Magnetic stirrer

LisaAP · Mar 23, 2022

Hi there, I have a band new GHL magnetic stirrer but I just can't seem to get it to work. It's the model 2 stirrer and I have it connected to a doser 2.1 SA. The firmware 1.35. I can't decide if it's broken or I'm just being an idiot. I think I understand how to programme it but nothing happens, I can't even get it to stir using the manual override. I need a little help please.

LisaAP · Mar 23, 2022

OK, scratch that. I tried a different port on the back of the doser and it works now. Bizarre, oh well problem solved (I think, lol).

Lasse · Mar 24, 2022

LisaAP said:
OK, scratch that. I tried a different port on the back of the doser and it works now. Bizarre, oh well problem solved (I think, lol).

The ports on the backside follow your numbering of the doser pumps. If your pump head is doser 7 - the third head of your second doser - the third outlet on your second doser at the back is stirrer 7.

Sincerely Lasse

LisaAP · Mar 26, 2022

Lasse said:
The ports on the backside follow your numbering of the doser pumps. If your pump head is doser 7 - the third head of your second doser - the third outlet on your second doser at the back is stirrer 7.

Sincerely Lasse

Yeah I had it plugged into port 4 in the doser but no matter what programme combination I used it wouldn't switch on. Then I changed it to port 1 but still activated by doser head 4 and it worked fine.

Lasse · Mar 26, 2022

You are aware that they are not numbering cross the unit? The stirrer port that is closed to pump head 4 is stirrer number 1.

Sincerely Lasse

LisaAP · Mar 26, 2022

I thought it would be easiest to plug the mixer into the port numbered 4 to be triggered doser head 4, makes sense right? (The port farthest wall away from head 4

) Now however it’s in port 1 but still triggered by doser head 4. I should probably try it in port 4 again but it’s working now so I’m hesitant to mess with it now. If it’s not broke and all that….

Lasse · Mar 26, 2022

If it works - do not mess with it

Sincerely Lasse

LisaAP · Mar 31, 2022

Lasse said:
If it works - do not mess with it

Sincerely Lasse

Hi Lasse, I have another question for you. So, being a sucker for punishment, I have added a second stirrer.

Both are sitting side by side and have exactly the same settings. Both are set to speed number 1. The first mixer works great but the second one spins much faster producing a vortex. I have tried adjusting the speed settings higher and then back down again but it still spins a lot faster that the other unit. Also when I switch it to manual override, it spins fast then slower before speeding up again randomly. Any chance of an explanation as to what's going on here?

Lasse · Mar 31, 2022

LisaAP said:
Hi Lasse, I have another question for you. So, being a sucker for punishment, I have added a second stirrer. Both are sitting side by side and have exactly the same settings. Both are set to speed number 1. The first mixer works great but the second one spins much faster producing a vortex. I have tried adjusting the speed settings higher and then back down again but it still spins a lot faster that the other unit. Also when I switch it to manual override, it spins fast then slower before speeding up again randomly. Any chance of an explanation as to what's going on here?

Nope Speed and GHL stirrers is a huge mystery even for me

But - there is two type of stirrers - type 1 and 2. Turn them upside down and there should be a 1 or a 2 at the bottom. See the red marking - it should correspond to the marking under the stirrer

Sincerely Lasse

LisaAP · Mar 31, 2022

Lasse said:
Nope Speed and GHL stirrers is a huge mystery even for me But - there is two type of stirrers - type 1 and 2. Turn them upside down and there should be a 1 or a 2 at the bottom. See the red marking - it should correspond to the marking under the stirrer

Sincerely Lasse

I have type 2, does that make a difference?