LQT3051H HART Board
Product Overview
The LQT3051H is a high-precision, high-stability HART temperature transmitter that integrates most standard HART protocol commands and some custom commands. It is suitable for signal transmission of up to ten types of thermocouples and RTDs. The product uses an independent 24-bit Σ-Δ analog sampling chip to ensure high measurement accuracy; comprehensive surge and reverse polarity protection prevent improper installation and operation in engineering applications; enhanced software security design, including an independent watchdog, low-voltage monitoring reset, and multitasking scheduling optimization. All components are industrial-grade, ensuring long service life and stability. To facilitate long-term stock preparation for large customers, configuration can be performed using buttons and HART communication line devices.
Key Features
- Supports input from multiple types of temperature sensors
- High-precision 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 | 12~35VDC | Output | 4~20mA | |
| Measurement Accuracy | RTD 0.2%; TC 0.5% | Output Current Limit | 20.8mA | |
| Excitation Current | 210μA | Sensor | Various RTDs and Thermocouples | |
| Load | ≤500Ω | Transport & Storage Temperature | -40~120℃ | |
| Temperature Coefficient | ≤25ppm/℃ F.S | Housing Material | ABS | |
| Operating Temperature | -30~80℃ | Mounting Screws | M3*2 |
