5.Definitionofcase installation direction

\blacktriangle If the case is installd on the right side of the displacer measuring chamber,it is right-mounted.The torque tube rotates clockwise when the liquid level rises.
\blacktriangle If the case is installed on the left side of the displacer measuring chamber,it is left-mounted.The torque tube rotates counterclockwise when the liquid level rises.

6.Structural size

A:side-top mounted B:top-bottom mounted C:side-side mounted

D: bottom-side mounted E: top-mounted

F: inverted

S:top-bottom mounted

7.TableofMFTmodel

MGP Glass Plate Level Gauge

1. Measuring principle

MGP glass plate level gauge has transparent type,reflective type and sight glass type.The level gauge mainly consists of liquid level gauge,steam side valve,liquid side valve,blow-down valve (or drain plug), exhaust valve (ordrain plug),safetysteel ball,etc.When the glassplate breaks suddenly,ifthe steam-liquid side pressure is not lower than 0 . 3 \ { M P a } ,the steel ball in the valve would be automatically closed to prevent the medium from spraying out (slow dripping is allowed),so as to be convenient for manually disconnectionof the root valve ofthe level gauge for treatment.The level gauge has theadvantages offirm structure,reliable sealing, simple installation,available LED lightsourceand convenientobservation.Itisan ideal meter forobserving the liquid level in various high,medium and low pressure containers.

The steam-liquid side connecting flanges of the level gauge are respectively connected with the steam-liquid side flanges of thecontainer to form acommunicating vessel to observe the liquid level directly.

MGP glass plate level gauges are manufactured according to HG 21588-95.

2.Product features

\blacktriangle Simple structure and easy installation;
\spadesuit Automatic protection,safe and reliable;
\blacktriangle LED display,convenient for observation;
\bullet Debugging-free.

3.Application industries

\blacktriangle Power plant Water tank,waste gas purification tank,oil tank,etc. Crude oil or refined oil tank,three-phase separator,settling tank,sewage
\blacktriangle Oil field tank (pool),etc.
\blacktriangle Chemical Distillation tower,ammonia tank,toxic liquid tank,etc.
\blacktriangle Water and water Water tank,sewage pool,water treatment tank,clarifier,digestion tower, treatment etc.
\blacktriangle Others Food,pharmaceutical,environmental protection,paper making and other industries

4. Technical parameters

5.Outline structure

5.1. Transparent type, reflective type glass plate level gauges

Note:The transparent type level gauges can be supplied with LED light sources to be convenient to observation of liquid level at night. Transparent type (T):The level gauge has a transparent glass and a gland before and after,so that light can pass through. Reflective (R):The level gauge has a transparent glass and a gland before,and a closed back,so that the light cannot pass through.

5.2. Sight glass plate level gauge

Hubbed type

Embedded type

Note:The length of the level gauge can be made according to user requirements.

6. Table for models of MGP transparent type and reflective type

■Typical model: MGPBT6.3IN0600VX

7. Table for models of MGP sight glasses

MS Magnetostrictive Level Transmitter

1. Measuring principle

Substances expand when heated and contract when cooled Exceptfor heating,magnetic fieldsand electric fields can also lead to the size elongationor shortening of objects.The size of feromagnetic substance is extended(orshortened) under theactionofan externalmagnetic fieldand restores to itsoriginallengthafter the external magnetic field is removed.This phenomenon is called magnetostrictive phenomenon (or effect).

Based on the magnetostrictive principle,a magnetostrictive wire with one end connected with a sensor is installd in the nonmagnetic probe.The main electronic control unit sends an electromagnetic narrow pulse to the magnetostrictive line.The electromagnetic pulse is conducted along the magnetostrictive line.When the magnetic field generatedby the pulse interacts with themagnetic field generated bythemagnet in the floatofthe marked liquid level/interface,a torsional stress wave is generatedon the magnetostrictive line,which will return to the above sensor along the magnetostrictive line.The sensor will capture the return wave and convert it into an electronic pulse signal and send it back to the main electronic controlunit.The main electronic control unit accurately measures the time interval between the transmited pulse and the return pulse through the precision circuit,and calculates the position of the float,that is,the height of the liquid level or interface.

