Quadrature Position & Rate Meters

GENERAL ORDERING INFORMATION:

Specify Meter Color & Digit Size, Meter Power and a Signal Conditioner from the list below. Specify Analog Output, Setpoint Output and Digital Interface if needed. These meters are shipped with a standard configuration and range shown below for each signal conditioner and output option type. All information for making changes is covered in the supplied Owners Manual. For other scalings or configurations, add the SC (Special Configuration) option.

DESCRIPTIONS:

Micro quadrature meters with the Standard counter main board accept the A & B signals from shaft encoders to provide a highly accurate, scaled display of position, length, or angle in engineering units, such as ft, cm or degrees.

The A & B quadrature signals are 90º out of phase, and their phase relationship determines whether up counts (+) or down counts (-) are produced. The meter totalizes the counts and then scales the total in soft-ware for display and control. A zero index signal may be added as a third input to the A & B signals.

Duty cycle measurement is used to monitor modulated proportional control systems and pulse-modulated systems, such as radar, lasers or packet radio. For long periods, duty cycle can be measured by using the A and B channels of the Micro dual-channel counter to totalize AC line cycles and having the counter display the ratio of the two totals scaled to percent.

The Micro duty cycle meter uses the FR dual-channel signal conditioner board and Extended counter main board.