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更新时间:2024-12-16 浏览数:38
所属行业:仪器仪表> 传感器、敏感元器件(仪器仪表)> 流量传感器
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单 价:面议
德国宝德气体质量流量调节器效果图
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地址:上海嘉定区嘉涌路99弄6号楼713室。
as control element a direct-acting proportional valve guarantees a high sensitivity
and a good control characteristics of the mfc. this instrument communicates digitally with master devices,
ambient temperature -10 to +50°c3), others on request accuracy ±1.5% o.r. ±0.3% f.s.
(after 30min. warm-up time) repeatability ±0.1% f.s. settling time (t95%) <3 s materials body
一个直动式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。
通过数字方式与更高一级的设备进行通讯,
screw-in ? tting or sub-base, others on request control valve (proportional valve) valve ori? ce kvs-value normally closed 0.05 to 2.0 mm 0.00006 to 0.09 m3/h
electr. connection d-sub plug 9-pin power supply 24v dc voltage tolerance ±10 % residual ripple <2 %
power consumption 3.5 - 11.5 w (depends on proportional vale) communication digital via rs485
and 6 total weight ca. 850 g (stainless steel) mounting position horizontal or vertical light emitting diode display
(default, other allocations possible) indication for power, limit error binary input (default, other functions possible)
start autotune binary output (default, other functions possible) one relay-output for 1. setpoint not reached, max. load: 25v, 1a, 25va
这样一来,就可以省去额外的 d/a 转换。
采用毛细管技术的旁通仪器,适合额定流量范围 5 mln/min 至 15 ln/min
applicable for aggressive gases ? compact design and digital communication
紧凑型版本和数字通讯
? bypass mfc with capillary technology for nominal flow rates from 5 mln/min to 15 ln/min
2) will be compared in the digital control electronics with the prede? ned set point according to the signal;
可针对两种不同的气体对型号 8715 进行校准,用户可在两者之间进行转换。
or aggressive gases calibration gas operating gas or air with conversion factor max. operating pressure (inlet pressure)
10 bar (145 psi), depending on the ori? ce of the valve medium temperature -10 to +70°c (-10 to +60°c for oxygen)
这样一来,就可以将质量流量保持在一个确定的数值上,
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。
regardless of pressure variations or other changes in the system.
(half duplex or full duplex), rs422 protection class ip40 dimensions [mm] see drawings on pages 5
type 8715 controls the mass ? ow of gases through a sensor element which is not in direct contact with the gas itself.
the measured value provided by the sensor (see the deion on page
适合侵蚀性气体
type 8715 can optionally be calibrated for two different gases, the user can switch between these two gases.
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 mass ? ow can be maintained at a ? xed value or a prede? ned pro? le can be followed,
型号 8715 是一台用于调节侵蚀性气体质量流量的装置,
它需要一个与介质相分离的传感器。
在数字的电子调节设备中,会将传感器提供的实际值与规定的额定值进行比较;
no further a/d conversions needed. the massflowcommunicator software can be used for parameterisation and diagnosis.
5 to 15000 mln/min2) n2 equivalent control range 1:50 operating gases neutral,
housing seals stainless steel pc (polycarbonate) or l fkm, epdm or ffkm port connections npt 1/4, g 1/4,
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。德国宝德气体质量流量调节器效果图