ITT PumpSmart PS220 Configuration And Operation Manual page 61

PS220 Configuration & Operation Guide
Configure the Dry Run factor (Not a necessary step).
The Dry Run factor is for "fine tuning" the Dry Run fault feature. It should only be adjusted during
initial PS220 commissioning. Normally this parameter requires no adjustment but is available should
it be required. If it is adjusted, it should only be increased at 1/100th at a time.
6. Configure Runout Flow Response.
When a pump produces flow well beyond the Best Efficiency Flow rate that it was designed for
it is commonly referred to as Runout. The NPSHA (Net Positive Suction Head Available) is usually
less than the NPSHR (Net Positive Suction Head Required) at this operating condition which can
lead to severe damage to pump internals and the suction piping system. A conservative estimate
for a runout condition to occur is at 110-125% of the Best Efficiency Point Flow [BEP Flow].
The PumpSmart PS220's only available optional response is to provide a warning. The
PumpSmart PS220 will continue to run. The warning message "RunOut" will display. The event
will be stored in the Event Log. It will continue to indicate the warning until the flow decreases
to a value below RunOut flow.
1. "ARROW RIGHT" to change
2. "ARROW UP/DOWN" to change
3. "Save"
4. "ARROW DOWN"
PS220 60