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High temperature boiler water contact level meter guided wave radar level transmitter
1.Working principle 

Guided Wave Radar is the measuring instruments that based on the time travel principle, the radar wave travel in speed of light, run time can be converted into a level signal by the electronic component. the probe emit the high-frequency pulse and spread along the cable probe, the pulse come across the material surface and reflect back then receive by the instrument receiver and converted the distance signal to level signal.

Input

Reflected pulse signal conduction transmit along the cable to the electronic circuit part of the instrument, the microprocessor processes this signal, identify the echo that generated by the microwave pulses on the material surface. Correct echo signal recognition accomplish by the intelligent software, the distance D that from the material surface is proportional to the pulse time travel T: D=CT/2 (C represent for speed of light)

as the empty tank distance E is already known, the level L is: L = E-D.

 

Output        

by entering the empty tank height E (= zero), full tank height F (= full scale) and some applications parameters to set up, application parameters will automatically adapt the measurement environment. Corresponds to 4-20mA output.

2.High temperature boiler water contact level meter guided wave radar level transmitter Technical Parameters

Working Frequency: 100MHZ-1.8GHZ

Measuring range: Cable type: 0-30m; rod, double rod, coaxial tube: 0-6m;

Repeatability:2mm

Resolution: 1mm

Sampling: echo sampling 55 times/s

Response speed:> 0.2S (depending on the actual usage)

Output current signal: 4-20mA

Precision: <0.1%

Communication Interface: HART communication protocol

Process connection: G11/2A thread

Flange DN50, DN80, DN100, DN150, DN200, DN250

Process pressure: -0.1-2MPa

Power supply: Power: 24VDC (10%), ripple voltage: 1Vpp

Power consumption: max 22.5mA

Environmental conditions: temperature -40C ~ + 70C

Protection grade: IP67

Anti-explosion: EXia IIC T6

Two-wire connection: power supply and signal output shared two-core shielded cable

Cable entry: 2 M20 * 1.5, or 1/2NPT (cable diameter 5--9mm)

3.High temperature boiler water contact level meter guided wave radar level transmitter Outer Display

4.High temperature boiler water contact level meter guided wave radar level transmitter Model selection

Anti-explosion

P  Standard (non-Ex)

I   Intrinsically Safe (Exia IIC T6 Ga)

D  Intrinsic safety+Exd (Exd ia II CT6 GB)

Sensor/Cable type probe

A  Liquid type/4mm

B  Solid type/6mm

Process connection / Material

G   Screw thread G1A stainless steel

N   Screw thread 1NPT stainless steel

B  Flange DN80 PN16C stainless steel  

C  Flange DN100 PN16C stainless steel  

D  Flange DN150 PN16C stainless steel

E  Flange DN200 PN16C stainless steel  

H  Flange DN250 PN16C stainless steel  

Y  Special custom

Seal/ process temperature

G  High-temperature seal/-40...400C with radiator

Electronics unit

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

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

4   (4 ~ 20) mA / (~ 220) V AC / four-wire

5   (4 ~ 20) mA / (85~ 265) V AC / DC / HART four-wire system

Housing /SAfety grade

L   Aluminum / IP67

G  Aluminum / IP67 Double chamber 

Cable entry

M  M20xl. 5

N  1/2 NPT

Live display/ programming

A  with

X  without

Special custom

Y  Special custom

5.High temperature boiler water contact level meter guided wave radar level transmitter Application


Our Service                                                                               
1.

 Our factory

2.Certifications

 


4.Related Products

the main products are power monitor series and radar level meter series. the level measuring products include 120GHz radar level meter, 26GHz high frequency radar level meter, guided wave radar level meter. these products are widely used in electricity, water, food & beverage, petroleum, petrochemical, coal, chemical, metallurgy industries.