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Rain Master Irrigation Systems DX2 User Manual

Page 166 Chapter 10: Troubleshooting

Standard Flow Warnings

001 - Station Flow Too Low

Figure 142: Warning 001 -Flow Lower Limit

This warning appears at any controller whenever the measured

flow is less than the expected flow (lower limit failure). The

warning displays the station number (2) which was on at the time

of the lower limit violation, the Master Valve (MV1) and/or the

Pump, as well as the GPM reading (12) as measured by the flow

meter. Upon detection, the controller automatically terminates

irrigation on the station and advances to the next station in the

program. Condemned stations will not irrigate again until the

warning has been cleared.

Action:

Step 1 Alarm generation may be caused by:

a. Mis-adjusted valve

b. Incorrectly established individual station limits

c. Large variations in static water pressure

d. Improper regulation

e. Line impediments

Step 2 If station limits are suspected, manually turn each

station on and observe the nominal GPM readings.

To isolate the suspect station, refer to the Manual

Test procedure, (8-2).

Step 3 Compare the GPM reading with the limit setting to

insure that adequate margin exits (typical: 50%

below nominal).

WARNING = FLOW LOW LIMIT

06/20/96 10:45AM

STA=2, MV1 GPM=12 |¾||½|

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Evolution DX2 series Manuale Utente Pagina 6