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3.3.3 Sensitivity

Introduction

When/if SmarTac is affected by the welding equipment during searching, and the

trigger reference is set before searching, the sensitivity will be as shown in the

following diagram.

Diagram

The diagram shows SmarTac's working range, which is the area to the right of the

vertical dashed line in the diagram. This line is equivalent to a load of 1.5 k ohm.

Sensitivity = Object contact resistance in ohmsOn the Y axis

Equipment load on the measurement circuit in ohmsOn the X axis

xx1400001477

30 Application manual - SmarTac

3HAC024845-001 Revision: A

3 Application guide

3.3.3 Sensitivity

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ABB SmarTac Specifications

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