@coweyes298 - the reason for the 1500 mL vs 5250 mL is based on a calculation of average for the weeks schedule.
In GCC, this is more clearly labeled as Average Daily dosing amount.
Actual daily dosing amount, divided by number of days in week(7), multiple by number of days enabled - this is your average, though the label may need a do over.
In your example, you're dosing 5250 mL on 2 out of 7 days. 5250 / 7 days * 2 days selected.
If you enabled another day, it show the Daily average of dose 2250 mL.
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Regarding some of the other concerns voiced.
max dose rate / flow variations between heads: This depends on many factors; head pressure, liquid dosed(viscosity and content), tubing used, tubing routing, length of tubing etc. This will all affect the amount of liquid the doser can and will flow. Please always remember, this is a precision doser, not a flow pump. Can you do AWCs? Yes, however depending on how much liquid you need to change there may be other options.
Auto Water Change: The AWC would be best performed with level sensors, rather than set variables, IMO, but both will work, as long as your calibration is correct.
Calculation/setup of dosing schedule: The first thing I do when I want to setup a doser, I figure out my end result.
I want to dose:
99 mL of Liquid_A PER DAY on head 1
123 mL of Liquid_B PER DAY on head 2
Requirements:
Dose all liquids daily. Dose as many times a day as possible, in the smallest possible/sensible increments for least amount of change per dose.
1. I set my lowest sensible speed setting on the heads. I only use speed 2/3 for ATO / AWC. If you're going to be dosing 500+ ML's a day, I may use sp2/3, short of that, 0 or 1.
2. Change head speed, hit SAVE, then calibrate EACH HEAD! Do not assume that flow value from head 1 will automatically match head 2. Tubing, routing, length, etc can all have impact.
3. I calculate:
Head 1: Liquid_A
You could do it very simply and dose 99* 1.0 mL - BUT my goal is for smallest dose, very frequently.
99 / 150 = 0.66 ... let's get that to a rounded number..
99/ 141 = 0.7021 or 99/142 = 0.6971 ... good enough for me.
Now you plug in that you would like:
Dosings per day: 142
Rate per dosing: 0.7
ALWAYS DOSE AT THAT TIME - I start at midnight; 12:00 AM
Select either all days, or Interval: Repeat all: 1 DAYS
The doser will now figure out the schedule, and time it needs to run the head, based on your head calibration rate.
If you set head 1 for speed 0, and calibration rate of 3.5 mL /minute, then the the head would spin for 12 seconds, every time it ran. 3.5 / 7 = 5 running periods, 60 Secs / 5 running periods per minute = 12 secs
Head 2: Liquid_B
You could do it very simply and dose 123* 1.0 mL - BUT my goal is for smallest dose, very frequently.
123 / 150 = 0.82 ... let's get that to a rounded number..
123/ 136 = 0.9044 ... good enough for me.
Now you plug in that you would like:
Dosings per day: 136
Rate per dosing: 0.9
ALWAYS DOSE AT THAT TIME - Let's offset this to avoid dosing at same time as head 1 - I start with a 5 minute offset; 12:05 AM
Select either all days, or Interval: Repeat all: 1 DAYS
The doser will now figure out the schedule, and time it needs to run the head, based on your head calibration rate.
If you set head 2 for speed 0, and calibration rate of 4.5 mL /minute, then the the head would spin for 12 seconds, every time it ran. 4.5 / 9 = 5 running periods, 60 Secs / 5 running periods per minute = 12 secs
