Three frequency weighting networks called A, C and Z are available simultaneously
Enabling a weighting network does not automatically enable any measurement function. You must enter the Functions menu end enable the A, C or Z weighted functions required. Deselecting a weighting network removes the corresponding network from the Functions menu.
Weighting network in Idle mode chooses which weigting network that is applied to the levels in idle mode. The frequency graph is not affected by this. To see an A-weighted frequency graph, please use the Context menu.
For more information about frequency weighting, please see Frequency weighting specifications