Description
Overview
GAOTek thermal gas mass flow meter are constant power thermal gas mass flowmeters. Based on the principle of heat conduction technology, Newton’s laws of thermodynamics are used to achieve the measurement of gas mass flow.
Features
- Easy installation and maintenance
- With Bluetooth transmission function
- With Modbus communication, remote monitoring
- Large range ratio, wide measurement flow rate range
- No Moving parts, no pressure loss
- Measuring gas mass flow without temperature and pressure compensation
- Fully isolated electrical structure thoroughly filters out external interference
- Compact design, light in weight, LCD display for flow rate and total volume
Technical Specification
| Accuracy class | ±1.5 % RD + 0.5 % FS |
| Repeatability | ±0.5 % |
| Responding speed | 1 second |
| Diameter | Plug-in type: DN 25 or DN 400 |
| Velocity range | 0.3 Nm / s to 30 Nm / s, 0.6 Nm / s to 60 Nm / s, 0.9 Nm / s to 90 Nm / s, 1.2 Nm / s to 120 Nm / s |
| Installation method | Integrated or split |
| Connection method | Card sleeve connection |
| Measuring medium | Compressed air, oxygen, nitrogen, etc. |
| Operating pressure | 232.06 PSI (15.9 bar) |
| Signal interface | ModBus@RS 485(Bluetooth function)ModBus@RS 485 & 4 mA to 20 mA (Bluetooth function) |
| Power supply | 13.5 V to 42 V DC, 85 V to 265 V AC |
| Protection class | IP 65 |
| Sensor material | 316 |
| Body material | 304 |
| Ambient temperature | -40°F to 140 °F (-40 °C to 60 °C) |
| Operating temperature | -40 °F to 302 °F (-40 °C to 150 °C) (medium temperature, plug-in type) |