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MADECO MDRA7 Series Manual

Smart radar level transmitter
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MADECO
Smart Radar Level Transmitter
Model: MDRA7
1.Product Overview
1.1 Introduction
The MDRA7 series radar level meter is an 80GHz high frequency Smart level measuring
instrument, which outputs (4 ~ 20) mA analog signal and can measure 120 meters in maximum range.
The antenna is further optimized, and the new type of fast microprocessor can carry out higher rate
signal analysis and processing, so that the instrument can be used for material level measurement under
very complex working conditions such as process storage tank, reactor and solid bin.
1.2 Principle
A radar level gauge emits a continuous radar wave signal from an antenna. The signal is a frequency
modulated continuous wave, or FMCW. There is a frequency difference between the continuous wave
emitted from the radar level gauge antenna and the echo returned from the surface of the object, the
frequency difference is proportional to the distance between the antenna and the surface of the object.
After receiving the ECHO, the electronic components are processed by special processing, such as
Fourier Transform, and a unique high precision algorithm is used to make the instrument accurately
measure the height of the object.
Canada

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Summary of Contents for MADECO MDRA7 Series

  • Page 1 1.Product Overview 1.1 Introduction The MDRA7 series radar level meter is an 80GHz high frequency Smart level measuring instrument, which outputs (4 ~ 20) mA analog signal and can measure 120 meters in maximum range. The antenna is further optimized, and the new type of fast microprocessor can carry out higher rate signal analysis and processing, so that the instrument can be used for material level measurement under very complex working conditions such as process storage tank, reactor and solid bin.
  • Page 2 MADECO Canada A.Min adjustment 20mA 100% 20mA 100% B.Measuring range C.Max Adjustment D.Distance E.Near blank H.Height of material R.Measurement reference surface 4mA 0% 4mA 0% liquid solids Note: When using radar level transmitter, make sure that the highest material level can not enter the measuring blind area (shown in figuree) .

  • Page 3: Product Introduction

    MADECO Canada 2.Product Introduction Features: Threaded integrated lens antenna, Bluetooth function, easy installation, high precision. Should be used: Measurement of liquid level in general liquid storage tanks, such as chemical industry, smelting. Range: 10m/20m/35m Accuracy: ±1mm Process connection: Thread/Flange Process temperature: -40~150 °C Process pressure: - 0.1~0.3 MPa...

