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Tokyo Keiki KRG-10 User Manual

Microwave level gauge
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Document No. KF13-001K
Microwave Level Gauge
Ｋ
RG-10
User's Guide

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Summary of Contents for Tokyo Keiki KRG-10

  • Page 1 Document No. KF13-001K Microwave Level Gauge Ｋ RG-10 User's Guide...

  • Page 2: Safety Symbols

    Indicates that close to the high temperature part. CAUTION EU DECLARATION OF CONFORMITY（SIMPLIFIED） Hereby, TOKYO KEIKI INC., declares that the Radio equipment type KRG-10 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: http://www.tokyo-keiki.co.jp/ryutai/e/products/krg-10.html...

  • Page 3: Labels And Attached Place

    Labels and attached place The type label contains the most important data for identification and use of the device. NOTE : Ex only ① Product code (Refer to Chapter 1.) ② Serial number ③ Date of manufacture ④ Ex certification No.(Ex only) ⑤...

  • Page 4: Introduction

    Introduction Thank you very much for purchasing TOKYO KEIKI’s Microwave Level gauge KRG-10.This manual provides safety precautions for the Microwave Level gauge KRG-10 and explains specifications, functions, structure, installation, operations and troubleshooting in detail. Please be sure to read this manual thoroughly to ensure proper use of the device.

  • Page 5: Warranty Of The Device After Delivery

    Warranty of the device after delivery 1. The warranty period of the device is described in product specifications. The device will be repaired free of charge during the warranty period if failure due to design deficiencies or defective of workmanship has occurred. However, if the case corresponds to any of the following items (a to f), seller and manufacturer disclaims implied warranties.

  • Page 6: Safety Instructions And Warnings

    Safety instructions and warnings For safety, please follow the following items. WARNING ･Please follow the safety instructions in this manual. When dealing with the device contrary to instructions, seller and manufacturer cannot guarantee safety. ·Unauthorized modification of this device is strictly prohibited. For such damage or defect caused by unauthorized modification, seller and manufacturer do not assume any responsibility.

  • Page 7: Prohibitions And Precautions For Device Protection

    CAUTION For Ex application, in order to guarantee the Ex performance, there are severe restrictions for structure, location, external wiring, maintenance, and repair. There is a risk of explosion, if you do not adhere to the restrictions. This device show the symbol “X”, that require special conditions of use, ･Grounding is required, as accumulation evasion of static electricity;...

  • Page 8: Precautions On Using

    HOT CAUTION There is a case, the antenna is a high temperature by the process. Do not touched carelessly, because of there is a risk of burns. CAUTION Please follow the following items. If any of these conditions are not satisfied, incorrect measurement value might be displayed or outputted, or may not be measured.
  • Page 9 (8)(Blank)

  • Page 10: Table Of Contents

    Contents Before reading this manual ............(1) Safety symbols ................... (1) Labels and attached place ................. (2) Introduction ....................(3) Attention ..................... (3) Notes on the manual .................. (3) Warranty of the device after delivery ............(4) Registered trademarks ................(4) Safety instructions and warnings ...............
  • Page 11 4.2 Installation ..................4-2 4.3 Connection ..................4-2 4.4 Turn on/off ..................4-2 4.5 Setup measurement parameters ............4-2 Chapter 5 LCD and Keys operation ......... 5-1 5.1 LCD ....................5-1 5.2 4-Keys ....................5-3 5.3 Key parameter list ................5-7 5.4 Parameter instructions ...............
  • Page 12 6.10 Tools ....................6-80 6.10.1 Reset ..................6-80 6.10.2 Error .................... 6-83 Chapter 7 Precautions on device settings ......7-1 7.1 Basic setting parameters diagram ............. 7-1 7.2 Measuring negative levels ..............7-1 7.3 Avoiding noise echo ................7-2 7.4 Setting volume calculation / flow calculation ........7-3 7.5 Measurement near the bottom surface of the tank ......
  • Page 13 (12)(Blank)

  • Page 14: Chapter 1 Configuration

    Chapter 1 Configuration 1.1 Product overview KRG-10 is microwave level gauge measuring distance between the equipment and product surface by time-of-flight principle. 1.2 Product construction KRG-10 consists of transmitter head and antenna. LCD module can be attached in the transmitter head, which is an optional item. The LCD module is used to enter instrument parameters and displays measuring data.
  • Page 15 ① ① ② ② ③ Ex-types has a ③ different structure Fig. 1.2.2 Transmitter head with cone antenna 1. Transmitter head 1. Transmitter head 2. Flange (option) 2. Flange (option) 3. 2" cone antenna 3. 4" cone antenna...
  • Page 16 Fig. 1.2.3 Transmitter head with PTFE sealing antenna 1. Transmitter head 1. Transmitter head 2. Flange (option) 2. Flange (option) 3. 2" PTFE sealing antenna 3. 4" PTFE sealing antenna...
  • Page 17 ① ② ③ Fig. 1.2.4 Transmitter head with rod antenna 1. Transmitter head 2. Flange (option) 3. 1" rod antenna...

