P.O. BOX 330, BRANDAMORE, PA 19316 (610) 942-3190 Fax: (610) 942-3672


Spec: 660.11.06


These specifications describe a model PSM-660 Microprocessor Based, Pump Station Monitor/Controller as manufactured by Control Electronics, Inc.


The PSM-660 Pump Station Monitor shall provide liquid volume throughput measurements and/or pump control of liquid in a sewage lift station or wet well using float/contact closures/Clamp ON Sensor or 4-20 mA inputs.


a. The PSM-660 Monitor shall be a microprocessor controlled unit capable of front panel, menu based programming and alpha numeric operator interface. Calibration and programming shall be accomplished using four (4) clearly marked, pressure sensitive "button" areas on the front panel of the controller. Unsealed push buttons are unacceptable. All data and liquid volume totals shall be Pass Code protected to prevent unauthorized tampering.

b. The PSM-660 shall provide two (2) independent 4-20mA analog output signals equal to Level, Pump rate or Inflow rate, user selectable, into 1000 ohm maximum load. Analog output scaling of 0-100% shall be fully programmable, with adjustable damping for steady output to chart recorders and controllers.

c. The Pump Station Monitor shall not require any range selection. Flow Range shall be 0 to 100,000 GPM and liquid volume Totalizing shall be 8 digit with x1, x10, x100 or x1000 multiplier. The counter shall not reset or lose data in the event of a power failure or system shut down. The totalizer shall be resetable only after entering a security code.

d. Calibration shall be programmable in the field by entering the wet well dimensions (diameter for circular; length/width for rectangular; 999.99" max per dimension) and pump ON/OFF elevation points to calculate volume pumped. An additional intermediate float elevation point may be entered for monitoring 'INFLOW' rate. A 'volume offset' value shall be programmable for maximum volume throughput accuracy.

e. The PSM-660 shall have a "Test Output" mode for Analog Output Simulation for analog output calibration/testing and "Test Relays" for Relay output testing and manual operation.

f. The PSM-660 Pump Monitor shall have a resolution of 0.01 gal/min, an accuracy of ±1.0 second of pump run time and ±0.1% calculation error. The system shall contain all the necessary mathematical equations for all related conversion functions.

g. The PSM-660 shall be capable of monitoring up to 7, opto isolated, float/contact closure inputs (LOW, PUMP OFF, INFLOW START, LEAD ON, LAG1, LAG2, HIGH/LAG3) or a continuous 4-20 mA. input for complete control of up to 4 pumps with LOW and HIGH alarm outputs. The Controller shall be programmable to set the number of pumps, the pump sequence order and Alternate of NONE, LEAD/LAG pumps or ROTATION of pumps.

h. The PSM-660 may be used to monitor 'volume throughtput only' by using pump starter or alternators auxillary dry contact closure (user supplied) or Current Clamp ON Sensor (opt.) for pump(s) ON/OFF and one intermediate float for 'inflow rate' monitoring (opt.).

i. Five (5) 5 Amp SPDT, 250 VAC, relay closures shall be provided for Pump Control and Alarms.

j. All programmed and Totalized Data shall be saved in non-volatile memory to prevent loss upon power failure. The Pump Monitor shall restart with no operator assistance upon return of power. The PSM-660 shall delay the start of each pump to prevent pumps from starting simultaneously when power returns.

k. Power requirements shall be 120/220 VAC, ±15%, 50/60 Hz at approximately 15W. Surge protection shall be provided on the AC power line and 4-20mA. output to reduce potential damage caused by unexpected voltage transients.

l. The Pump Monitor shall have Time Stamped Data Logging capabilities with hour meters per pump. Data shall be logged for the past 200 days with auto wrap around indicating each days DATE, TOTAL PUMP CYCLES for day, TOTAL GALLONS PUMPED for day, AVG GPM pumped and TOTAL RUN TIME of pumps. Also, the PSM-660 shall provide, along with the 200 day record, a detailed logging of DATE, PUMP CYCLE NUMBER, each pumps TOTAL PUMPED for cycle, AVG GPM for cycle, INFLOW RATE for cycle, START TIME of cycle and RUN TIME of pump cycle. A time stamped EVENT list shall be included to record monitors events such as power loss, when programmed, alarm, signal loss etc. All Data can be downloaded to a PC through the RS-232 output using any standard Software packagesuch as HYPER-TERMINAL.


A two line, 20 character per line, Alphanumeric, backlighted LCD display shall provide indications of Inflow GPM rate, Pumping Rate GPM, Number of Pump Cycles for day, Total pumped for each cycle, Total pumped for day, Accumulative Volume Total to date, Pump Start and Run Time as well as Time Stamped Data Logging history, Monitor Status and program data.

2.3 CURRENT SENSOR (optional)

Optional Current Sensor shall be provided to sense pump ON/OFF condition. Sensor shall sense current through wire to pump. When power is applied to pump, sensor will be activated providing a a signal to the PSM-660 controller.


The PSM-660 system shall be housed in a fiberglass enclosure rated NEMA 4X, IP65 (water-tight, dust-tight and corrosion resistant) with a clear hinged cover for viewing the display panel. The enclosure shall be suitable for wall mounting and withstand submergence to six feet. An optional heater/thermostat shall be provided for outdoor installation where temperatures drop below 30 F.


The PSM-660 shall be pretested and 100% quality control inspected. The Monitor shall be warranted against defects in parts and labor for one (1) year from date of shipment.

CONTROL ELECTRONICS, INC. P.O. Box 330, Brandamore, PA 19316

(610) 942-3190 FAX: (610) 942-3672