Feature

RADAR TYPE LEVEL INDICATOR（Frequency Modulated Continuous Wave）
VG7 Series

The radar type level meter can be used for various applications since the microwave speed is not affected by temperature, pressure, change in the permittivity of the measured substance, or density modulation.

It can be used for powders, granules, liquids, slurries and viscous substances.
Change of the measured substance does not affect the measurement.
Maximum of 40 m can be measured without contact.
It can be used under vacuum, high temperature and high pressure.
ATEX EExia (Intrinsic Safety Explosion-proof) certified products
Low power consumption (75 mW)

Operating Principles

The frequency when the transmitted electromagnetic wave reflects and reaches the receiver is detected. The required time is calculated from the change portion, converted into the level position, and then output.
For frequency modulation, signal processing to keep linearity is programmed.

Standard Specification

Power Supply (Two Wire)	Non Explosion-proof・EExi	DC24V(DC14～30V)
Power Supply (Two Wire)	EExd	DC24V(DC20～36V)
Measuring Range	Min Tank Height	0.5m
	Max Measuring Range	40m（dependant on environment）
	Blocking Distance	Extended Length + Antenna Length + 0.1m
Output	Output 1 (Max Load Resistance 350Ω)	DC4～20mA　HART （Max Load Resistance 350Ω）
	Error Output	DC3.6mA or DC22mA or hold
	Accuracy	0.05%
	Resolution	± 2μA
Accuracy	Accuracy	±3mm（dependant on environment）
	Resolution	1mm
	Beam Angle(DN50)	15°
	Beam Angle(DN80)	10°
Conditions	Ambient Temperature	-40～+80℃（EExia：-40～+60℃）
	Storage Temp. for Insutrment	-40～85℃
	Flange Temperature	-40～+200℃（EEx：+150℃）
	Withstanding Pressure	0.1MPa～4MPa
	Enclosure Rating	IP-66　NEMA6-6X