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北京朗潤達科貿有限公司
北京朗潤達科貿有限公司
Dwyer 氣體質量流量計 GFM系列
流量測量量程可到1000L/min，耐壓到500psi，可帶NIST溯源證書
GFM系列 氣體質量流量計將節流裝置和直管傳感器結合在一起，能夠精確可靠地測量流量。它不受溫度和壓力變化的影響。采用3位半數顯顯示氣體流量，可90度旋轉的LCD顯示。可和GFT悉尼流量積算器配合使用。GFM帶有NIST溯源證書。
產品規格：
Service: Clean gases compatible with wetted parts.
Wetted Materials: GFM-1XXX: anodized aluminum, brass, 316 SS and fluoroelastomer o-rings; GFM-2XXX: 316 SS and fluoroelastomer o-rings.
Accuracy: ±1.5% FS including linearity over 59 to 77°F (5 to 25°C) and 5 to 60 psia (0.35 to 4 bar).
Repeatability: ±0.5% of full scale.
Response Time: 2 seconds to within ±2% of actual flow.
Output: Linear 0-5 VDC and 4-20 mA.
Maximum Particulate Size: 5 microns.
Temperature Limits: 32 to 122°F (0 to 50°C).
Power Supply: 12-26 VDC.
Process Connections: 1/4" compression fitting for flow rates ≤50 L/m; 3/8" for 100 and 200 L/m; 1/2" for 500 L/min; 3/4" for 1000 L/min.
Pressure Limits: 500 psig (34.5 bar).
Leak Integrity: 1 x 10-7 sccs of Helium.
Display: 90° tiltable, 3-1/2 digit.
Agency Approvals: CE.
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