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