The water and wastewater facilities remote monitoring, reporting and alarm notification system shall be comprised of a hosted, Web-based user-interface which communicates to remotely monitored stations via a readily available commercial cellular network.
The system shall contain hardware located at each remote station that continually monitors pump activity, fault conditions, tank level and computed volumetric inflow and outflow and reports this information on a periodic and exception basis to a Web-based user-interface using a secure protocol over the cellular network.
The system shall have a Web-based application that is configured to present all fault conditions, operating conditions, computed values in tabular, graphical, map and report formats. The application will provide alarm notification to designated personnel based on alarms detected by the remote hardware and by computations performed by the Web-based system.
The system shall be fully integrated between the hardware and Web application providing complete programming capability of the hardware from the hardware installed at each station and from the Web application. The Web application shall be automatically updated whenever any configuration changes are made to the hardware.
|Minimum rating shall be NEMA 4X, flush mount or sub-panel mount.
|Temperature: 32 to 158ºF (0 to 70ºC) Humidity: 0-90% non-condensing @ 104ºF
|15VDC, 1A, DIN-rail mount included.
|2 relays, 0.5A at 125VAC each
|Front panel: 9.34"W x 6.72"H Enclosure: 8.2"W x 5.2"H x 3.6"D
|1.8 lbs. (.81kg)
|Solid state surge protection provided on digital input, analog input, serial port, and telephone circuitry. All fuses shall be solid-state automatic resettable requiring no maintenance
|All I/O wiring uses quick-disconnect pluggable connectors.
|10 Dry Contact/Digital Inputs are capable of interfacing directly to dry contacts or digital input signals with voltages up to 25VDC.
|4 Analog Inputs shall be capable of interfacing directly to 4-20ma, 0-20ma, 0-5V, 1-5V, signals. Each channel shall be programmable for range independently from any other channel on the same board. All channel range programming via the keypad and over the web.
|2 relays are programmable to activate automatically when any channel goes into alarm, or upon local or remote request. The relay can deactivate automatically when all channels have returned to the normal condition, upon a programmable timer expiring or upon local or remote request.
|20 Modbus RTU read coil/input status channels. Perform like physical digital inputs.
|30 Modbus RTU read holding/register channels. Perform like physical analog inputs.
|8 Modbus RTU write coil digital channels. td>
|GSM quad-band (ATT certified) or CDMA dual-band (Verizon certified).
|12-hour minimum included.
The station hardware includes a user interface for operations viewing and configuration. The keypad/display shall allow the user to view the status of any/all pumps being monitored, computed or historic conditions, current and historic faults and configuration of operational parameters.
The user can select any of the monitored conditions to be included in an Automatic Scrolling display that presents the current value and status of the condition. The following parameters shall be available for the user to select:
- Pump run-times
- Pump cycles
- Differences between pumps run-times and cycles
- Flow rate and totalized flow
- Inflow rate and Inflow total volume
- Outflow total volume and previous cycle volume,
- Pump running/off
- Pump starter faults
- Phase monitor fault
- Pump seal failures and over temperature
- Operator on-site
- Cellular signal strength
- Main and battery power
- Any digital, analog or Modbus values veing monitored or computed
The user can stop the display on any parameter of interest and request additional information about that particular parameter. Information shall include:
- For each digital input:
- the number of cycles for the current day
- the total run-time for the current day
- alarm limits for number of cycles in a day
- alarm limits for the total run-time in a day
- For each analog input:
- high alarm limit
- low alarm limit
- rate of change limits
- For computed inflow/outflow channels:
- total inflow and outflow for the day
- inflow rate
- outflow for last pump cycle
- For computed pump running channels:
- pump run time for each individual pump
- pump run times for P1+P2, P2+P3 and P1+P3
- For analog and digital pulse flow channels:
- instantaneous flow
- total flow for the day and total accumulated flow
- user-specified preset to match installed flow meter
The display automatically cycles through all of the parameters that the user has selected showing the current status and value of each. The status shall include:
- Normal or in alarm
- Reason in alarm
- Too many cycles on any pump
- Difference in cycles between any two pumps to many
- Run-time too long on any pump
- Difference in run-time between any two pumps to long
- Level to high or low
- Rate of change of any analog too fast
- Outflow volume too high
- Digital input changed state
- Any analog value exceeds high or low limit
- Inflow rate too high
- Loss of analog signal
- Operator has not logged out within the Man-On-Site time period
Any monitored parameter that exceeds the normal operating conditions as defined by the user, enters into an alarm state.
