Need help with Argon Laser

I am only put this out there,

is there a possiblity of having an over current in your system.

or

a faulty inverter

thank for your suggestion

Hello din605

Perhaps the circuit breaker on your generator is faulty.

After much use, the vibrations from the engine sometimes damage mechanical parts in the circuit breaker.

You can check the current if you have a clip-on ammeter onto a single phase wire from the generator.

Take 2 readings:

1. max and hold
2. Peak.

The results should show you if the circuit breaker is faulty.

Remedy is replacement.

Other than that, give details of:

1. Make + Model of Argon Laser
2. Make + Model of Generator
3. Any other relevant information - to enable remote diagnosis.

Kind Regards....

Here is the information of laser i use:

5W argon ion laser (Spectra Physic 165)

and

Below is the generator for the laser

Hello din605

Disregard the part of my earlier reply, where I mentioned vibrations from the Generator.

When You referred to a Generator, I thought you meant an electrical generator, powered by an Internal Combustion Motor.

Your "Generator" is an "Electronic Exciter/Control Module" for the laser.

I am now having further thoughts re your problem, and shall return here tomorrow.

Kind Regards....

What power level (current/voltage) does it trip at? It's only a 5W laser, so maybe the generator is saving it from destruction??

The current cannot excee >20 Amp...and it is 3 phase generator...

Check your supply wiring cables plugs and sockets etc connections , you might have a phase imbalance and your protection circuit is kicking in.

thank for the informations...i'll appreciate it..

I ran into a similar problem years ago. The tube ionizes at low current but cannot be brought up to full power. The exciter uses a transistor bank to control tube current. Under normal operation each transistor has a fuse to remove it from the circuit if the transistor fails. I my specific case a carbon track had formed from the case of one of the transistors to the cooling plate it was mounted to. When the discharge current was increased (and hence voltage) breakdown occurred at the carbon track to the grounded cooling plate. Locating the transistor can be quite tedious. We started removing each transistor and testing. In that effort, by chance we noticed the carbon track and solved our mystery.

In our case the fault was assumed to be caused by condensation from the room air on a very humid day. The chiller which ran continuously had cooled the transistor bank cooling plate below the dew point when the laser was off. We literally had beads of water on the transistor bank. Then on startup the fault occurred.

I cannot say that this precisely the same problem that you are experiencing but do see some interesting similarities in the syptoms described.

Hope this helps and Good Luck!