Kaman KD-2300 Bedienungsanleitung PDF herunterladen (Seite 29)

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• Part IV: Calibration KD-2300 Instruction Manual

Gain Control

Gain control affects the change in output of a system in volts due to a given change

in displacement. In other words, gain controls the sensitivity of the system output.

The diagram shows how the slope of the output curve changes as gain is increased

and decreased.

INCREASED GAIN

INITIAL CALIBRATION

DECREASED GAIN

+OUTPUT-OUTPUT

Linearity

Coarse and Fine Linearity controls affect the shape of the system output curve.

The closer the output is to a straight line, the more accurate your measurement

readings will be. Adjustment of the Linearity controls interacts with the Gain

and Zero controls. The linearity control is primarily used to swing the full scale

endpoint. Due to the effect of the log amp, it will have some effect on the gain

and less effect on the zero.

The Three Calibration Methods

You have the option of choosing from three methods of calibration:

Full Scale:

Output from 0 Vdc to some maximum value.

Bipolar: Negative output for first half of range; positive

output for second half.

High Accuracy Band:

Increased linearity by using only part of full-

scale measuring range.

Depending on your application, you will use any one of three procedures

outlined above to calibrate your system. Before calibration, we recommend that

you become familiar with the following information to ensure that you have

made the necessary considerations regarding your particular application.

With a thorough knowledge of calibration variables and accurate application of

the calibration procedures described in the following pages, you can achieve

optimum results.

Deviations or shortcuts can result in operator-induced errors and

may complicate rather than solve your measurement problems.

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Kaman KD-2300 Bedienungsanleitung Seite 29