Smartline SL4800 Controlller

Internal transformer with commercial terminal block, On/Off power switch and LED status indicator

Large backlit LCD display

2 run modes: Standard mode runs user input zone run times; Auto Adjust mode requires SLW Series On-Site Weather Station to calculate weather based run times

Rain/Freeze sensor bypass/active button displays sensor status with tricolor LEDs (red indicates sensor is prohibiting irrigation; orange indicates an extended rain delay; green indicates normal operation)

4 programs: A, B, C; program D can operate concurrently

8 start times per program

Nonvolatile memory and real time clock/calendar to retain programs and current date and time - no battery required

Zone run times from 1 min. to 9 hrs. 55 min. with operation countdown displayed in hours, minutes, and seconds

Watering day selections of custom days of the week, odd/even, or interval days (1 - 30 days)

Omit settings: omit time of day window, omit day(s) of week, and omit up to 7 calendar dates

Monthly % adjust by program, for simple year round water budgeting.

Fault review displays all faults, including open and shorted zones

On-board multi-meter displays transformer voltage; milliamp measurement for each zone

Built-in valve locator chatters the solenoids (U.S. Patent No. 7,406,363)

Review menu displays ET deficits by zone , and corresponding zone run times

Review menu displays maximum run time and minimum soak times

Review menu displays temperature readings (daily high/low) for previous 5 days

Review menu accumulates total run times by zone

Programmable rain delay of 1 - 7 days

SLW Weather Station extended rain delay programmable from 0 - 99 hours

Run/Soak cycles allow setting of maximum run time and minimum soak time by program for use in Standard mode only

Programmable zone-to-zone delay 1 min. - 3 hrs.

Programmable master valve timing sequence with "On Delay" (1 sec. - 1 min.; 2 sec. default) and "Off Delay" (1 sec. - 3 min.; 5 sec. default) to allow for line fill and slow-closing valves

Master valve/pump start operation assignable On/Off by zone

Clear program function to selectively delete an individual program

Clear all function to delete all programs

Backtrack stored program feature allows contractor to easily store a default program and retrieve the saved program in the event a customer improperly reprograms the SL4800.