If this question has been asked and answered before then I apologize. I've tried to search this forum, but have not been able to find a definitive answer.
I use a Display 2/LT and HCFR 2.0 and a mix of HCFR 2.0 PAL/DVE Pro PAL DVDs to measure on a Pioneer PDP-428XD TV. In HCFR under Configure Sensor there are two options in particular:
"Calibrate internal sensor offsets" and "time during which device calibration remains valid."
In the help documentation it states the following for Display 2/LT (greyed out the section about CRT and made the most interesting parts bold):"The button “Calibrate internal sensor offsets” makes it possible to carry out calibration offsets intern of the probe, in order to obtain reliable measurements. This calibration must be carried out very regularly to claim to obtain precise figures. Note: In CRT mode, probe calibration is made by measuring a white surface displayed by the CRT to calibrate. This way, the probe can synchronize itself on CRT frequency. In all other modes, calibration consists in measuring an absolute black (light input closed)."
Currently I have it set to 10 minutes, but I often make a calibration of the sensor offsets before each set of measurements anyway. I make these sensor offsets calibration with a 0 IRE pattern, but my Pioneer does not output 0.000 ftL with this signal. So, my questions are:
1. How often is it recommended that one should do these sensor offsets calibrations?
2. Should I turn off my TV each time I make a sensor offsets calibration?
Really enjoying this new version, thanks again to the developers