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Pulse Radar Level Gauge
The principle of HQ-51L (HQ-8260L) pulse radar level gauge universal joint is that the radar level gauge antenna emits extremely narrow microwave pulses, which propagate in space at the speed of light. When they encounter the surface of the measured medium, some of their energy is reflected back and received by the same antenna. The time interval between transmitting and receiving pulses is proportional to the distance from the antenna to the surface of the measured medium, thus calculating the distance from the antenna to the surface of the measured medium. HQ-51L radar level gauges are suitable for non-contact, large range liquid/material level measurement installed on the top of containers.
Environmental temperature: -20~50 ℃
Relative humidity: 5%~100% (including direct humidity)
Work pressure: 86KPa~108KPa
Process connection: thread or flange
Repeatability: ± 3mm
Resolution: 1mm
Supply voltage: 24VDC/220V AC/Ripple voltage: 1Vpp
Power consumption: 22.5mA (max)
Explosion proof grade: Explosion proof Ex db IIC T6 Gb
4. Selection
HQ-51L Radar Level Gauge Selection Table
| HQ-51L (HQ8260) | Intelligent Radar Level Gauge | ||||||
| Radar Type | AS- | 8260AS Flat radar level gauge | |||||
| P- | 8260P Parabolic radar level gauge | ||||||
| W- | 8260W Water droplet radar level gauge | ||||||
| L- | 8260L High frequency pulse radar level gauge | ||||||
| S- | 8260S Hydrological and Hydraulic Radar Water Level Gauge | ||||||
| H- | 8260H Anti corrosion rod type radar level gauge | ||||||
| AH- | 8260AH Purging type planar radar level gauge | ||||||
| L-U- | 8260L Pulse radar level gauge - universal joint | ||||||
| AG2- | 8260AG2 Enhanced lens radar level gauge | ||||||
| AS-H- | 8260AS-H High temperature planar radar level gauge | ||||||
| AZ- | 8260AZ Plane self aiming alignment radar level gauge | ||||||
| L- | 8260L-80G High frequency pulse radar level gauge | ||||||
| AH-H- | 8260AH High temperature blowing type planar radar level gauge | ||||||
| AX- | 8260AX Fully enclosed sanitary tank radar level gauge | ||||||
| AZ-F- | 8260AZ-F Sanitary self aiming planar radar level gauge | ||||||
| Antenna Material | A1 | Stainless steel horn 304 | |||||
| A2 | Stainless steel horn 316L | ||||||
| A3 | Stainless steel horn 304 liningPTFE | ||||||
| A4 | PTFE lining bushing F46 | ||||||
| A5 | PTFE rod type | ||||||
| A6 | 80G circular arc | ||||||
| Electrical Interface | N | 1/2NPT | |||||
| M | M20*1.5 | ||||||
| Pressure Rating (flange) | 1 | 1.0MPa | |||||
| 2 | 1.6MPa | ||||||
| 3 | 2.5MPa | ||||||
| 4 | 4.0 MPA | ||||||
| 5 | Special Customization | ||||||
| Measuring Medium | 1 | Liquid | |||||
| 2 | Solid | ||||||
| 3 | Particle | ||||||
| 4 | Dust | ||||||
| Output Signal | A | 4-20mA | |||||
| R | RS485 communication | ||||||
| F | Foundation Fieldbus | ||||||
| P | Profibus PA | ||||||
| G | 4G IoT | ||||||
| H | Two wire 4-20mA with HART communication protocol | ||||||
| I | Four wire 4-20mA HART；9.6-48VDC,20-42VDC | ||||||
