830 系列压力变送器/传感器 

湿/湿压差传感器 
 

特性... 

• 双端口流体介质 
• 带孔螺钉保证数据** 
• 可选易于安装类型

概况/设计原理: 

830系列设计用于液体或气体的湿/湿压差测量。它们安装有快速反应电容传感器，反应可比传统液体填充型变送器快大约20倍。传感器和信号处理电子线路相连，可获得很高精度、和压力成比例的线性模拟输出。可提供单向和双向模块，线路压力可达250psi。这些元件具有放气口，可以消除线路和压力腔的所有空气. 

工作原理: 

一个独特的绝缘系统将压差感应到薄膜的运动进行传递，从高的线路压力环境传至干容器，从而使电容板移动，该移动和薄膜的运动成比例。电子电路将电路输出和压力线性化，并补偿传感器的温度影响. 

典型应用: 

• 能量管理系统 
• 过程控制系统 
• 液体和气体流量测量 
• 过滤器监测 
• 液体等级管理 

Specifications
Input
Pressure Range		1 to 100 psid
Proof Pressure		See ordering chart
Burst Pressure		See ordering chart
Common Line Pressure		< 250 psia
Fatigue Life		>1 million cycles
Performance
Supply Voltage (Vs)		9-30 Vdc (13-30 Vdc for 10 Vdc output)
Long Term Drift		0.5% FS/year
Accuracy		±0.25% FS
Thermal Error Zero		0.02% FS/°F (0.036% FS/°C)
Thermal Error Span		0.02% FS/°F (0.036% FS/°C)
Compensated Temperature		30°F to +150°F (-1°C to +65°C)
Operating Temperatures		0°F to +175°F (-18°C to +80°C)
Storage Temperatures		-65°F to +250°F (-54°C to +121°C)
Zero Tolerance		.5% FS
Span Tolerance		.5% FS
Mechanical Configuration
Pressure Port		See ordering chart
Wetted Parts		17-4 PH Stainless Steel, 300 Series SS, Viton and Silicone
Electrical Connection		7/8" knockout for 1/2" conduit; Screw terminal strip
Enclosure		Stainless Steel, Aluminum
Vibration		5g Peak Sinusoidal; 5 to 500 Hz
Acceleration		10g
Shock		50g
Approvals		CE
Weight		15 oz
Voltage Output Units
Output		0-5 Vdc or 0-10 Vdc (3-wire)
Min. Load Resistance		5000K ohms
Current Output Units
Output		4-20 mA (2 wire)
Max. Loop Resistance		(Vs-9) x 50 Ohms
Optional Three-Valve Manifold
Wetted Parts		360 Brass, Copper 122, Acetal plug valves and Nitrile O-rings
Valve Type		90 degree on/off
Process Connections		1/4" NPTF
Dimension		7.05" x 6.25" x 2.16" D
Weight		2.5 lbs.