The Liquid Level Display and Alarm Box is a high-performance industrial-grade intelligent instrument dedicated to real-time liquid level monitoring, digital display and threshold alarm control. It is designed and manufactured in strict accordance with relevant national industrial instrument standards, integrating liquid level signal acquisition, data processing, high-definition digital display, multi-level alarm output and remote signal transmission functions into one compact and sturdy cabinet structure.
This instrument supports seamless connection with various mainstream liquid level sensors (such as float level gauges, pressure level transmitters, ultrasonic level sensors, radar level gauges, etc.), and can accurately convert the liquid level signals collected on site into intuitive digital display values. At the same time, it is equipped with multi-channel independent alarm setting function, which can trigger sound and light alarm and relay control output when the liquid level exceeds the preset high limit, high high limit, low limit or low low limit threshold, so as to realize automatic monitoring and safety control of the liquid level of storage tanks, reaction kettles, water tanks and other equipment.
With strong anti-interference ability, stable operation performance and simple operation interface, the Liquid Level Display and Alarm Box is Widely used in petroleum, chemical industry, water treatment, pharmaceutical, food processing, electric power, metallurgy and other industrial fields, providing reliable liquid level monitoring and safety guarantee for industrial production process.
| Technical Item | Technical Specification |
|---|---|
| Product Name | Liquid Level Display and Alarm Box |
| Input Signal Type | 4-20mA DC Analog Signal, 0-10V DC Voltage Signal, Resistance Signal, Switch Signal, RS485/Modbus RTU Digital Signal (Optional) |
| Number of Input Channels | 1 Channel, 2 Channels, 4 Channels, 8 Channels, 16 Channels (Customizable) |
| Measurement Accuracy | ±0.2%FS (Full Scale), ±0.1%FS (High Precision Optional) |
| Display Mode | High-definition LED Digital Display / LCD Touch Screen Display |
| Display Range | 0-9999 (Customizable according to the measuring range of the sensor) |
| Alarm Function | 4-level Independent Alarm for Each Channel (High High Limit, High Limit, Low Limit, Low Low Limit); Sound and Light Alarm, Relay Contact Output |
| Alarm Contact Capacity | 250VAC/5A, 30VDC/5A (Resistive Load) |
| Output Signal | 4-20mA DC Analog Output, Relay Control Output, RS485/Modbus RTU Communication Output (Optional) |
| Working Power Supply | AC220V±10% 50/60Hz; DC24V±10% (Optional) |
| Power Consumption | ≤10W (Single Channel), ≤50W (16 Channels) |
| Protection Grade | IP54 (Standard), IP65 (Waterproof and Dustproof Enhanced Type Optional) |
| Working Ambient Temperature | -10℃ ~ +55℃ |
| Storage Ambient Temperature | -20℃ ~ +70℃ |
| Relative Humidity | ≤90%RH (No Condensation) |
| Insulation Resistance | ≥100MΩ (500VDC) |
| Dielectric Strength | 1500VAC/1min (No Breakdown, No Flashover) |
| Anti-interference Performance | Comply with GB/T 17626 Industrial Electromagnetic Compatibility Standard |
| Cabinet Material | Cold-rolled Steel Plate Spraying / 304 Stainless Steel (Optional) |
| Installation Method | Wall-mounted Installation, Panel-mounted Installation, Floor-standing Installation (Optional) |
| Executive Standard | GB/T 13639-2008 Industrial Process Measurement and Control Instrument General Specification |
| Warranty Period | 18 Months |
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