Difference between Nuarc 26-1K and 26-1KS

[sdivot]

Hi, Can someone tell me the difference between these two models? Advantages of one over the other, etc.
Thanks,
Steve

 

[sanking]

Hi, Can someone tell me the difference between these two models? Advantages of one over the other, etc.
Thanks,
Steve

The most important difference is that the 26-1k uses a mercury vapor lamp, the 26-1ks a metal halide lamp. Both units radiate about the same amount of useful UV radiation, but the metal halide lamp reaches full radiation after turn on in less than half the time of the mercury vapor lamp.

Another consideration is that the 26-1k is the older of the two units, which means there is a good chance it will have received a lot more use than the 26-1ks.

Sandy King

 

[sdivot]

Thanks Sandy,
When you say less than half the warmup time between the two units, are we talking about seconds or minutes? I read about your varying densities when do you did print after print without waiting about twenty minutes between prints for the unit to "cool down". Does the 26-1Ks alleviate this warm up issue?
I just bought a 26-1K on ebay. How long do you recommend waiting between prints to achieve consistent repeatable results? 20 minutes?
Thanks for the info,
Steve

 

[sanking]

Thanks Sandy,
When you say less than half the warmup time between the two units, are we talking about seconds or minutes? I read about your varying densities when do you did print after print without waiting about twenty minutes between prints for the unit to "cool down". Does the 26-1Ks alleviate this warm up issue?
I just bought a 26-1K on ebay. How long do you recommend waiting between prints to achieve consistent repeatable results? 20 minutes?
Thanks for the info,
Steve

Steve,

I no longer have the NuArc 25-1k, having replaced it with an Amergraph ULF-28. However, my recollection is that it took the 26-1k between 1-1.5 minutes to reach full output. Of course, the light integrator makes exposures in units rather than seconds so the delay in reaching full radiation is not a major obstacle.

The best way I found to get consistent results with multple prints was by first leaving the unit on for about two minutes, then turning it off and waiting for two minutes until the first exposure, waiting another two minutes for the second, etc. I was able to get very consisstent results working this way.

Sandy King

 

[Albin]

The most important difference is that the 26-1k uses a mercury vapor lamp, the 26-1ks a metal halide lamp. Both units radiate about the same amount of useful UV radiation, but the metal halide lamp reaches full radiation after turn on in less than half the time of the mercury vapor lamp.

Another consideration is that the 26-1k is the older of the two units, which means there is a good chance it will have received a lot more use than the 26-1ks.

Sandy King

Any body can tell me where I can get Nuarc 26-1KS bulb. The only information I have ison the bulb is: Nuarc X2T and NP4 44/1.
Thank You

 

[RobertP]

Atlantalightbulbs.com

 

[JLP]

You can also get light bulbs for the 26-1Ks here: http://www.mrprint.com/en/ProductOverview.aspx?id=1
I use this model and am very happy with it's performance.
It takes about 30 seconds to reach full output but as Sandy says it is counting units so the first units are just slower than after 30 seconds.


jan

 

[Steve Sherman]

Having recently gone through the process of finding a replacement bulf for my 26 1K "S" model.

 

[Steve Sherman]

Having recently gone through the process of finding a replacement bulf for my 26 1K "S" model.

It is my understanding that the newer 1KS model is noticeably faster, however the cost difference in bulbs is several hundred $$. As I recall about $50.00 versus $242.00 for the newer Metal Halide bulb which I got from Atlantic Bulb Company, BTW they graciously took back the first bulb I purchased for the 26 1K model.

Cheers

 

[Jim Fitzgerald]

I've been looking for one of these units in Southern California for a while. They all seem to be in the mid-west. Are large print shops the best place to look for these units? Thanks.

Jim

 

[JLP]

Found mine on Craigs list in Seattle, a bit of driving from Portland but the price was fair.


jan

 

[Deleted member 19578]

So Cal source for exposure unit...

I would start calling your local print shops... I found a very nice tabletop mercury unit in my area for $300. Some shops are willing to "give" this equipment away because they don't use them.

You can also try these sites for used pre-press equip:
http://www.printrade.com/classified/cats/3500.html
http://www.print-world.com/classifieds/ads.asp?categoryID=5
http://www.prepressforums.com/forum/items-sale/

I am very pleased with my mercury bulb unit, especially since the replacement bulb was $35!

John "Alpha Flying Monkey" Moore

 

[Jim Fitzgerald]

Thanks for the sources and info.

Jim

 

[Albin]

Atlantalightbulbs.com

Thank You very much.

 

[Jim Fitzgerald]

I know this is an old post but I just got a Nuarc 26 1KS and was curious if anyone has a manual for this unit? I'm going to have to do some exposure tests but I would like to read up if possible.
Thanks.

Jim

 

[JLP]

Jim, Perseverance paid of.
I believe you can download a manual from the link in my first post in this thread, it is however not a very useful manual but as far as in know it is the only manual available.

 

[Jim Fitzgerald]

Jan, thanks. I went to the Nuarc website and it didn't give me any info that was helpful. My concern is with the integrator. How does it work. There are 8 presets. I'm going to have to play with it i guess to figure out my exposures. I know that one unit is suppose to be one second of exposure. Time to play with some carbon exposures I guess. Thanks.

Jim

 

[RobertP]

I've owned three of these units. A unit of light is not equal to a second. Although you can adjust them to be close to a second. But there is really no need to. Just develop your work flow in units and forget about seconds. You will notice the integrator runs slow on start up and will increase in speed as the unit warms up and the light intensity increases. But if your heart is set on knowing how many seconds then by all means start adjusting your photocell until to you have it set on one second equals one unit.