  • Page 18: Chapter 2 Installation

    Chapter 2 Installation 2.1 Note CAUTION ･ Installation at inappropriate location or improper installation procedure may cause incorrect measurement. Please refer to this manual for proper installation. ・Please arrange installation in accordance with local radio regulation. 2.2 Appropriate location for installation For stable measurement, please keep following conditions, (1) Non-centered position: Installed at center of the tank may cause of noise as symmetrical disturbance.

  • Page 19: Ptfe Sealing Antenna

    2.2.2 PTFE sealing antenna The process connection nozzle inside diameter must be smaller than sealing plate to keep inside tank pressure. Maximum height of nozzle will be limited antenna size accordingly as below. Table 2.2.1 Maximum height of nozzle 2" ( 50mm) PTFE Sealing antenna 150 mm 4"...

  • Page 20: Rod Antenna

    2.2.3 Rod antenna Please keep to leave extension of rod antenna over 40mm from nozzle tip. Extension of Rod antenna length is 186mm. NOTE: : In case that extension of rod antenna is not satisfied to leave over 40mm from nozzle tip, enough microwave can not get into the tank inside.

  • Page 21: Beam Area

    2.3 Beam area Please install level gauge avoiding any obstructions in the following beam area, which may any cause of disturbance reflection. Table 2.3.1 Beam angle, Distance, and Beam area Beam area (m) Antenna type 2" Cone antenna/ 4" Cone antenna/ 1"...

  • Page 22: Measuring Range

    2.6 Measuring range (1) Higher dielectric constant provides higher reflection and longer measurable range. (2) Larger antenna can have larger reflection for stable measurement and longer measuring range. (3) Turbulent or foamy surface decrease reflection signal strength which may let measurable range be shorter.

  • Page 23: Tip For Stable Measurement

    2.7 Tips for stable measurement Level gauge should be installed away from any obstacle inside tank which may cause of disturbance as basic. In case some of them are unavoidable, following tips may be solution for stable measurement. NOTE: “ ”...

  • Page 24: Shoulders And Struts

    Fig. 2.7.1.2 Installation method when the ladder rungs are present in the space 2.7.2 Shoulders and struts Install a reflector (flat metal plate) above the obstacle as shown in the Fig. 2.7.2. Wrong Correct Reflector Shoulder Shoulder Fig. 2.7.2 Installation method when the shoulders and support struts are present in the space...

  • Page 25: Near Tank Inlet

    2.7.3 Near tank inlet Nearby tank inlet may have turbulent, foam or splash which decrease reflection echo strength. Level gauge should be installed avoiding such location. Wrong Correct Fig. 2.7.3 Installation method for near the tank inlet...

  • Page 26: Narrow Channel

    2.7.4 Narrow channel With conditions such as the distance to the water surface width of the channel, from the level meter, edge effects and the liquid surface and the walls are different. By changing the polarization of the microwave, you may be able to reduce the influence of the edge. Correct Wrong Fig.

  • Page 27: Tank Installation

    2.7.5 Tank installation For round tank applications, install level gauge as the axis of the electric field is oriented 45 degrees to the tank wall to avoid influences from edge reflections off channel walls and the liquid surface. For flat wall tank applications, install level gauge as the axis of the electric field is oriented 45 degrees to the tank wall.

  • Page 28: Pipe Installation

    2.8 Pipe installation Microwave can propagate only inside of metal pipe. Following features are for the application for pipe installation. ･ It can use existing metal pipe without replacement. ･ It will not be affected by any obstacle reflection disturbance outside of the pipe. ･...
  • Page 29 ･ In case of installing to bypass pipe, to retain defined accuracy, keep enough length as high dead zone more than 500mm from maximum liquid surface and also low dead zone approximately 300~800mm to minimum liquid surface from pipe end. ･...

  • Page 30: Required Tools

    2.9 Required tools Following tool will be required to install this level gauge. ･Monkey wrench ･Hexagon wrench (3mm) 2-13...

