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Anti-corrosion Rod Type Radar Level Gauge
HQ-51L (HQ-8260H) anti-corrosion rod type radar level gauge, with a closed anti-corrosion antenna designed for small-sized liquid tanks, solves high-precision measurement of corrosive liquids. HQ-51L radar level gauges are suitable for liquid/material level measurement of corrosive media, dust, mist, and easily crystallizable media inside 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 Intrinsically safe Ex db ia IIC T6 Ga
| Frequency | 26GHz |
| Measure Distance | 10m (Liquid) |
| Resolution | 1mm |
| Precision | ±10mm |
| Backlash | ±5mm |
| Blind Area | 0.4m |
| Measurement Interval | ≥1s, according to the set parameters |
| Response Speed | ≥5s, according to the set parameters |
| Beam Angle | 22° |
| Dimensions (excluding flanges) | 120*94*320mm |
| Install | Flange DN50, DN80, DN100, DN150 |
| Process Temperature | -40℃-85℃ |
| Process Pressure | Atmospheric pressure |
| Relative Humidity | <95%RH |
| Antenna Material | PTFE |
| 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 | ||||||
