Special notes:

Typical model1: MPS5200S0SB21X3CDMFB-WBGCFAX Typical model 2: MPS5200L0SB21D3XDMGM

Special model: if special selection is required for a certain digit in the model code, fill Z' in the space of 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 model code. 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, "FB" will be changed to "FZ".
Example of special model: MPS5200S1SB21X3CDMFB-WBGCFAX/Z (Z1: separately equipped with stainless steel number plate; Z2: equipped with \mathbf { M } 2 0 { x } 1 . 5 adapter 3/4" NPT cable adapter)
Tank-side cable: If tank-side indicator is optional, the standard configuration contains a communication cable of 2 5 { m } Any excess is priced in meters.

8. Table of MPS5300 model

Special notes:

Typical model : MPS5300L0SB21X3ADMFB-BGCAAX

Special model: if special selection is required for a certain 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 omission. The text description should be placed in brackets " ( ) " Before each description, " { Z n } : ( \mathtt { 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, "FB" will be changed to "FZ".
Example of special mode: MPS5300L0SB22X3APGFB-BJCAAX/Z (Z1: equipped with 3 0 ~ { m } tank-side communication cable)
Tank-side cable: If tank-side indicator is optional, the standard configuration contains a communication cable of 2 5 { m } Any excess is priced in meters.

MPS3ooo Pulse Radar Level Transmitter

1. Overview

1.1. Measuring principle

Based on the time-travel principle, MPs3o00 pulse radar level transmitter is an "emit pulse downward" measurement instrument. It measures the level data by transmitting and receiving micro-power microwave pulses, and its accuracy can reach millimeter level.

When working, it generates a pulse signal superimposed on the 26GHz sine wave signal every 1ns, which is transmitted through the antenna and propagates in space at the speed of light. After the pulse signal touches the surface of the measured medium, part of the energy of the pulse signal will be reflected and then received by the antenna. The microprocessor processes the received signal, and then calculates the level distance based on the principle that the time interval between pulse signal emission and reception is proportional to the distance from the antenna to the surface of the measured medium, that is, Formula (1).

Wherein, { ~ D ~ } is the distance from the measuring
reference surface to the measured medium, C is the
propagation speed of light (electromagnetic wave) in
vacuum, and \Delta t is the time interval between pulse signal transmission and reception.

Then, the level height can be calculated from equation (2) according to the empty material level set by the user.

Wherein, E is the distance from the measuring reference surface to the empty material level set by the user, D is the distance from the measuring reference surface to the measured medium, and L is the level height.

1.2. Product advantages

\blacktriangle With high accuracy and low power consumption, it is a substitute product for level instruments of differential pressure transmitter, magnetostrictive type, radio frequency admittance and magnetic flip type.
\blacktriangle Free from pressure, vacuum, temperature change, inert gas, smoke, steam and other environmental impacts, reliable measurement results.
\blacktriangle With two CPUs, it has stronger processing ability, more intelligent algorithm and more stable system.
\blacktriangle With double-chamber housing, it has a housing protection class at IP66 and IP 67.
\blacktriangle With special handheld communicator, it can realize remote debugging and diagnosis.
\spadesuit With inherent anti-surge protector, it meets the level-4 electromagnetic compatibility.
\blacktriangle It can also display the wave type on site and create false echo.
\spadesuit It is suitable for high-temperature working conditions, and the design temperature can reach 3 5 0 ^ { \circ } { C } when the high-temperature extended antenna is used to purge the heat sink.
\blacktriangle The optional tank-side indicator can reduce the labor intensity and safety risk of meter inspection in bad working conditions and high-risk areas.
\blacktriangle The preset all Chinese operation menu is provided, which has a friendly interface, further reducing the difficulty of meter commissioning.

1.3. Typical application

\blacktriangle Petrochemical industry (oil field, petrochemical plant, oil extraction plant, oil refinery, chemical plant, coking plant, etc.) Media to be measured: crude oil, light oil, natural gas, methanol, ethanol, ammonia, benzene, polystyrene, esters, liquid carbon dioxide, liquid nitrogen, etc.
\blacktriangle Electric power industry (power plant high/low-pressure heater, condenser, etc.) Media to be measured: raw coal bin, powder bin, coal ash bin, chemical water, etc.
\blacktriangle Metallurgy industry (steel works) Media to be measured: limestone, coke and pulverized coal, cold back to min, raw material bin, powder bin, coal ash bin and chemical water, etc.
\blacktriangle Cement industry (cement plant, etc.) Media to be measured: clinker warehouse, powder bin, raw coal bin and chemical water, etc.