  • Page 31: Installation

    2.10 Installation WARNING Do not damage antenna sealing parts. Keep gasket and flange surface clean to retain inside tank pressure. Damaged seals, non-clean gasket or non-flat flange surface may cause gas leakage when the level gauge will be installed on pressurized tanks. 2.10.1 Cone antenna (1) Required parts for cone antenna installation are as follows.
  • Page 32 (2) Fasten cone antenna with O-ring. Pass through flange and washer, then secured with locking nut. Let transmitter fix to cone antenna unit by locking nut. NOTE: ･ Please apply the grease lubricating for O-ring. ･ Please be careful there is no adhesion of dirt for O-ring through assembling. Transmitter Locking nut of transmitter...
  • Page 33 (3) Tighten locking nuts as below, then fixing transmitter and antenna unit with flange. Locking nut of transmitter head Locking nut Flange (Option) Ex-types has a different structure Fig. 2.10.1.3 Transmitter fixing 2-16...
  • Page 34 (4) Place the gasket on the tank nozzle. Carefully fit the flange and the cone antenna on the tank nozzle. Tighten the assembled unit by the bolts and nuts as below. CAUTION Tighten the assembly to retain the internal gas without any leakage. Nuts (Out of scope) Flange...

  • Page 35: Ptfe Sealing Antenna

    2.10.2 PTFE sealing antenna (1) Required parts for PTFE sealing antenna installation are as follows. ･ Flange is optional item. ･ Sealing gasket, bolts or nuts are out of scope for standard items. NOTE: ･ Please treat not to bend on be damaged the point of “A”. In case of this place is bent or damaged, it may cause noise reflection.
  • Page 36 (2) Fasten PTFE sealing antenna with O-ring. Pass through flange and washer, then secured with locking nut. Let transmitter fix to PTFE sealing antenna unit by locking nut. NOTE: ･ Please apply the grease lubricating for O-ring. ･ Please be careful there is no adhesion of dirt for O-ring through assembling. Transmitter Locking nut of transmitter head...
  • Page 37 (3) Tighten locking nuts as below, then fixing transmitter and antenna unit with flange. Flange Locking nut (Option) Fig. 2.10.2.3 Transmitter fixing (4) Place the gasket on the tank nozzle. Carefully fit the flange and the PTFE sealing antenna on the tank nozzle.
  • Page 38 appropriate installation. The adapter must be fasten with flanges as figure shown below. The hole of corresponding size in the adapter must be opened. For 2” and 4” PTFE sealing antenna, these hole sizes are typically 51mm and 102mm. Gaskets must have sufficient width to cover surfaces between flanges and the adapter for preventing any leakage.

  • Page 39: Rod Antenna

    2.10.3 Rod antenna (1)Required parts for rod antenna installation are as follows. ･ Flange is optional item. ･ Sealing gasket, bolts or nuts are out of scope for standard items. NOTE: ･ Please treat not to bend on be damaged the point of “A”. In case of this place is bent or damaged, it may cause noise reflection.
  • Page 40 (2) Fasten rod antenna with O-ring. Pass through flange and washer, then secured with locking nut. Let transmitter fix to rod antenna unit by locking nut. NOTE: ･Please apply the grease lubricating for O-ring. ･Please be careful there is no adhesion of dirt for O-ring through assembling. ・Please note direction of the rod antenna.
  • Page 41 (3) Tighten locking nuts as below, then fixing transmitter and antenna unit with flange. Fig. 2.103.3 Transmitter fixing 2-24...
  • Page 42 (4) Place the gasket on the tank nozzle. Carefully fit the flange and the PTFE sealing antenna on the tank nozzle. Tighten the assembled unit by the bolts and nuts as below. CAUTION Please tighten all bolts evenly and appropriately to prevent leakages of internal gases and also to retain waterproof performance.
  • Page 43 The hole of corresponding size in the adapter must be opened. For the rod antenna, the hole size is typically 26mm. Gaskets must have sufficient width to cover surfaces between flanges and the adapter for preventing any leakage. Sheet shaped part of antenna Flange Nuts...

  • Page 44: Chapter 3 Electrical Installation

    Chapter 3 Electrical installation 3.1 Connection to transmitter CAUTION ･Wiring work must be done non-hazardous area. ･Be sure to stop the power supply to the transmitter or any of accessories during wiring work to prevent electrical shock. ･Make sure that wire polarity is made correctly as incorrect wiring may result in damage to the transmitter and its connected accessories.