2.Product features

\blacktriangle Multifunction The liquid level and interface position can be measured independently or simultaneously.
\blacktriangle High accuracy The measuring accuracy can reach ± 1 {mm } to the minimum.
\blacktriangle Wide range of application Flexible and diversified installation methods
\blacktriangle Output mode Support field indication and remote electrical output
\blacktriangle Split installation Support split installation

3.Application industries

\blacktriangle Power plant Water tank,waste gas purification tank,oil tank,etc.
\blacktriangle Oil field Crude oil or refined oil tank,three-phase separator,settling tank,sewage tank (pool),etc.
\blacktriangle Petrochemical industry Oil pipeline,liquefied gas tank,ammonia tank,oil refinery depot,gas station storage tank, etc.
\blacktriangle Chemical Distillation tower,ammonia tank,toxic liquid tank,etc.
\blacktriangle Water and water Water tank,sewage pool,water treatment tank,clarifier,digestion tower, treatment etc.
\spadesuit Others Food,pharmaceutical,environmental protection,paper making and other industries

4.Technicalcharacteristics

5. Installation guide

5.1. Rod probe

Rod probes with different floats can be used to measure liquid level or interface,with a maximum length of 4 ~ { m } Double floats can be used to measure liquid level and interface at the same time.

6.Cable probe

Cable probes with diffrent floats can be used to measure liquid level or interface,with a maximum length of 2 0 ~ { m }

7.TableofMS model

Special notes:

Typicalmodel1:MS13CBB2X10B1200DATA 1Typicalmodel2:MS22PBB2D10B0200CCFB-AEMABX ■Note:The medium density shall be indicated after model selection.

MTPInputHydrostaticLevel Transmitter

1. Measuring principle

MTP input hydrostatic level transmitter converts the change of material (liquid） level into linear 4 { m A } { - } 2 0 { m A } DC standard signal based on the linear change rule of liquid level,density and pressure and output the signal.With imported high stability sensors and integrating temperature compensation and corction technology,the level transmitter has good anti-disturbance property,reliability and excellent stability.

2. Application of product

MTP input hydrostatic level transmitter can be widely used for liquid level measurement of media under normalpressureintheindustrieselatedtooil,stel,metallurgy,oilfelds,chemicals,thermalpowerplants,light industry,sewage treatment,dam water level, deep well, etc.

3. Product features

\blacktriangle Strong anti-disturbance property,stable and reliable running;
\blacktriangle Lightning protection design;
\bullet Special application design can be provided.

4.Technicalcharacteristics

\blacktriangle Measurement range: 0 { m } { ~ } 2 0 0 { m } (cable type), 0 { m } { ~ } 5 { m } (rod type)
\blacktriangle Measurement accuracy: class 0.5
\blacktriangle Output signal: 4 { m A } { ~ } 2 0 { m A } （204号
\blacktriangle Load resistance: 0 \Omega { ~ } 5 0 0 \Omega
\blacktriangle Transmission distance: 1 { , } 0 0 0 {mm }
\blacktriangle Operating power supply: 24V DC
\spadesuit Working temperature: - 5 0 ^ { \circ } { C } { ~ } 8 0 ^ { \circ } { C } - 5 0 ^ { \circ } { C } { ~ } 1 5 0 ^ { \circ } { C } (for static rod type only)
\blacktriangle Ambient temperature: Normal temperature working conditions: - 4 0 ^ { \circ } { C } { ~ } 5 0 ^ { \circ } { C } ,low-temperature working conditions: - 6 0 ^ { \circ } { C } { ~ } 8 0 ^ { \circ } { C } and LCD screen : - 3 0 ^ { \circ } { C } ~ 8 0 ^ { \circ } { C } (see the Explosion Protection Certificate for ambient temperature of explosion-proof products)
\blacktriangle Relative moisture: { <= } 8 5 % Materials of wet parts: stainless steel,polypropylene,PTFE
\blacktriangle Installation method: 1.Installation with flange: Min.flange size DN32 (HG/T 20592-2009) 2.Threaded mounting:G2" thread
\blacktriangle Safety certificate: CNEX intrinsic safety type \operatorname { E x } ia IIC T6 Ga; EAC intrinsic safety type OEx ia IIC T6...T1 Ga X

5.Instrument dimension

6. Wiring mode

Without wiring of instrument housing

With wiring of instrument housing

Gas conduction cable

Safety barrier 24V power 4\~20mA supply or distributor Safe barrier is Display 面 nor-mtnsa 4\~20mAinstrpLent or explosion-proof environment

7. Schematic diagram for installation

8.TableofMTPmodel

MBK Magnetic Float and DisplacerLevel Controller

1. Measuring principle

MBK magnetic float and displacer level controller is composed of reed pipe and magnetic float.Based on the principle of buoyancy,the floating ballwith amagneticcomponent is used to drive thereed pipe of each corresponding position in the measuring cylinder to close oropen along with the riseand fallof the liquid level, thus detecting and controlling the statesof the liquid level.This series is mainly classified into:MBKS basic top-mounted type,MBKL basic side-mounted type,MBKTdisplacer type,MBKC direct-insertion type magnetic float level controller.

