Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

[ic-racer]

Yes, I believe any timer will work as the timer only powers a relay inside the EST2000.

I also suspect the current draw will only be 1500 watts or so with the low power setting.

[Thodoris Tzalavras]

Thank you ic-racer.
Not ready yet to attempt actual printing, since there are still many things that need fixing…
I'm taking it a step at a time…
Safety first…

[gary mulder]

The EST2000 draws 1,62 kW switched to 1000 watt. But as a result of it's power factor it still takes almost 10 A

[Thodoris Tzalavras]

Thanks Gary,
That's very helpful.
The breaker for the wall outlets in my darkroom is 40A, but all my cables from the wall outlets towards any device which is not close to a wall are 13A.
The short length cables that came with my L184/CLS2000 are 16A.
I just wanted to make sure that I won't have any issues of overheating.
This is partly why I'm thinking of using the 1000w option.
Also, for the 100 more hours of projected lamp life…

[Thodoris Tzalavras]

Does anyone know of a source for dichroic filters for the CLS 2000 head?

A preliminary search shows that most places top out at 50mm square, which is too small.

Specifically, I need to replace the Magenta filter, but since I only print black and white, Blue would work as well.

Also, even though the user manual says to "clean the color filters from time to time", I don't see how I could access the filters without completely opening up the head.
If any of you have done this, please let me know how.

[Drew Wiley]

Cleaning filters is tricky, and you must be very gentle. And yes, they're hard to get to. A blue filter would be significantly more dense than a magenta one. For sake of fire safety, your colorhead must be well cooled with the fan sending the hot air outdoors, and the head should be well below the ceiling. I personally have Fire Resistant fiberglass panels above and behind my L184 systems.

Coating companies can supply any size filter you need, but I don't know Euro sources. Hoya Industrial in Japan can do it.

[Thodoris Tzalavras]

Question:

According to the manual, there are 2 IR filters between the halogen lamp and the dichroic filters…

In my head, there is only one…

Could anyone check and let me know if theirs has one or two?

[Thodoris Tzalavras]

Relating to my above question about the IR filter(s) in the CLS 2000 head:

I'm currently talking (email) with Kienzle in Germany about the possibility of buying replacement dichroic and IR filters from them.

So, if anyone can verify the number/size/type of the proper IR filter for this head, I would greatly appreciate it.

By the way, I think that you can see if your head has one or two IR filters without having to open up the top part of the head… lifting the lamp holder and removing the reflector gives full view of the IR filter. You can't remove it from this position, but you can visually inspect it.

My head has only one glass in this position (#32 in the above diagram) which measures 110 x 110 x 2mm.

[gary mulder]

Between the shutter and the dichroic filters. About 72x72 mm. A frame with a IR filter and a series glas rods.
(Picture’s from my spare parts donor )

[Thodoris Tzalavras]

Hi Gary,

Thank you so much for jumping in, I just saved your pics and measurements in my reference folder…

The filter in your picture is the #33 in the diagram in post #877 just above, which is referred to as UV-absorbing in the text.

I'm considering replacing the #32 filter , which is _above_ the dichroic filters, and between them and the lamp/reflector, which is referred to as IR-absorbing in the text.

I would appreciate any info you might have on it!