Coaxial NYRD704 1.8GHz Guided Wave Radar Level Meter Large Blue
Case 6m Measuring Range
NYRD704 1.8GHz Guided Wave Radar Level Meter Working Principle
The guided wave radar level meter is a level meter based on the
principle of time domain reflection (TDR). The electromagnetic
pulse of the radar level gauge propagates along the steel cable or
probe at the speed of light. Part of the level meter pulse is reflected to form an echo and return to the pulse
transmitter along the same path. The distance between the
transmitter and the surface of the measured medium is proportional
to the propagation time of the pulse during that period, and the
liquid level height is calculated.
NYRD704 1.8GHz Guided Wave Radar Level Meter Technical Parameter
| Typical application | Liquids, especially those with low dielectric constants |
| Transmit frequency | 1.8GHz |
| Products model | NYRD704 |
| Antenna type | Rod type;Coaxial |
| Antenna material | 304,316 (optional) |
| Echo sampling | 55 times/s |
| Measuring range | 6m |
| Measuring accuracy | ±1mm |
| Power supply | 24VDC,220VAC (optional) |
| Signal output | 4...20mA/HART/RS485/Modbus... |
| Process temperature | -40~130℃ |
| Process pressure | -0.1~2.0MPa |
| Procedure connection | Flange,Tread (optional) |
| Protection level | IP67 |
| Explosion proof grade | Exia II CT6 Ga |
Note: Products can be customized according to the specific
requirement of users!
NYRD704 1.8GHz Guided Wave Radar Level Meter Design Features
1. Using the pulse working mode, the product has extremely low
emission power, and can be installed in various metal and non-metal
containers, without harm to the human body and the environment.
2. A variety of process connection methods and types of detection
components make 70X series guided wave radar level gauges suitable
for various complex working conditions and applications. Such as:
high temperature, high pressure and low dielectric constant medium.
3. The guided wave radar level meter adopts advanced microwave
processing technology and unique Echo Discovery echo processing
technology, contact measurement, high measurement accuracy and more
accurate measurement. At the same time, the guided wave radar is
resistant to adhesion and is not affected by the external
environment such as medium temperature and adhesion.
NYRD704 1.8GHz Guided Wave Radar Level Meter Installation Guide
The following installation guide is suitable for that of cable and
rod probes for measurement of solid particles and liquid. The
coaxial tubular probe is applied only to the liquid object.
NYRD704 1.8GHz Guided Wave Radar Level Meter Installation Position
Try to stay away from the outlet and inlet.
The meter should not touch the tank internal wall for metal tanks
and plastic tanks. If it is a metal tank, the material level meter
should not be installed at the center of the tank.
It is proposed to install at 1/4 of the silo diameter.
Probes of cable or rod types should keep a distance away from the
tank wall not less than 30cm.
The probe bottom should be about 30mm to the tank bottom.
The probe should keep a distance not less than 200mm from the
obstacles within the tank.
The sensor can be installed at the center of the tank top, if the
bottom of the container is a cone, so the measurement can be taken
to the tank bottom.
