Trumpf Laser 3030

[LaserDude123]

Hello, can anyone help me with a problem that I am having with a Trumpf 3030 laser.

We are experiencing a problem with the machine, it is saying a No coolant flow in the aluminum cooling circuit but when we check the flow sensor (replaced it 2 times) it is still the same. When we checked the hose going into the flow sensor, water is coming out. We have tried adjusting the flow sensor to read only a very small amount of water but the error is still popping up.

Anyone got any ideas on this problem?

 

[JayMaechtlen]

what's the recommended flow rate?
could you disconnect the return line from that circuit, let it flow into a bucket for a known time, see if it actually flowed the specified amount?
(yeah, that's crude - but you could have a restriction in the circuit somewhere -- maybe the flow sensor is telling the truth?)

Jay Maechtlen

http://www.laserpubs.com/techcomm

 

[Co2Laser]

Try swapping out the flowmeter from the Cu circuit with the one from the Alu circuit, and see if you get the same error.
Als if you've done a water change recently, and cleaned the cathode cups, you may have a small piece of debris jamming the impeller on the flowmeter