  • Page 45: For Ip67 Qualified Products

    3.1.2 For IP67 qualified products To satisfy waterproof performance of IP67, please keep following conditions. ・ During installation, if you remove cable gland, Ex blind plug or Non-Ex blind plug, please tighten at torque shown in Table 1 when mounting again. For cable gland and blind plug of Non-Ex products, please make sure to use the attached rubber washer.
  • Page 46 After wiring of transmitter side, then proceed confection of accessories. Followings are example of wiring. (1) Non-Ex connection example ＋ Power － Supply KRG-10 Operating voltage: 10.5 to 36V DC Output signal: 4 to 20mA DC Fig. 3.1.4 Non-Ex connection example...
  • Page 47 Ensure the requirement of wiring with Ex product must be satisfied. <Non-hazardous area> <Hazardous area> ＋ Power － Intrinsic supply KRG-10 safety barrier Operating voltage: 12 to 30V DC Output signal: 4 to 20mA DC Electrical parameters for the entity concept Ui=30V Ii=93mA Pi=0.7W...
  • Page 48 (Ex ia/db or Ex d ia) ＋ Power － Supply KRG-10 Operating voltage: 18 to 36V DC Output signal: 4 to 20mA DC Electrical parameters for the entity concept Um = 250V AC 50/60Hz Fig. 3.1.6 Ex ia/db (Ex d ia) connection example NOTE: ･Select appropriate ATEX / IECEx classified product to satisfy the Ex requirement.

  • Page 49: Cable Requirement

    3.2 Cable requirement Required specification: Twisted pair 2 core shielded cable (0.5 to 2.5mm-sq / AWG 20 to 12) Cable entry: 2 ports / M20 x 1.5 (Cable dia; 6.5 to 9mm) 3.3 Load resistance Refer to the Fig 3.1.5 for details. The maximum load resistance at the maximum operating voltage used in each equipment specification is shown in ②...

  • Page 50: Cable Shielding And Grounding

    3.5 Cable shielding and grounding In case of Non-Ex and Ex ia, perform grounding structure.(grounding resistance<100Ω) In case of Ex ia/db and Ex d ia, perform grounding structure.(grounding resistance<10Ω) Grounding terminal is outside of the transmitter and inside of the terminal box, respectively. May use which grounding terminal.
  • Page 51 3-8(Blank)

  • Page 52: Chapter 4 Commissioning

    Chapter 4 Commissioning 4.1 Step for starting measurement Installation Connec t i o n with transmitter head and accessories Confirmation of wiring Turn on the power Commissioning Confirmation of output Start measurement Fig. 4.1.1 Step for starting measurement NOTE: ･Connection procedure should be referred Chapter 3 Electrical installation. ･This level gauge can be configured through the keys (and display) or HART communication.

  • Page 53: Installation

    4.2 Installation Please refer to Chapter 2 Installation. Installation instructions are described in the chapter. 4.3 Connection To connect the equipment to external devices (e.g. power supply), please refer to Chapter 3 Electrical installation. If error exists, the equipment do not work properly. Including connection of grounding, please check the connection.
  • Page 54 2) Analog out (in the case of use) Please set analog output parameter, minimum output, maximum output. For operation by LCD and 4-key, please refer to table 5.3.1 in 5.3 Key parameter list. In usual case, other parameters are not to be set. However, in particular case, you need to change parameters.
  • Page 55 4-4(Blank)

  • Page 56: Chapter 5 Lcd And Keys Operation

    Chapter 5 LCD and Key operation 5.1 LCD LCD module connection and direction CAUTION ･Commissioning work should be done in non-hazardous area atmosphere. ･Be sure to stop power supply to the transmitter or any of accessories while wiring work to prevent electrical shock.
  • Page 57 Down key Up key Measurement value No surface Measurement echo status unit Escape key Enter key Fig. 5.1.2 LCD Measured value Table. 5.1.1 Measured value LCD Indication Unit sign Digit Level m or Ft ± 5 digits max. (Integral + Decimal number) Distance M or Ft ±...

  • Page 58: 4-Keys

    5.2 4-Keys flicker Parameter change Meas. mode Main menu Sub menu Set value Ｇ [0--] [0-0] 0.000 [1--] [0-1] [2--] [0-2] [7--] [0-8] [8--] [0-9] Fig. 5.2.1 Menu transition Key operation (1) Measurement value will be shown when the power is supplied. Fig.
  • Page 59 (3) Main menu can be change from 0 to 8 by “UP” or “DN” key. Fig. 5.2.4 Change main menu No. (4) When “ENT” key is clicked in main menu, sub menu will be shown as below. Below example shows “main menu-0”...
  • Page 60 (6) When “ENT” key is clicked after sub menu number is decided, set value will be shown as below. Fig. 5.2.7 LCD set value (7) In case of change the set value, click “ENT” key again, the lowest digit of set value will flicker. Fig.
  • Page 61 Example When "R" parameter is set to 6.555 m from 10 m. Table 5.2.1 Example Step Display Description 7.555 m Measuring level (Meas. mode) [ 0 - - ] Main menu [ 0 - 0 ] Sub menu [ 0 - 1 ] [ 0 - 2 ] [ 0 - 3 ] [ 0 - 4 ]...

