Cole-Parmer 80D-4/AIR/AR/HE 质量流量计

Cole-Parmer 80D-4/AIR/AR/HE 质量流量计

集成阀精确控制流量

使用三重校准的型号，多种气体的应用

这些低成本的质量流量控制器使用热气体传感技术,导致高度精确读数和可重复性。校准的空气，氦（He），氩（Ar）。有关更多信息，请致电我们的应用专家，

所有型号接受0到5伏直流电输入信号的远程阀控制。带显示屏的控制器还配备了一个电位器手动阀控制。显示屏3 1/2-数字LCD和倾斜90°，便于观看。前面板DIP开关让你选择一个工厂编程的气体：空气，氦气或氩气。

所有控制器都需要一个组合电源/输入/输出电缆。此电缆结合三种功能于一体：电源，附加0?5的直流电压信号的输入或输出。使用远程阀门控制的输入信号，输出信号用于数据采集或控制其它仪器。单独订购电源/输入/输出电缆。

防潮材料阳极化铝，黄铜，316不锈钢，氟橡胶?，和乙缩醛。每个控制器包含两个缩醛压缩接头和一个24英寸长的网络连接电线。最大压降是15 psi的最大流量。压差不应超过45磅。

精度：这些预校准的流量计，入口压力在5 40磅，当操作气体温度介于64和77华氏度（18至25°C），而维持既定的±1.5％满量程精度和线性度。超出5至40磅，加满量程的±0.02％/ PSI;超出64至77°F（18至25°C），加±0.15％/°C满刻度。

Integrated valve allows precise flow control

Use the triple-calibrated models for multiple gas applications

These low-cost mass controllers use a thermal gas flow sensing technique that results in highly accurate readings and repeatability. Model is calibrated for air, helium (He), and argon (Ar). Call our Application Specialists for more information. 

All models accept a 0 to 5 VDC input signal for remote valve control. Controllers with display also feature a potentiometer for manual valve control. Display is a 3 1/2-digit LCD and tilts up to 90° for easy viewing. Front panel dip switch lets you select one of the factory programmed gases: air, helium or argon. 

All controllers require a combined power supply/input/output cable. This cable combines three functions into one unit: power source, plus input or output of 0 to 5 VDC signals. Use the input signal for remote valve control; use the output signal for datalogging or controlling other instruments. Order the power supply/input/output cable separately.

Wetted materials are anodized aluminum, 316 stainless steel, brass, Viton?, and acetal. Each controller includes two acetal compression fittings and a 24" long cable with hub connector. Maximum pressure drop across the unit is 15 psi at maximum flow. Differential pressure should not exceed 45 psi. 

Accuracy: These precalibrated flowmeters operate at inlet pressures between 5 and 40 psi and at gas temperatures between 64 and 77°F (18 to 25°C) while maintaining the stated ±1.5% full scale accuracy and linearity. When operating beyond 5 to 40 psi, add ±0.02%/psi full scale; if operating beyond 64 to 77°F (18 to 25°C), add ±0.15%/°C full scale.