830 系列壓力變送器/傳感器 

濕/濕壓差傳感器 
 

特性... 

• 雙端口流體介質 
• 帶孔螺釘保證數據** 
• 可選易于安裝類型

概況/設計原理: 

830系列設計用于液體或氣體的濕/濕壓差測量。它們安裝有快速反應電容傳感器，反應可比傳統(tǒng)液體填充型變送器快大約20倍。傳感器和信號處理電子線路相連，可獲得很高精度、和壓力成比例的線性模擬輸出?？商峁﹩蜗蚝碗p向模塊，線路壓力可達250psi。這些元件具有放氣口，可以消除線路和壓力腔的所有空氣. 

工作原理: 

一個獨特的絕緣系統(tǒng)將壓差感應到薄膜的運動進行傳遞，從高的線路壓力環(huán)境傳至干容器，從而使電容板移動，該移動和薄膜的運動成比例。電子電路將電路輸出和壓力線性化，并補償傳感器的溫度影響. 

典型應用: 

• 能量管理系統(tǒng) 
• 過程控制系統(tǒng) 
• 液體和氣體流量測量 
• 過濾器監(jiān)測 
• 液體等級管理 

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.