MBK magnetic float and displacer level controller can beequipped with 8 switches at most for the detection of 8 points.The magnetic float level controller is not in direct contact with the medium to be measured during operation.The contacts have no mechanical abrasion,and can work without external power supply.

2.Product features

\blacktriangle External power supply is not required and the output contacts are passive;
\blacktriangle Featured with long service life，stable and reliable running and easy instalation，it isalmost maintenance-free;
\spadesuit { N o } influence by the physical and chemical state of the measured medium. Such as:Influence of conductivity,dielectric constant,foam, pressure,temperature,evaporation,bubble,etc.;
\blacktriangle Meters of corresponding materials can be used in all kinds of adverse environments with medium density { >= } 0 . 5 \ { g } / {cm } ^ { 3 } ：
\blacktriangle Interface measurement with two media of different density;
\blacktriangle Explosion-proof structure design for explosive environment;
\blacktriangle Special application design can be provided.

3.Technicalcharacteristics

\blacktriangle Contact type:AO --- normally open type (250VAC, 0.5A,20W,resistive) AC---normallyclosed type (250VAC,0.5A,20W,resistive) BO --- normally open type (250VAC,2.0A,200W,resistive) BC -- normally closed type (250VAC,2.0A,200W,resistive) C --- switching type (250VAC,1.0A,60W,resistive)

Note:The above-mentioned voltage,current and power are all their maximum values.The product of switching voltage and switching current should be less than the switching power.

\spadesuit Maximum switching frequency: <= 1 x 1 0 ^ { 9 } times
\blacktriangle Switching error: <= ± 1 0 {mm } （204号
\blacktriangle Minimum distance between switches: 5 0 {mm }
\bullet Transmission distance: { \tt > } 2 , 0 0 0 { { m } } （204号
\blacktriangle Operating power supply:requiring no external power supply
\blacktriangle Working temperature: { <= } 8 0 ^ { \circ } { C } \le 1 2 0 ^ { \circ } { C } \le 1 5 0 ^ { \circ } { C } （204号
\blacktriangle Ambient temperature:Normal temperature working conditions 4 0 ^ { \circ } { C } { ~ } 8 5 ^ { \circ } { C } ,low-temperature working conditions - 6 0 ^ { \circ } { C } { ~ } 8 0 ^ { \circ } { C } (see the Explosion Protection Certificate for ambient temperature of explosion-proof products)
\blacktriangle Medium density: { \ge } 0 . 5 { g } / {cm } ^ { 3 } （204号
\bullet Nominal pressure: { P N } 2 . 5 { - } { P N } 1 6 0 ( {kg } { f } / {cm } ^ { 2 } ) (up to { P N } 3 2 0 {kg f } / {cm } ^ { 2 } in special cases)
\bullet Float diameter: \mathbf { 0 } 2 8 {mm } \mathbf { - } \mathbf { δ } 1 2 0 {mm } (determined by pressure and density)
\spadesuit Installation method: flange: DN32-DN150 (HG/T 20592-2009) G3/8"thread (upward installation) G1/2"thread (upward installation) G1-1/2" thread (downward installation) G2"thread (downward installation)
\blacktriangle Electrical interface: \mathbf { M } 2 0 { x } 1 . 5 female threador1/2"NPT female thread
\spadesuit Nonperpendicularity of installation: <= ± 2 5 ^ { \circ } （20
\bullet Ingress protection: IP65
\blacktriangle Explosion proof: CNEX flameproof type Ex db IIC T6 Gb EAC flameproof type 1Exdb IIC T6 Gb X

4. Schematic diagram for installation

5. Technical parameters

5.1.MBKS,MBKL magnetic float basic level controller

5.2.MBKT magnetic displacer level controller

5.3.MBKC magnetic float direct-insertion level controller

6. Parameters of MBKS and MBKL floats 6.1.Cylindricalfloat

Critical medium density when 8 5 % (volume) float is soaked in the medium (minimum medium density)