  • Page 4: Mounting Position

    MADECO Canada Features: Both solid and liquid can be measured,Bluetooth function,small beam angle,strong gathering ability, high precision and Cone antenna. Application ： Measurement of both liquid level and solid level in general storage tanks in petroleum,chemical, electric power and other industries.
  • Page 5 MADECO Canada MDRA74 Minimum Distance from tank wall ≥300mm Note: ① Datum Plane ② Container Center or symmetrical axis Figure 3 The instrument should be mounted in the middle of the tank top if the tank is flat-topped conical tank,...
  • Page 6 MADECO Canada Because the beam angle of the radar is very small, it is almost not affected by the agitator. If the agitator diameter is large, and the beam angle can not completely avoid the agitator, it is suggested that when the empty tank agitator is in operation, perform a false echo storage.
  • Page 7 MADECO Canada By using a wave guide tube installation (or bypass tube), the impact of obstacles, foam, and large surface wave fluctuations on measurements within the container can be avoided. Note: The diameter of the isobaric hole is (5~10) mm.
  • Page 8 MADECO Canada 3.2 Typical Error Mounting Can Not be mounted on top of feed inlet. And note that outdoor installation should be taken to shade, rainproof measures. Correct Mistake Figure 9 The instrument can not be installed on the middle of the arched storage tank, if that it will generate multiple echoes because the arc-shaped Crest can focus on multiple echoes, and the multiple echo will strenger than the true echo,so it can not be installed on the center.
  • Page 9 MADECO Canada 3.3 Container Nozzle (1)MDRA71/MDRA72/MDRA73 It is strongly recommended that the height of short nozzle for vessel installation on site is ≤ 200mm, and the height of short pipe for vessel installation is ≤ 200mm, which is a very reasonable installation method.
  • Page 10 MADECO Canada (2) MDRA 74 Recommended connection tube installation length: It is recommended that the antenna extends to a distance of 10mm from the inner wall of the tank. Figure 12 Instructions for installing the connection tube: The maximum connection tube length - h depends on the connnecting tube diameter - d.
  • Page 11 MADECO Canada 3.4 Datum The following figure shows the position of the datum plane for different types of sensors. ① Datum ② Threaded connection ③ Flange connection ④ Universal flange connection Figure 14 3.5 Beam Angle And False Reflection The beam angle of a radar potentiometer depends on the antenna size.
  • Page 12 MADECO Canada MDRA72 0.52m Antenna lens 45mm .52m 0.52m0m Antenna lens 75mm .92m 0.92m0m Antenna lens 75mm Figure 16 MDRA73 0.92m 0.92m Antenna lens 75mm 2 23m 2. 23m Antenna lens 75mm 120m 3.14m Antenna lens 75mm Figure 17...
  • Page 13 MADECO Canada MDRA74 6° 0.52m 0m 0.52m 46mm Cone Antenna MDRA74 4° 4° 0.70m 0m 0.70m 1.22m 0m 1.22m 76mm Cone Antenna 76mm Cone Antenna MDRA74 2° 2° 1.48m 0m 1.48m 120m 2.09m 0m 2.09m 96mm Cone Antenna 96mm Cone Antenna...

  • Page 14: Electrical Connection

    MADECO Canada 4. Electrical Connection 4.1 Supply Voltage (4 ~ 20) mA/HART (two-wire system) Power supply 24V DC The power supply and output current signal share a two-core shielded cable. For intrinsically safe type, a safety barrier must be added between the power supply and the instrument.
  • Page 15 MADECO Canada Explosion proof joint: The explosion-proof type of this product is intrinsically safe. EXPLOSION-PROOF MARK: Exia II C T 6 Ga, this product is suitable for Exia IIC T6 Ga explosion-proof class below the combustible medium level continuous measurement.
  • Page 16 MADECO Canada Precautions for explosion protection ： Do not allow to replace components or structure, so as not to affect the explosion-proof performance. When this product is used in the “0“ zone, the power supply transformer to the security grid must meet the requirements of end users.
  • Page 17 MADECO Canada Non explosion proof area Explosion proof area 24V DC 4~20mA Either-or Figure 23 Four-wire connection of flameproof double-cavity instrument （ 3） Display wiring mode next to the tank Current type wiring Sensor (Power supply)(Sensor) 24V DC + - - +...

  • Page 18: Safety Guide

    MADECO Canada I²C type wiring Sensor 24V DC 4~20mA Power supply Figure 25 4.5 Safety Guide All electrical connections must be made after turn off the power. Please follow the instructions in the instrument manual! Please comply with local electrical installation procedures.