2. Technical characteristics

2.1. Technical parameters of MPS3100 and MPS3200

Note: The actual measuring range and accuracy of the meter are affected by antenna size, medium reflectivity, installation position and possible interference reflection. ± 3 {mm } is the highest precision of this series of meters under the standard conditions in the laboratory.

2.3. Antenna specification

2.4. Meter flange

3. Structural size

3.1. Size of meter housing

3.2. Boundary dimension of MPS3100

{ \boldsymbol { o } } 5 0 { {mm } } plastic rod antenna

\scriptstyle 0 6 5 {mm } plastic rod antenna

θ 8 0 {mm } plastic rod antenna

3.3. Boundary dimension of MPS3200

3.4. Boundary dimension of MPS3300

3.5. Boundary dimension of MPS3600

3.6. Boundary dimension of MPS3700

3.7. Boundary dimension of tank-side indicator (optional) 3.7.1. Installation in O80 hoop (installation by default)

3.7.2. Installation in DIN35 guide rail

3.7.3. Base plate for tank-side indicator installation

4. Guide for Selection

MPS3000 pulse radar level transmitter can be used for continuous level measurement of liquid, slurry and solid. The actual measuring range is determined by the antenna size, medium reflectivity, installation position, possible noisy reflection and other factors.

4.1. Medium classification

4.1.1. Liquid

4.2. Measuring range

MPS3100 plastic rod antenna pulse radar is mainly used to measure corrosive liquid, slurry and other media in storage or process tanks, such as water and liquid tanks, acid and alkali tanks and slurry tanks.

MPS3200 horn antenna pulse radar can be widely used to measure the level of storage or process tanks, liquids with certain temperature and pressure, slurry, etc. according to the diffrent sizes of antenna openings. For example: crude oil and light oil tanks, volatile liquid tanks, slurry tanks, etc.

According to the diffrent sizes of antennas, the MPs3300 process seal antenna pulse radar can be widely used to measure the liquid and slurry with strong corrosiveness and complicated working conditions in storage or process tanks, such as water and liquid tanks, acid and alkali tanks and slurry tanks.

MPS3600 pulse radar can be widely used to measure the level of solid in process tanks in a large span according to the different sizes of antenna openings. For example, tanks of blocky, powdery and granular materials.

MPS3700 pulse radar can be widely used to measure the level of solid in proces tanks in a large span according to the different sizes of antenna openings. For example, coke level, slurry tank, solid particles, etc.

4.3. Measuring conditions

The measuring range begins when the beam touches the tank bottom. Especially when the tank has a disc bottom or adopts a conical discharge port the level below this point cannot be measured.

For the medium with low dielectric constant (categories A and B), if the medium is at a low level (in Fig.C on the right), the tank bottom is visible. The measurement in this range will reduce the accuracy, so it is suggested to set the measurement zero point at a distance C from the tank bottom (as shown in the figure).

In theory, the measurement range can reach the terminal of the antenna. In consideration of the influence of corrosion and adhesion, the distance of measuring range should be at least A (as shown in the figure) from terminal to top of antenna. Please pay attention to the phenomenon of condensation especially.

Minimum measuring range B is associated with chosen antenna type (as listed below).

The tank diameter should be greater than D (as shown in the following table) and the tank height should be at least H (as shown in the following table).

4.4. Impact of gaseous phase

When there is steam on the liquid surface, high pressure will slow down the signal transmission speed, which is related to the type of steam, especially in low temperature environment. When the distance between the measurement zero point (at the flange) and the surface of the material increases, the measurement eror caused by this effect increases. The measurement error caused by this effect is as shown in the following table.

4.5. Beam angle

Beam angle means that energy density of radar wave reaches the half of maximum value (3db). The microwave not only can scatter to the area beyond beam angle, but also can be reflected by interference. The diameter of Beam width (W) is antenna type (beam angle ) and the function of measuring distance (D).