Standard medium density when 5 0 % (volume） float is soaked in the medium

6.2.Spherical float

6.3. Table of parameters

Critical medium density when 8 5 % (volume） float is soaked in the medium (minimum medium density)

Standard medium density when 5 0 % (volume） float is soaked in the medium

Notes:1.Float specifications can be specially ordered according to actual conditions.Ifthe medium density is less than 0 . 5 { g } / {cm } ^ { 3 } ,special orderscan be placed; 2．Titanium aloy,polytetrafluoroethylene and polypropylene floats are allcylindrical floats,while the others are cylindrical or spherical floats; 3．The data in the above-mentioned table are for reference only.Manufacturers are allowed to change the structural type and size of floats according to the difference of operating pressure and medium density.

7. Type of junction box

8. External wiring diagram

Level detection Interface detection Cp14\~20A Safe barrier 4\~20mA 24vr C12inal Safe barrier 4\~20mA 24vr Safe barrier is removed in Display Safe barrier is removed in Display non-intrinsically safe instrument or non-intrinsically safe instrument or explosion-proof PLC explosion-proof PLC environment environment

9. Internal wiring diagram

9.1. Normally open type, normally closed type

Note:1."X" value varies with density and pressure; 2.If the switch position and state are as required by the users,the manufacturer may change the position of positioning ring.

11.TableofMBKSandMBKLmodels

12.TableofMBKTModel

13.TableofMBKCmodel

RASRFAdmittanceLevelSwitch

1. Measuring principle

RASRF admittance level switch consists of a measuring pole,a shaded pole and an earthing pole (the threaded part).When the measuring pole is covered by the material the admittance value will increase,thus the instrument sends switch signal or alarm current signal.The shielded pole is located between measuring pole and earth pole. Its signal waveform is identical with that of the measuring pole.The earth pole is completely isolated from the measuring pole.

When material attaches to the probe,variation of admittance between the measuring pole and the earth pole can be restrained.Meanwhile,only the variation of admittance between the measuring pole and the wall of the container can be sensed so as to eliminate the incorrect signal as the result of the material attached.

2.Product features

\blacktriangle Highly-universal: Beable to measure the levelof liquid and material and extensively applicable to flying ash,particulates,powder,liquid,ropiness,conductivity,non-conducting material;be able to measure under varied temperatures,pressures and with varied media as well as be applicable to harsh sites with corrosion, impact and others;
\bullet Anti-buildupof material:The circuit is designed uniquely to allow the measuring circuit to ignore the material adhered to the probe and allow for automatic correction;
\bullet Maintenance-free:There is no mobile component during measuring.There is also no problem such as mechanical damage.It is free from maintenance;
\bullet Anti-disturbance: It supports contacting measurement and has high capacity of resisting disturbance.It can overcome the impact from steam,foam and stirring;
\bullet Simple installation: The meter can be installed with thread or flange in a simple,easy and quick way.

3.Application industries

RFAdmittance Level Switch is widely used.Its typical applications are:

\blacktriangle Liquid: conductive liquid and insulating liquid (industries: chemical industry,oil field, water and sewage treatment)
\blacktriangle Slurry: conductive slurry and insulating slurry (industries: papermaking,pharmacy,water and sewage treatment)
\spadesuit Powder: cement,flying ash,etc.(industries: power plant, metallurgy,cement)
\bullet Particulates:coal,cereal,fodder,plastic particulates,etc.(industry: power plant,metallurgy,cereal)

