AVI-GW Guided Radar Level Meter

Principle

High frequency microwave pulses travels along the detecting component steel rope or rod and reflects when veaching the product surface. The time from emission to reception is proportional to the distance between the surface and the reference plane on the instrument.

Features

AVI-GW0X equipped with the advanced microprocessor and unique EchoDiscovery echo processing technology can be used in severe ambience.

AVI-GW0X with extremely low emission power can be mounted on various metal or nonmetal vessels, harmless towards the environment and human beings.

There are multiple options available in choosing various process connection and detecting component, which enables AVI-GW0X to be applied in a broad extent of applications, such as high temperature, high pressure, medium with small dielectric constant and etc.

2 Product Overview

AVI-GW01                     AVI-GW02                         AVI-GW03

                                                                                                      
Application:                         Level measurement for             Level measurement for      Level measurement for liquids,

liquids/solids, in severe             liquids/solids, in severe     especially for ones with small

ambience                                 ambience                         dielectric constant, in severe
                                                                                                                                   ambience

Max. Measurement

Range:                                  Rope:30m/Rod:6m                 6m                                    6m

Measurement Accuracy:   ±10mm                                ±10mm                            ±10mm

Process Connection:            G1½A G2A 1½NPT              PTFE flange                      G1½A G2A

Detection Component

Material:                              Stainless Steel PTFE               PTFE                                Stainless Steel /PTFE

Process Pressure:                -0.1～4MPa                           -0.1～1.6MPa                 -0.1～4MPa

Process Temperature:          -40～150℃              -40～150℃           -40～150℃

Signal Output:                      (4～20)mA /HART                 (4～20)mA /HART           (4～20)mA /HART

Power:                                2-Wire (DC24V)                     2-Wire (DC24V)               2-Wire (DC24V)

                                           4-Wire (DC24V/AC220)        4-Wire (DC24V/AC220)   4-Wire (DC24V/AC220)

                                                 AVI-GW04                                AVI-GW05                          AVI-GW06

                                                                                                          
Application:                          Level measurement for             Level measurement for         Level measurement for 
liquids in severe                    liquids,especially in severe        liquids,especially in severe    liquids with small

ambience with high                  ambience with very high        dielectric constant or
                                            temperature/pressure               temperature and pressure     powder
Max. Measurement

Range:                                  Rope:30m/Rod:6m                  Rope:30m/Rod:6m              Rope:30m/Rod:6m
Measurement Accuracy:   ±10mm                                  ±10mm                             ±10mm

Process Connection:            G1½A G2A 1½NPT                G1½A/G2A/1½NPT          G1½A/G2A/1½NPT
Detection Component

Material:                              Stainless Steel 316L/Chinaware Stainless Steel Chinaware   Stainless Steel /PTFE

Process Pressure:                -0.1～4MPa                              Vacuum～40MPa              -0.1～4MPa

Process Temperature:          -40～200℃               -200～400℃          -40～150℃

Signal Output:                      (4～20)mA /HART                   (4～20)mA /HART            (4～20)mA /HART

Power:                                2-Wire (DC24V)                       2-Wire (DC24V)               2-Wire (DC24V)

                                           4-Wire (DC24V/AC220)          4-Wire (DC24V/AC220)   4-Wire (DC24V/AC220)

3 Mounting Requirement

Basic Requirement

Keep in mind that the rope rod is kept away from obstructions within vessel. The obstructions are like ladders, limit switches heating spirals struts and etc Furthermore rope or rods must not intersect the filling streams.

Be cautious during the installation: the level of the measured medium must not be in the blanking zone the mounting location must keep a min distance to the vessel wall the rope or rod is perpendicular to the surface of the measured medium. Local or federal safety instruction must be abided when installation is in explosion hazardous area Aluminium housing is used for intrinsically safe version, which can be used in explosion hazardous areas. The instrument must be connected to ground potential in this situation.

Il lustrations

 

The reference plane is the thread or flange surface

1 Blanking Zone (Menu 1.10)

2 Length (Menu1 9)

3 Max. Measurement Range (Menu1.2)

4 Min. Measurement Range (Menu 1.1)

5 reference plane

Note: The level of the measured medium must not be in either blanking zone.

The best mounting location for a conical vessel with flat top is the center of the vessel s top, as the effective measurement can reach the bottom of vessel.

