Product Manual

Wall Mounted Ultrasonic Flowmeter---User Manual
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Noted: before the calibration of the instrument, you must first close the linearity correcting function. If
under the condition that the linearity correcting function has not closed, the calibration data sets arising
from the amendment must be dealing with the reverse curve of the data following the original
amendment, then input to the Instrument. Reverse amendment is very complicated, and should be
avoided.
6.24 How to save / restore frequently-used pipe parameters
You can use menu window M27 to store or restore from the internal Flash memory, as many as 9
different pipe parameter configurations.
7. Troubleshooting
7.1 Hardware self-diagnosis errors and solutions
The ultrasonic flow meter provides an automatic power-on diagnosis for the hardware problems. When
any message (while power on) in the following table displays, counter-measures should be taken.
Table 1.
Error message on LCD Causes Counter-measures
ROM Parity Error ROM operation illegal/ Error
(1)Reboot the system
(2)Contact the manufacturer
Stored Data Error RAM parameters data Error
(1)Reboot the system
(2)If problem persists, press ENT key
to restore the factory default
configuration.
System data memorizer Error System data storing Error Power ON again/ Contact with factory
Electro-circuit Hardware Error CPU electro-circuit Error Power ON again/ Contact with factory
CPU Clock Speed Error
System clock Error Power ON again/ Contact with factory
Date Time Error
Number errors with the
calendar
Re-set calendar
No Display. Erratic or
Abnormal Operation
Problem with wiring Double check wiring connections
No response to key Keypad is locked Unlock the keypad.
7.2 Working status errors and solutions
While under working status, the ultrasonic flow meter will show Error Code in the lower right corner with