NEW BRUNSWICK SCIENTIFIC BioFlo 4500, Руководство по эксплуатации

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New Brunswick Scientific Co., Inc. User’s Guide
111
The four pump control loops can be used to calibrate each pump. To do so, the
control mode and output action of each loop must be changed to
TOTAL
and
DIRECT
. When a loop is configured with a control mode of
TOTAL
, the display
gauge displays the sum of its output since last reset. This control mode is typically
used to monitor accumulated totals of pump or other actuators. Calibrating this
type of loop consists of running the pump or other actuator for a known period of
time, and measuring the accumulated total in volume, mass, etc.
To calibrate a total control loop:
•
In the
GAUGE SCREEN
, set the loop setpoint from the display gauge to zero.
•
From the
GAUGE SCREEN
, select the
CAL BUTTON
. The
CALIBRATION
SELECTION WINDOW
will appear.
•
Select the control loop you wish to calibrate by pressing on it. A
CALIBRATION SCREEN
will appear.
•
In the function window, press the
SET TOTAL FUNCTION
. Enter 0 using the
onscreen keypad and press the
SET TOTAL BUTTON
.
If the pump or actuator used has been calibrated, and its flow or transfer
rate is known:
•
In the function window, select the
RATE FUNCTION
. The
SET TOTAL
BUTTON
will change to a
SET RATE BUTTON
.