5. Installation guide

5.1. Selection of installing position

Recommended installation position is as shown below. Do not install the meter in the center of the top of conical top tank and arc top tank, otherwise it will cause large interference signal.

Please do not install it above the feed inlet as shown in "Fig.4" below.

As shown in Fig.1 below, the distance from the tank wall to the outer wall of the mounting standpipe is about 1/4 of the tank diameter. For the meter with plastic rod antenna, it is suggested that the installation distance should not be less than 3 0 {cm } ; For the meter with horn antenna, the installation distance should not be less than 1 5 {cm }

It is recommended to install a protective cover as shown in "Fig.2" below to prevent the meter from direct sunlight and rain.

During solid measurement, the emission angle of the meter should be adjusted to ensure that the axis of the meter is perpendicular to the inclined plane of the material as far as possible, as shown in "Fig.5" below.

5.2. Installation of rod antenna radar on the tank

\blacktriangle Do not install devices such as limit switches and temperature sensors within the signal beam angle.
\blacktriangle Heating coils, vacuum rings, baffles and other devices within the signal beam angle may interfere with the measurement, as shown in the figure on the right.
\spadesuit Pay attention to the following requirements during installation:
\succ Antenna size: the larger the antenna size, the smaller the beam angle and the weaker the disturbing echo.
\succ False echo curve: the interference wave can be shielded by false echo curve, so as to achieve the best measurement effect.
> Waveguide pipe: usually, the waveguide pipe is used to avoid signal interference. > The metal-shield net on the slant (as shown in Fig."3" on the right) can emit radar wave signal, which could reduce disturbing echo.
\succ After installation, the housing can rotate for 3 5 0 ^ { \circ } which is convenient for operation display and terminal wiring.

The end of the rod antenna must extend out of the mounting tube. \spadesuit The rod antenna should be installed vertically.

5.3. Installation of horn antenna radar on the tank

5.3.1. Conventional installation

\blacktriangle It is suitable for the level measurement of medium with dielectric constant 8 { \bf r } \ge 1 . 9 .
\bullet After installation, the housing can rotate for 3 5 0 ^ { \circ } which is convenient for operation display and terminal wiring.
\bullet The horn antenna must extend out of the mounting tube to obtain the best measurement results.
\bullet The antenna with an extension tube longer than 1 0 0 {mm } can be selected.
\blacktriangle When the antenna horn cannot extend out of the mounting tube due to the mechanical structure, the mounting tube with a length of less than 5 0 0 {mm } can be selected.

Attention:

\bullet Please contact the manufacture, if you need to use the mounting tube longer than or equal to 5 0 0 {mm }
\spadesuit If the horn antenna is not installed vertically, the maximum span may be reduced.

5.3.2. With antenna extension tube

\bullet In order to ensure the horn antenna can stretch out the mounting tube, it should choose antenna extension tube, when the mounting tube is longer than the others.
\blacktriangle If the diameter of the horn mouth of the antenna is larger than the nominal width of the mounting tube, the antenna and its extension tube should be installed in reverse from the inside of the tank. Then, they should be lifted up and fastened with bolts from the outside. An extension tube that enables the antenna to be lifted by at least 1 0 0 {mm } should be selected.

\bullet Recommendation torque is 1 0 { { N m } }

5.3.3. Special extension tube

\blacktriangle If the antenna should be installed on the tank wall inclined and vertical, it should choose the antenna extension tube with angle 4 5 ^ { \circ } or 9 0 ^ { \circ } .
\bullet The minimum radius of curvature of extension bend tube (R) is 3 0 0 {mm }

5.4. Measurement through the plastic tank wall from the outside

\blacktriangle Dielectric constant of medium \mathtt { \varepsilon _ { r } } { > } 1 0
\bullet The distance is 1 5 {cm } - ( 6 ^ { \circ } ) at least between the high level and the tank top.
\blacktriangle The distance (H) should be greater than 1 0 0 {mm } (4").
\bullet It is recommended to use the mounting bracket to adjust to the desired distance H.
\bullet Avoid installing units in the environment with condensation and adhesion phenomenon as far as possible. Mounting in the open air, the clearance should be taken protective measure between the antenna and the vessel.
\spadesuit The optimal angle β should be between 1 5 ^ { \circ } and 2 0 ^ { \circ }
\bullet Please select DN250 (10") antenna as far as possible.
\bullet In the beam angle, please don't mount any device that may cause the interference outside the tank (such as pipes).
\bullet Please choose the tank material with low dielectric constant and suitable tank wall thickness. Please do not use electrically conductive plastic (refer to the following table).

