level transmitter circuit
LQL3051 Segment LCD Board
LQL3051
Product Overview
The LQL3051 intelligent liquid level transmitter uses an FSTN high-definition segment LCD, suitable for resistance-type liquid level sensors such as magnetic flap type and float type. The LQL3051 features a 24-bit Σ-Δ analog front end, providing both anti-interference and high-precision characteristics. It is designed with comprehensive surge protection, lightning protection, and reverse polarity protection to avoid improper installation and operation in engineering applications. Enhanced software safety design includes functions such as low-voltage monitoring reset and multi-task scheduling optimization. All components used in the LQL3051 are industrial-grade, ensuring long service life and stability.
Key Features
- Supports multiple types of temperature sensor inputs
- High accuracy measurement, accuracy up to 0.1%
- Excellent temperature stability
- 4-20mA standard current output
- Wide operating voltage range
Technical Specifications
| Parameter | Specification | Parameter | Specification | |
|---|---|---|---|---|
| Operating Power Supply | 12~35VDC | Output | 4~20mA | |
| Measurement Accuracy | 0.1% F.S. | Output Current Limit | 20.8mA | |
| Excitation Current | 0.2±0.01mA | Sensor | Magnetic Level Gauge, Float | |
| Load | 250Ω or 500Ω | Transport and Storage Temperature | -40~120℃ | |
| Temperature Coefficient | ≤25ppm/℃ F.S. | Housing Material | PA66 | |
| Operating Temperature | -30~80℃ | Mounting Screws | M4*2 |
