Rain Master DX2 series - User Manual

Rain Master Irrigation Systems DX2 User Manual
Page 232 Appendix A: Flow Meters
Appendix A
Flow Meters
The Evolution DX2 series controller provides a variety of user-
configurable, flow-related features for either one or two flow
sensors, referred to as Flow #1 and Flow #2.
The Evolution DX2 flow features/capabilities include:
• Display of instantaneous flow rate in gallons per minute
(GPM) for Flow #1, Flow #2 and total (Flow #1 + Flow
#2). Flow rates are updated every ten seconds.
• Display of monthly flow accumulations in gallons for
Flow #1, Flow #2 and total (Flow #1 + Flow #2). Flow
accumulation in gallons is updated every minute.
• Automatic termination of watering based upon flow
limit violations:
o Main line flow rate for controller (GPM)
o Maximum flow rate per station (GPM)
o Minimum flow rate per station (GPM)
o Maximum flow accumulation per month
(gallons)
o Unscheduled flow rate for controller (GPM)
• Automatic condemnation and reporting of
stations violating flow limits. Warning
information is provided in the Field
Maintenance Activity and Troubleshooting
section of the manual.
• Automatic establishment of station upper and
lower flow limits (learn mode).
Appendix: A
Flow Meters

Rain Master DX2 series Specifications

General

Brand	Rain Master
Model	DX2 series
Category	Controller
Language	English

Summary

DX2 Flow Meter Capabilities

Instantaneous and Monthly Flow Display

Displays flow rates in GPM and monthly accumulations in gallons for Flow #1, #2, and total.

Automatic Flow Limit Violations Handling

Automatic termination of watering and reporting of stations violating flow limits.

Learn Mode for Flow Limits

Automatic establishment of station upper and lower flow limits via learn mode.

Flow Meter Operation and Setup

Displaying Flow Rate and Accumulation Data

Steps to ensure proper connection and calibration for displaying flow data.

Establishing Flow Limit Checking Procedures

Verification steps required to set up flow limit checking for controllers or individual stations.

Flow Meter Accuracy and Calibration

Flow Reading Accuracy

Details the accuracy of flow readings, limited by sensor devices, typically 1%.

Offset and K Values for Calibration

Explains the necessity of entering "offset" and "K" values for proper meter calibration.

Flow Limit Checking Parameters

Station Upper and Lower Flow Limits

Defines station upper and lower limits and how the controller detects violations.

Main and Monthly Flow Limits

Sets limits for controller/main line and maximum monthly flow, triggering errors if exceeded.

Unscheduled Flow Limit Definition

Defines flow not programmed, shutting down supply if it exceeds the limit.

Flow Limit Checking Configuration

Enabling;Disabling Flow Limit Checks

Options to enable or disable flow limit checking for stations, including upper/lower limits.

Delaying Flow Rate Limit Checks

Setting a delay period after station start to prevent erroneous fault detections.

Viewing Flow Meter Readings

Two Flow Meter Limit Checking Options

Selecting which meter or total flow to use for limit checking when two meters are installed.

Accessing Flow Meter Readings

Steps to navigate the controller to observe instantaneous flow readings for Flow #1 and Flow #2.

Reading Monthly Water Totals

Viewing Past Month Water Totals

Procedure to view the accumulated monthly gallons for Flow #1 and Flow #2.

Viewing Present Month Water Totals

Procedure to view current month's total gallons for Flow #1 and Flow #2.

Flow Limit Violation Response Actions

Irrigation Termination on Violation

Actions taken upon detecting a flow limit violation, including terminating irrigation.

Warning and Condemned Station Logging

Recording violations in a warning list and marking faulty stations as "condemned".

Flow Limit Violation Examples

Main Flow and Unscheduled Limit Violations

Examples of warnings for main flow breaks and unscheduled flow conditions.

Specific Flow Limit Violation Scenarios

Station Overflow and Under Flow Violations

Examples of warnings for exceeding or falling below station flow limits.

Monthly Water Limit Exceeded Warning

Example of a warning message when the monthly watering allocation is exceeded.

Multiple Station Flow Protection

Summing Station Limits for Simultaneous Operation

How individual station limits are summed for comparison with total flow when stations operate simultaneously.

Flow Sensor Installation and Configuration

Flow Sensor Wiring Procedure

Detailed steps for wiring the flow sensor to the controller's terminal board.

Setting Flow Sensor K and Offset Values

Instruction to set the "K" and "OFFSET" values for the installed flow sensor.