|
Parabolic Radar Level Gauge
HQ-51L (HQ-8260P) parabolic antenna consists of a reflector and a feed source located at its focal point, forming an axisymmetric parabolic structure antenna. The main advantage of the parabolic radar level gauge is its high directionality, similar to a searchlight or flashlight, which converges microwaves in a specific direction into a narrow beam. Due to the narrow beamwidth and directionality of the HQ-8260P parabolic radar level gauge, it can measure well when there are many interferences inside the tank wall, without being affected by false echoes from interferences such as stairs. Suitable for measuring large range, high dust, high temperature, and low dielectric constant media in the cement, power, and steel industries. 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
| Frequency | 26GHz |
| Measure Distance | 40m |
| Resolution | 1mm |
| Precision | ±10mm |
| Backlash | ±5mm |
| Blind Area | 0.6m |
| Measurement Interval | ≥1s, according to the set parameters |
| Response Speed | ≥5s, according to the set parameters |
| Beam Angle | 5° |
| Dimensions (excluding flanges) | 245*245*445mm |
| Install | Flange |
| Process Temperature | -40℃-85℃ |
| Process Pressure | Atmospheric pressure |
| Relative Humidity | <95%RH |
| Antenna Material | SS304L/SS316L |
| Power Supply | 16～36VDC two-wire/four-wire (HART) , 9～24VDC four-wire (RS485) |
| Signal Output | HART/4～20mA/RS485 |
| Fault Output | No change/22mA/20.5mA/4mA |
| *Heavy Load | 500Ω |
| Communication | HART/RS485 |
| On-site Display | LCD panel |
| Protection Level | IP67 |
| Cable Entrance | M20x1.5 |
| Recommended Cables | AWG18 or 0.75mm² cable |
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 | ||||||