  • Page 62: Key Parameter List

    5.3 Key parameter list Table 5.3.1 Key parameter list Main menu Parameters Default Unit Range menu [0-0] LCD Indication 0 ~ 14 [0-1] Measurement Unit 0, 1 [0-2] Antenna Type 0 ~ 12 [0-3] Bore m or Ft 0.000 ~ 99.999 [0-4] m or Ft -99.999 ~ 99.999...
  • Page 63 [4-0] Averaging Time 1 ~ 120 [4-1] Median Filter 0 ~ 120 [4-2] Re-search Delay 1 ~ 120 [4--] Measurement [4-3] Alarm Delay 1 ~ 120 Support [4-4] Surface Detect Mode 0, 1 [4-5] Negative Level as Zero 0, 1 [4-6] Noise Margin 0 ~ 255...

  • Page 64: Parameter Instructions

    5.4 Parameter instructions In this section, the details of the setting parameters of each menu are explained. Gauging reference point G(+) Reference point Output range Zero level Tank bottom Fig. 5.4.1 Basic setting Refer to Table 5.3.1 for set range of each parameter. [0-0] LCD Indication 0: Level 1: Distance...
  • Page 65 [0-2] Antenna Type Enter the type of the antenna pipe. Usually, it is not necessary for antenna type to be input. 0: 2”Cone 1: 4”Cone 2: 2”PTFE Seal 3: 4”PTFE Seal 4: 1”Rod 11: 2”Pipe 12: 4”Pipe [0-3] Bore Enter the inner diameter of the antenna pipe. [0-4] G Enter the parameter G, distance from reference point to gauging reference point.
  • Page 66 [1-0] Volume Calc. Method Volume converter. Selectable a formula of volume conversion from following 5 ways. 0: No Calc. 1: Vertical Cylinder Tank 2: Spherical Tank 3: Horizontal Cylinder Tank 4: User Defined Fig. 5.4.2 Volume Calc. Method [1-1] D (Diameter) Enter the parameter D, diameter of the tank.
  • Page 67 [2-0] Flow Calc. Method Flow rate converter. Selectable formula of flow rate conversion from following 5 way. 0: No Calc. 1: Weir_JIS_B8302 : Refer to a Table 6.3.1 2: Flume_JIS 3: User Defined : Select if user defined table conversion is used. 4: Weir_JIS_K0094 : Refer to a Table 6.3.2) [2-1] Weir Type...
  • Page 68 Table 5.4.1 Parshall Flume dimensions Unit : mm Flow range Reference (min.) size PF-01 25.4 1～30 PF-02 50.8 2～63 PF-03 76.2 3～193 PF-06 152.4 1525 5～398 PF-09 228.6 1626 1080 9～907 PF-10 304.8 2867 1492 11～1641 PF-15 457.2 1026 2943 1676 15～2508 PF-20...
  • Page 69 [2-3] B (Breadth of channel) Channel width. (Please refer Fig 5.4.3 Weir type) [2-4] b (Width of weir) Weir width. (Please refer 2: Edged Square of Fig 5.4.3 Weir type) [2-5] D (Height of weir edge relative to bottom of channel) Liquid height from notch end.
  • Page 70 [3-4] Minimum Value Enter the minimum value of analog current output range. [3-5] Maximum Value Enter the maximum value of analog current output range. [3-6] Alarm Output Factor Enter the factor of alarm output. 0: No Receiving Echo Select if alarm is output when echo cannot be detected 1: Device Failure Select if alarm is output when the device failure 2: Both...
  • Page 71 [4-6] Noise Margin Noise is eliminated in accordance with [dB] setting. Fig. 5.4.6 Noise margin [5-0] Valid Window Enter the valid window for detecting echo. 2 times the setting value becomes the range of valid window with a central focus on the surface echo. Setting Value Valid Window is 2 times the setting value...
  • Page 72 [5-4] Bottom Window Enter the window for tank bottom echo recognition. Fig. 5.4.9 Tank bottom echo & Bottom window [6-0] Level Tracking While this function is "On", the valid window shall be shifted in accordance with change of liquid level, if echo was lost.
  • Page 73 [6-3] Slow Search Speed Set the distance per second to enlarge the effective window during slow search. The distance to be enlarged varies depending on the search time. Note: ・Search time[s] = “Boot Mode” setting, “Normal” 15 sec / “Fast” 4 sec ・Slow Search Speed[d] = speed [m/sec] ×...
  • Page 74 [7-1] Calibration - 4 mA Calibration In fixed current output mode with current set at 4 mA, input ammeter reading. The procedure is as follows. Preparation Connect an ammeter. (2) [7-0]Fixed Current Output Current set at 4.000 mA. (3) [7-1]Calibration - 4 mA Calibration Enter the current measurement value.
  • Page 75 [8-2] Reboot The device is rebooted. Default. 1: Reboot Rebooted by "1" setting. [8-3] Device Status Error code will be shown on LCD. Detail meanings are as below. Table. 5.4.2 Error code Code Description Possible Cause Counter-measure E-00 Normal E-01 ROM failure (ROM Error) Even if the transmitter...

