can someone share your apex program

[project1004]

Can you share your apex Calcium reactor co2 reglator program with me?!!?

I think mine is off by something. thing is going off and on too often,

here is my current program.

Fallback OFF
If pHx9 > 6.60 Then ON
If pHx9 < 6.50 Then OFF
Defer 010:00 Then ON
If Swx4_1 CLOSED Then OFF
If Swx4_2 CLOSED Then OFF
If Swx4_3 CLOSED Then OFF
If Swx4_4 CLOSED Then OFF


and my log records for today,

Item Date Output State
1 2015-05-26 00:02:40 -0400 CO2_Control OFF
2 2015-05-26 00:18:52 -0400 CO2_Control ON
3 2015-05-26 01:21:11 -0400 CO2_Control OFF
4 2015-05-26 01:37:23 -0400 CO2_Control ON
5 2015-05-26 02:51:36 -0400 CO2_Control OFF
6 2015-05-26 03:07:45 -0400 CO2_Control ON
7 2015-05-26 04:19:12 -0400 CO2_Control OFF
8 2015-05-26 04:35:11 -0400 CO2_Control ON
9 2015-05-26 05:50:48 -0400 CO2_Control OFF
10 2015-05-26 06:07:03 -0400 CO2_Control ON
11 2015-05-26 07:18:07 -0400 CO2_Control OFF
12 2015-05-26 07:34:19 -0400 CO2_Control ON
13 2015-05-26 08:47:54 -0400 CO2_Control OFF
14 2015-05-26 09:04:09 -0400 CO2_Control ON
15 2015-05-26 10:01:00 -0400 Feeder_7_1 ON
16 2015-05-26 10:01:30 -0400 Feeder_7_1 OFF
17 2015-05-26 10:13:56 -0400 CO2_Control OFF
18 2015-05-26 10:29:56 -0400 CO2_Control ON
19 2015-05-26 11:38:29 -0400 CO2_Control OFF
20 2015-05-26 11:54:40 -0400 CO2_Control ON

 

[elfloyd]

The feed pump continues to push water from the sump into the reactor, which causes the pH to rise slowly within the reactor. Increasing the program range will decrease how often the CO2 is turned on.

And I would remove: Defer 010:00 Then ON. This could allow the pH to go higher than the upward setting during the ten minute deferral period. The pH is not going to change quick enough to quickly cycle pH on/off if your range is set right.

Try something like:

Fallback OFF
If pHx9 &gt; 6.90 Then ON
If pHx9 &lt; 6.50 Then OFF
If Swx4_1 CLOSED Then OFF
If Swx4_2 CLOSED Then OFF
If Swx4_3 CLOSED Then OFF
If Swx4_4 CLOSED Then OFF

 

[project1004]

Thanks Larry,

I went and took your advice and changed as you mentioned. I will follow up and let you know if there is any concern going forward!!! ^^