X-RITE 310T calibration question

Hi Clarence -

I would just skip the battery replacement - but I ubderstand the desire to have instruments be completely operationally sound, even if it is just a battery...

I have a Noritsu DM-201 color densitometer and it is handy having a battery in it as it remembers the calibration points for the Vis, R, G, and B of the reflection and transmission cal points. It would be a bit of a pain to punch them in every time, but it would not be bad as I use the densitometer on a non-daily basis. I suspect the same could be said about your machine.

If I was using it on a daily/nearly daily basis, I would just leave it on and let it remember the cal levels while I was using it for that extended period. And I do recalibrate my instrument once a day when I use it. I did control chart the cal accuracy for the first 25 calibrations over a year's worth of time, and I found my Noritsu to be very accurate - usually not more than 0.02 drift over a period of several weeks.

Just make sure you give the machine several minutes of warmup time after it's been off.

Kirk

PS - did you get an emulsion made? I still need to buy some AgNO3 and get a stirrer/hotplate. And how did the wife take it when the giant cameras were unload from your car? Did you have to tie a cariboo up in the backyard to hide the camera from her?

Oh, and get the X-rite cal standards. They are calibrated with color vaues and work nicely. I don't know about the Stouffer cals being in RGB. Maybe someone else can answer that...

Hi Kirk,

I agree that the battery is not necessary. I would re-cal daily anyway, and probably not use the unit for a week or so at a time. I don't want to leave the unit on all day, since the bulbs are rather dear. If I were using it for production work, the bulb would be a minor cost. I think a battery would be useful if I shut the machine off and then found I wanted to make some further tests on the same day. I find I am always forgetting something, or want to measure a new area.

I will get the X-Rite wedge.

As for emulsion, I just brought the AgN03 in from storage, so I hope to do one tonight.

As far as the 12x20 and 20x24 are concerned, she is truly a patient woman. I got very busy taking a family portrait, thereby proving that the equipment is essential to family history. It is an awful lot of mega pixels after all - I wouldn't even know where to begin calculating.

Caribou aren't big enough to hide those cameras. Besides, the caribou don't move near to us until winter time, and then we eat them. It may be the tastiest meat I have ever eaten.

pace vegetarians

Hope all is well with your family.

Cheers,
Clarence

"Hope all is well with your family."

It is. And thanks for the update on yours.

Kirk

Now, get to work making emulsions!

PE

I love it when you are strict with me!

Photo Engineer said:

Now, get to work making emulsions!

PE

Click to expand...

Yes sir, right away sir, three bags full sir. Actually, tonight is the night and it's got to go right.

Will report back (on the emulsion thread) after coating on Saturday.

Yep, I know, just do it.


Cheers,
Clarence

Three bags full of what, may I ask? (wool?)

PE

Ron - there's no sheep in the Northwest Territories.

He must be talking about bags of lichen. Or maybe those really cute seal pelts everyone wears when they go out onto the ice.

Or perhaps industrial grade diamonds from the Nunavut mine up there, if we're lucky...