  • Page 76: Chapter 6 Operation By Configuration Software

    Fig. 6.1.1 System configuration 6.1.2 What is Level Config? Level Config is the configuration software for KRG-10 that enables to adjust the device by using a PC. Using HART for communication, it is possible to set parameters for the device and to monitor measurement values, states, etc.

  • Page 77: Software Operating Environment

    6.1.3 Software operating environment Supported OS: Microsoft Windows 7 Communication conditions: Operation on a PC that can use a HART modem Screen resolution: SVGA(800×600[dot]) or higher Required software: Adobe Acrobat Reader * In case of using Adobe Acrobat Reader 10.0 or later, the following environment setting must be implemented for Adobe Acrobat Reader.
  • Page 78 COM port settings: In case of using a HART modem of a serial interface type, you must set "1" for the receive buffer and transmit buffer of the COM port according to the following procedure: 1. Open the "Control Panel" from the "Start" tab. 2.

  • Page 79: Installing The Configuration Software

    6.1.4 Installing the configuration software Copy the distributed library and unzip it in a desired location. The folder "KRG-10" (hereinafter "main folder") is created. Distributed file Manual folder .. ① Document: Level Config_V***: Configuration software folder ..② README: Quick instruction document ..③...

  • Page 80: Starting The Configuration Software

    6.1.6 Starting the configuration software To start the configuration software, double click "Level Config.exe", the program body of the configuration software, in the configuration software folder. 6.1.7 Closing the configuration software You can select the following two methods to close the configuration software. ●Select "Exit"...
  • Page 81 * Initial settings file If you start the configuration software, an initial settings file "LevelConfig.ini" is automatically created in the configuration software folder at the next time that the program is closed. The basic settings of the configuration software are saved in the initial settings file. To reset the basic settings and return to default values, delete the initial settings file from the configuration software folder.

  • Page 82: Window

    6.1.8 Window The configuration of the basic window is shown below. ① Title bar ② Menu bar ③ Toolbar ⑤ Menu display panel ⑦ Status bar ⑥ Button operation panel ④ Menu selection panel Fig. 6.1.8 Basic window configuration Name / function of each panel: ①...

  • Page 83: Menus

    6.1.9 Menus It is possible to switch menus using the menu bar, menu selection panel (button / tree), or tab operations. The menu structure and the contents of each menu are shown in the following table. Table 6.1.1 Structure and content of the basic menu Basic menu [Menu] [Tab]...

  • Page 84: Explanation Of The Menu Bar

    6.1.10 Explanation of the menu bar The menu bar is used to call general functions except option functions. Menu bar items are shown below. <File menu> ① Reads the saved parameter, echo curve, and ① other values from a file. ②...

  • Page 85: Explanation Of The Toolbar

    6.1.11 Explanation of the toolbar The toolbar is used to call functions that are used relatively infrequently, such as option functions. Toolbar items are shown in the following table. Table 6.1.3 Toolbar Use to connect to the device. The device connections menu will open according to click operation.

  • Page 86: Saving Settings

    6.1.13 Saving settings This section explains how to save settings. If you click "Save" in the menu bar or toolbar, the following window is displayed. File name input space Fig. 6.1.13 File save dialog box If you click the "Save" button after inputting the file name in “file name input space” , the current parameter values as well as echo curve and other values that were read are saved to a file.

  • Page 87: Language Settings

    6.1.15 Language settings This section explains how to set up display languages. If you click "Language" in the menu bar or toolbar, the following window is displayed. ③Apply button for Language Operation / Language Selection ④Cancel button for Language ① Language operation ②...
  • Page 88 (1) Switching language operations The language operation method can be selected to be automatic or manual. - [Auto] If the default language of the user (PC language setting) is "Japanese," the display language will be Japanese. Otherwise, the display language will be English. - [Manual] The display language will be the language specified in display language setting area ②.

  • Page 89: Icon / Tree Display

    6.1.16 Icon / Tree display The following two display methods are used to display the menu selection panel. Icon display Tree display ① Icon / Tree display switching button ②Menu switching button ③Menu switching tree Fig. 6.1.16 Displaying the menu selection panel It is possible to switch the menu selection panel display by clicking the icon / tree display switching button ①.

