary pump with the electrical receptacle provided on the rear panel of the
console.
When setting up a pump for a particular function, pumps may be set up
individually and controlled individually or cascaded from an appropriate control
function such as the control of pH. For example, for the control of pH using an
acid feed and a base feed, the pumps that control acid and base feed can be
cascaded from pH.
In this example,
PUMP 1
will function as a base feed and
PUMP 2
will function as
the acid feed pump from pH.