LQT2485M RS485 type board
Product Overview
The LQT2485M integrated temperature transmitter features a five-digit LCD display and is compatible with signal transmission from up to ten different types of thermocouples and RTDs. The LQT2485M employs comprehensive electrical isolation to reduce damage and interference from high-current signals on the RS485 bus. This product utilizes a 24-bit Σ-Δ analog front end to ensure high measurement accuracy; robust surge, lightning, and reverse polarity protection prevent improper installation and operation in engineering applications; enhanced software safety design includes low-voltage monitoring reset and multi-task scheduling optimization. The LQT2485M uses all industrial-grade components to ensure long service life and stability.
Key Features
- Supports multiple types of temperature sensor inputs
- 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 | RS485/Modbus | |
| Measurement Accuracy | RTD 0.1%; TC 0.2% | Output Current Limiting | 20mA | |
| Excitation Current | 0.2mA | Sensor | Various RTDs and Thermocouples | |
| Load | 250Ω or 500Ω | Transport & Storage Temperature | -40~120℃ | |
| Temperature Coefficient | ≤50ppm/℃ F.S | Housing Material | PA66 | |
| Operating Temperature | -30~80℃ | Mounting Screw | M4*2 |