  • Page 19: Technical Parameter

    MADECO Canada 5. Technical Parameter General data MDRA 71 MDRA 72 MDRA 73 Model No. 〃 〃 Screw thread G¾ A Screw thread G 〃 〃 Screw thread G 3 ½ A Screw thread G1½ A Composite Flange Process connection 〃...
  • Page 20 MADECO Canada 1 M20 × 1.5 cable inlet (cable diameter 6 ~ 9 mm) Cable parameter Cable inlets 1 Blind Block M20 × 1.5 4~20mA/HART Output Signal RS485/Modbus Resolution 1.6μA Output parameter 20.5mA ； 22mA ； 3.9mA Fault output Damping time 0~100s Adjustable Aluminium/Plastics （...
  • Page 21 MADECO Canada Model No. MDRA Measuring range 20m/35m 85m/120m Blind spot 0.3m 0.4m 0.5m Precision ±1mm Microwave frequency 77~81GHz Communication interface HART/RS485 Measurement interval About 1 second (depending on the parameter setting) General About 1 second (depending on the parameter setting)
  • Page 22 MADECO Canada Exit the programming state or retreat to the upper level menu Keys Toggles the display value with the echo curve interface (home) Switch menu items Change cursor position Keys Modify parameter value, 0 ~ 9 infinite loop Switch curve display mode or home page display mode...
  • Page 23 6.1.2 Commissioning Steps (1) Device Startup And Initialization Interface After the meter is powered on, the start-up interface displays Starting, and then displays the MADECO logo and progress bar. Starting . .. Starting . .. (2) After entering the ranging interface, the material height, output current and electrical temperature are displayed.
  • Page 24 MADECO Canada 6.1.3 Basic setting In the running state, press the key to display the programming main menu, there is a triangle cursor on the left side of the main menu, press the key to change the position of the triangle cursor down, press the...
  • Page 25 MADECO Canada （2） Material properties The Material Properties menu is used to select liquids or solids. Press the button to enter the parameter selection state, use the key to move the arrow to the required parameter, such as liquid or solid, after the editing is completed, press the button to confirm.
  • Page 26 MADECO Canada (5) Mapping curve The mapping curve Indicates the mapping mode for setting the nonlinear output ratio. The output mapping screen is displayed, and the LCD is displayed. Press the button to enter the parameter selection state, use the key to select different mapping methods, such as storage box, mixing tank, metering tank, plastic tank and...
  • Page 27 MADECO Canada (7) Dead Zone Setting When there is a fixed obstacle near the surface of the distance sensor that interferes with the measurement, and the maximum material height will not reach the obstacle, it can be used to set the blind zone to avoid measurement errors. Press the...
  • Page 28 MADECO Canada (3) Backlight lighting Backlight lighting is used to illuminate the display. Press key to enter the current output selection interface, use key to select closed or open. Display Value Blacklight · · · · · · · · · · · ·...
  • Page 29 MADECO Canada Current output: You can choose the output direction of the current when the meter is working. The factory default setting is 4-20mA, and the output current has a direct proportional linear relationship with the material height; after selecting 20-4mA, the output current has an inverse proportional linear relationship with the material height, that is, the output current has a proportional linear relationship with the empty height.
  • Page 30 MADECO Canada Press the key to enter the copy sensor data selection menu, and you can use key to select copy from sensor and copy to sensor as required. Copy sensor data · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·...
  • Page 31 MADECO Canada (8) Set Distance Offset The distance offset setting is used to modify the measurement error of the instrument. Its value is the difference between the actual empty height value and the displayed empty height value. It has been set before leaving the factory. Enter the distance offset menu...
  • Page 32 MADECO Canada (11) Setting The Current Function You can set the value of the actual output current when the instrument encounters a fault. Press the key , go to the current function selection menu, select no change, 22mA or 3.6 Ma three fault output current.
