Blue-White FLEX-PRO A4 ProSeries Peristaltic Pump - Manual (Page 15)

Page 15 Flex-Pro
4.1 Max RPM cut-off
The maximum motor RPM can be limited to reduce the possibility of overfeeding
chemical into the system. Note that the pump’s display will still reference values
calculated from the 100% motor speed MAX Flowrate value (see section 4.2). Also,
the pump % motor speed will still be referenced from 125 RPM, the maximum
possible motor RPM. For example, if the pump speed is set for 25%, the display will
indicate 32.3 RPM. The prime mode RPM is limited to the Max RPM value.
Select Max RPM cut-off and Press ENTER button. Use the direction arrows to
enter the password 7890.
Press UP or DOWN arrow to scroll through 0 - 9 on selected digit.
Press RIGHT arrow to scroll over to next digit to right. If you pass your desired digit,
you can easily scroll back by continuously pressing RIGHT button.
Press ENTER to save changes.
Select <-Esc on the main menu screen to exit the menu and enter the run mode.
- Max RPM cut-off
- Input Setup
+ Max RPM cut-off
+ Max Flowrate
+ Input Modes
+ Contact Input
+ Set FVS
+ Set TFD
25.0 1
Press ENTER to set.
4.2 MAX Flowrate (output calibration)
The MAX Flowrate value is equal to the pump’s measured fluid output in milliliters
per minute, at the 100% motor speed adjustment setting. The pump uses the MAX
flow rate value to calculate motor speed for various operating functions and to
display output values.
Each Flex-Pro pump is calibrated at the factory and shipped with a calibrated pump
tube assembly installed. The MAX flow rate value can be adjusted at any time. To
achieve high accuracy, a field calibration under the actual operating conditions
should be performed and the Max Flowrate value changed to reflect the calibrated
amount. Multiply the Max Flowrate value by the percentage of error at your
calibrated flow rate to obtain the new Max Flowrate value.
Select Max Flowrate and Press ENTER button.
Press UP or DOWN arrow to scroll through 0 - 9 on selected digit.
Press RIGHT arrow to scroll over to next digit to right. If you pass your desired digit,
you can easily scroll back by continuously pressing RIGHT button.
Press ENTER to save changes.
Select <-Esc on the main menu screen to exit the menu structure and enter the run
mode.
Every pump tube assembly model number has a published maximum flow rate
value which is based on laboratory tests pumping water at room temperature at 36”
suction lift against 0 psi back pressure. Your actual output may vary due to fluid
viscosity, fluid temperature, suction lift height, piping system layout, manufacturing
tolerances and to a lesser degree, variations in system pressure and tubing wear.
To achieve high accuracy, the pump’s output should be measured (calibrated), and
the MAX Flowrate value (in milliliters per minute) updated, whenever any of the
following conditions exist:
!
At the initial pump start up.
!
When a new tube assembly is installed. Run the pump with or without fluid for
approximately 30 minutes prior to calibration.
!
When the piping system configuration is changed.
!
When the suction lift height is changed.
!
Periodically during the life of the tube. Output variances are most noticeable prior
to tube failure.
- Input Setup
+ Max RPM cut-off
+ Max Flowrate
+ Input Modes
+ Contact Input
+ Set FVS
<- Esc Hidden
+ Remote/Local
+ Set TFD
+ Set Rev Alarm
- Max Flowrate
Input Max Flowrate:
Flowrate = ML/min
Press ENTER to set.
0000.0 1
To calculate the Max
Flowrate:
To determine the amount of
error at your output setting,
divide the actual output
amount by the indicated
output. Then multiply the
resulting percentage of error
by the Max Flowrate value
currently showing in the pump.
Example: If the pump display
indicates the output is 170
ml/min but the actual
measured output is 160
ml/min, calculate the
percentage of error by:
160/170 = 0.941. Multiply the
Max Flowrate value by 0.941
and enter this new value.
Password Protect
Enter Password:
Use direction keys
890 7
Press ENTER to set.