AVF250H Series
The AVF250H Series is a horizontally mounted metal tube variable area flowmeter. With its unique design, it can provide a mechanical pointer display without power supply, as well as intrinsically safe and explosion-proof types to suit various operating conditions.
Features
- Spring-type horizontal-mounted metal tube flowmeter
- 5 Digit Flowrate & 7 Digit Totalizer
- Local indication without auxiliary power
- 4-20 mA and scale pulse output
- Low pressure loss in gas and steam application
- Damper for Gas / Steam application
- Consistent overall length
- Intrinsically Safe & Explosion Proof for hazardous area
Specification
| Size | : | 15,20,25,40,50,65,80,100,125,150,200 mm |
| Measuring Range | : | Liquid _1~200000 L/hr |
| : | Gas _0.03~3000 m3/hr | |
| Turndown Ratio | : | 10:1 (20:1 Option) |
| Accuracy | : | +/-2.5% (Standard) |
| : | +/-1.5% (Option) | |
| Repeatability | : | +/-0.8% FS |
| Material | ||
| Tube & Float | : | Stainless Steel 304 |
| : | Stainless Steel 316 | |
| Standard Pressure | : | 40 kgf/cm2 (15-50 mm) |
| : | 16 kgf/cm2 (65-200 mm) | |
| Temperature | : | 0-100 °C (Standard) |
| Flange Type | : | JIS 10K / JIS 20K / JIS 40K |
| ANSI 150# / ANSI 300# / ANSI 600# | ||
| DIN PN10 / PN16 / PN25 / PN40 | ||
| Fluid Viscosity | : | 300 cP Max. |
| Communication | : | RS485 (MODBUS Protocol) |
| : | HART signal (Compatible) | |
| Data Storage | : | Operation parameters and totalizer |
| figures are stored by EEPROM for | ||
| more than 10 years |
| Local Display | : | Mechanical Indicator (Standard) |
| Digit Display | : | 5 Digit Flowrate |
| : | 7 Digit Totalizer | |
| Current Output | : | 4-20 mA (2-Wire) |
| Load | : | Max. 600 Ω |
| Pulse Output | : | Open collector (Scaled pulse) |
| Rating | : | 3-30 VDC, 100 mA Max. |
| Limit Switches | : | 2-Wire NAMUR ( For Exia / Exd ) |
| : | 3-Wire transistor | |
| Keypad | : | 3 Internal keys for programming |
| and display control | ||
| Ambient Temperature | : | 0-60 °C |
| Protection Class | : | IP65 |
| : | Intrinsically Safe, Eex ia IIC T5 | |
| : | Explosion Proof, Ex d IIC T6 | |
| Housing Material | : | Aluminum Alloy |
| Cable Entry | : | Standard: M20 Option: 1/2″ NPTF |
| Pressure Loss | : | 0.07-0.7 kgf/cm2 |
| Power Supply | : | 12-32 VDC |
| : | Ni-MH Battery (3 years working hours) |
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