Temperature Transmitter
温度变送器
介绍：
AST282系列温度变送器适用于通过PC配置的电阻温度检测器（RTD），热电偶（TC），电阻和电压信号输入，以及传感器输入和信号输出数字隔离以及高分辨率，高精度，超低功耗
产品模块使用24位Σ-Δ模数转换器（ADC），数字隔离（隔离电压高达2kV），以确保发射器在干扰环境中也稳定，同时使用超低功率MCU内置冷端补偿，实现信号滤波，放大和线性化
该变送器具有测量范围宽，精度高，采用硅橡胶或环氧树脂密封结构，具有良好的抗冲击，抗潮湿，抗干扰性能，适用于恶劣的工业环境
应用：
AST282系列温度变送器适用于通过PC配置的电阻温度检测器（RTD），热电偶（TC），电阻和电压信号输入，以及传感器输入和信号输出数字隔离以及高分辨率，高精度，超低功耗
产品模块使用24位Σ-Δ模数转换器（ADC），数字隔离（隔离电压高达2kV），以确保发射器在干扰环境中也稳定，同时使用超低功率MCU内置冷端补偿，实现信号滤波，放大和线性化
该变送器具有测量范围宽，精度高，采用硅橡胶或环氧树脂密封结构，具有良好的抗冲击，抗潮湿，抗干扰性能，适用于恶劣的工业环境
应用：
- 标准RTD，TC
- 欧姆和mV信号
- 2-，3-和4线RTD输入
- 电子隔离
- HART通信，易于配置和校准
- 抗工业频率干扰
- 内置冷端补偿
- 支持多个温度传感器输入
- RTD型：Pt100 / Pt500 / Pt1000 / Cu50 / Cu100
- tc类型：b / e / j / k / n / r / s / t
- 电阻：0-400Ω/0-2000Ω
- 电压：-60mV- + 60mV / -120mV- + 120mV
- 非标准热电偶的一部分可以定制
| 电源 | 24V DC（正常范围：14-45V） | 尺寸精度 | ±0.2℃（pt100） ±0.5°C（TC类型E） |
| 输入 | 标准RTD，TC，欧姆和mV信号 | 湿度范围 | 10-95％rh （无冷凝） |
| 输出信号 | 4-20ma直流 | 温度范围 | -25至70℃ |
| 传输模式 | 两线 | 测量范围 | -200〜1800℃ |
| 通讯 | 哈特（ast282） | 冷端补偿 | 内置补偿 |
Introduction:
The AST282 family of temperature transmitter is suitable for Resistance Temperature Detectors (RTDs), thermocouples(TCs), resistance and voltage signal input through PC configuration, and that sensor input and signal output digital isolation, as well as high-resolution, high-precision, ultra-low power consumption
The product module uses 24-bit sigma-delta(Σ-Δ)analog-to-digital converters(ADCs), digital isolation (isolation voltage up to 2kV), to ensure the transmitter is stable in interference environment also using ultra-low power MCU with built-in cold junction compensation, to achieve signal filtering, amplification and linearization
The transmitter features wide measurement range and high accuracy, with silicone-rubber, or epoxy resin sealing structure, so it has good performance of shock resistance, resistance to wet, and anti-interference, which is suitable for bad industrial environment
Applications:
The AST282 family of temperature transmitter is suitable for Resistance Temperature Detectors (RTDs), thermocouples(TCs), resistance and voltage signal input through PC configuration, and that sensor input and signal output digital isolation, as well as high-resolution, high-precision, ultra-low power consumption
The product module uses 24-bit sigma-delta(Σ-Δ)analog-to-digital converters(ADCs), digital isolation (isolation voltage up to 2kV), to ensure the transmitter is stable in interference environment also using ultra-low power MCU with built-in cold junction compensation, to achieve signal filtering, amplification and linearization
The transmitter features wide measurement range and high accuracy, with silicone-rubber, or epoxy resin sealing structure, so it has good performance of shock resistance, resistance to wet, and anti-interference, which is suitable for bad industrial environment
Applications:
- Standard RTDs, TCs
- Ohm and mV signal
- 2-, 3-, and 4-Wire RTD input
- Electronic isolation
- HART communication, easy for configuration and calibration
- Resistance to industrial frequency interference
- Built-in cold junction compensation
- Support for multiple temperature sensor input
- RTD type: Pt100/Pt500/Pt1000/Cu50/Cu100
- TC type: B/E/J/K/N/R/S/T
- Resistance: 0-400Ω/0-2000Ω
- Voltage: -60mV - +60mV/-120mV - +120mV
- Part of non-standard thermocouples can be customized
| Power Supply | 24V DC (Normal Range: 14-45V) | Size Accuracy | ±0.2°C (Pt100) ±0.5°C (TC type E) |
| Input | Standard RTDs, TCs, ohm and mV Signal | Humidity Range | 10-95% RH (No condensation) |
| Output Signal | 4-20mA DC | Temperature Range | -25 to 70°C |
| Transmittal Mode | Two Wire | Measure Range | -200 to 1800°C |
| Communication | HART(AST282) | Cold-junction Compensation | Built-in Compensation |