The local display automatically displays all parameters that are in the alarm state. When all alarm states have returned to normal, the display automatically reverts to the user-configured scrolling display if enabled or to the main menu.
A unique event is created for each alarm state. Each event is stored locally for viewing in a chronological order. Each event may also be automatically transmitted to the Aquavx™ web-service based on a user-specified configuration.
The system contains a store-and-forward buffer capable of saving hundreds of events for later transmission if immediate cellular transmission is not possible due to cellular coverage issues. The system automatically tries to re-establish cellular connection on a continuous basis.
Loss of communication between the system and the Aquavx™ web service.
Standard status update rates of all monitored conditions are available from every minute to once a day. Any alarm exceptions are reported immediately.
End of Day comprehensive summaries are reported at midnight, or optionally at a time specified by the user as being the 24-hour boundry.
The user can request a status or End of Day report on demand from the keypad.
The user can program the entire system from the integral keypad and display (or via the web). Parameters include:
- Channel name
- Status only or report on alarms
- Alarm delay
- Report when the alarm goes away
- Relay to control when in/out of alarm
- Alarm limits on all system, monitored and computed parameters
The monitoring system includes a History screen allowing the user to review the following:
- Date and time of alarms and alarm reporting
- Date and time of relay controls
- Date and time of all communication with the Aquavx™ web service
The remote monitoring system includes internal physical relays and Modbus relay control capability from the following:
- Digital input exceeding a run-time or cycle limit
- Digital input changing state a pre-defined number of time
- Analog input exceeding a low or high limit
- Loss of analog input signal
- Loss of power
- Loss of Modbus communication
- User request
- Remote request for the Aquavx™ web service
- Based on level from remote tank
The monitoring system includes an operator on-site login/logout function.
- The login function sllows an authorized person to acknowledge that they are on-site.
- An automatic message is sent to the Aquavx™ web service to record that the authorized person is on-site.
- The logout function allows an authorized person to acknowledge that they have left the site.
- An automatic message is sent to the Aquavx™ web service to record that the authorized person has left the site.
- Man-Down detection - an alarm message shall be able to activate a local alarm and send a message to the web-based service when a timer has expired after an operator has logged in but has not logged out.
|The monitoring system includes a user-configurable access code that must be entered prior to any programming or control operations.
The web-based system user interface allows authorized personnel the ability to view current and historic conditions for any or all remote monitoring systems. The interface allows on-demand polling of information and on-demand control of remote relays.
Any user of the web-based system with a valid username and password to gain access to any current or historical information based on their user profile and security levels.
- The system provides access to any and all functions based on the pre-defined settings for each individual user. User's access shall be able to be restricted to a single screen, any combination of screens, and any combination of remote monitoring systems.
- An unlimited number of user access levels are supported
- The system is backed by a 99.5% uptime system level agreement
- 128 bit encryption between the client and the web server shall be used
- The system is hosted in a Tier 1 data center
- The system includes 24 X 7 X 365 support
- The system shall have acknowledgment of receipt of all incoming messages
- An unlimited number of users at no additional cost shall be provided
The system receives data from Remote Monitoring Systems, performs additional computations on the received field data and stores both types of data in secure databases for later presentation and reporting.
- Pump run-time differentials between P1-P2, P1-P3, P1-P4, P2-P3, P2-P4 and P3-P4 allowing the user to specify a percentage that the pump run-times must be within. If the run-times differential exceeds that limit, an alarm is created and user-defined notifications are performed.
- Pump cycle differentials between P1-P2, P1-P3, P1-P4, P2-P3, P2-P4 and P3-P4 allowing the user to specify a number of cycles that the pump cycle count must be within. If the cycle differential exceeds that limit, an alarm is created and user-defined notifications are performed.