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Products // Thermal Mass Flowmeter  
ATF2000 Series

ATF2000 Series thermal mass flow meter is designed on the basis of thermal dispersion. It adopts method of constant differential temperature to measuring gas flow. It has the advantages of small size, high digitization, easy installation and high accuracy.
ATF2000 is a multi-functional thermal mass flow meter that measures mass flow and volume flow. With insertion type connection, the meter can achieve a hot-tapped installation and maintenance.

 Wide flow range: 0.1-120 m/s for gas  
 Turndown ratio of least 100:1  
 Temperature range up to 350 oC  
 Good vibration resistance and  long service life  
 Hot-tap installation. Easy to install & maintain  
 No moving parts, no wear, maintenance-free, low pressure loss  
 Multiple installation options: Flange, thread, wafer, clamp and insertion  
 Direct mass flow measurement of gases. No additional pressure and temperature compensation



Size: Unit:
10,15,20,25,32,40,50,65,80,100,125,150, Nm3/hr, kg/hr, NL/min, kg/min
200,250,300,350,400,450,500,...7000 mm Temperature:
Measuring Range: -25~150 oC (Standard)
0.028 Nm3/hr-13854000 Nm3/hr -25~350 oC (Option)
0.036 kg/hr-17872000 kg/hr Ambient Temperature:
Turndown Ratio: -20~60 oC
Over 100:1 Pressure:
Accuracy: 63 kgf/cm2 (Max. )
+/-1.0% of reading +/-0.5% FS Protection Class:
Gas Pressure Effect: Converter: IP67, Sensor: IP68
<0.2% / bar of the measured value  Explosion Proof, Ex d IIC T4
Gas Temp. Effect: IR Remote Control
<0.02% / K of the measure value Intrinsically Safe, Ex ib IIC T6 
Repeatability: Display:
+/-0.25% of reading 11 Digit totalizer / flowrate
Flange Type Material: Current Output:
Flange 4-20 mA
Stainless Steel 304 (Option: S.S. 316) Load
Measuring Tube Max. 500 W
Stainless Steel 304 (Option: S.S. 316) Pulse Output:
Sensor Scaled Pulse (1 unit / Pulse) (Option)
Stainless Steel 316L  Communication:
Insertion Type Material RS485 (MODBUS Protocol)
Sensor HART (Compatible) (Option)
Stainless Steel 316L  Housing Material:
Ball Valve, Adaptor Aluminum Alloy
Stainless Steel 304 (Option: S.S. 316) Cable Entry:
Hot-Tap Machine Standard: M20 * 1.5, Option: 1/2"NPTF
Stainless Steel 304 Power Supply:
Process Connection: 24 VDC +/-10%
Flange Type, Insertion Type¡­ 90-260 VAC, 50/60 Hz
Flange Type KeyPad:
JIS 10K / JIS 20K / JIS 40K 4 Internal keys / Infrared Remote Control 
ANSI 150# / ANSI 300# / ANSI 600# (no need to open the cover) for 
DIN PN10 / PN16 / PN25 / PN40 display control
Insertion Type Installation:
Thread M33 * 2, G1-1/2" (Hot-tap Type) Compact or Remote

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