  • Page 33 MADECO Canada 6.1.6 Advanced Setting (1) Original Accumulate This parameter is used to set the sampling times of the original data in a period. Press the button to enter the original cumulative editing interface, use the to set the number, use the key to select the edit digit, press the button to confirm.
  • Page 34 MADECO Canada (4)Echo EXP Echo EXP is equivalent to waveform damping, the sum of historical echo FFT, the smaller the value, the faster the change; The greater the value, the better the stability, preventing signal mutation. Press the button to enter the parameter editing mode, use the...
  • Page 35 MADECO Canada (6)Narrow Echo Filter The narrow-wave filter is used to set the filter width. If the echo width is less than the set number, it is considered as clutter. If the echo width is greater than the set value, it is considered as an effective signal.
  • Page 36 MADECO Canada (9)Noise Settings The Noise settings is used to filter out ineffective clutter, only waves above the envelope (threshold line) that exceed the minimum intensity are effective, and only values that exceed the minimum area are effective. Press the...
  • Page 37 MADECO Canada (12)Response Rate The default speed of tank loading and unloading can be superimposed with the window, and the default setting is 0.8m/s. Press key to enter the window setting and editing interface, use the key to set the...
  • Page 38 MADECO Canada (12) Signal Gain The signal gain is suitable for small on-site target signals. By adjusting the signal gain adjustment, the signal strength is increased to identify the target signal. Enter the signal gain adjustment, press the key to enter the signal gain selection interface, use the key to select 1, 2 or 3 three signal strengths.
  • Page 39 MADECO Canada (18) Echo Specified Press key to enter the window setting and editing interface, use key to set the number, use key to select the editing digit, and press key to confirm. Echo Specified Echo Specified 000.000 m 000.000...
  • Page 40 MADECO Canada 6.1.7 Information The information menu includes some basic information of the meter, such as sensor type, serial number, production date and software version. When the LCD displays the main menu, press the key or the key to move the arrow to Information.
  • Page 41 MADECO Canada A table Menu Overview: Medium Solidit Solidit Service Accumulate Advanced Settings...
  • Page 42 MADECO Canada...
  • Page 43 MADECO Canada Schedule Basic Setting Max.Min.Adjustment Liquid Medium Solidit Display First Echo Damping Accumulate Service Storage Tank Agitator Tank Mapping Curve Level 1 Filter Measuring Tank Advanced Setting Plastic Tank Range Reservoir 信息 Level 2 Filter Nearblank Setup 信息 Info...
  • Page 44 ②USB interface ③MADECO HART adapter/standard hart adapter ④250ΩResistance Note: Only Precision Wave brand MADECO-HART can be connected to MADECO-Hart V3.0 PC software. Figure 28 (1) Login page The login page of MADECO-Hart V3.0 software consists of seven parts: parameter selection, serial port, address, language, user name, password and company basic information.
  • Page 45 MADECO Canada (2) Main page The main interface of MADECO-Hart V3.0 software consists of six parts: menu bar, tool bar, directory, real-time data, parameter setting area and curve display area. Figure 30 Main interface (3) Real-time data The basic parameters of MDRA70 series mainly include meter status, meter address, current distance, empty height, material height, percentage and output current.
  • Page 46 MADECO Canada (4) Directory And Parameter Setting ① Level adjustment Level adjustment includes six functions of blind zone, high level adjustment, low level adjustment, range, high level adjustment percentage and low level adjustment percentage. The written low adjustment and range data should not exceed the maximum value of the range corresponding to the selected model.
  • Page 47 MADECO Canada ③Damping time Damping time includes a function of damping time. The damping time is mainly to set a larger damping time to realize the stability of the measured value and increase the anti-interference ability. MADECO Figure 34 Damping time interface ④Display...
