Mts Series 609 Alignment Fixture Manual de usuario descargar pdf (Pagina 57)

Installing a Gaged Specimen

Series 609 Alignment Fixture Product Information Alignment Procedure

Select force control as your active control mode. Select the most sensitive

operating range. Set and enable displacement interlocks to limit the

actuator’s movement. Or, select a channel-limited-channel control mode

that emulates the configuration described here.

3. Turn on high hydraulic power.

4. Adjust the actuator to near mid-displacement.

5. Position the crosshead so that there is room to install the specimen into the

grips. Lock the crosshead.

Note Always lower the crosshead to its final test position.

6. Position the specimen in the lower grip so that its number one gage faces

forward. Ensure that the strain gages’ leads are not inducing any bending

strain in the specimen. Clamp the specimen in the lower grip.

7. Adjust the actuator to install the specimen into the upper grip. Clamp the

specimen in the upper grip.

8. Adjust your test controller to apply zero force to the specimen.

9. Zero all the output of the specimen’s strain gages.

Note In the next two sections you will be improving concentric and angular

alignment. As you do this, check often to make sure the force applied to

the specimen stays at zero.

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Mts Series 609 Alignment Fixture Manual de usuario Pagina 57