LCD Intelligent Power Monitoring Sensor for Firefighting Equipment
This series of voltage/current signal sensors, featuring an integrated LCD display, utilizes a standard DIN-rail mounting design and is specifically engineered for installation within the upstream power distribution systems of various fire-fighting electrical equipment in buildings (such as fire pumps, smoke extraction fans, dual-power transfer switches, etc.). Capable of continuous, 24-hour monitoring of voltage and current parameters on power supply lines, the device responds rapidly and triggers an alarm in the event of abnormal power conditions—including overvoltage, undervoltage, phase reversal, phase loss, and overcurrent.
Description
Product Advantages
1.Real-time, Intuitive On-site LCD Display:
Features a built-in, high-contrast Liquid Crystal Display (LCD) screen with a clean interface and wide viewing angle.
2.M-BUS Non-Polarized Two-Wire Technology:
Communication and power supply require only two wires, with no distinction between positive and negative polarity. In complex construction environments involving low-voltage electrical systems, this technology significantly shortens construction cycles and completely eliminates the risk of circuit board damage caused by wiring errors, resulting in a 50% reduction in overall installation costs.
3.Intelligent Built-in Bus Short-Circuit Protection:
The hardware features an integrated, high-response mechanism for isolating and managing line short-circuit faults. Should a sudden short-circuit occur within the sensor unit itself or its connected wiring, the module automatically initiates physical self-isolation.
4.Multi-Layer Password Security and Adjustable Thresholds:
Equipped with multi-level hardware and software security locks, along with password verification protocols, to prevent unauthorized personnel from accidentally triggering operations within the power distribution cabinet. Alarm thresholds—spanning an upper limit (default: ≥ 115%) and a lower limit (default: ≤ 85%)—are fully flexible and adjustable, allowing for precise, site-specific fine-tuning based on the unique power fluctuation characteristics of each project.
5.Ultra-Fast 5-Second Alarm Response:
From the moment a power anomaly—such as a phase loss or abnormal overload—is detected to the triggering of the alarm signal, the total response time is ≤ 5 seconds.
Applications & Selection
Serving as the precision sentinels at the terminal points of fire control systems, these products are widely integrated into the terminal power distribution boxes (specifically, the main/standby power transfer units) of fire-fighting electrical equipment within major commercial complexes, hospitals, schools, and residential communities.
1.Fire Power Cabinets: Fire pump control cabinets, smoke extraction fan control units, fire elevator distribution cabinets, and fire shutter power supply boxes.
2.Fire Low-Voltage Main Cabinets: Power supplies for fire door monitoring hosts, centralized controllers for fire linkage systems, and centralized distribution boxes for emergency lighting.
Product Specifications
| Product Model | BY-2VA | BY-VA | BY-2V | BY-V |
| GB 14287-2014 |  |
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| Function | M-BUS two-wire bus power supply and communication, non-polarity connection, with short circuit protection, LCD real-time display, simple and intuitive interface, can detect overvoltage, undervoltage, phase sequence error, phase loss and other faults, and real-time display the operating voltage and current of fire fighting equipment. | |||
| Detection Function | Two channels of three-phase voltage + one channel of three-phase current | One channel of three-phase voltage + one channel of three-phase current | Two channels of three-phase voltage | One channel of three-phase voltage |
| Compatible Products | BY-F1H/BY-F2H | |||
| Operating Power Supply | DC18V-DC36V | |||
| Power | ≤40mW | |||
| Alarm Threshold | ≤85%, ≥115% | |||
| Alarm Time | 5S | |||
| Communication Bus | M-BUS | |||
| Communication Distance | ≤1000m | |||
| Installation Method | 35mm DIN rail mounting | |||
| Overall Dimensions (mm) W×H×D (Width × Height × Depth) | 82×100×66.5 | |||
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