Microwave level gauge MRG-10

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

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