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1. Qingtian Instrument teaches you how to solve the problem of measuring media that cannot reach the non full tube electromagnetic flowmeter?
2. What type of flowmeter is suitable for measuring groundwater flow?
When measuring groundwater flow, the appropriate model should be selected based on the measurement scenario (full pipe underground pipeline/non full pipe underground culvert, etc.), accuracy requirements, and medium characteristics. The mainstream available models are as follows.
1. Applicable Type Return Indicator for Full Underground Water Pipeline Scenarios 1 PK-LDE electromagnetic flowmeter: with a diameter range of 15-2600, the electrode material can be selected from various materials such as 316L, titanium, tantalum, etc. The inner lining material includes polytetrafluoroethylene, polyurethane bending ester rubber, etc. It supports precision levels such as 0.3, 0.5, and 1, and can choose from integrated, split, and explosion-proof integrated structures, suitable for flow measurement of most conventional underground water pipelines. KM-LDE electromagnetic flowmeter: with a diameter range of 15-2600, it supports integrated and split installation, and the converter can be circular or square. The medium temperature coverage is ≤ 65 ℃, ≤ 120 ℃, ≤ 180 ℃ (exclusive for split type), and it has a full Chinese menu operation. It supports multiple signal outputs such as 4-20mA and RS485, and is suitable for... Temperature and installation requirements for different underground working conditions
3. JKM-LDE Type electromagnetic flowmeter: with a caliber range of 15-2600, a leakage alarm range ratio of 150:1, a repeatability error of ± 0.1% of the measured value, and accuracy levels cove
II. Suitable model for non full pipe underground culverts/small underground streams SGDOF6000-P ultrasonic Doppler flowmeter: composed of sensors and portable integrators, it measures flow velocity through the principle of ultrasonic Doppler and calculates flow rate by combining pressure sensors to measure water level. It can work continuously for more than 40 hours under full power, and can simultaneously measure forward/reverse flow, velocity, temperature and liquid level. It supports programmable adaptation to any shape of non full pipe pipelines, with 4-20mA, RS485/MODBUS and other interface outputs. It can be optionally equipped with GPRS and SD card massive storage functions, and is suitable for non full pipe underground water flow measurement in underground culverts, small underground streams and other non full pipes.
.3. What is the relationship between the diameter of the electromagnetic flowmeter and whether the flow rate is full or not?
The prerequisite for the diameter of the electromagnetic flowmeter and the flow rate must be full in order to be valid.
. According to the different types of external magnetic fields, there are mainly two types of electromagnetic flow meters: DC type and induction type. The external constant lower magnetic field B of the DC electromagnetic flowmeter (Figure 2) is perpendicular to the pipe axis, and two electrodes are installed at positions C and D to measure the induced electromotive force U when the fluid crosses the magnetic field. The flow rate Q can be calculated using the following equation: where A is the cross-sectional are
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