JC703 Coax Guided Wave Level Transmitter

Guided wave radar level meter are a kind of measuring instrument based on the time travel , radar wave are travelling as light speed, the travel time can be transformed into level signal by the electronic parts.

JC703 Coax Guided Wave Level Transmitter 

Guided wave radar level meter are a kind of measuring instrument based on the time travel , radar wave are travelling as light speed , the travel time can be transformed into level signal by the electronic parts . The detector can send the HF pulse and spread along cable , when the pulse meet the level surface , it will be reflected and received by the receptor inside the instruments , then the receptor will transform the distance signal into level signal. This model is for liquid with small dielectric constant.

Features

1) For liquid with relatively lower electric constant , we can use the transmitter with twin rod probes to get good and precise measurement .

It is suitable for measurement of any liquid with dielectric constant no less than 1.6

2) Viscosity of the liquid should be no more than 500cst

3) Maximum measuring range of the transmitter with rod probe is 6 meters .

The measurement cannot be influenced with steam and foams . 

 

Technical Parameter for JC703 Guided Wave Radar Level Transmitter 

Working frequency :     100MHZ-1.8GHZ

Measuring range :       cable type,0-30m;pole type,coaxial-type: 0-6m

Repeatability :           ±3mm

Resolution:             1mm

Sampling :              echo sampling 55 times/s

Response speed :         >0.2S

Output current signal:    4 -20mA

Accuracy :              <0.1%

Communication interface : HART  communication  protocol

Process connection:       G1-1/2  Flange DN50,DN80,DN100,DN150

Process pressure :         – 1-40bar

Power source :           24VDC(±10%), Ripple voltage:1Vpp

Power consumption: max 22.5mA

Environmental Condition:  temperature -40℃~+80℃

Protection Class :          IP68

Explosion-proof degree :    EXiaIICT6

Two-wires connection cable: One two-core shield cable is used for instrument power supply and signal output

Electrical cable entry :      two M20×1.5 or 1/2NPT (cable diameter 5–9mm)

 

Model Selection for JC703 Coax Guided Wave Level Transmitter  

Explosion Proof Approval
P Standard (without approval
I Intrinsically safe (Exia IICT6)
C Intrinsically safe (EXia IICT 6)
G Intrinsically safe+flameproof Approval (Exd ia II CT 6)
Shape of Detecting  /Material /Process temperature
A Coax/Stainless steel 316L
Process Connection /Material
GP (F) Thread  G11/2A
NP (G) Thread 11/2NPT
FA (L) Flange  DN50/PTFE
FX Special design
Seal/Process Temperature
A Viton/(-30 to 150 ) °C
B Kalrez(-40 t0 150)°C
Electronic
B (4-20)mA/Hart 2 wire
C (4-20)mA(22.8-26.4)V DC /Hart 2 wire/4 wire
D (198-242) VAC/Hart 4 wire
Housing /Protection
A Aluminium/IP67
B Plastic/IP66
D Aluminium (2 chamber)/IP67
G Stainless steel 316L/IP 67
Cable Entry
M M20*1.5
N 1/2”NPT
Display /Programming
A Yes
X NO

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