Heron Mi Multi-Wire Controller (AC)

• Choose between 8 and 12 stations
• AC Controller
• Heron's controllers are menu driven, making them intuitive and easy to use. To simplify the creation of irrigation programs, valves can be individually named.
• You can specify the number of programs, the type and number of automatic starts needed. You can enable or disable the software features required.
• Simply select the features you want from a list of options. The features will then appear in the controller’s Main Menu for you to use.
• Mi controllers can be integrated with sensors and dosing systems.
• Irrigation can be controlled by light, rain, temperature, humidity, wind speed, wind direction or flow meters.

Hardware Specification

• Compatible with any 24V AC solenoid valve.
• Output current 0.6amps for 8 station and 1.0 amp for 12 station (resistive) with electronic overload cut-out.
• Output current is measured which can be displayed for diagnostic purposes.
• Two pump starts.
• Three digital inputs.
• One data connector to connect to a PC or GSM mobile phone module.
• Designed to operate in an industrial environment. High electrical noise immunity can withstand a 2.5KV spike.
• Battery backed up real time clock. Real time clock immune to high electrical noise.
• All outputs protected against electrical surges exceeding ANSI C62 surge suppression standards.

Program Specification

• Up to 60 independent programs.
• 8 stations - Run up to 2 valves in parallel
• 12 stations - Run up to 4 valves in parallel
• Up to 64 automatic starts.
• Daily, weekly and variable period automatic starts.
• Automatic starts can be set to run on odd or even days.
• Valves can be individually named e.g. Lawn1, Bed1.
• Valves can be specified to run on a time or volume basis.
• Valves can be allocated to one of five water meters.
• An optimal flow can be entered for every valve.
• A minimum, maximum and pipe break flow rate can be specified for each water meter.
• Valve times can be set from a minimum of 1 second to 10 hours.
• Valves can be allocated to an irrigation group.
• Rainfall can be monitored over 1 to 4 days, irrigation programs can be reduced by 25%, 50%, 75% or 100%.
• Manually percentage adjust (0% to 250%).
• Separate manual percentage adjust for programs and valve groups.
• Continual cycling of irrigation programs between specified time of day. Delay between cycles can be set from 1 minute to 9 hours.
• Manually start an individual program or valve.
• Manually start multiple programs.
• User can select which program to stop or manually advance if multiple programs are running.
• Pump pressurization time can be set in minutes and seconds.
• Programs can be configured to start, stop, freeze or manually advance on a remote input.
• Up to 2 remote inputs can be connected (up to 10 with an input expansion board on a 12 station controller).
• Programs can be allocated up to 5 pump starts or master valves.
• Valves can be defined as ‘special outputs’ to control external devices e.g. fill a pond, switch lighting.
• Valves can be defined for back flush use.
• Irrigation programs can be inhibited by wind speed or wind direction.
• Programs can be integrated with light, rain, humidity, temperature sensors.
• Irrigation can be controlled from a calculated evapotranspiration (ET) value. The ET value can be calculated using a variety of sensors depending upon the required accuracy.
• Programs can be attached to a dosing recipe.