5.5. Installation of MPS3200 in waveguide pipe

\blacktriangle It is suitable for the level measurement of medium with dielectric constant s { r } { >= } 1 . 4 -
\spadesuit After the meter is installed, its housing can rotate for 3 5 0 ^ { \circ } which is convenient for operation and wiring.
\bullet The radar antenna should be installed perpendicular to the surface of the measured medium and parallel to the wall of the measuring tank.
\blacktriangle The measurement can be carried out by a full-bore ball valve.

5.5.1. Suggestions on wave guide pipe

\succ Choose a horn antenna with the largest diameter as much as possible.
\blacktriangleright The diameter of the inner wall of the wave guide pipe should be consistent, and the inner wall should always be smooth.
\succ The measurement accuracy will be reduced at ± 2 0 {cm } of the tank connecting pipe.
\succ The wave guide pipe must be made of metal, which cannot be coated with enamel or plastic, and can be parallel or seamless welded stainless steel pipe.
\succ If the two sides of the wave guide pipe need to be drilled, the positions of the holes should be symmetrical (the included angle is 1 8 0 ^ { \circ } ) , and burrs should be removed from the holes.
\succ When the wave guide pipe needs to be extended, it can be achieved by welding the flange or sleeve, but the joint must not have a gap of more than 1 {mm }

5.6. Installation in tank-side indicator (optional)

5.6.1. Installation in standpipe

5.6.2. Installation in guide rail

5.7. Confirmation of installation

\blacktriangle Confirm that the meter is grounded correctly;
\blacktriangle Confirm that the meter enclosure has been screwed tightly;
\bullet Confirm that the meter measures normally and the output is consistent with the setup in the central control room;
\blacktriangle Ensure that the outlet of the meter entrance cable is tightened and the unused outlet is sealed by plugging;
\spadesuit Make sure that the instrument conduit arranged on site will not cause water accumulation to the meter;
\bullet Make sure that the cable connector of the meter complies with relevant protection standards and regulations;
\bullet Make sure that process connection components, such as flange gaskets and bolts, are suitable for the field working conditions;
\bullet Make sure that the process parameters of the field working conditions do not exceed the maximum process parameters allowed by the meter.

Warning:

\blacktriangleright Improper process connection components may lead to the risk of injury or poisoning!
\blacktriangleright If the meter is not installed correctly, high temperature, toxic, corrosive process media may be released at the connection between the meter and the tank!
\succ If the process parameters of the field working conditions exceed the maximum process parameters allowed by the meter, the meter may be damaged and there is a risk of explosion!
\succ Untightened or improperly connected cable connectors may have the risk of explosion in a hazardous zone!
\succ Do not loose, remove or disassemble the process connection components before the pressure in the tank is released!

6. Table of MPS3100 model

Special notes:

Typical model 1: MPS3100SB2X3XDMFB-BGCAAX Typical model 2: MPS3100SB2X3XDMGM

Special model: if special selection is required for a certain digit in the model code, fill \*Z' in the space of 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 model code. Then, explain all the "digit for special model" and special accessories in words without omission. The text description should be placed in brackets "O)". Before each description, "Zn:" \mathbf { \tilde { 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, "FB" will be changed to "FZ". Example 1 of special model: MPS3100SB2X3XDMGM/Z (Z1: equipped with 304 thread installation bracket) Example 2 of special model: MPS3100SB2X3XDMFB-BGCAAX/Z (Z1: with 304 flange installation bracket).
Tank-side cable: If tank-side indicator is optional, the standard configuration contains a communication

cable of 2 5 { m } Any excess is priced in meters.

7. Table of MPS3200 model

Special notes:

Typical model 1: MPS3200SB2X3XDMFB-BGCAAX Typical model 2: MPS3200SB2X3XDMGD

I Special model: if special selection is required for a certain digit in the model code, fill Z' in the space of 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 model code. 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, "Zn:" \mathbf { \tilde { 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, "FB" will be changed to "FZ".

