There are 8 channels designed to control AC voltage (120-230V AC) devices like water filter, air pump, CO2 valves, aquarium fluorescent or metal halide lights etc. All channels have OFF, ON and AUTO modes. In OFF or ON modes channels will be permanently turned off or on. Also each channel can be controlled by timer.. Timer is activated when channel is set to AUTO mode. In this mode channel will be turned off and on automatically. In AUTO mode each aquarium device can be turned off and on several times per day.
All channels are universal, but 6 of them are dedicated for the particular equipment. Here is additional modes listed for Device#1- Device#8 channels:
- Device #1 – filter #2 control (OFF15 function);
- Device #2 – water cooling fans control;
- Device #3 – CO2 solenoid control;
- Device #4 – water heater control;
- Device #5 – aquarium auto top-off pump control;
- Device #6 – aquarium automatic water change draining pump control;
- Device #7 – aquarium automatic water change fill pump control;
- Device #8 – filter #2 control (OFF15 function).
Device #1 and #8 channels are designed to control aquarium filter. They have special function: OFF15. Activating this function aquarium filter will be disconnected for 15 mins. After this it will set to the previous state. This function is useful when you need to feed your fish and aquarium filter flow scatters food flakes all around. OFF15 function can be activated from keypad by long one button press, using Fast control function.
Device #2 channel is designed to control 120-230V aquarium fan block when is set in WATER FAN mode.
Device #3 channel has CO2 SOLENOID mode. This mode is designed to control CO2 solenoid valve according to the water PH measurements.
Device #4 channel is designed to control aquarium heater. For this purpose HEATER CONTROL mode can be used.
Device #5 channel is designed to control top-off pump. For this purpose ATO PUMP mode can be used.
Device #6 channel is designed to control automatic water change draining pump. For this purpose DRAINING PUMP mode mode can be used.
Device #7 channel is designed to control automatic water change fill pump. For this purpose AWC PUMP mode mode can be used.
In the board Devices outputs connects to the various aquarium equipment through the mechanical relay contacts. The reason why electronic relay was not used is that electronic relay can not fully turn off device, and this can cause aquarium fluorescent lamps flickering, when they are in the OFF state.