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Microwave level gauge MRG-10

製品詳細
The MRG-10 measures liquid level by transmitting low energy radar pulses toward a liquid surface and receiving the radar echoes.

Operation Manual Product data sheets[PDF] Engineering Specifications[doc] How to Use[Video]

The radar pulse is virtually unaffected by the contents and atmosphere of the tank, temperature or pressure. Thus radar measurement is proven to be the most reliable gauging method in most applications. Furthermore, maintenance requirements are practically zero because no part of the gauge is in physical contact with the liquid.
These features make the MRG-10 very well suited for storage and buffer tanks in the chemical and water industry.

The MRG-10 is most appropriate for calm liquid surfaces. If you intend to use the MRG-10 to measure turbulent surface liquids, it may be recommended to employ a still pipe used in order to achieve a calm surface.

The MRG-10 is appropriate for storage tanks or buffer tanks that have relatively calm surfaces.
  • Chemical and petroleum
  • Pharmaceuticals
  • Food and beverage
Other applications include:
  • Industrial water such as river intake gates
  • Water supply
  • Sewage water treatment plant
  • Hydraulic power station


♦Application Examples

Microwave level gauge

Opne conduits

Microwave level gauge

Tanks with turbulent surfaces

Specifications

1. General
Measuring principle Time Flight impulse Radar technology
Operating frequency 6 GHz
Half power beam angle Rod antenna: 30deg.,   Cone antenna 4": 34deg., 6": 22deg.,  8": 17deg.
Microwave output power Max 1 μ W
Reference conditions Free space reflection from metal surface, ambient temperature 25℃, atmospheric pressure
2.Display / Configuration
Local display  5 digit LCD display with 4 configuration buttons. Level, Ullage, Volume, Current or Amplitude output
HART hand held communicator Rosemount communicator RS275, just display not for configuration
PC Remote configuration Windows base setup and configuration software
3 Electrical
Power supply Loop powered 16-36 VDC (16-30VDC in Ex applications)
Output Analog DC4-20mA +HART
Output variable Level, Ullage in m or ft. Volume in %, Amplitude in dB.
Signal on alarm Hold, Low (3.9mA), High (22mA)
Cable entry  2-M20x1.5(Applicable Cable diameter : 6.5-9.0mm)
4. Mechanical
Antenna  Rod antenna, Cone antenna 4", 6", 8" 
Antenna material exposed to tank Rod antenna: PFA and SUS(316L,ext.version)
Cone antenna: 4", 6", 8" SUS(316L), PTFE, Viton
Antenna dimension See page 5 and 6
Housing / Enclosure  Casting Aluminum
Flange On request or customer supply
Mass 3.3--4.3Kg, depend on antenna size
Height above flange 230 mm
5. Environment Condition
Max. pressure 10 bar. (145 psi) 
Ambient temperature  -20 ℃ to 70 ℃ (-4°F to 158°F), LCD Display -20 ℃ to 70 ℃
Storage temperature  -40 ℃ to 80 ℃ (-40°F to 176°F)
Tank inside temperature  -20 ℃ to 150 ℃ (-4°F to 302°F)
Ingress protection  IP65
Vibration resistance IEC 68-2-6/1G
Ex. Approval TIIS Ex ia IIC T4
6 Measuring Performance
Instrument accuracy  +/- 10mm
Repeatability  +/- 1mm
Update interval 1 Second
Measuring range Depend on Antenna type and products nature, see diagram at page 4

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*Design and specifications are subject to change without notice.