Temperature Transmitter
温度变送器
- 介绍：
- 智能数字显示温度变送器适用于通过HART协议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，精确，超低功耗
- 产品模块使用24位Σ-Δ模数转换器（ADC），电隔离（隔离电压高达2kV），以确保发射器在干扰环境中稳定，还使用超低功耗MCU内置冷端补偿，实现信号滤波，放大和线性化
- 带背光的液晶显示器具有中文和英文操作菜单功能，使现场测量更直观，更方便
- 变送器具有测量范围宽，精度高，在工业领域直接4-20mA信号输出，因此广泛应用于石油化工，电力冶金
- 应用：
- 标准RTD和TC
- 欧姆和mV信号
- 双线4-20mA电流回路和HART
- 2，3和4线RTD输入
- 主要特点：
- 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：0-400 /0-2000Ω
- 电压：-60±60 / -120±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 | 尺寸范围 | -200〜1800℃ |
| 通讯 | uart（ast281） 哈特（ast282） | 冷端补偿 | 内置补偿 |
- Introduction:
- Smart digital display temperature transmitter which is suitable for resistance temperature detectors (RTDs), thermocouples (TCs), resistance and voltage signal input through the HART protocol configuration and that sensor input and signal output digital isolation, as well as high-resolution, high-precision, ultralow power consumption
- Product module uses 24-bit sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), electrical isolation (isolation voltage up to 2kV), to ensure the transmitter stable in interference environment, also using ultra-low power MCU with built-in cold junction compensation to achieve signal filtering, amplification and linearization
- LCD display with backlight has both Chinese and English language operation menu function which makes field measurements more intuitive and convenient
- Transmitter features wide measurement range and high accuracy, in the industrial field 4-20mA signal output directly, so widely used in the petrochemical industry, electric power and metallurgy
- Applications:
- Standard RTDs and TCs
- Ohm and mV signal
- Two wire 4-20mA current loop and HART
- 2, 3 and 4-wire RTD input
- Main features:
- 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: 0-400/0-2000Ω
- Voltage: -60 ±60/-120 ±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 | Size range | -200 to 1800°C |
| Communication | UART (AST281) HART (AST282) | Cold-junction compensation | Built-in compensation |
