Radar level meter antenna by narrow microwave pulse, the pulse propagation in space at the speed of light, meet the measured medium surface, the part of the energy to be reflected back, by the same antenna. Emission pulses and the time interval of the received pulse and the antenna to the measured medium surface is proportional to the distance. Due to the electromagnetic wave propagation and very high speed, pulse and receiving pulse time interval is very small (nanosecond) it is difficult to confirm, 90X series of 26G radar level meter adopts a special demodulation technology, can accurately identify the transmitted pulse and pulse interval, thus further calculate the antenna to the measured medium surface distance.
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INTRODUCTION
Application: Rivers, Lakes, Shoal
Measuring Range: 30 meters
Process Connection: Thread G1½ A″ /Frame /Flange
Temperature: -20℃ ~ 100℃
Process Pressure: Normal pressure
Precision: ± 3mm
Frequency Range: 26GHz
Protection Grade: IP67 / IP65
Power Supply: (6 - 24V) DC / Four-wire
24V DC / Two wire
The Signal output: RS485 / Modbus ( 6~24V DC)
4~20mA / Hart Two wire ( 24V DC)
The Scene Display: Optional
Outer Covering: Aluminum / Plastic /Single chamber
APPLICATIONS
Ø Radar level meter adopts a recommended industry emission frequency of 26GHz, so it has beam angle is small, concentrated energy, has stronger anti-interference ability and greatly improves the precision and reliability of measurement.
Ø Small antenna size, easy to install and dustproof cover antenna protection device.
Ø Light weight about 1KG, easy to install.
Ø The measurement range of up to 70 meters, covering a large reservoir water level measurement.
Ø With a variety of output circuit interface and data acquisition system.
Ø The pulse working mode, radar level meter transmit power is very low, no harm to human body and environment.
STRUCTURE SIZE (mm)
Out shell
Appearance size
Technical Parameters
| Items | Description | Remarks |
| Process Connection | Thread G1½″A / Bracket | |
| Antenna Material | Stainless Steel / PTFE | |
Power Supply | (16 ~ 26) V DC | standard type |
| (21.6 ~ 26.4) V DC | Intrinsically safe | |
| (110 ~242)V AC | 4 wire system | |
| Output | 4-20mA/ Hart, RS485 | |
| The integral time | 0~36S adjustable | |
| Max range | 70Meters | |
| Display resolution | 1mm | |
| Process temperature | (40～130)℃ | |
| Pressure | Max.4MPa |
Model Selection
| HYRD903 | Code Selection | Remarks | |||||||
| Range | 0~30M(pls adv range needed) | ||||||||
Antenna Type | G | Thread G1½″ A | |||||||
| N | Thread 1½″ NPT | ||||||||
| A | Flange DN80 /SS304 | ||||||||
| B | Flange DN100 /SS304 | ||||||||
| C | Flange DN125 /SS304 | ||||||||
| D | Flange DN15M0 /SS304 | ||||||||
| M | Universal Flange DN80 /SS304 | ||||||||
| K | Universal Flange DN100 /SS304 | ||||||||
| T | Universal Flange DN125 /SS304 | ||||||||
| Z | Universal Flange DN150 /SS304 | ||||||||
| Antenna type/Material | A | Horn Antenna Φ76mm / SS316L | |||||||
| B | Horn Antenna Φ96mm / SS316L | ||||||||
| C | Horn Antenna Φ121mm / SS316L | ||||||||
| Y | Special Request | ||||||||
Output and power supply | 3 | (4~20) mA / 24V DC / HART 2 wire | |||||||
| 4 | (4~20) mA / 220V AC / HART 4 wire | ||||||||
| 5 | RS485 Modbus / 6~24V/ 4 wire | ||||||||
Enclosure and protection | L | Aluminum / Single chamber / IP67 | |||||||
| H | Aluminum / Double chamber / IP67 | ||||||||
| G | Plastic / Single chamber / IP65 | ||||||||
| K | Stainless steel / Single chamber / IP67 | ||||||||
| Cable Entry | M | M20 X 1.5 | |||||||
| N | 1/2NPT | ||||||||
LCD display | A | With | |||||||
| X | Without | ||||||||
Application:
HYRD908 used for river level measurement
