DIG | LEIT 1 with 3/4" or 1" Anti-Siphon Valve

DIG’s LEIT 1™ ASV single-station solar-powered controller with a two-wire DC latching solenoid is available on a 3/4" or 1” heavy-duty anti-siphon valve for use in residential and commercial applications. Powered by a photovoltaic module with a patented microelectronic energy management system, the LEIT 1™ requires no batteries or direct sunlight to operate, and it is used above grade in any location where there is light. Distinguished among the LEIT-1™ features are 20 preset monthly historical Evapotranspiration (ET) programs for spray heads and drip irrigation, with an editing feature that can be used as part of the controller programming.

Features:

• Environmentally friendly with no backup battery or AC power necessary; uses clean, renewable solar power
• Power is provided by an internal, ultra-high efficiency photovoltaic module and microelectronic energy management system fueled by ambient light
• Simple, icon-based intuitive programming
• Simple Smart™ historical ET feature automatically adjusts irrigation schedules monthly
• Power level meter indicates the approximate charge (energy available)
• On activation, the controller indicates if irrigation is set to water for the day and if any of the additional programming features are active
• Daily and monthly programming restriction options to comply with city and municipal watering restrictions
• Semi-automatic and manual operation with a timed countdown to off
• Program On/Off button allows the user to turn off the controller and reactivate it as desired
• Retractable coiled cord for easy programming and review
• Utilizes RoHS compliant components
• Reset option allows erasing of all programs to default settings except time, day, and date
• Non-volatile memory holds programs indefinitely without batteries except date and time
• Completely waterproof (IP68)
• Rain sensor connection included
• Internal bleed via the solenoid for system checkup and testing
• Captured solenoid plunger and spring for easy maintenance
• Efficient plastic anti-siphon valve with high flow
• Three-year warranty

Controller Specifications:

• Power source: ambient light (PVM)
• Controller power input: 3,000 -100,000+LUX
• Seven keypad buttons with integrated liquid crystal display
• Temperature range: 38°F to +140°F (3°C to +60°C)
• Solenoid: 7-12 VDC, two-way latching, normally closed
• Solenoid control orifice: .065" (1.65 mm)
• Encapsulated solenoid thread: 11/16"-12 UN male thread
• Retractable solenoid wire: 8.1" (coiled length when extended, approximately 36")
• Sensor connection: normally closed 6" (15 cm) yellow wire (16 AWG)
• Solenoid adapter: 11/16"-12 UN female thread x 3/4”-20 UNEF male threaded
• Materials:
  • Controller housing: high-impact plastic (polycarbonate)
  • Solenoid housing: glass-reinforced nylon
  • Plunger & spacer: 430F stainless steel
  • Plunger rubber cap: EPDM
  • O-ring: Buna-N
  • RoHS

Anti-siphon valve Specifications:

• Valve type: anti-siphon valve with flow control
• Valve sizes: 3/4" to 1" NPT or BSP
• Valve inlet and outlet: female pipe thread (FNPT)
• Operating pressure range: 20-150 PSI (1.4 -10.5 BAR)
• Bonnet solenoid thread: 11/16"-12 UN
• Diaphragm assembly: self-cleaning supported with guided seal
• Flow rate: .25 to 25 GPM (.95-95 LPH-0.057 to 5.68 m3/h)
• Materials:
  • Controller housing: high-impact plastic
  • Valve bonnet: nylon reinforced
  • Valve housing: PVC
  • Diaphragm: EPDM reinforced
  • Solenoid housing & retainer: nylon reinforced
  • Spring and plunger: stainless steel 430F
  • Bonnet bolts: Stainless Steel
  • Plunger rubber cap: EPDM
  • O-ring: Buna-N

Note: Install the unit 6-12 inches above the highest downstream sprinkler head.

Programming

• Custom programming schedules with a weekly calendar, odd days, even days, or intervals from one to thirty (1-30) days utilizing yearly calendar with leap year
• Five start times per day
• Durations up to 5 hours and 59 minutes in -minute increments
• Twenty preset historical ET programs available for 10 climate zones, with 10 for drip irrigation and 10 for spray heads, to use with any irrigation setup; includes the option to review the new calculated duration
• Monthly seasonal adjustment with an option to reduce the program duration setting to 0 or to increase it up to 200% in 5% increments without modifying the controller's program duration; also can be used to fine-tune the preset ET program for each month
• Irrigation suspension for up to 99 days with auto-restart; resumes irrigation automatically
• Program Off button allows the user to turn off the controller and reactivate it as desired
• Manual On/Off button with semi-automatic feature utilizing the program runtime and shows the time left to run with quick override
• Daily and monthly programming restriction feature allows the controller to bypass irrigation schedules. Can be used to comply with city and municipal watering restrictions

Manuals

LEIT-1 ASV, MVA, ILV, Quick Start Guide

LEIT-1 ASV, MVA Instruction Manual