Xylem II Model 233 P User Manual

Page 4

3/07

OPERATION

The Model 233-P monitors pump load in amps and kilowatts. When the current (amps) exceeds

approximately 125% of calibrated current, or power (kW) drops below the adjustable underload trip

point, the 233-P—after the trip delay—will turn off the pump. The 233-P will time through the restart

delay, and then restart the pump.
The calibration is stored in permanent memory—it does not need to be recalibrated if power is

lost.

CALIBRATION

NOTE: The Model 233-P should be calibrated

during normal pumping conditions.

1. Turn the RESTART DELAY/ CALIBRATION

knob fully counter-clockwise to the CAL.

position.

Apply power—the pump will run for

approximately 15 seconds then shut off.

3. Set the RESTART DELAY/ CALIBRATION

knob to the desired restart delay (dry-well

recovery time)—the pump will turn on.

CALIBRATING WHILE PUMPING

The Model 233-P can also be calibrated while the pump is running. Turn the RESTART

DELAY/CALIBRATION knob to CAL. while pumping. Wait for the pump to turn off (approximately
10 seconds), then adjust the RESTART DELAY/CALIBRATION knob to the desired setting.

SENSITIVITY

The Model 233-P has an adjustment knob to set the underload trip sensitivity. Setting

SENSITIVITY to the middle position (straight up) is equivalent to SymCom’s standard underload

trip level. Adjust the SENSITIVITY knob to increase/decrease underload sensitivity up to

approximately 10% of the standard trip. It may be necessary to increase the sensitivity if the

PumpSaver

Plus does not trip on dry-run or dead-head or it is known that the water level in the

well is very low relative to the pumps capabilities.

WARNING: Decreasing the SENSITIVITY may compromise the PumpSaver’s ability to detect

dry-run and/or dead-head conditions.

MANUAL RESET MODE / RESTART DELAY

Set the RESTART DELAY/CALIBRATION knob to RESET for manual reset mode. If the 233-P

trips off due to a voltage or load problem, the RESTART DELAY/CALIBRATION knob must be

rotated out of the RESET position to restart the pump.

NOTE: Any restart delay can be bypassed by rotating the RESTART DELAY/CALIBRATION knob

to the RESET position and back to the desired restart delay setting.

NOTE: The restart delay can be changed at any time. The next trip will follow the new restart delay

setting.

IND. CON T. EQ.

LISTED

784X