Need some help adjusting my co2 regulator.

Ding2daDong

Ding2daDong

New member
I am trying to setup my geo 618 calcium reactor and am having a problem reading and adjusting the regulator. I have an off name brand regulator with two gauges that I have no idea which does what. Then in the middle of the regulator is a big screw that when I move it, it moves the top most gauge.

I have no idea what I am doing and what setting to adjust the top most gauge. I remember hearing not to go above 10 psi on one of the gauges?

Any help would be greatly appreciated.

Thanks

-Matthew
 
Matt, it is pretty simple. It's a Norgen regulator.

The screw in the middle adjusts the first pressure from the cylinder to the regulator, then your needlevalve adjusts the pressure from the regulator to the reactor. One of the gauges should be the CO2 tank's pressure (usually stays constant once you turn the CO2 on) and the other is the first output pressure, which will be what you set with the center screw valve. After that, you use the needlevalve to adjust your bubble rate precisely.
 
Thanks for all the help.

Now I am having trouble setting up the pinpoint pH conrollers. I can't seem to setup the low and high without touching the center? Could they have made this a little easier because I am stumped?

Any help would be greatly appreciated.

Thanks

-Matthew
 
Come on guys I really need help setting the high/center/low for this pinpoint pH controller. I know many of you have this unit on your calcium reactor and I could really use the help.

Thanks

-Matthew
 
you need to regulate the slope and then set the high and low, make sure you connect the regulator to the outlet that switches off when you reached the low point
 
<a href=showthread.php?s=&postid=11970421#post11970421 target=_blank>Originally posted</a> by Rogger Castells
C'mon Manny men don't need instructions......then again! he is in medical school! :D
Click to expand...
buddy my days of medical school are far behind. About lets say 10 years or so.

Anyways reading is always fun- just trying to help.
I've never used pinpoint so no help here.
 
<a href=showthread.php?s=&postid=11970435#post11970435 target=_blank>Originally posted</a> by Ding2daDong
LOL I have the directions but they don't make any sense when I actually try to adjust the high/center/low.

Thanks for the help

-Matthew
Click to expand...
It is really simple.

a) Turn the range screw all the way to the minimum
b) Turn the switch on the right to high
c) Adjust the center value screw to the PH value you want the CO2 to open (Say 6.8)
d) Return the switch to the read position
e) Plug the solenoid to the top left outlet of the controller (Viewing the controller from the front the one closer to the power cord)

You are done.

Now the explanation:

Turning the range to the minimum will give you a range of aproximately 0.2 PH units between High and Low so if you set the high at say 6.8 your minimum will be around 6.6 and your center will be 6.7.
In this example the outlet on the left turns on at 6.8 and off at 6.7
The outlet on the right turns off at 6.7 and turns on at 6.6
In reality there is no such a thing as a center. basically the upper half controls the outlet on the left and the lower half controls the outlet on the right.

For a calcium reactor (Which lowers PH) you use the outlet on the left. So in this example the PH of the effluent will be maintained between 6.7 and 6.8 If you want a lower PH all you need to do is move the switch to high, adjust the screw labeled center value to a lower high (say lower it from 6.8 to 6.6) and the center is automatically moved from 6.7 to 6.5 and the Low (which for Ca reactor is irrelevant) will move from 6.6 to 6.4, return the switch to read. Now the controller will keep PH between 6.6 (the new high) and 6.5 (The new center) by opening the CO2 at 6.6 and closing it at 6.5
 
Last edited:
<a href=showthread.php?s=&postid=11970737#post11970737 target=_blank>Originally posted</a> by Rogger Castells
Read the instructions! I was referring to Matt
Click to expand...
duuuuuh got it lol

back to the thread thx Jdieck!
 
I know that with the same pH controller (it's my old one), I used to go nuts, because each time you move the switch, it changes the pH displayed. I understand that when it's on "high," it's displaying the range height, but then when you switch it back to the middle neutral position, the original pH that was displayed changes as much as you turned the dial to set the range screw with.... I dunno, maybe I dont' remember it well, but I know I got frustrated with it, hence why I got an aquatronica with pH probe to control my reactor pH :)
 
<a href=showthread.php?s=&postid=11970755#post11970755 target=_blank>Originally posted</a> by jdieck
It is really simple.

a) Turn the range screw all the way to the minimum
b) Turn the switch on the right to high
c) Adjust the center value screw to the PH value you want the CO2 to open (Say 6.8)
d) Return the switch to the read position
e) Plug the solenoid to the top left outlet of the controller (Viewing the controller from the front the one closer to the power cord)

You are done.

Now the explanation:

Turning the range to the minimum will give you a range of aproximately 0.2 PH units between High and Low so if you set the high at say 6.8 your minimum will be around 6.6 and your center will be 6.7.
In this example the outlet on the left turns on at 6.8 and off at 6.7
The outlet on the right turns off at 6.7 and turns on at 6.6
In reality there is no such a thing as a center. basically the upper half controls the outlet on the left and the lower half controls the outlet on the right.

For a calcium reactor (Which lowers PH) you use the outlet on the left. So in this example the PH of the effluent will be maintained between 6.7 and 6.8 If you want a lower PH all you need to do is move the switch to high, adjust the screw labeled center value to a lower high (say lower it from 6.8 to 6.6) and the center is automatically moved from 6.7 to 6.5 and the Low (which for Ca reactor is irrelevant) will move from 6.6 to 6.4, return the switch to read. Now the controller will keep PH between 6.6 (the new high) and 6.5 (The new center) by opening the CO2 at 6.6 and closing it at 6.5
Click to expand...

This is what I was looking for! Thank you!!

-Matthew
 
<a href=showthread.php?s=&postid=11970928#post11970928 target=_blank>Originally posted</a> by ReefWreak
I know that with the same pH controller (it's my old one), I used to go nuts, because each time you move the switch, it changes the pH displayed. I understand that when it's on "high," it's displaying the range height, but then when you switch it back to the middle neutral position, the original pH that was displayed changes as much as you turned the dial to set the range screw with.... I dunno, maybe I dont' remember it well, but I know I got frustrated with it, hence why I got an aquatronica with pH probe to control my reactor pH :)
Click to expand...
When you set the switch to the center position or "read" the PH displayed is the actual PH being measured regardles of the set points and could be lower, higher or in between the set range.

When you move the switch to high the PH displayed will be the high set point, when you switch it to the low position it will show the PH of the low set point of the range. There is no way to show the center position of the PH, just add the high and low and divide by two to get the center set point which is the point were both outlets turn off.

The difference between high and low (the span of control) is set with the range screw.
 
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