Interpretation of the latest version of the calibration regulations for electromagnetic flow meters in Hebei | jjg1033-2025

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What is the password for the Coreda electromagnetic flowmeter?

0251. There are many types of passwords for the Koreida electromagnetic flowmeter, including the first level password Tanru 0521, which can only be viewed and cannot be changed, the second level password 5864, which can be changed to a regular password, and the top-level password 19818, which is unique to the manufacturer and cannot be changed. Hebei Keruida Instrument Technology Co., Ltd. was established in 2006 with a registered capital of 46.2 million yuan. It is a listed company on the New Third Board and specializes in electrochemical analysis instruments, transmitters, and system integration based on electrochemical parameter instruments.

2. Doppler flowmeter manufacturer

3. 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.

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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:

Hebei 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 covering pipeline 0.5 and 1.0, suitable for underground pipeline flow scenarios with high measurement accuracy requirements.

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.

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4. Interpretation of the latest version of JJG1033-2025 Electromagnetic Flow Meter Calibration Regulations

JJG1033-2025 is the current lat

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