  • Page 90: Enlarging / Reducing The Window

    6.1.17 Enlarging / Reducing the window It is possible to enlarge or reduce the menu display panel and button operation panel areas by clicking the "Wide" or "Short" buttons on the toolbar. When enlarged, the menu selection panel cannot be used, but the menu can be switched by using the menu bar. Enlarge button Enlarge Fig.

  • Page 91: Read All Settings

    6.1.18 Read all settings It is possible to read all of the setting parameters of the device together on the configuration software. To start reading all of the parameters, click "All Read" on the toolbar. Then the following window will be displayed, so click "OK" to begin reading all of the parameters. Fig.

  • Page 92: Referencing Help

    6.1.21 Referencing help This section explains how to reference Help. If you click "Level Config Help" in the menu bar or "Help" in the toolbar, the following window is displayed. Fig. 6.1.22 Help menu If you select and double click a keyword to reference in Help from the keywords displayed in the window, pages related to the keyword of the Help file (this manual) will be displayed.

  • Page 93: Connecting To The Device

    Connecting to the device This section explains how to connect to or disconnect from the device. To connect to or disconnect from the device, click "Connect" on the menu bar or toolbar. Then the following window is displayed. (The following window is automatically displayed when the configuration software is initially started.) ①Communication settings with the...

  • Page 94: Disconnection

    If connection is successful, the device information ② of the connection destination is displayed as shown in the following example. If you want to confirm the connection, do so by re-opening the window. If connection failed, confirm the connection pathway. Fig.
  • Page 95 (1) Reading basic settings data To read the basic settings data from the device, click the "Read" button. After reading starts, wait momentarily until the processing progress on the status bar stops. (2) Writing basic settings data To write the basic settings data to the device, input the data to write and then click the "Write" button.

  • Page 96: Calc. Volume

    6.3.2 Calc. Volume On the calc. volume menu, it is possible to read / write volume calculation data (parameters) for the device. If you click "Calc. Volume" tab or "Calc. Volume" in the tree display, the following window is displayed. Data that does not match the status of the device will be displayed with a yellow ) and data that matches the status of the device will be displayed with a white ).
  • Page 97 Calc. Volume data - Volume Calc. Method Tank shape (Unknown / Vertical Cylinder Tank / Spherical Tank / Horizontal Cylinder Tank / User Defined (Volume Table)) Distance to the full level of the measured tank (-99.999m to 99.999m) Measured tank offset (-99.999m to 99.999m) Measured tank diameter (0.0m to 99.999m)

  • Page 98: Calc. Flow

    6.3.3 Calc. Flow On the calc. flow menu, it is possible to read / write flow rate calculation data (parameters) for the device. If you click "Calc. Flow" tab or "Calc. Flow" in the tree display, the following window is displayed.
  • Page 99 Calc. Flow data - Flow Calc. Method Shape of flow meter (Unknown / Weir_JIS_B8302 / Flume_JIS / User Defined (Flow Table) / Weir_JIS_K0094 (*It is supported by firmware version 1.3.0 or later)) *When the weir exceeds application range of Table 6.3.1, choose “Weir_JIS_K0094”.
  • Page 100 Table 6.3.1 Flow calculation formula of weir and application range (JIS B 8302) JIS B 8302 Flow calculation formula Application range 0.44 ～ 1.0 m 0.577Kh 1.978 0.04 ～ 0.12 m 0.1 ～ 0.13 m 0.1h h/ν 0.5 ～ 1.2 m 0.1 ～ 0.75 m 0.24 81.2 0.07 ～ 0.26 m 0.09 √...
  • Page 101 Table 6.3.2 Flow calculation formula of weir (JIS K 0094) JIS K 0094 Flow calculation formula 1.40 Thomson formula 1.84 b 0.2h h Francis formula 1.84 B ∙ h Francis formula Q: Flow rate m /min b: Width of wier m B: Breadth of channel m 6-26...
  • Page 102 Table 6.3.3 Dimensions of Parshall Flumes and Flow calculation formula Size Flow rate Flow calculation formula 1.55 1 ～ 30 PF-01 25.4 450 300 200 Q=217.31 Ha 1.55 2 ～ 63 PF-02 50.8 450 350 250 434.63 Ha 1.547 3 ～ 193 PF-03 76.2 610 406 305...
  • Page 103 Table 6.3.4 Input range depend on flow unit (flow rate value and cutoff) Flow Unit Minimum Maximum 2399976 99999.0 /min 1666.65 /sec 27.777 US Gallons/D 9999999 US Gallons/h 9999999 US Gallons/min 440280.2 US Gallons/sec 7338.003 Barrels/D 9999999 Barrels/h 628971.7 Barrels/min 10482.86 Barrels/sec 174.714...
  • Page 104 Flume_JIS User Defined (Flow Table) Fig. 6.3.7 Flow Calc. Method 90° Triangular weir 60° Triangular weir Full-width weir Rectangular weir Fig. 6.3.8 Weir Type 6-29...

