Idex Pulsafeeder MPC Vector Installation, Operation & Maintenance Manual page 50

9. After setting the low speed calibration point, press the ENTER key to accept the calibration flow rate and save the
two point calibration.
10. At this point, the system will check the dry calibration values, and if the values are acceptable will complete the
calibration.
8.1.2.2 Closed Loop WET Flow Calibration
The closed loop WET flow calibration routine will require the user to run the pump and provide system flow at a
user selected low and high speed. The controller will monitor the current from the flow meter and store it for both
high and low flow readings. The user must provide the corresponding meter flow rate readout, providing a two
point calibration. Note: The flow meter output current must be configured to be within the 4-20 mA range over the
full speed/flow range of the pump. See your flow meter's IOM to set analog 4-20 mA output range versus the flow
rate measured.
To optimize feedback, it is best to set your flow meter 4mA to 0 flow and 20mA to a value slightly higher (10-
20% or so) than your pumps rated capacity. This allows the user a full range of flow set points as well as
giving the MPC VECTOR the best possible 4-20mA analog resolution.
Shown below is the speed, flow, and current graph for the two point closed loop calibration.
Ensure the following:
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P U M P F L O W
C A L I B R A T E D
Figure 8-3 Closed Loop Flow Control WET Calibration Curve
That your flow meter is providing output to Analog Input 2.
That your system is set up for flow meter/closed loop operation. (See section 5.3.3.7.1 Flow
Meter (Analog Input 2) i.e. flow meter set to analog)
That it is safe to run the pump and dispense liquid into the system.
That the pump is fully primed with the product.
That you are prepared to read the flow rate from your meter. Then proceed with the
following steps from the handheld remote:
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