Socket

Container Extension

Avoid installation with socket if possible, otherwise try to minimize the length of socket . In case of long socket, small vessel or medium with low dielectric constant you are advised to use AVI-GW06.

Rights and Wrongs in Mounting

1 Wrong: The rod/rope is in/above filling stream, which results in  the measurement of filling stream not the target medium.

2 Correct Note: Sun shield or rain-proof is required for outdoor mounting.

Damp-proof

When mounting outdoors humid indoors or on cooling/heating vessels, in order to avoid damp seal rings used on cables should be screwed tight, and the cable must be bended downward outside cable entry, as indicated on the diagram below:

4 Dimension (Unit mm)

Housing 1、2、4 Material PBT AL/316L

Housing 3/5 Two-chamber Material AL/316L



 

AVI-GW01                                                  AVI-GW02

AVI-GW03                                             AVI-GW04

                         

                          AVI-GW05                                                  AVI-GW06
         

5 Selection & Ordering Information

AVI-GW01

Explosion Proof Approval

  1  Standard (without approval)

  2  Intrinsically Safe (Exia ⅡC T6)

  3  Intrinsically Safe+Explosion proof  (Exia ⅡC T6)

Type of detecting component/Material

1        Rope/ 6mm/Stainless Steel316L/PTFE

2        Rope/ 10mm/Stainless Steel316L/PTFE

3        Lengthen PP Rope Stainless Steel 316L

4        Lengthen PP Rod Stainless Steel 316L

5        Lengthen PTFE Rope Stainless Steel 316L

6        Lengthen PTFE Rod Stainless Steel 316L

Z  Special Design

Seal/Process Temperature

  1  G1½A

  2  G2A

  3  1½NPT

Z  Special Design

Seal/Process Temperature

1        Viton/ (-30～150)℃

2        Kalrez /(-40～150)℃

Electronic

1        (4～20)mA /HART  2-Wire

2        (4～20)mA /(22.8～26.4)V DC/HART  4-Wire

3        (198～242)V AC/HART  4-Wire

4        (4～20)mA /(22.8～26.4)V DC/HART  2-Wire

Z  Special Design

Housing/Protection

1        Plastic IP66

2        Aluminium IP67

3        Aluminium (2-chamber) IP67

4        Stainless Steel316L IP67

5        Stainless Steel316L(2-chamber) IP67

Cable Entry

1        M20x1 5

2        ½NPT

Display/Programming

1        No

2        Yes

Rope/rod length

5 digit number（unit:mm）

AVI-GW02

Explosion Proof Approval

  1  Standard (without approval)

  2  Intrinsically Safe (Exia ⅡC T6)

  3  Intrinsically Safe+Explosion proof  (Exia ⅡC T6)

Type of detecting component/Material

1        Rod/Φ6mm/ Stainless Steel 316L

Process Connection/Material

1        DN50 PN1 6 Stainless Steel 316L

2        DN80 PN1 6 Stainless Steel 316L

3        DN100 PN1 6 Stainless Steel 316L

4        DN150 PN1 6 Stainless Steel 316L

Z  Special Design

Seal/Process Temperature

1        (-40～150)℃

Electronic

1        (4～20)mA /HART  2-Wire

2        (4～20)mA /(22.8～26.4)V DC/HART  4-Wire

3        (198～242)V AC/HART  4-Wire

4        (4～20)mA /(22.8～26.4)V DC/HART  2-Wire

Z  Special Design

Housing/Protection

1        Plastic IP66

2        Aluminium IP67

3        Aluminium (2-chamber) IP67

4        Stainless Steel316L IP67

5        Stainless Steel316L(2-chamber) IP67

Cable Entry

1        M20x1 5

2        ½NPT

Display/Programming

1        No

2        Yes

Rope/rod length

5 digit number（unit:mm）

AVI-GW03

Explosion Proof Approval

  1  Standard (without approval)

  2  Intrinsically Safe (Exia ⅡC T6)

  3  Intrinsically Safe+Explosion proof  (Exia ⅡC T6)

Type of detecting component/Material

1        Cosx/Stainless Steel 316L

Process Connection/Material

1        Thread G1½A

2        Thread G2A

3        Thread 1½NPT

Z  Special Design

