cxp073
Well-Known Member
- Joined
- Dec 3, 2013
- Messages
- 83
- Reaction score
- 3
Ok, so I've posted about my problems a couple of times but I wanted to sum up my issues in a LAST DITCH ATTEMPT before I try HERMS.
I have the following system:
10 gallon cooler w/ rims tube mounted to the side of the cooler vertically.
SESTOS PID with pt100 sensor mounted on the output of the rims tube. Auto tuned.
3kw 240v LWD element running on 240volts
12v pump max flow 10l per minute with a ball valve on the output. The pump is approximately 1 foot below the output of the MT. The pump is definitely mounted correctly (output side higher than the input)
The wort return tube from the top of the rims tube is approximately 4 feet.
The problem:
At low temperatures, steps in temperature occur without issues. However, when I step from 62 to 70, the RIMS OUTPUT tube that returns the wort to the MT starts to shake ONLY WHEN THE ELEMENT TURNS ON. The shaking is even worse when I go from 70 to 78c for mash out and the wort returning to the MT starts to pulse in flow. The shaking and pulsing only occurs when the element turns on and increases in intensity the longer the element is turned on. This occurs both at a low flow rate (3 litres per min) and a high one (full throttle) albeit to a slightly lesser extent because the temp ramps quicker and hits its target faster.
The pump makes no noise difference or anyhing during these pulses
Do you guys have any idea of what I can do to fix this? As I said, I'm getting really tired of filling this thing up with water and trouble shooting for hours on end. If I can't find a solution quickly I will need to try another system help!
I have the following system:
10 gallon cooler w/ rims tube mounted to the side of the cooler vertically.
SESTOS PID with pt100 sensor mounted on the output of the rims tube. Auto tuned.
3kw 240v LWD element running on 240volts
12v pump max flow 10l per minute with a ball valve on the output. The pump is approximately 1 foot below the output of the MT. The pump is definitely mounted correctly (output side higher than the input)
The wort return tube from the top of the rims tube is approximately 4 feet.
The problem:
At low temperatures, steps in temperature occur without issues. However, when I step from 62 to 70, the RIMS OUTPUT tube that returns the wort to the MT starts to shake ONLY WHEN THE ELEMENT TURNS ON. The shaking is even worse when I go from 70 to 78c for mash out and the wort returning to the MT starts to pulse in flow. The shaking and pulsing only occurs when the element turns on and increases in intensity the longer the element is turned on. This occurs both at a low flow rate (3 litres per min) and a high one (full throttle) albeit to a slightly lesser extent because the temp ramps quicker and hits its target faster.
The pump makes no noise difference or anyhing during these pulses
Do you guys have any idea of what I can do to fix this? As I said, I'm getting really tired of filling this thing up with water and trouble shooting for hours on end. If I can't find a solution quickly I will need to try another system help!