E+H流量开关DTT31
Flow switch
Flowphant® T DTT31, DTT35
热式流量开关
Flowphant® T DTT31
Application
Flow switch for monitoring and displaying relative massflow rates of liquid media in the range from0.03 to 3 m/s (0.1 to 9.84 ft/s):
应用：
流量开关用于监测和显示相对质量液体介质流量的范围从0.03到3米/秒（0.1至9.84英尺/秒）。
Application examples:
• Monitoring cooling water circulation systems ofpumps, turbines, compressors and heat exchangers
• Monitoring pump functionality
• Leak monitoring in process lines
• Monitoring lubrication systems
• Filter monitoring in the beverage industry
应用实例：
•监控系统的循环冷却水泵，涡轮机，压缩机，热交换器
•监测泵功能
•监控过程中，泄漏线
•监视润滑系统
•过滤器的监控，在饮料行业
Benefits at a glance
This compact flow switch impresses with the latest intechnology being used:
• Practically no pressure loss
• Configuration software ReadWin® 2000 or FieldCarefor quick configuration and reliable storage of devicesettings
• Optional: 4 to 20 mA analog output to read out theflow rate as percentage value
• Optional: second switch output or 4 to 20 mA analogoutput for temperature monitoring
• Function check and process information onsite thanksto digital display at device
• Top housing section which can be rotated 310° and rotatable display make it possible to read the measuredvalues in all orientations
• DTT35: 3-A marked
• CIP-compliant up to 130 °C (266 °F)
优点
这种紧凑型流量开关最新的令人印象深刻技术被用于：
•易于安装和灵活的过程连接感谢到模块化连接
•几乎没有压力损失
•配置软件ReadWin® 2000快速配置和可靠的存储设备设置
•可选：4至20 mA模拟输出读出流速值的百分比
•可选：第二个开关输出或4〜20 mA模拟输出用于温度监控
•功能检查和处理信息的现场感谢要在数字显示设备
•顶级外壳设计，可旋转310°，可旋转屏幕，让人们有可能读取测量在所有方向上的值
•扩展温度高达130℃（266℉）
Measured variable
• Flow velocity of liquid media (calorimetric measuring principle)
• Temperature (RTD), optional for two switch outputs or additional analog output
测量项：
介质流速（热式原理）
温度（RTD）、任意两个开关量输出或者额外的模拟量输出
Measuring range测量范围：
• Flow: 0.03 m/s to 3 m/s (0.1 to 9.84 ft/s), as relative value between 0 and 100%; maximum displayresolution: 1%
• Temperature: -20 °C to +85 °C (-4 to 185 °F); display resolution: 1 °C (1 °F)
流速：0.03 m/s to 3 m/s (0.1 to 9.84 ft/s),相对值0到100%、最大分辨率：1%。
温度：-20 °C to +85 °C (-4 to 185 °F);分辨率：1 °C (1 °F)。
Output输出
signal DC voltage version: (short-circuit proof version)
• 1x PNP switch output (flow) or
• 2x PNP switch outputs (flow or temperature, adjustable) or
• 1x PNP switch output and 1x 4 bis 20 mA output, active (flow or temperature, adjustable)
直流电压信号
1x PNP开关量输出（流量）
2x PNP开惯了输出（流量或温度，值可以调节）
1x PNP开关量输出或1个4.—20mA有源输出（流量、温度、可调节）
Switch point non-repeatability
开关点重复性
|
Measuring range (water as medium) |
% of maximum value |
Influence of medium temperature1) |
Influence of ambient temperature |
|
0.03 to 0.5 m/s (0.1 to 1.6 ft/s) |
≤ 2 % |
0.05 %/K |
0.04 %/K |
|
0.03 to 1 m/s (0.1 to 3.28 ft/s) |
≤ 3 % |
0.10 %/K |
0.05%/K |
|
0.03 to 2 m/s (0.1 to 6.56 ft/s) |
≤ 5 % |
0.15 %/K |
0.10 %/K |
|
0.03 to 3 m/s (0.1 to 9.84 ft/s) |
≤ 10 % |
0.20 %/K |
0.30 %/K |
Long-term drift长期飘移性
0.5% per year under reference operating conditions
参照操作条件下0.5%每年。
Switch output response time
开关输出响应时间：100 ms
Weight approx.重量
300 g (10.6 oz), depends on sensor length and process connection
300克，依赖于传感器长度与过程条件。
Ordering information选型信息
见英文资料
