User guide

AMP1A Series User Guide

Internal Switch Settings

Scale Selection

The standard scale used on the 30-segment bar graph display for the

AMP1A-30 is the Extended VU scale. However, if alternative scale

characteristics are selected for the level meters by setting the Alternate

Scale DIP switches (Figure 1–12 on page 17), it is recommended that a

label with the appropriate scale be applied to the front panel LED bar

graph level meters. Alternate scales include the VU, BBC, Nordic, and

DIN scales. The Extended VU scale is the standard scale for all AMP1A

Series models. See Figure 1–14 below for 30-segment alternate scales.

Contact Wohler Technologies for more information about Alternate

Scale labels.

Figure 1–14 30-Segment Scale Selection Options

Figure 1–15 106-Segment Scale Selection Options