  • Page 48 MADECO Canada ⑤Diagnosis Diagnosis includes four functions of maximum value, minimum value, sensor status and output current. The diagnostic page functions are all read-only. MADECO Figure 36 Diagnosis interface ⑥ Current Output The output current includes three functions of failure mode, output mode and minimum current.
  • Page 49 MADECO Canada ⑦ False echo False echo includes six functions: create new false echo, update false echo, edit false echo, delete all, delete range and delete serial number. MADECO Figure 38 False echo interface ⑧Advance Settings 1 Advance setting 1 includes two functions of calibration points and factory learning. Before leaving the factory, the device needs to be placed in a sealed absorbing material for factory learning settings and calibration.
  • Page 50 MADECO Canada ⑨Advance Settings 2 Advance settings 2 include other functions such as transmit frequency, 4mA offset, 20mA offset and zero echo function.Zero echo function includes three modes: off, automatic, and manual, with two modes of reading and writing. MADECO Figure 40 Advance Settings 2 interface ⑩Expert settings...
  • Page 51 MADECO Canada ⑪ Curve The curve contains three curves of echo curve, envelope curve and false echo, and the upper right corner of the curve contains three data items of signal strength, arrow data and inverted triangle data. The position indicated by the arrow represents the position of the target selected by the instrument.
  • Page 52 MADECO Canada ②Create and update false echo Create a single false echo starting from 0, update can set false echo again based on the newly created data. MADECO MADECO Figure 44 Create false echo function MADECO MADECO Figure 45 Update false echo function...
  • Page 53 MADECO Canada ③ Delete false echo Delete range can delete a section of false echoes by setting the start point and end point; delete serial number can delete a group of false echoes in the false echo list; delete all can delete all false echoes.
  • Page 54 MADECO Canada Figure 48 Create a new zero point echo in the automatic mode at the 9m position ②Add zero echo in manual mode Select the "Manual" command, the read range data is displayed in the text box after the "New Zero Echo Distance" in the pop-up window, then modify the data in the text box, write the data you want to modify, and then click the menu Click the "Save"...
  • Page 55 MADECO Canada ③Close mode After the "close" command is written, all the data in the zero point echo part will be restored to 0, and after the echo curve is read, the zero point echo on the echo curve will also disappear.
  • Page 56 ②Smartphones ③Tablet PC Figure 53 6.4.1 MDRA7 series can be debugged with Bluetooth function (1) Users can search and download the MD Tools APP software on 360 Mobile Assistant, Google Play, Apple APP Store and Baidu Mobile Assistant respectively. (2) After the download is complete, open the software, select the required language, enter the account number and password, and check the user agreement and privacy agreement, and click Login to log in successfully.
  • Page 57 MADECO Canada 6.4.2 Connection (1) Enter the main page and click "My Devices". MD Tools MD Tools Figure 55 Figure 56...
  • Page 58 MADECO Canada (2) It is allowed to obtain the location of the device, and it is allowed to find nearby devices; if you still cannot find the device after all are allowed, you need to check whether the "location" function in the notification bar of the mobile phone is turned on.
  • Page 59 MADECO Canada (3) Click "Refresh", you can see the meters that can be connected in the "Device List", click the name of the meter that needs to be connected according to the actual situation, and the connection will be successful.
  • Page 60 Angle and current five real-time data, the cycle reading cycle of real-time data is 5s. (The "instrument serial number" should be consistent with the last 8 digits of the device name in the device list). MADECO Tools MDRA71 Figure 62...
  • Page 61 MADECO Canada 6.4.3 Parameter setting (1)Click "Parameter Settings" on the main page to enter the directory page of the Bluetooth software. Figure 63...
  • Page 62 MADECO Canada (2) Enter the "Installation Parameters" page. The "Installation Parameters" page includes four functions: range, dead zone, high position adjustment, and low position adjustment. At this time, the measuring range of the meter is displayed as 38.5m. Figure 64...
