The EVC is designed for converting of gas volume in various ambient operating temperatures conditions to gas volume in standard conditions according to state equation. For that purpose it reads impulses from gas meter, measures gas temperature and pressure.
Specification Details for EVC - Gas Central Heating Systems (Gas Central Heating Systems)
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Ener-G Switch2 is consulted before specifying.