Functions

From Reef Projects

This is a List of Possible Functions a Controller Might Have

Contents 1 Control Temperature 2 Lighting/Timer functions 3 Feed Mode 4 Control PH 5 Detect leaks with moisture sensor 6 Maintain tank when power fails 7 Measure tank voltages to look for stray current 8 Auto-top off

Control Temperature

• temp<78 turn on heater
• 80<temp<82 turn off heater turn on fan or chiller
• temp>82 turn on fan; turn off lights

Lighting/Timer functions

• Real Time Clock
  • Light Timer
  • Sunset/sunrise
  • Nightlights
  • Night mode
  • Adjust sunrise/sunset to match seasonal variation
    • Use Photoresistor to control lights
• Keep track of total hours lights have been on to monitor bulb life.

Feed Mode

• Turn off pumps for a set interval for feeding.

Control PH

• Use kalkwasser when PH is low or RO/DI when PH is high for ATO
• Control calcium reactor

Detect leaks with moisture sensor

• Alarm when moisture is detected.

Maintain tank when power fails

• Only run heater and bare minimum of pumps
• Time delay before turning metal halide lighting back on.

Measure tank voltages to look for stray current

• If stray current is measured sound an alarm or run a debug program to isolate rouge equipment.

Auto-top off

• Turn on ATO for 3 seconds when activated.
• Don’t allow more than x seconds of operation per hour.
• Alarm when ATO reservoir is low.
• Refill ATO reservoir with RO/DI
• Display the last time the ATO ran