CheckStar Rotary Transducer0 pages

CheckStar

In line rotary transducer

Key Features
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In line transducer with optional angle measurement

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Low inertia benefits accurate dynamic measurement

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Product Overview

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Accuracy +/- 0.25% of full scale

Angle measurement option with no size increase (0.5°

resolution)

Patented design ensures no brush bounce even when

used with impulse tools

Low friction eliminates wear and supports accuracy
Suitable for use with all continuous drive tools,

impulse tools and torque wrenches
High signal to noise ratio

Automatic transducer recognition with Crane readout

devices

Square and hex drives available

Industry Standard (IS) versions available (2mV/V;

1.475mV/V)

Compact design

Crane’s CheckStar sets the standard for dynamic torque and angle measurement of all continuous drive and impulse

tools, with proven reliable performance in thousands of applications worldwide.

CheckStar transducers fit in-line between the assembly tool and the fastener, measuring the actual torques applied and angular

rotation of the fastener, under production conditions.

Whatever the vibration and shock loads experienced, CheckStar’s patented contact system ensures a connection is always

maintained between the readout and the strain gauges. Inferior systems suffer from “brush bounce” that leads to unreliable torque

readings.

The low inertia design of CheckStar ensures accurate and repeatable measurement of high speed transients, such as the point

of shut-off on continuous drive tools and the pulsing of impulse tools.

CheckStar forms an essential part of the Crane UTA torque system. On board intelligence means the UTA CheckStar is

automatically recognised by the Crane readout device, eliminating set-up errors and enabling logging of serial number against

measurements for complete traceability. An Industry Standard (IS) version is also available where a user needs the advanced

features of the CheckStar but already has a readout device from another manufacturer. Both versions can be specified to include

an angle encoder with 0.5° resolution.

www.crane-electronics.com