26G Hz high frequency radar level transmitter-Product Center-Yantai Stark Instrument Co., Ltd.-

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Name:	26G high frequency radar level transmitter
Model:	HBRD902
Measuring range:	30m
Accuracy:	± 3mm
Working temperature:	-40 ~ 150 ℃
Signal output:	4~20mA/HART (2/4-wire) RS485/ Modbus
Power supply:	DC24V or AC220V

Measuring range: 30 meters

Process connection: thread, flange

Medium temperature: -40 ℃ ~ 150 ℃

Process pressure: -0.1 ~ 4.0MPa

Accuracy: ± 3mm

Protection grade: IP67

Frequency range: 26GHz

Explosion-proof grade: Exib CT6 Gb

Signal output: 4~20mA/HART (2/4-wire)

RS485/ Modbus

Process connection	Thread: G1½ "A or 1½"NPT or flange
Antenna material	Stainless steel / PTFE
Shell	Shell seal	Silicone rubber
	Shell window	Polycarbonate
	Ground terminal	Stainless steel
Power supply	Two wire	Standard	(16～26) V DC
		Intrinsically safe	(21. 6～26. 4) V DC
		Power consumption	max 22. 5mA / 1W
		Allow ripple
	Flameproof	- <100Hz	Uss < lV
		- (100～100K) Hz	Uss < l0mV
		(22. 8～26. 4) V DC	2-wire
		(198～242) V AC	4-wire / 110V AC
Cable	Cable entry/plug	M20x1.5
		Blind block M20x1.5
	Terminals	Wire cross section 2.5mm²
Output parameters	Signal output	(4～2 0) mA
	Communication protocol	HART
	Resolution	1. 6μA
	Fault signal	Current output is unchanged
		20. 5mA
		22mA
		3.9mA
	Integration time	(0～36)s Adjustable
Blind zone	Antenna end
Max measuring range	HBRD901	10m (For liquid)
	HBRD902	30m (For liquid)
	HBRD902T	20m (For liquid)
	HBRD903	70m (For solid)
	HBRD904	80m (For solid)
	HBRD905	30m (For solid)
	HBRD906	20m (For liquid)
Frequency	26GHz
Communication interface	HART
Measurement interval	>1s (Depending on parameter settings)
Adjust time	>1s (Depending on parameter settings)
Display resolution	1mm
Working temperature	(-40～100) ℃
Process temperature (temperature of the antenna section)	HBRD901	(-40～130)℃
	HBRD902	(-40～250)℃
	HBRD902T	(-40～250)℃
	HBRD903	(-40～250)℃
	HBRD904	(-40～250)℃
	HBRD905	(-40～250)℃
	HBRD906	(-40～200)℃
Relative humidity	˂ 95%
Working pressure	Max. 4MPa
Shockproof	Mechanical vibration 10m/s² , (10～150)Hz

Small antenna size, easy to install ; Non-contact radar, no wear, no pollution.

Almost no corrosion, bubble effect; almost not affected by water vapor in the atmosphere, the temperature and pressure changes.

Serious dust environment on the high level meter work has little effect.

A shorter wavelength, the reflection of solid surface inclination is better.

Beam angle is small, the energy is concentrated, can enhance the ability of echo and to avoid interference.

The measuring range is smaller, for a measurement will yield good results.

High signal-to-noise ratio, the level fluctuation state can obtain better performance.

High frequency , measurement of solid and low dielectric constant of the best choice.

The radar sensor is 26G high frequency radar level measurement instrument, the maximum measurement range of up to 70 meters. The antenna is further optimized, signal microprocessor model can be more high rate analysis, the instrument can be used for reactor, solid silo and some complex measurement conditions.

Radar level transmitter antenna microwave pulse is narrow, the downward transmission antenna. Microwave exposure to the medium surface is reflected back again by the antenna system receives, sends the signal to the electronic circuit automatically converted into level signals (because the microwave propagation speed, electromagnetic wave to reach the target and the reflected back to the receiver this time is almost instantaneous).