特点                  · 用HART协议进行设置,用于多种输入信号                  · 二线制技术                  · 4~20mA模拟输出 ;                  · 背光显示,可旋转                  · 在整个环境温度范围内保持高精度;                  · 可预设传感器损坏或短路故障信号,符合NAMUR NE 43                  · EMC符合NAMURNE21,CE;                  · UL认证的组件符合UL3111-1;                  · Ex-证书:                       ATEX Ex ia                       FM IS                       CSA IS                  · GL船级认证                  · 电气隔离                  · 输出模拟                  · 用户指定的线性化                  · 线性化曲线匹配                  · 通过配置接头在测量过程中在线配置                  · 用户指定的测量范围设置或扩展设置                  · Min/max测量值记录功能                  应用                  · 带有HART协议DIN导轨式温度变送器,用于将多种输入信号转换成4~20mA模拟输出信号;                  · 输入:热电阻(RTD)、热电偶(TC)、电阻(Ω)和电压(mV)                  · 用手操器(DXR275、DXR375)或计算机(如ReadWin2000或FieldCare)通过HART协议操作设备                  操作和系统结构                  DIN导轨式iTEMP HART                  TM122温度变送器是二线制变送器，具有模拟量输出。可用于测量2-,3-或4-线制热电阻(RTD)、热电偶和电压变送,                  TMT122可以通过手操器(DXR275、DXR375)或计算机(如ReadWin2000或FieldCare)通过HART协议操作设备。                  输入值                        测量值温度(温度线性化)、电阻和电压                        测量范围热电阻                                (RTD)类型测量范围最小测量范围                                Pt100                                Pt500                                Pt1000                                符合IEC 751-200...850℃(-328...1562°F)                                -200...250℃(-328...482°F)                                -200...250℃(-328...482°F)10 K                                10 K                                10 K                                Ni100                                Ni500                                Ni1000                                符合DIN 43760-60~180℃ (-76~356°F )                                -60~150℃ (-76~302°F )                                -60~150℃ (-76~302°F )10 K                                10 K                                10 K                                · 连接类型:2-,3-或4-线制连接                                · 在2线制系统中可以对电缆电阻进行软件补偿(0~20Ω)                                · 传感器电缆电阻每根最大40Ω                                · 传感器电流≤0.6mA                                电阻变送电阻Ω10~400Ω                                10~2000Ω10Ω                                100Ω                                热电偶                                (TC)B (PtRh30-PtRh6)                                C (W5Re-W26Re)                                D (W3Re-W25Re)                                E (NiCr-CuNi)                                J (Fe-CuNi)                                K (NiCr-Ni)                                L (Fe-CuNi)                                N (NiCrSi-NiSi)                                R (PtRh13-Pt)                                S (PtRh10-Pt)                                T (Cu-CuNi)                                U (Cu-CuNi)II                                符合IEC 584 第1部分 0~+1820℃ (32~3308°F )                                0~+2320℃ (32~4208°F )                                0~+2495℃ (32~4523°F )                                -200~+ 915℃ (-328~1679°F )                                -200~+1200℃ (-328~2192°F )                                -200~+1372℃ (-328~2501°F )                                -200~+900℃ (-328~1652°F )                                -270~+1300℃ (-454~2372°F )                                0~+1768℃ (32~3214°F )                                0~+1768 ℃(32~3214°F )                                -200~+400 ℃(-328~752 °F)                                -200~+600℃ (-328~1112°F )500 K                                500 K                                500 K                                50 K                                50 K                                50 K                                50 K                                50 K                                500 K                                500 K                                50 K                                50 K                                · 冷端内部(Pt100)或外部(0~80℃)                                · 冷端精度:±1K                                电压变送毫伏变送器-10~100 mV5 mV                   输出值                  · 输出信号：模拟量4～20 mA，20～4 mA                  · 传输特性：温度线性                  · 报警信号：低于测量范围输出降至3.8 mA                                        高于测量范围输出至20.5 mA                                        传感器损坏；传感器短路≤3.6mA或≥21.0 mA                  · 负载：max.(V电源 -12V)/0.022A(电流输出)                  · 输入电流：≤3.5mA                  · 限流：≤23mA                  · 开关延迟：4s(上电过程中Ia=3.8 mA)                  供电                  电源：U =11～40V（无显示时8~40V），极性反接保护                  电源波动：允许波动USS≤3V(当Ub≥15V，fmax=1 kHz时)                  性能特性                  响应时间：1s                  参考条件：标定温度+23℃(73.4°F)±5K                  电源影响：≤±0.01%/V偏离24V1                  环境温度影响(温度漂移)：热电阻(Pt100)： Td=±(15ppm/K*(最大测量范围+200)+50ppm /                  K*预设测量范围)*△θ                  △θ =环境温度对参考温度的偏离值                  长期稳定性：≤0.1K / 年2或0.05% /年3 2                  负载影响：≤±0.02% / 100Ω1                         1、所有数值相对于测量终值                              2、根据参考条件                              3、%相对于可调的测量范围(取大值)