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Shanghai Automation Instrumentation Co., Ltd.
Address:No.191 Guangzhong Road (West) Shanghai
Tel:86-21-59189606
Fax:86-21-60917975
Website:www.sc-saic.com/english
E-mail: tom.saic@gmail.com

Common Failures and Approach of Ultrasonic level meter
Release time:2016-09-27   Clicks:894

Ultrasonic level meter is a commonly used level measurement instruments, products with stable performance, flexible, high reliability, suitable for all kinds of corrosive chemical applications. Ultrasonic level meter course will have a certain failure, today we have to introduce specific ultrasonic level meter Common Failures and in the hope of help to you.

1. In the ultrasonic continuous zero level, the top of the lights, the output current of 22mA. And from time to time after the recovery level, the fault can not be automatically lifted, normal, cause unnecessary trouble to the customer need to power off or reboot loss.

This failure is mounting accessory choice. Since the ultrasonic level meter is launching the world's first zero degrees, the advantages of the above is also introduced. It is another distinctive feature is that in addition to the ultrasonic transmitter flat head, the thread here is also emitted. If we continue to zero, plus use metal mounting bracket. Ultrasonic level meter will recognize the signal strength of the bracket part is greater than the flat head received signal strength. And in the distance between the blind and partially transmitted wave metal stents. So ultrasound is protected, fault lights lit, the output of 22mA. The solution is the choice of non-metal stents. Because the choice of non-metal stents, the emission wavelength of the thread can penetrate out, and the absolute zero level of the echo signal will be greater than the echo signal at the thread.

2. After debugging and reprogramming the top of the fault lights lit, output current of 22mA. When this fault condition, the actual verification, or in the process of programming and debugging, failure to follow the requirements of the specification. Disorder caused by a program of self-protection status. Customer programming ultrasonic level debugging time, could not wait for the normal flashing lights, or the programming method simply wrong step, in an unstable programming and debugging. If Failing repeatedly requested programming and debugging, ultrasonic level meter will refuse to work and to protect themselves. This failure is the first solution appears ultrasonic level meter is reset as required, and then reprogrammed. If you repeatedly re-programming in the case is not reset, there will be more failures.
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