Meter - Basic Operations

A meter shows the value of a monitored variable by rotating its needle to the appropriate place. When the value of the variable increases or decreases, the rotation angle of the needle increases or decreases accordingly. A meter can have an arc/circle scale that enables you to measure the rotation angle of the needle and read the current value for the monitored variable. A meter can be configured to perform one of the following swing types:

Span and Origin	360° & 90°	360° & 0°	360° & 270°	360° & 180°
Example
Span and Origin	270° & 45°	270° & 315°	270° & 225°	270° & 135°
Example
Span and Origin	180° & 90°	180° & 0°	180° & 270°	180° & 180°
Example
Span and Origin	90° & 90°	90° & 0°	90° & 270°	90° & 180°
Example
Span and Origin	90° & 45°	90° & 315°	90° & 225°	90° & 135°
Example

Note: The appearance of meters' needle and scale is improved by the anti-aliasing graphic functions.

You can complete all the settings of a meter in the Meter property sheet. This sheet contains the following four pages.

■ General
Described in Section 8.2.4.

■ Range
Described in Section 8.2.5.

■ Scale
Described in Section 4.4.4.

■ Visibility
Described in Section 4.4.6.