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What historical data is stored in the ultrasonic water meter? How to check?
The historical data stored in the 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 st...Read more -
Why is the CL output abnormal?
Check to see if the desired current output mode is set in Window M54. Check to see if the maximum and minimum current values are set properly in Windows M55 and M56.Re-calibrate CL and verify it in Window M53.Read more -
Old pipe with heavy scale inside, no signal or poor signal detected: how can it be resolved?
Check if the pipe is full of fluid. Try the Z method for transducer installation （If the pipe is too close to a wall, or it is necessary to install the transducers on a vertical or inclined pipe with flow upwards instead of on a horizontal pipe).Carefully select a good pipe section and fully cle...Read more -
New pipe, high quality material, and all installation requirements met: why still no signal detected?
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 -
What is the Measuring principle: Time-of-flight method for UOL open channel flow meter?
The probe is mounted on the top of the flume, and ultrasonic pulse is transmitted by the probe to the surface of the monitored material. There, they are reflected back and received by the pro be. The host measures the time t between pulse transmission and reception. The host uses the time t (and ...Read more -
Hints for probe mounting ( UOL open channel flow meter )
1. The probe can be supplied as standard or with a screw nut or with an ordered flange. 2. For applications requiring chemical compatibility the probe is available fully enclosed in PTFE. 3. The use of metallic fittings or flanges is not recommended. 4. For exposed or sunny locations a protect...Read more -
Steps to the installation of the transducers of TF1100-CH flow meter
(1) Locate an optimum position where the straight pipe length is sufficient, and where pipes are in a favorable condition, e.g., newer pipes with no rust and ease of operation. (2) Clea n any dust and rust. For a better result, polishing the pipe with a sander is strongly recommended. (3) Apply a...Read more -
Whether galvanized pipe can use external ultrasonic flowmeter?
The thickness of galvanizing is different from the method of galvanizing (electroplating and hot galvanizing are the most common, as well as mechanical galvanizing and cold galvanizing), resulting in different thickness. Generally, if the pipe is galvanized externally, it only needs to polish off...Read more -
Does the conductivity measurement QSD6537 flow sensor can detect the composition of the medium ?
The QSD6537 integrates conductivity, which is a numerical representation of a solution’s ability to conduct current. Electrical conductivity is an important index to measure water quality. The change of electrical conductivity can provide valuable information about pollutants. Chemical/p...Read more -
When QSD6537 open channel flow sensor is installed,what should we pay attention to ?
1. The caculator should be installed in a place where there is little or no vibration, no corrosive objects, and the ambient temperature is -20℃-60℃. Direct sunlight and rain water should be avoided. 2. Cable connector is used for sensor wiring, power cable and output cable wiring. If not, plu...Read more -
What are the advantages of dual channel ultrasonic flow meter ?
1. Bidirectional flow measurement of fluids,such as water,oil,fuel,sea water,chilled water,beer and so on; 2. Excellent zero-point stability 3. Dual channel non-invasive transducers. 4. 0.5%R high accuracy. 5. Easy to install, cost effective, and require no pipe cutting. 6. Wide liquid temperatur...Read more -
What is the working principle for QSD6537 ?
DOF6000 serial with QSD6537 sensors area velocity open channel flow meter 1. Flow : area velocity doppler flow meter; 2. Velocity: Ultrasonic Doppler technology; 3. Level: Ultrasonic level sensor & pressure level sensor; 4. Area: with up to 20 coordinate points describing the river’s shape of...Read more
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