Originally Posted by rswood
WiFI, is this true, when my C6 2000 gets out of compliance it cant be fixed? I just sent mine back for re-certification, but nothing is fixed if I have errors?
Generally talking about calibration instruments, there 2 procedures, the re-certification and the re-calibration.
For example JETI offers both, if you send your JETI spectroradiometer, they can tell you (will less money from actual re-calibration service price) if the instrument need re-calibration or not. They call this as 'Pass/Fail Check' not exact re-certification.
The re-certification means you check the meter for just a pass/fail, if it has large deviation then you don't provide a new certification. The meter need to perform with largest deviation of xy +-000.1 and Y +-2% from the reference material.
The re-calibration (something even X-Rite Repairing Center is not offering for i1Display PRO) means that you have to re-characterize with 1-per-1 nano-meter accuracy each meter sensor/filter spectral characteristics data using a laboratory grade scanning double monochromator and then upload the new data internally to the colorimeter, this is how colorimeters with spectral characterization technology work and this is the only way to correct an instrument that has been drifted and be out of specs. (also to perform the same process with second mode the meter has, with the integrated ambient measurement diffuser, because each diffuser i1Display PRO (or C6) are equipped are unique for each meter and there data also to the meter memory for that calibration additionally.)
All the other meter tables (created from X-Rite for i1Display PRO or from SpectraCAL for C6) are EDR files (Emissive Display Reference) created also by taking 1 nanometer spectral measurements of different display types, and they are coming as files inside CalMAN' installation folder, internally to the instrument only the default sensor calibration data is stored (Its the selection of RAW XYZ in CalMAN).
So when you select for example WRGB Table for C6, the sensor spectral factory (RAW XYZ) sensor data (1nm) is combined with the WRGB OLED EDR file (1nm) spectral data and give a corrected XYZ value, then that value is converted using CIE1913 CMF (default CMF) from CalMAN (with 64-bit) to xyY reading you see at the software UI charts.
One of the first ever shipped SpectraCAL C6 Special Edition was my meter, I had pre-ordered when its been announced.....here is the NIST paper:
..and a SpectraCAL C6-HDR2000 also, here is his NIST Paper:
Originally Posted by WiFi-Spy
We re-certify it in our color lab against our Photo Research PR
-740. If it passes the test we provide a one year NIST certification.
Both NIST papers say that 'calibration was performed
', these words are not clear if SpectraCAL providing a spectral re-calibration of sensor data (and upload internally to the C6 the new spectral data) or a pass/fail using a reference spectro for that test (without able to modify any spectral data), measuring an LCD monitor as Portrait site has the following picture:
Originally Posted by rswood
Tyler, so in English that means what? When the meter is sent back to me it has been tested and if errors are found they are fixed internally on the meter or an offset has been applied through my Calman software when I open the app.
Can you explain.
I have the exact same interest like you, for my C6: