NEW BRUNSWICK SCIENTIFIC BioFlo 4500, Руководство по эксплуатации

Страница: 129 / 214

New Brunswick Scientific Co., Inc. User’s Guide
129
NOTE:
As shipped from the factory:
•
Pump 1 shall be cascaded from the base output of pH
•
Pump 2 shall not be assigned
•
Pump 3 shall be cascaded from the antifoam output
•
The auxiliary output shall not be committed.
To cascade from the pH control loop to
PUMP 1
and
PUMP 2
:
•
At the touchscreen, go to the
GAUGE SCREEN
. Press the
CASC BUTTON
. The
CASCADE CONTROL SCREEN
will appear.
•
Select the control loop that you want to cascade from, in this case pH. The
CASCADE SCREEN
will appear.
•
The control loop selected, i.e. pH, will appear in the upper left as
CASCADE
FROM pH
. The loop name, pH, will also appear above the columns labeled
OUTPUT%
.
•
In the column labeled
CASCADE TO
, select
PUMP 1
in the first data box. If
PUMP 1
is not a selection, refer the instructions in this manual for adding a
loop.
•
In the column labeled
CASCADE MIN. SP
, enter the minimum setpoint for pH.
Regardless of output of the cascade-from loop, the setpoint of this cascade to
loop will not go below the value you enter here.