  • Page 63 MADECO Canada (3) Click the text box of the range function, use the keyboard to delete the parameters in the text box at this time, and enter 20, click the "Save" button at the bottom of the page, the save is successful, and exit the "Installation Parameters" page.
  • Page 64 MADECO Canada Figure 67 (4) Enter the "Installation Parameters" page again, and you can see that the measuring range of the instrument has been displayed as 20m, and the parameter of the low position adjustment function has also changed to 20m.
  • Page 65 MADECO Canada Figure 68 6.4.4 Parameter setting (1) Click "Debugging and Diagnosis" on the main page to enter the curve display page. (2) The horizontal axis of the curve is the distance information, and the vertical axis is the amplitude information. The upper part of the page contains three items: signal amplitude of the selected target, locked target data and instantaneous target data.
  • Page 66 MADECO Canada Figure 69 (3) By clicking the corresponding color mark, the corresponding curve in the coordinate system can be hidden.
  • Page 67 MADECO Canada Figure 70 (4) Click the "horizontal screen" button to display the curve in a horizontal screen; click the "auto read" button to read the curve periodically, and the cycle reading period is 15s. Figure 71...
  • Page 68 MADECO Canada 6.5 Error code interpretation: CODE Reason Rectify Change the measuring range or F140 Zero signal . blind area size according to the May overshoot or enter actual situation on site. a blind zone. 7.MDRA70 Series Size （ Unit:mm）...
  • Page 69 MADECO Canada Shell Size(Material: ∅ 94 Radar Level Transmitter Model No.: MDRA7X No. : 17003521 Range:10m Process temperature: -40~150℃ Process pressure: -0.1~0.3MPa Output Current: 4~20mA Supply Voltage: 24V DC Explosion-proof grade: Exia IIC T6 Ga Protection class: IP68 ∅ 54 ∅...
  • Page 70 MADECO Canada MDRA72 Flange type selection table Serial number Specifications DN50 DN80 DN100 ∅ 165 ∅200 ∅ 220 Outside diameter (D) Center hole distance (K) n×L Number of holes (n) Aperture (L) Thickness (C) 45mm Antenna lens Table 2 Flange type selection table Serial number Specifications...
  • Page 71 MADECO Canada MDRA73 G2 "A G3½ "A 45mm Antenna lens 75mm Antenna lens Blow the mouthpiece M8*25 Hexagon bolts Universal Flange Antenna lens 75mm Universal Flange type selection table Serial number DN200 DN100 DN125 DN150 Specifications ∅ ∅ ∅ ∅...
  • Page 72 MADECO Canada MDRA74 Taper antenna type selection diagram Unit: mm "A /1 "NPT Diameter D Altitude H Flange type selection table Unit: mm Serial number Specifications DN250 DN50 DN80 DN100 DN150 DN200 Outside diameter (D) ∅ ∅ 200 ∅220 ∅285 ∅340...
  • Page 73 MADECO Canada Universal Flange type selection table Unit: mm Serial number Specifications DN80 DN125 DN250 DN100 DN150 DN200 Outside diameter (D) ∅405 ∅ 200 ∅220 ∅ ∅285 ∅340 Center hole distance (K) ∅ ∅ ∅ ∅ ∅ ∅ Number of holes(n) Aperture (L) ∅...
  • Page 74 MADECO Canada Antenna Lens Beam Angle Precision 75mm 3° ±1mm MDRA71 MDRA72 ----------------------- -1mm ----------------------- -3mm 0.1m Antenna Lens Beam Angle Precision 45mm 6° ±1mm MDRA73 ----------------------- -1mm ----------------------- -3mm 0.1m Antenna Lens Beam Angle Precision 75mm 3° ±1mm MDRA73...
  • Page 75 MADECO Canada Antenna Lens Beam Angle Precision 45mm 6° ±1mm MDRA73 ----------------------- -1mm ----------------------- -3mm 0.1m Antenna Lens Beam Angle Precision 75mm 3° ±1mm MDRA73 ----------------------- -1mm ----------------------- -3mm 0.1m Antenna Lens Beam Angle Precision 75mm 3° ±1mm MDRA73 -----------------------...
  • Page 76 MADECO Canada Antenna diameter Beam angle Precision MDRA74 6° 46mm -1mm 0.1m -3mm Antenna diameter Beam angle Precision MDRA74 4° 76mm -1mm 0.1m -3mm Beam angle Precision Antenna diameter MDRA74 4° 76mm -1mm 0.1m -3mm Antenna diameter Beam angle Precision MDRA74 2°...

  • Page 77: Transport And Storage

    MADECO Canada 9.Transport And Storage In addition, the transport and storage conditions of level transmitter shall be in accordance with the following requirements: 1. The material level Transmitter should be transported strictly according to the characteristics of the products and the requirements of the specifications.

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