Robo-Tank DIY ATO System
User Manual – Page 12
10. Advance Settings and ATO Defaults
The Robo-Tank ATO system has a total of 8 settings that you can adjust allowing you to further customize the ATO for your
aquarium. You can toggle through the settings using the 3 push buttons on the ATO modules circuit board which can be
accessed by removing the lid. The next 3 pages explains everything in detail.
Setup Option 1
= Sensor 3 Function
- Default is “Monitor the Reservoir”
This allows you to change the function of Sensor 3 and has 3 available options: It can be “Disabled” set to “Monitor
the Reservoir” or, as a “3rd ATO Sensor” for the regular ATO function.
Setup Option 2
= Alarm Volume
- Default is “100%”
With this setting you can control how loud the audible alarm is, there are 7 different volumes to choose from.
Setup Option 3
= Alarm Delay
- Default is “10 Minutes”
This allow you to control how many minutes delay is added before an alarm sounds. When an alarm triggers the
pump will still be turned off immediately but the alarm won’t sound until the delay has expired. This can be set
between 0 minutes and 60 minutes in 1 minute intervals.
Setup Option 4
= Pump Voltage
- Default is “12 Volts”
This setting allows you to change the output voltage of the DC pump port which will slow down your pump. For
example you have a 12v DC pump connected but it runs to fast you can adjust this to slow it down. Only change
this if your pump shows a range of voltages such as 6v-12v. There are 6 voltages to choose from, 3.8v, 5v, 6v, 8v,
10v and 12v.
Setup Option 5
= Sensor 1 Sensitivity Level
- Default is “Medium”
This setting lets you adjust the sensitivity level of Sensor 1 but the effect is only seen if you use an optical sensor.
If you want a smaller or larger volume top off set this accordingly. There are 3 different settings to choose from,
Low, Medium and High.
Setup Option 6
= Start Delay in Seconds
- Default is “5 Seconds”
This setting adds a delay before the ATO switches on allowing time for the sensor to stabilize so the pump isn’t
constantly turning on/off because of waves. Using the 5 second default would mean the sensor must sense a low
water level for at least 5 consecutive seconds otherwise the timer will reset until this is achieved. This can be set
between 1 second and 60 seconds in 1 second intervals.
Setup Option 7
= Auto Calculate Maximum Run-time
- Default is “On”
If this is turned on the system automatically calculates the Maximum Run-time which switches off the ATO if the
timer expires. This will work on any size aquarium but is designed to work with the Robo-Tank Sensor Bracket and
optical sensors. If you setup is different it’s better to turn this “Off” and use the manual mode. If Auto Calculate is
turned off the settings in “Setup Option 8 and 9” are used to determine the Maximum Run-time.
Setup Option 8
= Maximum Run-time Minutes
- Default is “5 Minutes”
This setting is used if “Setup Option 7” is off and goes together with “Setup Option 9”. It’s used to manually set
the maximum run-time for the ATO pump. The system takes the minutes and seconds and sets a total allowable
run-time. For example if you set it to 4 minutes and 10 seconds that’s how long it can run before switching off the
ATO. This can be set between 0 minutes and 10 minutes in 1 minute intervals.
Setup Option 9
= Maximum Run-time Seconds
- Default is “0 Seconds”
This setting is used if “Setup Option 7” is off and goes together with “Setup Option 8”. It’s used to manually set
the maximum run-time for the ATO pump. The system takes the minutes and seconds and sets a total allowable
run-time. For example if you set it to 1 minutes and 37 seconds that’s how long it will run before switching off the
ATO. This can be set between 0 seconds and 59 seconds in 1 second intervals.