Seal/Process Temperature

1  Viton /(-30～150)℃

2  Kalrez /(-40～150)℃

Electronic

1        (4～20)mA /HART  2-Wire

2        (4～20)mA /(22.8～26.4)V DC/HART  4-Wire

3        (198～242)V AC/HART  4-Wire

4        (4～20)mA /(22.8～26.4)V DC/HART  2-Wire

Z  Special Design

Housing/Protection

1        Plastic IP66

2        Aluminium IP67

3        Aluminium (2-chamber) IP67

4        Stainless Steel316L IP67

5        Stainless Steel316L(2-chamber) IP67

Cable Entry

1        M20x1 5

2        ½NPT

Display/Programming

1        No

2        Yes

Rope/rod length

5 digit number（unit:mm）

AVI-GW04

Explosion Proof Approval

  1  Standard (without approval)

  2  Intrinsically Safe (Exia ⅡC T6)

  3  Intrinsically Safe+Explosion proof  (Exia ⅡC T6)

Type of detecting /Material/Process Temperature

1  Rope Stainless Steel 316L/PTFE

2  Rod Stainless Steel 316L/PTFE

3  Lengthen PP Rope Stainless Steel 316L

4  Lengthen PP Rod Stainless Steel 316L

5  Lengthen PTFE Rope Stainless Steel 316L

6  Lengthen PTFE Rod Stainless Steel 316L

Z  Special Design

Process Connection/Material

1        Thread G1½A

2        Thread G2A

3        Thread 1½NPT

Z  Special Design

Seal/Process Temperature

1  Viton /(-30～150)℃

2  Kalrez /(-40～150)℃

Electronic

1        (4～20)mA /HART  2-Wire

2        (4～20)mA /(22.8～26.4)V DC/HART  4-Wire

3        (198～242)V AC/HART  4-Wire

4        (4～20)mA /(22.8～26.4)V DC/HART  2-Wire

Z  Special Design

Housing/Protection

1        Plastic IP66

2        Aluminium IP67

3        Aluminium (2-chamber) IP67

4        Stainless Steel316L IP67

5        Stainless Steel316L(2-chamber) IP67

Cable Entry

1        M20x1 5

2        ½NPT

Display/Programming

1        No

2        Yes

Rope/rod length

5 digit number（unit:mm）

AVI-GW05

Explosion Proof Approval

  1  Standard (without approval)

  2  Intrinsically Safe (Exia ⅡC T6)

  3  Intrinsically Safe+Explosion proof  (Exia ⅡC T6)

Type of detecting component/Material

1  Rope Stainless Steel316L/Ceramic

2  Rod Stainless Steel316L/Ceramic

Process Connection/Material

1        Thread G1½A

2        Thread G2A

3        Thread 1½NPT

Z  Special Design

Electronic

1        (4～20)mA /HART  2-Wire

2        (4～20)mA /(22.8～26.4)V DC/HART  4-Wire

3        (198～242)V AC/HART  4-Wire

4        (4～20)mA /(22.8～26.4)V DC/HART  2-Wire

Z  Special Design

Housing/Protection

1        Plastic IP66

2        Aluminium IP67

3        Aluminium (2-chamber) IP67

4        Stainless Steel316L IP67

5        Stainless Steel316L(2-chamber) IP67

Cable Entry

1        M20x1 5

2        ½NPT

Display/Programming

1        No

2        Yes

Rope/rod length

5 digit number（unit:mm）

AVI-GW06

Explosion Proof Approval

  1  Standard (without approval)

  2  Intrinsically Safe (Exia ⅡC T6)

  3  Intrinsically Safe+Explosion proof  (Exia ⅡC T6)

Type of detecting component/Material

1        Rope Stainless Steel 316L PTFE

2        Rod Stainless Steel 316L PTFE

Process Connection/Material

1  Thread G1½A

2  Thread G2A

3  Thread 1½NPT

Z  Special Design

Electronic

1        (4～20)mA /HART  2-Wire

2        (4～20)mA /(22.8～26.4)V DC/HART  4-Wire

3        (198～242)V AC/HART  4-Wire

4        (4～20)mA /(22.8～26.4)V DC/HART  2-Wire

Z  Special Design

Housing/Protection

1        Plastic IP66

2        Aluminium IP67

3        Aluminium (2-chamber) IP67

4        Stainless Steel316L IP67

5        Stainless Steel316L(2-chamber) IP67

Process Temperature

1        (-200～400)℃/(Vacuum～4)MPa

2        (-200～400)℃/(Vacuum～40)MPa

Cable Entry

1        M20x1 5

2        ½NPT

Display/Programming

1        No

2        Yes

Rope/rod length

5 digit number（unit:mm）