Tokyo Keiki UFL-30, Installation & Operation Manual

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Usage Precautions
This instrument is used to measure flow quantities by means of ultrasound. For safe usage
and optimum performance of the flowmeter, always operate the instrument according to the
usage precautions below.
WARNING
Do not open the inner panel while feeding power.
Do not modify and disassemble the unit.
These actions may result in electrical shock or equipment damage.
CAUTION
1. Failure to comply with one or more of the following conditions may result in poor
measurement performance or incorrect measurement values.
・
Use an appropriate power supply rated for the voltage range designated in the
specifications.
・
Fill pipes entirely with water.
・
Be sure bubbles or particles that might interfere with ultrasonic waves are absent
during measurement.
・
Position the transducer in accordance with the required straight pipe length.
・
Do not subject the transducer to vibration or mechanical shock.
・
Place the flowmeter unit, transducer and cable in a location without noise
interference.
・
Use the equipment within the predetermined ambient temperature and humidity
range.
・
Do not remove cable glands that attached with main unit. In case of removal it,
main unit can not satisfy performance of protection class.
2. If the signal level is below the minimum detection requirement of the instrument, the
LCD display of the main unit will display the R (no wave reception) alarm.
The D (disturbance) alarm is triggered when an abnormal measurement value is
detected.
Note that in both cases the flowmeter may display the flow value preceding the alarm.
3. Be sure to use the instructions in the Manual when changing settings on the main
flowmeter unit (maximum flow, integration units, etc.). Incorrect settings will result in
poor performance or incorrect measurement values (output signals).
4. If this manual is lost, contact the nearest dealership.