MX-5 Ultrasonic Thickness Gauge
Probe Zero
Setting the Zero Point of the MX-5is important for the same reason that setting the zero on a mechanical micrometer is important. If the gauge is not "zeroed" correctly, all of the measurements the gauge makes will be in error by some fixed number. When the MX-5is "zeroed", this fixed error value is measured and automatically corrected for in all subsequent measurements. The MX-5may be "zeroed" by performing the following procedure:
Performing a Probe-Zero
1)Make sure the M X-5is on.
2)Plug the transducer into the MX-5. Make sure that the connectors are fully engaged. Check that the wearface of the transducer is clean and free of any debris.
3)The metal probe-disc is on the top end of the MX-5. Apply a single droplet of ultrasonic couplant to the face of this disc.
4)Press the transducer against the probe-disc, making sure that the transducer sits flat against the surface. The display should show some thickness value, and the Stability Indicator should have nearly all its bars illuminated.
5)While the transducer is firmly coupled to the probe-disc, press the PRB-0key on the keypad. The MX-5will display "Prb0" while it is calculating its zero point
6)Remove the transducer from the probe-disc.
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