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1. How to adjust the display history data of a flowmeter
The method of adjusting the display history data of a flowmeter varies depending on the type, and the core is achieved through mechanical adjustment or electronic menu settings. 1. Mechanical flow meters usually come with counters, and some models can be manually adjusted directly. First, find the adjustment knob or dial of the counter, which is usually located outside the flowmeter. Adjust the number to the desired historical data by rotating the knob or turning the dial. Manual adjustment requires careful operation to avoid damaging the counter, and calibration must be performed after adjustment to ensure accurate data
2. Intelligent electronic flowmeter 2.1 button operation adjustment. On the flowmeter operation panel, press the "Set Tanlu Calendar" button to enter the menu, find "History Data" or similar options, use the directional keys to modify the values, and press the "Confirm" button to save. The menu options for different brands and models may vary, please refer to the product manual for operation
2.2 Communication interface connection adjustment Use a dedicated communication cable to connect the flowmeter to a computer or other external device, and install the corresponding configuration software. After opening the software and establishing a Tonghuapaixun connection, find the process data setting option in the interface, enter the values that need to be adjusted, and click the "Send" or "Save" button to transfer the new data. Before operation, it is necessary to back up the original settings and ensure that the communication connection is normal and the software version is compatible. If the above methods cannot solve the problem
2. Specifications and models of flow meters
Common specifications and models of different types of flow meters are summarized as follows
1. Vortex flow meters cover different media and flow scenarios, including FS series for industrial gas measurement and micro vortex flow meters for small flow detection
Liquid, with specifications ranging from DN1mm to several meter caliber
4. Mass flow meters, taking the HH series as an example, are divided according to the nominal diameter of the pipeline DN
6、DN
10、DN1
5、DN2
5、DN40、DN50、DN80、DN100（ Unit: mm) There are a total of 8 specifications for physical flow meters. Taking EXAIRs 9090 model as an example, it is compatible with 1/2 "to 8" Schedule 40 iron pipes and 25mm to 101mm aluminum pipes, and can support up to 4 "copper pipe air flow measurement. • Vortex/Swirl Vortex Flowmeters: including the conventional DN20-DN200 Swirl Vortex Flowmeters from Astra Instruments and the LUGB series from Chongqing Chuanyi. Ultrasonic flow meters: such as Emerson FLUXUS G721 CA clamp type, Astra ATLS clamp type, and other models.
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.
.1. Applicable Type Return Indicator for Full Underground Water Pipeline Scenarios 1 PK-LDE electromagnetic flowmeter: with