Is this good apex code for a BRS 1.1ml/minute doser for alk?
- Thread starter glb
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OP
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glb
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So this is the code the calculator put out. I adjusted the time on to match the amount I want to dose:
So 1900 came and went and it didn’t come on. Any guess as to why? It’s supposed to run twice in a 4 hour period. I got nothing on solving this at this point.
So 1900 came and went and it didn’t come on. Any guess as to why? It’s supposed to run twice in a 4 hour period. I got nothing on solving this at this point.
OP
OP
glb
7500 Club Member
I left the room and when I came back I could tell the pump had run. I think maybe at 8pm? If I tell it to run twice between 7pm and 1am, will it run say at 8 and 11? Any help is appreciated!
Use the two outlets on the far right #4 & #8
EB8 outlets 4 and 8 are activated with mechanical relays. These have a distinct "click" whenever they switch on/off. Mechanical relays (think light switch in your house) have been around for a long time, are inexpensive and very reliable. They handle both high and low current devices equally well.
EB8 outlets 1-3 and 5-7 are TRIAC (TRIode for Alternating Current) solid state outlets. They are completely silent. An example of a TRIAC switch can be found on your Christmas tree lights. They are very, very fast and can switch in fractions of a second and do that all day long without wearing out like a mechanical switch/relay would.
I finally hooked up my doser for alk. This is the Program I wrote for it:
I want it to come on at 6pm, stay on for one minute, then go off. I also want it to turn off if the ph gets to 8.35. I saw some code online that started with OSC but I have no clue what it means or if I need it. The doser is plugged into one of the 4 outlets of the Apex, Jr., which is the right kind of outlet. Did I do this right? Any help is greatly appreciated!
Remember apex executes top down. So you should do:
Fallback off
Set off
Time 18:00 to 18:01 then on
Ph > 8.35 then off
This way it is alway off. Comes on at 6 PM but if at 6 PM the ph is too high, it won’t turn on. It stays on for 1 minute, then sets back to off.
OSC is basically on/off/on repeat. If you really just want it on for 1 minute a day, you don’t need osc. If you wanted it to come an and do a repeated cycle for a while, then turn off, use OSC. Check here:
https://forum.neptunesystems.com/showthread.php?6456-OSC-and-SET-Command-for-dummies-Like-me
For what your original post described, I think you just need the set command.
The
If time XX to XX then
Function only does hours and minutes, it cuts off seconds. So 18:00 to 18:01 is going to go from 18:00:000 to 18:01:590 which is basically two minutes. If you want just 1 minute, or 59 seconds. Then it’s just 18:00 to 18:00. I just did it in my system to check and 18:00 to 18:00 is definitely a valid time.
If time XX to XX then
Function only does hours and minutes, it cuts off seconds. So 18:00 to 18:01 is going to go from 18:00:000 to 18:01:590 which is basically two minutes. If you want just 1 minute, or 59 seconds. Then it’s just 18:00 to 18:00. I just did it in my system to check and 18:00 to 18:00 is definitely a valid time.
Enable logging on outlet, and look at the logs, shows when it turned on, and when it turned off.That’s a good point. I guess I wanted to be able to watch it to make sure I programmed it right.
. No reason to watch it. 
OP
OP
glb
7500 Club Member
That might work. I ended up using an OSC code because I needed to schedule it for seconds, and the time codes are only as accurate as minutes. But if you needed to run it for a minute, I think that could work.
Thanks!
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