美國德威爾Dwyer GFM系列 氣體質(zhì)量流量計

將節(jié)流裝置和直管傳感器結(jié)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(shù)顯顯示氣體流量，可90度旋轉(zhuǎn)的LCD顯示?？珊虶FT悉尼流量積算器配合使用。GFM帶有NIST溯源證書。

美國德威爾Dwyer GFM系列 氣體質(zhì)量流量計

產(chǎn)品規(guī)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.

美國德威爾Dwyer GFM系列

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.