Ah yes, "internal politics" - one of the "joys" in the life of the front-line (hospital based) biomed.

"Let sleeping dogs lay" would be my advice to Abdulaziz. Having come across a fair number of stroppy lab techs in my time, I would suggest:- ignore the whole thing (them), and hopefully it will just wither on the vine.

@Abdulaziz:- which "calibration" are we talking about? And who is supposed to carry it out? The lab techs?
Also (out of interest), is the ABL only in the main lab, or in places like ICU as well?
Here's the User Manual
.pdf for easy reference.