ASF7100 Series

ASF7100 Series The ASF7100 Series Swirl Flowmeter is a gas flow meter that combines turbine & vortex flow measurement technologies to provide a reliable, high accuracy, robust, maintenance free flow meter. The turbine-shaped flow inlet causes the process flow to rotate causing a vortex core to form & a subsequent secondary rotation causes thread-like spirals to be formed. These resulting secondary pressure frequencies are linear & proportional & are measured by dual piezo-electric sensors. The resulting measurements are processed & pressure & temperature compensated and then converted to the flow measurement display. ASF7100 Series Swirl Flow meter can be widely used in petroleum, chemical, electricity, metallurgy, coal and other industries.

FEATURES

2 Integral sensors reduce external vibration / frequency interference    No integral moving parts to ensure steady, reliable and long service life    Integral temperature & pressure measurement ensuring actual compensation    Multiple signal O/P's: 4-20 mA, Pulse, RS485, Alarm    Adjustable display / readout (90o, 180o, 270o, 360o) Simple adjustment    Battery powered, or external DC powered    Reduced  pressure loss due to internal piping configuration    Reduced upstream / downstream straight pipe requirements

SPECIFICATION

Size: Local Display: 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 4 lines LCD 150, 200 mm (1/2", 3/4",1-1/4",1-1/2", 2",  7 Digit flowrate 2-1/2", 3", 4", 5", 6", 8") 8 Digit + 4 Decimal totalizer Measuring Range: Unit: 0.3-3600 m3/hr Nm3/hr, m3/hr, kg/hr Accuracy: Keypad: +/-1.5% of reading (Standard) 3 Internal keys for programming  +/-1.0% of reading (Option) and display configuration Housing Material: Current Output: Aluminum Alloy 4-20 mA (2 wire, 4 wire) Body Material: Load Cast Aluminum Alloy Rohm=(VDC-15) * 50 Stainless Steel 304 Output Unit Stainless Steel 316 Normal flow rate / Actual flow rate Stainless Steel 316L Pulse Output: Process Connection: Active Frequency / Scale Pulse Flange Type Rating Flange Type: 24 VDC, 50 mA Max. JIS 10K / JIS 20K / JIS 40K Alarm Output: ANSI 150# / ANSI 300# / ANSI 600# 2 Relays, Upper and lower alarm PN10 / PN16 / PN25 / PN40 Rating Max. Pressure: 5A 30 VDC / 5A 250 VAC Cast Aluminum Alloy, Max. 16 kgf/cm2 Output Unit Stainless Steel, Max. 64 kgf/cm2 Normal flow rate / Actual flow rate / T / P Medium Temperature: Communication: -20~80 oC  RS485 (MODBUS) Ambient Temperature: Data Storage: -20~65 oC  Operation parameter and totalizer   Power Supply: figures are stored by EEPROM (>10 yrs.) 15-30 VDC (2 Wire) Cable Entry: 24 VDC +/-15% (4 Wire) Standard: M20 * 1.5  Option: 1/2" NPTF 3.6V Battery, Size C Protection Class: Power Consumption: IP65 <2W (24 VDC) Explosion Proof, Ex d IIC T4-T6 Battery Life: Sensor: More than 2 years (3.6V Battery) Pressure Sensor Piezoresistive silicon Sensor Temperature Sensor RTD