DCRD1000A1 high frequency 26GHz radar level transmitter

 

1. Working Principle

Radar level antenna emits narrow microwave pulses that transmitted down by the antenna. The microwave comes into contact with the measured medium surface then reflected back and receiving by the antenna system. The signal is transmitted to electronic circuit and partly convert to level signals (as the microwave featured with high propagation speed, it's almost instantaneous for the electromagnetic waves to reach the target and return to the receiver)

 

2.Features of 26GHz Radar Level Transmitter

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

·Almost free from corrosion, foam impact; hardly affected by the change of the temperature, pressure and water vapor in the atmosphere.

·Severe dust environment is not likely to affect the work of the high-frequency level transmitter.

·Shorter wavelength can achieve better reflection for the inclined solid surface.

·The small field angle and energy concentration, enhanced echo capabilities, and beneficial to avoid interference.

·Minimized measuring blind spot can gain better result of small tank measurement.

·High SNR, even in the case of fluctuations can result in better performance.

·High frequency, the best choice to measure solids and low dielectric media.

3. Radar level transmitter Technical Parameter

Application	All kinds of strong corrosive liquid, strong acid, strong base, Chemical liquid
Measuring range	20meter
Process connection	Screw, Flange
Medium Temperature	-40～120°C
Process pressure	-0.1～0.3MPa
Precision	± 5mm
Frequency range	26GHz
Anti-explosion/safety grade	Exia IIC T6 Ga /IP67
Signal output	4...20mA/HART(Two-wire/ Four) RS485/Mod bus

4. DCRD1000A1 radar level transmitter Model selection table

Anti-explosion

P  Standard (non-Ex)

I   Intrinsically Safe (Exia IIC T6 Ga)

Antenna Type / Material / Process temperature 

F Sealed horn Φ45 / PTFE

H Sealed horn Φ76mm / PTFE

Process connection / Material

G  Screw thread G 1½A

N  Screw thread 1½NPT

A  Flange DN50 / PP

B  Flange DN80 / PP

C  Flange DN100 / PP

E  Flange DN150 / PP

Y  Special custom

Antenna Extension 

A 100mm

B 200mm

Electronics unit

2 (4 ~ 20) mA / 24V DC / HART two-wire system

3 (4 ~ 20) mA / 24V DC / HART four-wire system

4 (4 ~ 20) mA / (85~ 265) V AC / HART four-wire system

5 RS485/Modbus/( 6~26)V DC

Housing / Safety grade

L  Aluminum / IP67

G Aluminum / IP67 Double chamber 

Cable entry

M  M20 * l. 5

N  1/2 NPT

Display/ programming

A  With

X  Without 

Special custom

Y  Special custom