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How to resolve the low or no value of S or Q for transit-time insertion & clamp-on flow mete...
1. Check if the on-site environment meet some special requests as below. 1). Long enough straight pipe length ; 2) The medium can be measured by our meters and must be full water pipe ; 3) Less air bubbles and solids in measured fluids of pipe . 2. Check the pipeline parameter is right, whether t...Read more -
What are the four parameters of industry ? How do you measure it ?
The four industrial parameters are temperature, pressure, flow rate and liquid level. 1. Temperature Temperature is a physical value that represents the degree of cold and heat of the measured object. According to the measurement method of temperature instrument, it can be divided into contact...Read more -
What points should be paid attention to during the installation of high temperature medium ?
The upper limit of high temperature is 250℃ measured by the clamp sensor and 160℃ measured by the insertion sensor. During sensor installation, note the following: 1) Wear high temperature protective gloves and do not touch the pipe; 2) Use high temperature couplant ; 3) The sensor cable ...Read more -
The advantages and disadvantages of transit time ultrasonic flow meter among portable, hand-held ...
1) Measurement characteristics The measurement performance is better for portable and handheld flow meter. This is because their power are battery operated,and fixed meter is adopted by AC or DC power supply, even if the DC power supply, generally from AC conversion. AC power supply has a certain...Read more -
What points should be paid attention to when comparing transit-time ultrasonic flowmeter with ele...
1) Electromagnetic flowmeter need straight pipe that is shorter than ultrasonic flowmeter’s. Electromagnetic flowmeter installation site may no longer straight pipe, so compare at the scene, pay attention to the position of measuring whether can meet the requirements of straight pipe ultrasonic f...Read more -
What historical data is stored in ultrasonic water meter ? How to check ?
The historical data stored in ultrasonic water meter includes the hourly positive and negative accumulations for the last 7 days, the daily positive and negative accumulations for the last 2 months, and the monthly positive and negative accumulations for the last 32 months. These data are stored...Read more -
Why are temperature and flow transducers installed in pairs, and what is the impact?
When you use temperature and flow transducers,it is usually used in pairs. The reasons as below. For flow transducers,it can decrease the deviation of static zero; For temperature transducers,it can reduce the deviation of temperature measurement. (by using two sensors with the same error value )...Read more -
How does the transit-time ultrasonic flowmeter measure certain chemical medium ?
When our flow meter measure this chemical liquid,it is necessary to input the sound velocity of this liquid by manual,due to the transmitter of our meter is no option of certain chemical fluids. In general, it is difficult to obtain the sound velocity of special chemical media. In this case,it ne...Read more -
What is the difference between two-wire and three-wire ultrasonic level meter ?
For Two-wire ultrasonic level meter, its power supply (24VDC) and signal output ( 4-20mA ) share a loop, only two lines can be used, this is the standard transmitter form, the deficiency is that the transmission power is relatively slightly weak. Three-wire ultrasonic level meter is actually fo...Read more -
Why does Lanry flow meter show low signal value?
1. Check the pipe is full or not full water pipe,if empty or partially filled pipe,flow meter will display a bad signal; ( For TF1100 and DF61serial transit time flow meter ) 2. Check the pipe measured if it is used enough coupling paste when mounting the sensors,if air is between the sensor surf...Read more -
What factors result in bad flow measurement for our transit time ultrasonic flow meter ?
1. Old pipe and server scaling for pipeline. 2. The pipe material is pyknotic and symmetrical,and other materials that is bad acoustical conductivity; 3. The surface of pipe wall have coating like paint; 4. The application is not full water pipe; 5. The inner of pipe is with a lot of air bubbles ...Read more -
What is the accuracy of Lanry flow meters ?
For volumetric flow measurement, The accuracy of transit time ultrasonic liquid flow meter is up to 1%. ( Full filled pipe in pure water and little dirty water ) The accuracy of clamp-on dual channels transit-time ultrasonic liquid flow meter is up to 0.5%. (Full filled pipe in pure water and lit...Read more
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