Example of special model: MPS3200SB2X3XDFFB-BGZAAX/Z (Z1: PN63)

Tank-side cable: If tank-side indicator is optional, the standard configuration contains a communication cable of 2 5 { m } Any excess is priced in meters.

8. Table of MPS3300 model

Special notes:

Typical model \because MPS3300SB2X3ADMFB-BGCAAX

Special model: if special selection is required for a certain digit in the model code, fill \*Z' in the space of
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 model code. Then, explain all the "digit for special model" and special accessories in words without omission. The text description should be placed in brackets "O)". Before each description, "Zn:" \mathbf { \tilde { 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, "FB" will be changed to "FZ".
Example of special model: MPS3300SB2X3ADMFB-BGCAAX/Z (Z1: housing is coated with anti-corrosive paint)
Tank-side cable: If tank-side indicator is optional, the standard configuration contains a communication cable of 2 5 { m } Any excess is priced in meters.

9. Table of MPS3600 model

Special notes:

Typical model 1: MPS3600SB2X5BDMFB-WBHCFAX Typical model 2:MPS3600SB2X5BDMGD

Special model: if special selection is required for a certain 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 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, "FB" will be changed to "FZ".
Example of special model: MPS3600SRZX5BDMFB-WBHCFAX/Z (Z1: equipped with 24V active tank-side indicator; Z2: equipped with flange gasket and fastener)
Tank-side cable: If tank-side indicator is optional, the standard configuration contains a communication cable of 2 5 { m } Any excess is priced in meters.

10. Table of MPS3700 model

Special notes:

Typical model 1: MPS3700SB2X7XDMFB-WBMCFAX Typical model 2: MPS3700SB2X7XDMGD

Special model: if special selection is required for a certain digit in the model code, fill Z' in the space of 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 model code. Then, explain all the "digit for special model" and special accessories in words without omission. The text description should be placed in brackets "O)". Before each description, "Zn:" \mathbf { \tilde { 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, "FB" will be changed to "FZ".
Example of special model: MPS3700SB2X7XDMFB-WZMCFAX/Z (Z1: GB/T9119-2010) Tank-side cable: If tank-side indicator is optional, the standard configuration contains a communication cable of 2 5 { m } Any excess is priced in meters.

MPS3101 Pulse Radar Water Level Transmitter

1. Typical application

\blacktriangle MPS3101 pulse radar water level transmitter is suitable for level measurement at normal temperature and pressure under the condition free from steam, foam and stirring (for example, it is used to measure the level of circulating water, fire water and tap water).

2. Technical parameters

Note: The actual measuring range and accuracy of the meter are affected by antenna size, medium reflectivity, installation position and possible interference reflection. ± 3 {mm } is the highest precision of this series of meters under the standard conditions in the laboratory.

3. Overall dimensions

4. Table of MPS3101 model

Special notes:

Typical model: MPS3101B2XDM1GDP05X

Special model: if special selection is required for a certain digit in the model code, fill \*Z' in the space of special model in the model code, and ^ { { 6 6 } } / Z ^ { { 7 } } 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 omission. The text description should be placed in brackets "O)". 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, "FB" will be changed to "FZ".
Example of special model: MPS3101B2XDM1GDP05X/Z (Z1: with nameplates and manuals in Chinese and English)
Length of tank-side/meter cable: if it is less than 1 0 m , the first digit is 0, for example, 05 for 5 { m }

MPS370x High Temperature Radar Probe

1. Introduction to Product

High temperature radar probe is a radar measuring meter specially designed according to on-site working conditions, which can realize the measurement and monitoring in extremely high temperature environment.

2. Technical parameters

Note: The actual measuring range and accuracy of the meter are affected by antenna size, medium reflectivity, installation position and possible interference reflection. ± 3 {mm } is the highest precision of this series of meters under the standard conditions in the laboratory.

3. Outline structure

Special notes:

Typical model 1: MPS3701/Z
Typical model 2: MPS3702/Z
Typical model 3: MPS3703/Z
Special model: Please consult our technicians to determine the specific scheme before selecting the model. High temperature radar probe is a radar measuring meter specially designed according to on-site working conditions. Therefore, it is necessary to fill " / Z " behind the model and explain all the "special requirements" and special accessories in words without omission. The text description should be placed in brackets "()". Before each description, "Zn:" ( \mathtt { n } = 1 , 2 , 3 , \ldots ) should be used for guidance and each description should be separated by semicolon";".

