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New pipe, high quality material, and all installation requirements met: why still no signal detec...
Pls check pipe parameter settings, installation method and wiring connections. Confirm if the coupling compound is applied adequately, the pipe is full of liquid, transducer spacing agrees with the screen readings and the transducers are installed in the right direction.Read more -
Method of Estimating Sound Speed of a Certain Fluid
Sound speed of measured fluid is required when using TF1100 series transit-time ultrasonic flow meters. This instruction is used to estimate the sound speed of a certain fluid that the meter system doesn’t tell its sound speed and you have to estimate it. Pls follow the steps bellow for TF1100 s...Read more -
How to Get Signal for Transit- time Flowmeter When No Pipeline
When user is in no pipeline environment and wants to test our Transit- time Flowmeter, user can operate as follow steps: 1. Connect transducers to transmitter. 2. Menu Setup Note: No matter what kind of transducer customers bought, the menu setup of transmitter fol...Read more -
What are the advantages of Ultrasonic water meter in comparison with Mechanical water meter?
A. Structure comparison, ultrasonic water meter without clogging. Ultrasonic water meter DN15 – DN300, reflect hydrodynamic structure, no installation requirements of straight pipe. Mechanical water...Read more -
How to avoid lightning strikes during the use of our instruments?
Do a good job in the grounding of the host and the sensor: the host is grounded: the host shell is grounded and connected to the earth. Sensor grounding: The insertion sensor can be connected to the pipeline and some facilities that can be grounded with a insertion stainless steel housing.Read more -
Why the clamp-on ultrasonic flowmeter sensor may not be used well in occasions where IP68 is requ...
When the external clamp sensor is installed, the coupling agent is used to couple the sensor and the pipe, but when working in an IP68 environment, the sensor and couplant are both immersed in water, and the couplant works in water for a long time, which affects the measurement effect of the exte...Read more -
Why does the industry use 4-20mA signals instead of 0-20mA signals?
The most widely used standard analog electrical signal in the industry is to use 4-20mA DC current to transmit the analog. The reason for using the current signal is that it is not easy to be interfered, and the internal resistance of the current source is infinite, and the resistance of the wire...Read more -
What is requirement for straight pipe length when installing a transit-time or Doppler flowmeter?
Ultrasonic flow meters require fully developed flow conditions to ensure the meter will perform as specified. There are two basic types of measuring principles, Doppler and Transit Time. Both do require adhering to basic installation guidelines to minimize errors caused ...Read more -
What is Q1, Q2, Q3, Q4 and R for ultrasonic water meter
Q1 Minimum flow rate Q2 Transitional flow rate Q3 Permanent flow rate (working flow) Q4 Overload flow rate Make sure that the maximum flow that will pass through the meter never exceeds Q3. Most water meters have a minimum flow (Q1), below which they cannot provide an accurate reading. If ...Read more -
What issues should be paid attention to during the installation of high-temperature media?
The external clamp sensor measures the upper limit of high temperature 250℃, and the plug-in sensor measures the upper limit of 160℃. During the installation of the sensor, please pay attention to: 1) Wear high-temperature protective gloves and do not touch the pipe with your hands; 2) Use high t...Read more -
How does the time difference ultrasonic flowmeter measure special chemical media?
When measuring special chemical media, since there is no option for special chemical fluid types in the host, it is necessary to manually input the sound velocity of the special chemical medium. However, it is generally difficult to obtain the sound velocity of the special chemical medium. In thi...Read more -
How to choose a suitable location of partially filled pipe?
A typical installation is in a pipe or culvert with diameters between 150mm and 2000 mm. The Ultraflow QSD 6537 should be located near the downstream end of a straight and clean culvert, where non-turbulent flow conditions are maximised. The mounting should ensure the un...Read more
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