Scale Conversion of Remote Transmission Float Flow Meter

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1. Usage of Wireless Remote Flow Meter

The core of the usage of wireless remote flow meter lies in four steps: correct installation, parameter setting, data acquisition, and system maintenance Equipment installation and wiring - Sensor installation: Select the appropriate installation position according to the pipeline medium (liquid/gas/steam) to ensure a full pipeline state. For liquid media, it is recommended to install horizontally or obliquely, and for gas media, vertical installation is recommended. - Electrical connection: Strictly follow the nameplate markings for power input wiring (usually 24VDC or 220VAC), pay attention to polarity to prevent module burnout. - Antenna installation: External antennas should be kept at least 1 meter away from metal pipelines and maintain a vertical orientation; Built in antenna device avoids rough land excavation and metal enclosed environment 2 Communication parameter configuration can be set through local buttons or infrared debugger: - Operator selection: Mobile/Unicom/Telecom SIM card (requires IoT service) - APN settings: Mobile card set to CMIOT, Unicom card set to UNIM2M.NJM2MAPN - Communication protocol: standard support MODBUS RTU/TCP, HTTP/MQTT protocol - Reporting interval: set different frequencies from 1 minute to 24 hours according to requirements (affecting battery life) 3 Flow parameter calibration - Instrument coefficient input: Enter K coefficient (pulse type) or correction coefficient (analog type) according to the verification certificate - Range setting: Set 4-20mA corresponding flow range through HART protocol or manual controller - Temperature and pressure compensation: Steam/gas flow needs to be connected to PT100 temperature sensor and pressur

e variable rock core transmitter signal 4 Data platform docking - Cloud platform registration: Create a device on the operators cloud platform (such as China Mobile OneNET, Telecom IoT platform) - ID binding: Enter the device IMEI number (body barcode) and SIM card number to complete the binding - Data mapping: Configure register address correspondence (such as 0000H register often stores instantaneous traffic value) 5 Daily maintenance points - Battery life: The lithium battery powered model can last for about 3 years at a reporting frequency of 1 minute - Signal inspection: The signal strength is judged by the LED indicator light (the green light is always on, indicating normal communication) - Regular verification: Online comparison is carried out every 12 months, and actual current calibration is implemented 24 months. Note: Please refer to the equipment manual for specific operations. There is a risk of electric shock when opening the cover with power on, and non professionals are prohibited from operating the electrical connection part.

2. How to open the valve of a gas remote flowmeter

There are three main ways to close the valve of a gas remote flowmeter: remote control, local manual operation, and IC card control.

. 1. The gas company remotely controls the valve opening by sending valve opening instructions to the flow meter through wireless networks such as GPRS or LoRa through the backend management system. This is mainly used for users to restore gas supply after paying fees, or for unified remote management. 2. Local manual valve opening requires opening the equipment protective cover and using tools (such as screwdrivers) to operate internal buttons or knobs to open the valve. This method

Scale Conversion of Remote Transmission Float Flow Meter

1. Usage of Wireless Remote Flow Meter

2. How to open the valve of a gas remote flowmeter

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