描述
福克斯波罗FBM202是Foxboro I/A Series系统的一款8通道隔离型热电偶输入模块。
以下是其详细信息：
基本参数
输入类型：支持J、K、T、E、C、R、S、B、N等多种类型热电偶及-500至+500mV的毫伏信号。
精度：±0.1%读数。
分辨率：热电偶为0.1℃，毫伏为0.1mV。
输入阻抗：大于10MΩ。
共模抑制比：在60Hz时大于100dB。
电源要求：24VDC，150mA。
工作温度：-40℃至80℃。
湿度：0至95%RH，非冷凝。
尺寸：160x110x38mm（6.3×4.3×1.5英寸）。
重量：约0.45kg（1磅）。
功能特点
通道隔离：8个输入通道相互隔离，且与接地隔离，有效防止信号干扰。
参考结补偿：包含一个隔离的RTD参考结补偿通道，用于端子温度感测，确保测量准确性。
线性化处理：对常见热电偶类型进行线性化处理，可直接输出线性化后的温度值。
故障检测：具备热电偶烧坏检测、冷端检测等功能，可实时监测输入信号状态，并提供故障诊断信息。
数据转换：采用SigmaDelta数据转换技术，每通道每25毫秒提供新的模拟输入读数，并可配置积分周期以消除过程噪声和电源频率干扰。
The Foxboro FBM202 is an 8-channel isolated thermocouple input module for the Foxboro I/A Series system.
Below are its details:
Basic Parameters
Input Type:Supports various thermocouple types,including J,K,T,E,C,R,S,B,and N,as well as millivolt signals from-500 to+500mV.
Accuracy:±0.1%of reading.
Resolution:0.1°C for thermocouples and 0.1mV for millivolts.
Input Impedance:Greater than 10MΩ.
Common Mode Rejection Ratio:Greater than 100dB at 60Hz.
Power Requirements:24VDC,150mA.
Operating Temperature:-40°C to 80°C.
Humidity:0 to 95%RH,non-condensing.
Dimensions:160x110x38mm(6.3×4.3×1.5 inches).
Weight:Approximately 0.45kg(1 lb).
Features
Channel Isolation:The eight input channels are isolated from each other and from ground,effectively preventing signal interference.
Reference Junction Compensation:Includes an isolated RTD reference junction compensation channel for terminal temperature sensing,ensuring measurement accuracy.
Linearization:Provides linearization for common thermocouple types and directly outputs the linearized temperature value.
Fault Detection:Features such as thermocouple burnout detection and cold junction detection monitor input signal status in real time and provide fault diagnostic information.
Data Conversion:Utilizing SigmaDelta data conversion technology,each channel provides a new analog input reading every 25 milliseconds,with a configurable integration period to eliminate process noise and power supply frequency interference.
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