LQL203 module
Product Overview
The LQL203 liquid level transmitter module is a high-cost-performance product launched by Shanghai Luoqian, designed for resistance signal transmission of magnetoresistive sensors. This product uses a 24-bit Σ-Δ analog front-end to ensure high measurement accuracy; comprehensive surge protection and reverse polarity protection prevent misinstallation and mishandling in engineering applications. Enhanced software safety design includes low-voltage monitoring reset, multi-task scheduling optimization, and other features. The LQL203 uses industrial-grade components throughout to ensure long service life and stability. To facilitate long-term stockpiling for major customers, configuration can be performed using a USB communication cable without the need for an external power supply.
Key Features
- Supports input from multiple types of temperature sensors
- 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 | Two-wire 4~20mA | |
| Measurement Accuracy | 0.2% | Output Current Limiting | 20.8mA | |
| Excitation Current | 0.2mA | Sensor | Magnetoresistive Sensor | |
| Load | ≤500Ω | Transport and Storage Temperature | -40~120℃ | |
| Temperature Coefficient | ≤25ppm/℃ F.S | Housing Material | PA66 | |
| Operating Temperature | -30~80℃ | Mounting Screws | M4*2 |