4.Technicalcharacteristics

Operating voltage ·18V\~36V DC (output ripple less than 1 0 0 { m V p - p ) } ·90V\~265V AC 50/60Hz
+ Power consumption · <0.8W@24V DC · <5VA@240V AC
Output ·DPDT relay output ·8mA/l6mA two-wire output
Relay contact capacity · 5A/250V AC
Alarm delay ·Adjustable within 0-20s
Measurement range ·1-3300pF
Resolution ·0.01pF
Electrical accuracy ·0.05pF
Stability · 0 . 0 1 % / ^ { \circ } { C } （2
\* Max. process pressure · 63kgf/cm²
Process temperature · - 4 0 ^ { \circ } { C } { ~ } 1 , 2 0 0 ^ { \circ } { C } (it can be customized if process temperature is higher than （204号 2 3 0 ^ { \circ } { C } )
Process connection ·Installation with thread or flange
Load capacity · { \le } 5 1 { { N m } } (transverse load capacity of normal temperature type RF admittance) · <= 2 1 5 { { N m } } (transverse load capacity of high temperature type RF admittance) · { \le } 2 0 { k N } (dragging force of wirerope type RF admitance)
Ambient temperature ·Normal temperature working conditions- 4 0 ^ { \circ } { C } { ~ } 8 0 ^ { \circ } { C } ，low-temperature working conditions - 6 0 ^ { \circ } { C } { ~ } 8 0 ^ { \circ } { C } (see the Explosion Protection Certificate for ambient temperature of explosion-proof products)
Case protection class ·IP66/IP67
Safety certification ·Intrinsic safety and explosion proof type Ex ia IIC T2...T4 Ga information · Intrinsic safety and dust explosion proof type Ex ia IIIC \Gamma _ { 2 0 0 } ~ 1 3 5 ^ { \circ } { C } . . . { T } ~ 2 0 0 （204号 3 0 0 ^ { \circ } { C } Da ·Complex explosion proof type Ex ia/db IIC T2...T4 Ga/Gb ·Complex dust explosion proof type Ex ia/tb IIC T200 1 3 5 ^ { \circ } { C } . . . { T } _ { 2 0 0 } （204号 3 0 0 ^ { \circ } { C } / { T } 1 3 5 ^ { \circ } { C } { I } Da/Db ·EAC: Intrinsic safety and explosion Proof OEx ia IIC T4..T2 Ga X ·EAC:Intrinsic safety and dust explosion proof type Ex ia IIIC { T } _ { 2 0 0 } 1 3 5 ^ { \circ } { C } . . . { T } _ { 2 0 0 } 3 0 0 ^ { \circ } { C } Da X ·EAC:Complex explosion proof type 0/1Ex i/db IIC T4...T2 Ga/Gb X ·EAC: ComplexdustexplosionprooftypeExia/tb IIIC （204号 { T _ { 2 0 0 } 1 3 5 ^ { \circ } C . . . T _ { 2 0 0 } 3 0 0 ^ { \circ } C / T 1 3 5 ^ { \circ } C { D a } / D b X } （204号
Cable entry · 2 \ : { M } 2 0 { x } 1 . 5 or 1/2"NPT thread inlet (non-flameproof type:outer diameter of cable limited to 6 { {mm } { ~ } 1 2 { {mm } } } ， flameproof type:outer diameterof cable limited to 8 {mm } { ~ } 1 2 {mm } 0

5. Installation guide

5.1.Selection of installing position

The meter can be installed at top,on the side and at the bottom as shown in the figure below:

4 ① ’and " ④ ) { 4 } ’are high temperature probes.During installation,ensure that the ambient air is circulated to ensure the proper radiation of the hot extended part of the meter; \bullet \bullet \underline { { \oslash } } "probe represents an improper installation which gets excessively closer to the wall and top of the container.Thus,this can affect the sensitivity of the probe and generate build-up of material between the probe and the wall of container; 4 ③ "probe represents an improper installation where the measuring pole does not reach out of the standpipe.It is highly possible that material may accumulate between the shaded poleand the standpipe and thus the meter can't make proper measurement.The shaded pole should reach out of the standpipe over 5 0 {mm }

5.2.Attentions for installation

Feed:

The probe should be installed where it is far away from the feed inlet,so as to reduce effect of build-up of material and impact and avoid wrong action.

\blacktriangle Distance to the container wall:

Install the probe ata point far away from the wall of the container so as to prevent the rob probe or cable probe from contacting the wall and thus to avoid forming an enclosed space and accumulating material over time.

\blacktriangle Installation in short pipe:

Ensure the length of the shielded pole≥(height of standpipe +thickness of tank wall + 5 0 {mm } ）

\blacktriangle Installation at top:

Make sure of an adequate distance between the probe and the wall of container Avoid forming an enclosed space and accumulating material over time.To use a cable probe,make sure of an adequate distance from the probe to the wall of container to avoid accumulating material over time.

\blacktriangle Side installation:

The probe should be installed with a downward inclination of 3 0 ^ { \circ } { ~ } 4 5 ^ { \circ } degrees.A protective plate should be used to ensure that the probe is not affected by the impact from the falling material.

