Pump Control Mode; Pump Flow Rate & Calibration Methods - NEW BRUNSWICK SCIENTIFIC BioFlo CelliGen 115 Manual To Operations

11.3

Pump Control Mode

There are three available control modes for each pump, as explained in Table 5:
Control Mode
Off
On
Prime
NOTE:
If pumps are linked to a cascade, this may affect the ability to manually
change setpoints and control modes.
To select a Control Mode for any pump, press the appropriate button in the Control
Mode pane of the
11.4 Pump Flow Rate & Calibration Methods
The pump will always run at the same speed, but its flow rate depends on the diameter
of tubing you use. Table 6 provides the pump flow rates according to various tubing
diameters:
Tubing Wall Thickness
Inside Diameter: inch (mm)
12 RPM* Flow ml/minute (50 Hz)
12 RPM* Flow ml/minute (60 Hz)
*Pump speed will vary slightly depending on frequency
To calibrate any pump with the tubing you have selected:
1. Load approximately three feet of the tubing into the pump head.
2. Set up a reservoir with water at the input end of the tubing and an empty graduated
cylinder, capable of measuring small quantities, at the output end of the tubing.
3. Read this step completely before you do it: with the input end of the tubing in
the water reservoir, prime the tubing line by pressing the pump's
allow it to run only until liquid starts to flow into the tubing: DO NOT allow the
liquid to run into the graduated cylinder yet.
New Brunswick Scientific
Table 5: Pump Control Modes
The pump will receive no input and will not operate.
The pump will operate according to the parameters you
have set.
This button toggles the pump on or off manually: as long
as you press the button, the pump will run continuously.
When you release the button, the pump will stop running.
PUMPS gauge screen (see Figure 36).
Table 6: Flow Rate per Tubing Size
1/50 (0.5) 1/32 (0.8) 1/16 (1.6)
0.25
0.30
Description
1/16 inch (1.6mm)
0.60 2.55
0.72 3.06
87
1/8 (3.2) 3/16 (4.8)
9.44 19.0
11.3 22.9
Prime
button, but
User's Guide