The electromagnetic flowmeter has a large measuring range, usually 20:1~50:1, and the optional flow range is wide; the diameter of the electromagnetic flowmeter is wider than other types of flowmeters, from a few millimeters to 3 meters; the positive and negative two-way flow can be measured. The pulsating flow rate can also be measured as long as the pulsation frequency is much lower than the excitation frequency; the meter output is linear in nature; it is easy to select the material type of the fluid contact member, and can be applied to corrosive fluids and the like. Since the electromagnetic flowmeter measures much more with suspended solids or dirt than other flow meters, the probability of failure of the inner wall adhesion layer is relatively high. If the electrical conductivity of the adhesion layer is close to the liquid conductivity, the instrument can output the signal normally, but only change the flow area to form a hidden fault of the measurement error; if it is a high conductivity adhesion layer, the electromotive force between the electrodes will be short-circuited; if it is an insulating adhesion layer The surface of the electrode is insulated to disconnect the measuring circuit. The latter two phenomena will make the meter inoperable.
Gas turbine flowmeter and screwing vortex flowmeter measurement difference
Keywords: gas turbine flowmeter, Tianxin gas turbine flowmeter, gas gas turbine flowmeter
The gas turbine flowmeter has good repeatability and is the preferred flow meter for trade settlement. The gas swirling vortex flowmeter is generally repeatable.
The gas turbine flowmeter can obtain very high frequency signals with strong signal resolution. The frequency of the gas swirling vortex flowmeter is very low, and the smaller the diameter, the lower the signal resolution. The measurement error is to be measured.
The gas turbine flowmeter has a wide range, generally 40:1~20:1, and has a wide measuring range, which can be suitable for occasions with large flow changes. When natural gas is delivered, the flow changes are generally large and, therefore, are particularly suitable for natural gas measurements. The latter range is medium, generally 15:1 to 10:1, and the measurement range is slightly narrower. When measuring gas, it is more suitable for occasions where the flow rate does not change much.
In terms of seismic performance, gas turbine flowmeters have better resistance to pipeline vibration. The gas swirling vortex flowmeter is susceptible to pipeline vibration and should be taken care of when using it.
Intelligent GPRS MAG flow meter features
☆ Timing acquisition of electromagnetic flowmeter data: The electromagnetic flowmeter is used to send a data mode to the host every hour.
The data includes:
(1) Instrument status part: module address, module name, current module time, module battery status;
(2) Meter data part: instantaneous flow rate, instantaneous flow rate, fluid conductivity ratio, positive and negative cumulative value
☆ Support short message, fixed IP and dynamic IP address transmission. Data transmission is stable and reliable, low power consumption, and low battery alarm. SMS (SMS): Support all China Unicom and China Mobile SIM
card users; GPRS mode: support for the opening of GPRS wireless Internet access (GPRS access point must be CMNET) China Mobile SIM card users
☆ GPRS communication supports two modes of TCP and UDP, and supports two connection modes of IP address and dynamic domain name.
☆ Integration of acquisition and transmission, improving system reliability and reducing costs;
☆ Do not crash, automatically restore after dropped calls;
☆ GPRS remote online setting and short message remote setting function;
☆ Onboard industrial grade GSM/GPRS communication module, convenient for users to choose GSM/GPRS networking mode
☆ Provide user setting software, open interface
☆ Good waterproof performance