\blacktriangle Installation at the bottom:

It is not recommended to install the instrument at the bottom of the container.The instrument can be installed at the bottom onlywhenmaterial doesn't accumulate.

\blacktriangle Installation on tank:

When the tank is made of metal,the earth terminal on the housing should be connected with the container; If the tank is non-metallic,the earth terminal of the enclosure should be grounded.

6.Structural size

6.1.Metersize

Common type Corrosion resistance/insulating

Wirerope type

High temperature type

6.2. Size of welding seat

Height of welding seat 2 0 {mm } ,HSorHC

Heightof welding seat 8 0 {mm } ,HAorHD

Note:thread X should be machined as required.

7.TableofRAS model

Special notes:

1Typicalmodel1:RASSSB4XAPB050XDATA \overline { a } Typical model2:RASSSB4XAPB050XDAFB-BEBAAX

Special model: if specialselection is required foracertain digit in the model code,fill"Z"in thespaceof special model in the model code,and ^ { 6 6 } / Z ^ { 3 } behind the complete model code; If special accessory is required,please fill"/Z"behind the complete modelcode.Then,explain all the "digit for special model" and special accessories in words without omission.The text description should be placed in brackets "()". Before each description, " { Z n } ” \mathbf { \bar { n } } = 1 ,2,3,...) should be used for guidance and each description should be separated by semicolon";".When the specification code has multiple digits,the last digit will be changed to "Z".For example,"TA"will be changed to "TZ".

1Example of special model:RASLSB4XAPZ080XDAFB-BEBAAX/Z (Z1:length of the shielded pole 50cm)

VS Tuning Fork Level Switch

1. Measuring principle

VS tuning fork level switch is a universal level limit switch.The stainless steel tuning fork vibrates at resonant frequencyunder the excitation of piezoelectric ceramics.The vibration frequency and amplitude of the tuning fork would change when the fork comes into contact with the materialsand is gradually sunk into the materials.These changes are detected and processed by the electronic unit,which subsequently outputs a switch signal for indication or control.

2. Product features

\blacktriangle High adaptability:Varied electric parameters and densities of the materials under measurement do not have any efect on the measuring.Such harsh conditions as scaling,stirring,turbulence,air bubble, vibration,medium viscosity,high temperature,high pressure and others do not have any effect on the detection;
\blacktriangle Maintenance-free:As the detection is performed by electronic circuit and tuning fork level switch is composed of immobile parts,the tuning fork level switch is free from maintenance once it is installd and put into operation;
\blacktriangle Adjusting-free:As the detection is free from the effect of electric parameters and density of the medium to be measured,on-site adjustment is not required for whichever liquid is to be measured;

3.Application industries

The tuning fork switch is usually used together with the level meter to control level control.

It mainlyaims at the detection of powder and small particle materials with a wide rangeof density,such as the blockage detection of the inlet and outlet pipes of the dustcollector,the material level measurement of the flue-dustretainerofthe dustcolector,andthe limit measurementof plastic,rubber powder,flour,various grains, foodand chemical products.It also aims at the limit measurement of liquid of various characters,such as pasty, sticky,foamy and corrosive medium.

4.Technicalcharacteristics

5. Installation guide

5.1.Selection of installing position

The meter can be installed at top,on the side and at the bottom as shown in the figure below:

\bullet * { 1 } ^ { , } is high temperature probe which is applicable to the site with high temperature that ranges from （204号 - 4 0 ^ { \circ } { C } { ~ } 2 5 0 ^ { \circ } { C } .During installation of high temperature probe,ensure that the ambient air is circulated to ensure the proper radiation of the hot extended part of the meter;
\blacktriangle 4 ② "probe represents an improper installation which gets excessively closer to the wall and top of the container.It is likely to generate build-up of material between the probe and the wallof container,as a result, the meter cannot measure properly;
\blacktriangle 4 ③ ”probe representsan improper installation,the fork is not extended out ofthe standpipe.It is likely to come into contact with the standpipe wallor tank wall,and the material might be accumulated between the fork,as a result,the meter cannot measure properly;

5.2.Attentions for installation

\blacktriangle Disturbance from feed:The probe should be installed far awayfrom the feed inlet,so as to reduce effect of material impact and avoid wrong action due to material flow.