MGS Series Guided Microwave Radar Level Transmitter

1. Introduction to Product

1.1. Measuring principle

The MGs Guided Microwave Radar Transmitter is designed with time domain reflectometry (TDR). The high-frequency pulse emitted by the meter propagates along the rod (cable). After encountering the measured medium, part of the high-frequency pulse energy is reflected due to the sudden change of the dielectric constant, and the reflected pulse returns to the meter along the rod (cable).

By measuring the time difference between pulse signal transmission and reflection, the distance from the measured medium to the meter flange can be calculated according to the following formula.

2 \bf { D } { { = } } \bf { C } x t C: Light speed T: Time difference between transmitted pulse and reflected pulse D: Distance of measured medium (as shown in the right figure)

Then, according to the set positions of full tank and empty tank, the material height can be calculated by the following formula and 4 { m A } { ~ } 2 0 { m A } current can be output.

Level height: \scriptstyle { { L = E - D } } Output current: { I _ { o } } = 4 { + } { L } x 1 6 / { E } L: Level height (as shown in the right figure) E: Span (as shown in the right figure)

1.2. Product advantages

\blacktriangle The measurement is not affected by liquid density, porosity of solid materials, temperature, dust, steam and other factors;
\spadesuit The foam on the liquid surface has no effect on measurement.
\bullet The Chinese menu is easy and intuitive to operate;
\spadesuit The measurement with the coaxial rod probe is completely independent of the internal structure of the tank and the mounting standpipe.
\blacktriangle Rod and cable probes are convenient for replacement

1.3. Application industries

\blacktriangle Petrochemical industry (oil field, petrochemical plant, oil extraction plant, oil refinery, chemical plant, coking plant, etc.) Media to be measured: crude oil, light oil, natural gas, methanol, ethanol, ammonia, benzene, polystyrene, esters, liquid carbon dioxide, liquid nitrogen, etc.
\blacktriangle Electric power industry (power plant high/low-pressure heater, condenser, etc.) Media to be measured: raw coal bin, powder bin, coal ash bin, chemical water, etc.
\blacktriangle Metallurgy industry (steel works) Media to be measured: limestone, coke and pulverized coal, cold back to min, raw material bin, powder bin, coal ash bin and chemical water, etc.
\blacktriangle Cement industry (cement plant, etc.) Media to be measured: clinker warehouse, powder bin, raw coal bin and chemical water, etc.

2. Technical characteristics

\* Technical indicator

: Working frequency: 100MHz\~1.8GHz
: Measuring range: cable type 0 . 3 { ~ } 2 0 { m } ; rod type 0 . 3 { ~ } 4 { m } ; coaxial type 0 . 1 { ~ } 4 { m }
: Resolution: 1mm
: Output signal: 4mA\~20mA
: Accuracy: ± 3 {mm }
: HART communication protocol

: G3/4"A, G1-1/2"A, 1-1/2"NPT or flange \* Communication protoc \* Process connection Process temperature \* Process pressure \* Power supply

