H-EMF Series Battery-Powered Electromagnetic Flowmeter—Professionally manufactured by (Jiangsu Henghe Flow Instrument Co., Ltd.)—Specially designed for the water industry to ensure accurate water billing in urban water supply. It is widely used in locations without power supply, such as urban water supply, sewage treatment, water conservancy projects, and water administration and resources sectors. The H-EMF Series Battery-Powered Electromagnetic Flowmeter features a specially designed sensor excitation system and a high-performance lithium battery power supply system. It employs a 16-bit embedded ultra-low-power processor, offering full digital signal processing, stable measurement, high accuracy, and strong anti-interference capabilities. It enables automatic bidirectional flow measurement, on-site instantaneous flow display, forward and reverse cumulative total display, self-diagnostic fault alarms, and GSM data wireless remote transmission. Users can utilize the powerful GSM/GPRS remote management software system to achieve wireless remote transmission, storage, and data analysis of flowmeter data. I. New Features of Battery-Powered Electromagnetic Flowmeter: Explosion-Proof Electromagnetic Flowmeter—Provided by (Jiangsu Henghe Flow Instrument Co., Ltd.) The battery-powered electromagnetic flowmeter is specifically designed for the water industry to ensure accurate water billing in urban water supply. It is widely used in urban water supply (cold water), urban heating (hot water), sewage treatment, and water conservancy projects. It is unaffected by water quality, with no entanglement or clogging, almost no pressure loss, and can operate reliably and continuously for long periods. It is particularly suitable for large-flow heating applications. The battery-powered electromagnetic flowmeter adopts a specially designed sensor excitation system and an intelligent system, along with a 16-bit embedded ultra-low-power processor. It features full digital signal processing, stable operation, high measurement accuracy, and strong anti-interference capabilities. It enables automatic bidirectional flow measurement, on-site instantaneous flow display, forward and reverse cumulative total display, self-diagnostic fault alarms, and GSM/GPRS data wireless remote transmission. Users can utilize the powerful GSM/GPRS remote management software system to achieve wireless remote transmission and storage of flow data. It also supports automatic switching between 3.6V/12V or 220V multi-power sources. Based on precise measurement, the flowmeter integrates the instrument and control parts, enabling automatic shut-off and connection of pipelines. The intelligent electric regulating valve operates slowly when opening, avoiding excessive liquid flow velocity that could damage the instrument and preventing hazardous incidents. Valve opening requires prepayment by the user. When the user's balance is low, the system automatically sends an SMS to the user's phone, prompting them to recharge as soon as possible. When the user has no balance, the system automatically sends a command to close the valve and shut off the pipeline. After the user recharges, the valve automatically opens, reconnecting the pipeline. II. Software Features of Battery-Powered Electromagnetic Flowmeter: Corrosion-Resistant Electromagnetic Flowmeter—Manufactured by (Jiangsu Henghe Flow Instrument Co., Ltd.) ? This system allows querying, statistics, and analysis of water usage and pipeline pressure at each measurement point, displayed in charts or curves, enabling convenient management of water usage at various measurement points. ? When abnormal water usage occurs at a measurement point or the on-site flowmeter battery is low, the system can issue alarm messages. ? The system can set multiple operators at different levels, enabling hierarchical data management and data sharing within the user's local area network. ? The system incorporates more user-friendly management features, such as data backup and SIM card cost statistics. III. Main Technical Parameters of Battery-Powered Electromagnetic Flowmeter: Vibration-Resistant Electromagnetic Flowmeter—(Jiangsu Henghe Flow Instrument Co., Ltd.) Nominal Diameter: DN10-DN1200 DN150-DN6000 (insertion-type electromagnetic flowmeter optional) Nominal Pressure: 0.6–4.0 MPa (customizable for special pressures) Accuracy: ±0.2%, ±0.5% Measurement Range: 0.01–10 m/s Measured Medium (Conductivity): >20 μs/cm Medium Temperature: -10°C to 160°C Ambient Temperature: -10°C to 60°C Ambient Humidity: ≤95% (relative humidity) Power Supply: 3.6V/DC built-in lithium battery, continuous operation for 5–10 years (3.6V, 12V, 220V) Electrode Material: 316L stainless steel, HC, HB, titanium, tantalum, platinum, iridium alloy Lining Material: Neoprene rubber, polyurethane rubber, PTFE, F46, PFA Connection Method: Flange-type, insertion-type, clamp-type (optional) Structure Type: Integral type, split type (optional) Protection Rating: IP68, IP65 (optional) Display Method: LCD large screen displays instantaneous flow, flow velocity, (pressure), forward and reverse cumulative totals, and alarm indicators Output Signal: Pulse output 0.0001–10 m3/p, frequency output 1–1000 Hz arbitrarily set (passive optocoupler output) Communication Method: GSM/GPRS wireless data remote transmission (SMS-form data packets) GSM/GPRS Remote Monitoring and Management Software System: The GSM/GPRS remote monitoring and management software system is used in conjunction with the RZ-LED type battery-powered electromagnetic flowmeter with remote transmission function (see system topology diagram). This system not only enables the reception and storage of flowmeter data but also allows for the statistics and analysis of flow data, enabling users to conveniently and timely monitor water usage at various flow measurement points within the area.