供应宝德气体质量流量调节器，BURKERT流量调节器主要参数

供应宝德气体质量流量调节器，BURKERT流量调节器主要参数

上海乾拓贸易有限公司 

　企业QQ：2880626087

　电话；021-69001039

　手机；17321017802（微信）

　邮箱；17321017802@163.com

　地址：上海市嘉定区江桥嘉涌路99弄6号713室

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

适合侵蚀性气体

紧凑型版本和数字通讯

For selecting the correct product please refer to the technical data,

 images and notes for proper use according to the data sheet.

 This instrument communicates digitally with master devices, no further A/D conversions needed. 

The MassFlowCommunicator software can be used for parameterisation and diagnosis.

Full scale range1) (Qnom) 

5 to 15000 mlN/min2) N2 equivalent Control range 1:50 Operating gases Neutral, 

or aggressive gases Calibration gas Operating gas or air with conversion factor Max. 

operating pressure (Inlet pressure) 10 bar (145 psi),

 depending on the orifi ce of the valve Medium temperature -10 to +70°C (-10 to +60°C for oxygen) 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 Housing Seals Stainless steel PC (Polycarbonate) or metal FKM,

 EPDM or FFKM Port connections NPT 1/4, G 1/4, Screw-in fi tting or sub-base, others on request Control valve (proportional valve) Valve orifi ce kvs-value Normally closed 0.05 to 2.0 mm 0.00006 to 0.09 m3/h

• Bypass MFC with capillary technology for     nominal flow rates from 5 mlN/min to 15 lN/min 

• Applicable for aggressive gases • Compact design and digital communication

Mass Flow Controller (MFC) for Gases

Type 8715 controls the mass fl 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 description on page 

2) will be compared in the digital control electronics with the predefi ned set point according to the signal; 

if a control difference is present, the control value output to the proportional valve will be modifi ed using a PI control algorithm. 

In this way, the mass fl ow can be maintained at a fi xed value or a predefi ned profi le can be followed, 

regardless of pressure variations or other changes in the system.  

Type 8715 can optionally be calibrated for two different gases, 

the user can switch between these two gases.

 As control element a direct-acting proportional valve guarantees a high sensitivity and a good control characteristics of the MFC.

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；

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。

 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。

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，

这样一来，就可以省去额外的 D/A 转换。

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 (half duplex or full duplex), RS422 Protection class IP40 Dimensions [mm]  

 See drawings on pages 5 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

Technical data

1)    The nominal fl ow value is the max. fl ow value calibrated which can be controlled. The nominal fl ow range defi nes the range of nominal fl ow rates (full scale values) possible. 2)  Index N: Flow rates referred to 1.013 bar and 0° C. Alternatively there is an Index S available which refers to 1.013 bar and 20º C 3) When an internal 5 W valve is used: Max. 40ºC

供应宝德气体质量流量调节器，BURKERT流量调节器主要参数