. - 1 9 6 ^ { \circ } { C } ~ 4 4 0 ^ { \circ } { C } Environmental condition

. - 1 . 0 {kg f } / {cm } ^ { 2 } { ~ } 4 0 {kg f } / {cm } ^ { 2 } Please consult the manufacturer before ordering for special pressure type.
Two-wire DC power supply, 4 { m A } { ~ } 2 0 { m A } output, with HART communication: 14V\~30V DC (intrinsic safety type: 28V, intrinsic safety+flameproof type: 24V), ripple <= 1 0 0 { m V } .0
Four-wire DC power supply, 4 { m A } { ~ } 2 0 { m A } output, with HART communication: 18V\~36V DC, ripple <= 1 0 0 { m V }
. Four-wire AC power supply, 4 { m A } { ~ } 2 0 { m A } output, with HART communication: 90V\~260V AC, 5 0 { H z } { ~ } 6 0 { H z }
: Normal temperature working conditions: - 3 0 ^ { \circ } { C } { ~ } 7 0 ^ { \circ } { C } Low temperature working conditions - 6 0 ^ { \circ } { C } { ~ } 8 0 ^ { \circ } { C } LCD screen: - 3 0 ^ { \circ } { C } { ~ } 8 0 ^ { \circ } { C } (see the Explosion Protection Certificate for ambient temperature of explosion-proof products)
: IP66/IP67
: Intrinsic safety+gas explosion proof type
: Intrinsic safety + { g a s } flameproof type
: Intrinsic safety ^ + dust flameproof type
: EAC: Intrinsic safety+gas explosion proof type
: EAC: Intrinsic safety+dust explosion proof
: EAC: Gas flameproof type
: EAC: Dust flameproof type
. \mathbf { M } 2 0 { x } 1 . 5 thread (non-flameproof type: outer diameter of cable limited to 6 { {mm } { ~ } 1 2 { {mm } } } flameproof type: outer diameter of cable limited to 8 {mm } { ~ } 1 2 {mm }
: 1/2"NPT thread (non-flameproof type: outer diameter of cable limited to 6 { {mm } { ~ } 1 2 { {mm } } } flameproof type: outer diameter of cable limited to 8 {mm } { ~ } 1 2 {mm }

\* Degree of protection \* Safety certificate

Electrical interface

3. Guide for Selection

4. Blind zone and measuring distance

5. Installation guide

5.1. Installation position

\blacktriangle Rod probes and cable probes should be installed as far away as possible from the feed inlet;
\blacktriangle Rod probe and cable probe should be kept at a proper distance "B" from the tank wall. In case material adheres to the tank wall, the distance between the probe and the tank wall should \mathsf { b e } >= 3 0 0 {mm }
\blacktriangle Rod probe and cable probe should be installed as far away as possible from the installed equipment (such as tuning fork and holder), with a distance >= 3 0 0 {mm } 0
\blacktriangle When rod probe and cable probe are used in plastic tanks, the distance between the metal parts outside the tank and the probe should { b e } >= 3 0 0 {mm } .
\bullet Rod probe and cable probe cannot contact the metal tank wall and bottom;
\blacktriangle Ensure that the cable does not come into contact with the internal obstacles in the whole span, and fix the cable to the tank bottom if necessary;
\bullet Minimum distance "C" between the probe end and the tank bottom: \blacktriangleright Cable probe: 1 5 0 {mm } \succ Rod probe: 5 0 {mm } \succ Coaxial rod probe: 1 0 {mm }
\spadesuit For outdoor installation, protective measures are recommended;

\blacktriangle Select the appropriate installation position to prevent the bent cable probe deviating during installation or operation (e.g. pull the probe toward the tank wall when materials move).

5.2. Measurement of solid particles

\blacktriangle For measurement of solid particulates, the probe should be installed as far away as possible from the feed inlet to avoid impact and abrasion;
\blacktriangle In the concrete bin, as shown in the above figure, the optimal distance B between the probe and the cement tank wall should be >= 1 m and at least \ge 0 . 5 { m }
\bullet The cable probe must be installed carefully. If possible, it should be installed when the tank is empty,
\spadesuit Solid particulates produce pulling force on the cable probe, and the pulling force depends on the following factors: \succ Probe length \blacktriangleright Material density \succ Tank diameter \succ Probe diameter

\blacktriangle Typical loads of common solid particulates are shown in the following figure. They can be used as reference for calculation under the following conditions: \blacktriangleright Free overhang probe (probe end not fixed); \succ Free pouring solid > Safety factor 2 is adopted to compensate for the normal fluctuation of solid bulk materials.

5.3. Measurement of corrosive medium

When using the meter to measure the corrosive liquid, please select the "anti-corrosion" option in the table of model.

When used for measuring the liquid level in the plastic tank, it can be installed on the outer wall of the tank. so that the meter can measure the liquid level across the plastic tank wall, or the probe can be installed in a closed plastic pipe. The size of the plastic pipe can reach 5 0 ~ {mm } so that the meter can measure the liquid level across the plastic pipe.

