Pump Monitoring System:
SCOPE:
The pump supplier shall provide a pump monitoring system that will protect the pump in case of failure, transmit warnings and alarms to operations personnel, and record pump operating data for historical recordkeeping.
PRODUCTS:
The monitoring system shall consist of a base unit, operator interface and pump memory module. As an option, a power analyzer shall also be available.
The base unit shall contain a microprocessor and 2 Mbytes of memory storage for recording of pump historical data. The base unit shall contain embedded web pages accessible via Microsoft Internet Explorer and have capability to connect to operator computer directly or via modem, radio or LAN. The base unit shall also have provision to communicate to higher level control system via MODBUS RS-485 network. All sensors located in the pump shall connect to the base unit and shall include, as a minimum:
1.
Three (3) thermal switches embedded in the stator windings
2.
One (1) RTD sensor in the stator windings
3.
One (1) RTD sensor on the pump main bearing
4.
One (1) moisture leakage sensor in pump stator housing
5.
One (1) moisture leakage sensor in pump connection housing
6.
One (1) temperature sensor in pump connection housing
7.
Monitoring of pump current in one (1) phase
In addition to the sensors listed above, the following sensors shall be available as an option:
1.
One (1) vibration sensor in pump connection housing
2.
One (1) RTD sensor on pump support bearing
3.
Three (3) RTD sensors in the stator windings
4.
One (1) moisture leakage sensor in the pump oil chamber
The base unit shall provide the ability to adjust trip points of each value sensed, and to designate specific alarm actions: either provide warning or shutdown pump. The base unit shall include three (3) relay contacts to provide annunciation of warning
(NO/NC), annunciation of alarm (NO/NC), and to shutdown the pump (NC).
The operator interface shall include a two-line LCD backlit display, along with user friendly keypad and 2 LED display lights. Pump sensor data shall be viewable and parameters shall be adjustable via keypad and display. LED display lights shall indicate presence of warnings and/or alarms. A reset button shall also be included on the operator interface.

The pump memory module shall be located in the pump connection housing. The module shall be epoxy potted to provide proof against submergence. The memory module shall contain the pump data pate information as well as record pump starts and hours run. Pump sensor data shall be stored on memory module as histogram along with an operator-writable service history log. The pump memory module shall include onboard temperature measurement.
The optional power analyzer shall monitor the following:
1.
Pump system current
2.
Pump current each phase
3.
Pump current unbalance
4.
Pump system voltage
5.
Pump voltage each phase
6.
Pump voltage unbalance
In addition, the power analyzer shall calculate:
1.
System power (kW)
2.
Power Factor
3.
Energy Consumption (kWH)
The pump monitoring system shall be capable of providing historical data of pump sensor information and present it in trend-chart format with minimum resolution of one (1) second. Operator shall be able to select individual or group of sensor inputs to view simultaneously. Sensor information shall be stored in memory as histogram data.
Upon alarm condition, sensor data shall be preserved as an alarm log plot at one (1) second resolution, indicating pump conditions nine (9) minutes prior to, and one (1) minute following alarm event. Up to seven of the most recent alarm log plots shall be stored.
The pump monitoring system shall be MAS 711, manufactured by ITT-Flygt.
The monitoring system shall also provide an option for additional relay modules to be added in order to provide discrete output indication for alarm/warning conditions.
The relay modules shall be DIN rail mount, and powered by 24 VAC or DC supply. The modules shall communicate to the pump monitoring system via RS-485 Modbus connections. Each module shall contain 4 relay outputs rated for 5A at 250V, capable of normally open (NO) or normally closed (NC) operation, selectable by DIP switches on the module. Up to eight (8) modules shall be allowed to connect to a single pump monitor, providing up to thirty two (32) relay outputs per pump. The relay functions shall be assignable via either the operator interface or the web browser function of the pump monitor. Each module shall include communication, power and relay status LEDs for quick indication of operating conditions.
The relay modules shall be MRM01, manufactured by ITT Flygt.