Urgent need! Find the calculation formula for carbon monoxide medium orifice flow meters (including temperature and pressure compensation)

I don’t have a formula editor handy, so I’ll roughly explain it to you; you can derive the formula on your own. . I can only help you up to this point. For carbon monoxide, the volumetric flow rate is given by k multiplied by the square root of the ratio of differential pressure to density. The pressure stabilization compensation actually serves to compensate for this density; if you replace density with m per V, then the pressure stabilization compensation will instead compensate for V. Using the equation PV/T = constant, where P and T refer to the operating temperature and pressure specified in the manual, and another set of P and T values represent the actually measured temperature and pressure, once you know the volumetric flow rate before compensation, along with the operating and actual P and T values, you can calculate the flow rate using the actual P and T values