OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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The UCA unit should be calibrated initially upon install. It should then be
calibrated whenever any part of the test cell, transducers, control card or
software are changed.
1. Start the UCA software.
2. Put the “UCA/SGSM” switch to the UCA position.
3.
Begin by filling the test cell with distilled water and placing it in the unit as
described in the “Connecting the Cell” section on page 29.
4. Wait for the sample temperature to reach 70° ± 2°F (21.1° ± 1.1°C).
If the sample temperature is outside this range, transit time may be different
than expected.
5. Click the “Set Xmitter On” button.
6. The transit time should be 17.0 ± 2.0 µsec (at room temperature). If the
transit time is within the acceptable range, click “OK” to save the calibration
and continue.
If the transit time is not within this range, it could be an indication that the
transducers are failing or the transducer cables are damaged. Inspect and
clean the transducers as well as the transducer cables and connections. If
the transit time is still out of range, then you may need to get replacement
parts for the transducers or cables. See page 29.
If the software displays an error message, contact OFITE for support.
7. Click the “Set Xmitter Off” button to turn off the transmitter.
Calibration
Ultrasonic Transducer