\blacktriangle Disturbance from wall of container: The probe should be installed far away from the container wall to prevent the fork from coming into contact with the container wall after extending into the container and avoid build-up of material between the fork and the container wall over time.

\blacktriangle Installation in standpipe:Make sure that the fork would not come into contact with the mounting standpipe after entering (see the right figure).

\spadesuit Installation at top:Make sure of an adequate distance from the probe to the container wall to avoid accumulating material over time.To use a cable probe,make sure of an adequate distance from the fork to the wall of container to avoid accumulating material over time.
\bullet Installation on the side:The probe should be installed with a downward inclination of 30to 45 degrees.A protective plate should be mounted to ensure that the probe is not affected by the impact from the falling material.
\blacktriangle Installation at the botom: It is not recommended to install the meterat the bottom.The instrument can be installed at the bottom only when material doesn'taccumulate.
\blacktriangle When there is a severe dynamic load on the site (liquid tuning fork):vibration from agitation equipment or the equipment may cause the liquid tuning fork switch to be subject to a large side force.Therefore,do not choose an extension pipe that is too long.A tuning fork switch might be installd on the side.If a long extension pipe cannot be avoided,it can be secured by installing a suitable stay bar under the extension tube.You mayalso make a special request to weld a protective sleeve under the flange for protection. See the figure below.

6.Structural size

6.1.Metersize

Standard liquid tuning fork

Standard vibrating rod

Standard solid tuning fork

Extended liquid tuning fork

Extended solid tuning fork

Extended vibrating rod

Cable type solid tuning fork

6.2. Size of welding seat

Height of welding seat 2 0 {mm } ,HSorHC

Note: thread X should be machined as required.

Cable type vibrating rod

Height ofweldingseat 8 0 {mm } ,HAorHD

7.TableofVSmodel

Special notes:

\blacktriangledown Typical model1:VSPSB4XAP020DMTB \mathbf { δ } _ { \mathbf { u } } Typical model2:VSPSB4XAP020DMFB-BECAAX \bigstar Special model: if special selection is required foracertain digit in the model code,fill“Z"in the space of special model in the model code,and ‘ * / Z ^ { , , } behind the complete model code; If special accessory is required, please fill " / Z " behind the complete model code.Then,explain all the "digit for special model" and special accessories in words without omisson.The text description should be placed in brackets "()". Before each description, "Zn:" ( \mathfrak { n } = 1 , 2 , 3 , \dots ) should be used for guidance and each description should be separated by semicolon";".When the specification code has multiple digits,the last digit will be changed to "Z".For example,"TA"will be changed to "TZ".

1Example of special model: VSPSB4XAP020DMFB-ZEHZAX/Z (Z1: GB/T 9124.1-2019; Z2: T sealing face)

RS Rotary Paddle Level Switch (Solid)

1. Measuring principle

RS rotary paddle level switch's synchronous motor drives the spindle and paddle through the reduction gear. When thesolid material to be measured contacts or covers the paddle,therotationof the blade is blocked,the resistance is transmited to the detector inside the meter through the spindle,and the detectoroutputs a switch signalto theoutsideand cuts offthe power supply of the motor to stop the paddle.The resistance of the paddle disappears when the materials leave.Thedetectorrestores to the original state by virtue of the spring tension and the paddle restores rotation.The rotary paddle level switch can measure material of wide specific gravity by adjusting the spring tension.Increase the spring tension in case of large specific gravity;otherwise reduce the spring force.

2.Productfeatures

\blacktriangle Supported by bearingwhich offers more reliable operation;
\blacktriangle Ingenious sealing design which keeps dust from penetrating along the shaft
\blacktriangle Adjustable steady and reliable torque
\blacktriangle The clutch starts to slip to prevent the motor from being damaged in case the paddle is overloaded \blacktriangle It is not necessary to remove the whole meter away from the site when the internal components need to be checked or maintained
\blacktriangle IP65 design of excellent sealing property offers reliable outdoor installation and usage

3.Application industries

\blacktriangle Plastic industry:dust,particle,grain cluster, etc.
\blacktriangle Building industry: limestone, foamed polystyrene,molding sand,urea,cement, gypsum,magnetite \blacktriangle Food industry:milk powder,flour,salt,bran,minerals,herbs,rice
\blacktriangle Paper/pulp industry:wood,sawdust, etc.
\blacktriangle Chemical industry:rubber,coating,foam
\blacktriangle Iron and steel industry: iron ore,coal,coke,sand