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;
                  · 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的组件符合UL3111-1;
                  · Ex-证书:
                       ATEX Ex ia
                       FM IS
                       CSA IS
                  · GL船级
                  · 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:±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*(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)