temperature transmitter circuit
LQT3051 segment LCD board
LQT3051
Product Overview
The LQT3051 smart temperature transmitter utilizes a high-definition FSTN segment LCD and is compatible with up to ten types of thermocouple and RTD signal inputs. It features a 24-bit Σ-Δ analog front-end to ensure high measurement accuracy. Enhanced surge, lightning, and reverse polarity protection prevent improper installation and operation in engineering applications. Advanced software safety design includes low-voltage monitoring reset and multi-task scheduling optimization. The LQT3051 uses all industrial-grade components to ensure long service life and stability.
Key Features
- Supports multiple types of temperature sensor inputs
- High-precision measurement with accuracy up to 0.2%
- Excellent temperature stability
- 4-20mA standard current output
- Wide operating voltage range
Technical Specifications
| Parameter | Specification | Parameter | Specification | |
|---|---|---|---|---|
| Operating Power Supply | 12~35 VDC | Output | 4~20 mA | |
| Measurement Accuracy | RTD 0.2%; TC 0.5% | Output Current Limit | 20.8 mA | |
| Excitation Current | 0.2 mA | Sensor | Various RTDs and Thermocouples | |
| Load | 250 Ω or 500 Ω | Transport and Storage Temperature | -40~120 ℃ | |
| Temperature Coefficient | ≤25 ppm/℃ F.S | Housing Material | ABS | |
| Operating Temperature | -30~80 ℃ | Mounting Screws | M3*2 |
