Pulsafeeder MPC - Manual (Page 29)

Now that you have confirmed that the MPC is receiving power, it is
necessary to confirm that the display and keypad are functioning
properly. On normal power-up, the display appears for approximately 2
seconds.
P U L S A F E E D E R I N C .
F W : 0 0 . 0 0 / 0 0 . 0 0
The first four digits displayed are the software revision for the MPC base
unit, and the second four indicate the software revision for the handheld
display/keypad module.
The keypad can be tested by depressing each key separately. Most, but
not all keys will cause the text on the display to change. Do not be
alarmed if a single key does not invoke a change to the display. This is
normal. Different keys become active/inactive depending on the current
operating mode.
Please note that it may be necessary to adjust the display contrast;
please refer to Section 10.8 if this is required.
9.4 Flow Display
The MPC will display calibrated pump flow in GPH or LPH on the digital
display. The MPC is capable of very high turndown ratios, limited only by
pump configuration and system design. In some cases, the MPC display
will be unable to display very low flow rates, in these situations the
display may indicate 0.0 for flow, even though the pump is producing
measurable flow. If the pump is being operated under these conditions,
users may wish to perform extra flow calibrations to verify actual flow
rates at certain set points. Note that even after the additional calibrations
are done, the MPC will still not display the low flow that the pump is
producing.
In situations where the pump stroke length is set to 0 (zero) %, the pump
will also display 0 (zero) GPH or 0 (zero) LPH, regardless of motor
speed setting. If the display registers no flow in this manner, check the
setting of the stroke length mechanism on your pump.
9.5 Wrapping up
Your MPC is now commissioned for use. Note that you cannot configure
the software in a way that would damage the MPC. Typically, whenever
you are about to set a critical value (e.g., Calibrate Flow), you are always
prompted to confirm your change before it takes effect. If you are ever
dissatisfied with the configuration of your MPC, you can always return to
the Factory Defaults by referring the next section.