HQ980 series thermal mass flow meter are introduce into America tech and research our Patent (patent No.: 98224228.X). and get the certification of explosion-proof (No.: GYB98463). Our product also pass country standard (JJG879-95). HQ980 flow meter direct mass flow measurement without the need for pressure or temperature correction and it become the most popular flow meter from all over the world.
type |
HQ981in-line thermal mass flow |
HQ983 insertion |
medium |
gas（except for acetylene） |
accuracy |
±0.5%,±1% |
application |
Iron, steel, chemicals, petroleum, metallurgy, paper, food, urban drainage and other industries |
diameter |
D6mm—300mm |
D40mm—6000mm |
flow velocity |
0.0001—60m/s |
range of pressure |
<2.5MpaG（MAX<20MpaG） |
signal output |
4—20mA，<=500Ω，RS485,HARTcommunicatot |
protect class |
IP65、IP68 |
others |
Protect class :DiiCT3， RS—232C& HQ—BUS，alarm，range ability 1：120(1:1000) |
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