5.4. Installation

5.4.1. Basic installation requirement

\blacktriangle The meter should be connected by thread or flange.
\bullet During installation, if the probe end contacts the tank bottom or tapered tank wall due to movement, it can be shortened or fixed by fixing the cable probe to the thread joint inside the tank bottom.
\blacktriangle It's ideal to install the meter with an internally welded thread joint flush with the tank top (as shown in the left figure below).
\blacktriangle When the meter is installed with a standpipe, the size of the standpipe should be DN50\~150 and its height should be less than 1 5 0 {mm } (as shown in the right figure below)

5.4.2. Installation in standpipe

5.4.3. Installation in the concrete bin

As shown in the following figure, when an instrument is installed in the thick-walled concrete bin, line a metal plate at the lower edge of the opening or insert a standpipe into the opening. Note that the standpipe should keep the shortest length flush with the lower edge of the bin top. When the inner diameter of the standpipe is less than { ~ \normalfont ~ { ~ α ~ } ~ } _ { 1 5 0 { ~mm } } , accessories like extension rods and stop collars should be selected (as shown in the right figure below).

5.4.4. Installation in the horizontal tank, vertical tank and embedded tank

\blacktriangle The measuring range of the coaxial rod probe and rod probe can reach 4 { ~ m ~ } For tanks with measuring range exceeding 4 { m } , cable probes can be selected;
\spadesuit Installation and fixing methods are the same as those for measurement of solid tanks;
\bullet If there are many obstacles in the tank or the obstacles are close to the probe, please select the coaxial rod probe;
\blacktriangle When used in a curved roof metal tank, rod probes or cable probes should not be installed in the center of the tank, while coaxial probes can be installed in any position of the tank, without impairing its performance.

Installation in the vertical tank Installation in the embedded tank

Installation in the horizontal tank

5.4.5. Installation in the wave guide pipe or bypass chamber

\blacktriangle The rod probes can be installed in conduits with diameter 4 0 { ~ } 1 0 0 ~ {mm } n
\bullet When the rod probe is installed in a metal conduit with diameter <= 1 0 0 its measurement effect is equivalent to that of the coaxial rod probe.
\blacktriangle The inner wall of the conduit should be smooth as far as possible, and the height of the weld crater should be less than 5 {mm }

5.4.6. Installation in the plastic tank

\blacktriangle When measuring the level with the guided microwave radar, a metal plate is needed at the process connection;
\blacktriangle When a rod probe or a cable probe is installed in a plastic tank, if the tank roof is made of plastics or timber, the probe should be installed with a metal flange with diameter \mathtt { \ge D N 8 0 } . If it is installed with threads, a metal plate with a diameter { > } 2 0 0 ~ {mm } should be equipped;
\blacktriangle When measuring aqueous solution, the probe can be installed on the outer wall of the tank, across the tank wall non-contact measurement can be implemented. If there are people near the installation position of the probe, a plastic semi-circular baffle or other protective parts with diameter about 2 0 0 ~ { {mm } } should be fixed outside the probe so as not to affect the measurement. \succ There should be no metal fixing ring in the tank; \succ The thickness of the tank wall should be less than 1 5 ~ {mm } when the tank wall is made of enhanced glass fiber; \succ There should be no gap between the tank wall and the probe;

5.4.7. End of fixed cable probe

\bullet If the cable probe is likely to contact the tank wall, the tapered tank bottom or other parts, or if the distance between the probe and the tank wall in the concrete tank is less than 0 . 5 { ~ m ~ } or the probe is not vertically installed, the probe end needs to be fixed; \blacktriangleright The probe end with threads can be used for fixation: \succ The 8 {mm } cable has M16 thread at the end.
\blacktriangle When the cable needs to be fixed, please select an 8 {mm } cable with high tensile strength;
\blacktriangle When fixed, the cable should be reliably grounded or insulated;
\bullet To prevent the cable from being broken due to excessive stress during feeding, the cable should be kept loose as much as possible. It is recommended that the length of the selected cable should be longer than the actual measuring range to ensure looseness { { > } } 1 \ {cm / m } in the center of the cable;
\spadesuit If the probe end needs to be fixed, there are two ways to fix it: \succ Insulation fixation: When the dielectric constant of the measured medium is low and the cable is fixed at the bottom of the metal tank, insulation fixation is required (as shown in the figure below). \succ Non-insulation fixation: Used when the dielectric constant of the measured medium is very high, and the tank is made of non-metallic material or material with very low dielectric constant or material with dielectric constant very close to that of the measured medium (as shown in the figure below).

Reliable grounding installation <br>Reliable insulating installation