Technology Solutions
Instruction Manual
Tek-Clamp 1200A-100H
www.tek-trol.com
12
4.1
Signal Strength
•
Signal strength indicates the amplitude of receiving ultrasonic signals by a 3-digit
number. [000] means there is no signal detected and [999] refers to the maximum
signal strength that can be received.
The following methods are recommended to obtain stronger signals:
•
Relocate a more favourable location, if the current location is not good enough for
a stable and reliable flow reading, or if the signal strength is lower than 700.
Try to polish the outer surface of the pipe and apply more coupler to increase the
signal strength.
•
Adjust the transducers both vertically and horizontally while checking the varying
signal strength, stop at the highest position, and then check the spacing of the
transducers to make sure the spacing of the transducers.
4.1.1
Signal Quality
Signal quality is indicated by the Q value in the instrument. A higher Q value means high
signal to noise ratio (SNR), which provide higher degree of accuracy in measurement.
Under normal pipe condition, the Q value is in the range between 600-900, the higher the
better.
Disadvantage of lower Q value is as follows:
1)
Interference of other instruments and devices such as a powerful transmitter
working nearby. Try to relocate the flow meter to a new place where the
interference can be minimum. Bad sonic coupling for the transducers with the
pipe.
2)
Apply more coupler or clean the surface, etc. Pipes are difficult to be measured.
Relocation is recommended.
