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更新时间：2022-11-18 浏览数：65
所属行业：仪器仪表> 流量仪表> 其他流量仪表
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单 价：面议
德国宝帝液体流量控制器产品特征
上海乾拓贸易有限公司
电话：-8004
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联系人：杨江玲
地址：上海嘉定区嘉涌路99弄6号楼713室。
10 barg; typical max. 2 barg Calibration medium Water (conversion to operating medium with correcting function)
Medium temperature 10 to + 40 °C Ambient temperature 0 to + 55 °C Accuracy ±1.5 % o.R. ±0.5 % F.S.
Repeatability ±0.5 % F.S. Turn-down ratio 1:10 Settling time(t95%) < 500 ms Body material Stainless steel Housing PC
(Polycarbonate) Sealing material FKM, EPDM, FFKM Port connection G 1/8, NPT 1/8, G 1/4, NPT 1/4, sub-base
Control valve Valve ori? ces Proportional valve; normally close; depending on ? ow range and pressure
存在调节偏差时，会通过一种 PI 调节算法对发送到比例阀上的调节参数进行修改。
这样一来，就可以将流量保持在一个确定的数值上，
紧凑型结构
? High dynamic control through fast flow measurement
Typical application areas of liquid dosing are: ? Heat treatment ? Machine tools ? Fuel cell technology
? Applicable for liquid dosing up to 600 ml/min (36 l/h)
? DeviceNet ? CANopen Type of protection IP40 Dimensions [mm] (without compression ? ttings)
一个无摩擦工作的比例阀作为调节元件，确保了高反应灵敏度和装置良好的调节特性。
通过快速的流量测量实现高动态调节
As a control element, a proportional valve working at low friction guarantees a high sensitivity and the good control
characteristics of the unit. MassFlowCommunicator software can be used for parameterisation and diagnosis.
Indication for: 1. Power 2. Communication (only in ? eldbus version) Limit (only in analogue version)
3. Error Binary inputs (Default functions, other functions programmable) Two: 1. Start Autotune
2. Open valve (for purging) Binary output (Default functions, other functions programmable) A relay output for:
1. Limit (desired value can not be achieved) Capacity: max. 25 V, 1 A, 25 VA
可选的现场总线
Standard version: 107 x 115.5 x 28 (BxHxT) Sub-base version: 107 x 115.5 x 43 (BxHxT) Total weight Approx. 1000 g
Installation Horizontal or vertical Light emitting diodes (Default functions, other functions programmable)
? No moving parts in medium ? Fieldbus optional ? Compact version
Type 8718 is an instrument for liquid ? ow control in process technology.
The measured value provided by the sensor will be compared in the digital control electronics with the
prede? ned set point according to the signal; if a control difference is present, the control value output to
the proportional valve will be modi? ed using a PI-control algorithm. In this way, the ? ow can be maintained at a ? xed value
or a prede? ned pro? le can be followed, regardless of pressure variations or other changes in the system.
型号 8718 是一台用于在工艺技术领域内调节液体流量的装置。
传感器发送的实际值将在数字的电子调节设备中与标准信号所规定的额定值比较；
Full scale range (Qnom) 0.9 to 36 l/h (15 to 600 ml/min) re. water Operating medium Clean
and low viscous liquids Viscosity 0.4 to 4 cSt Max. operating pressure (at inlet) Measurement range : up to max.
适合计量大为 600 ml/min (36 l/h) 的液体量
介质里无移动部件
Electrical Connection Sub-D 15-pin plug M12 (PROFIBUS) 5-pin socket M12 (DeviceNet, CANopen) 5-pin plug
Operating voltage 24 V DC ± 10 % Residual ripple < 2 % Power consumption Max. 7.5 W (10 W with ? eldbus version)
或使其遵循规定的曲线轮廓，而不会受到压力波动或设备中其他变化的影响。
The device offers a particularly compact solution. ? Packaging technology, ? Material coating, ? Bio reactors.
Input signal (set point) 0-5 V, 0-10 V, 0-20 mA or 4-20 mA Input impedence >20 kΩ (voltage), <300 Ω (current)
Output signal (actual value) 0-5 V, 0-10 V, 0-20 mA or 4-20 mA Max. current voltage output 10 mA Max.
burden current output 600 Ω Alternative input and output signal Digital with ? eldbus: ? PROFIBUS DP V1
德国宝帝液体流量控制器产品特征
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