  • Page 105: Application

    Application This section explains the application setting function. You can write parameters that depend on installation condition such as rapid change, tank automatically by application setting wizard. After the application setting, User parameters will be changed into the suitable value. CAUTION ･If the setting is done by using the application setting function, that may have the parameters initially setting is changed, after the basic settings data (parameters) setting,...
  • Page 106 The display of the application setting wizard changes depending on a selected item. Selected "Clear Setting" Selected "Tank" Selected "Open Path" Choose detailed Choose detailed setting setting Selected "Pipe" Input pipe parameter Fig. 6.4.2 Application setting wizard 6-31...
  • Page 107 Selected item Clear Setting Select when you clear application parameters. Tank Select when you measure in a tank. Calm Surfaces Select when the device is used on the calm surface. (wave height less than 5mm) Ruffled Surfaces Select when the device is used on the surface with ruffles. (wave height more than 5 mm) Discharged water Select when much turbulent ruffles occurred due to inlet of liquids.

  • Page 108: Analog Current Output

    Analog Current Output This section explains the functions of the analog current output menu. In the analog current output menu, it is possible to read / write analog current output data (parameters) for the device. If you click "Analog Current Output" in the menu bar or menu selection panel, the following window is displayed.
  • Page 109 Analog Current Output data - Analog Current Output Parameter Content of parameters output at 4-20mA (Level / Distance / Volume / Flow / Signal Amp.) - Alarm Selection Content of alarm output (High (22.0mA)/Low (3.6mA)/Hold) - Minimum Output Setting value of analog current output parameter of 4mA (Level / Distance (-99.999m to 99.999m), Volume (0.0m3 to 99999.0m Flow (0.0m3/sec to 99999.0m3/sec),...

  • Page 110: Advance Settings

    Advanced settings This section explains the functions of the advanced settings menu. To open the advanced settings menu, click "Advance" on the menu bar or menu selection panel. 6.6.1 Measurement Support On the measurement support menu, it is possible to read / write measurement support data (parameters) for the device.
  • Page 111 Fig. 6.6.2 Median Filter Fig. 6.6.2 indicates setting at “Average Time”5sec and “Median Filter”2sec. KRG-10 will generate 1 measured result (process value) every 1 second. 5 sec means KRG-10 can generate 5 measured values. In case that you will set 2 sec for Median Filter value, it means removing 2 values from 5 measured values to get median value by 3 measured values.
  • Page 112 - Negative Level as Zero Function that forcibly sets the negative value of the liquid level to zero (ON/OFF) - Noise Margin The amount of the signal level decreased to mask the noise when the noise level is loud (0dB to 255dB) Set Noise Margin 10.00[dB] Noise...

  • Page 113: Outlier Removal

    6.6.2 Outlier Removal On the outlier removal menu, it is possible to read / write outlier removal data (parameters) for the device. If you click "Outlier Removal" tab or "Outlier Removal" in the tree display, the following window is displayed. Data that does not match the status of the device will be displayed with a yellow ) and data that matches the status of the device will be displayed with a white ).
  • Page 114 Outlier Removal data - Valid Window Window for determining valid values / outliers with respect to the detected echo. Valid Window is 2 times the setting value. (0.0m to 99.999m) Setting Value Valid Window is 2 times the setting value Valid Window (t2) Distance Fig.

  • Page 115: Tracking

    6.6.3 Tracking On the tracking menu, it is possible to read / write tracking data (parameters) for the device. If you click "Tracking" tab or "Tracking" in the tree display, the following window is displayed. Data that does not match the status of the device will be displayed with a yellow ( ) and data that matches the status of the device will be displayed with a white ( ).
  • Page 116 Tracking data - Level Tracking Function for moving the valid window from immediately prior liquid level variation if valid echo detection could not be performed (ON/OFF) Valid Window Distance Fig. 6.6.10 Level tracking - Level Prediction Function that outputs the liquid level predicted from the immediately prior liquid level variation, if valid echo detection could not be performed (ON/OFF)

  • Page 117: Device Information

    6.6.4 Device Information On the device information menu, it is possible to read / write device information data (parameters) for the device. If you click "Device Information" tab or "Device Information" in the tree display, the following window is displayed. Data that does not match the status of the device will be displayed with a yellow ( ) and data that matches the status of the device will be displayed with a white (...
  • Page 118 Device information data - ID ID number to identify the device (Read only) - SW Ver.No Firmware version of the device (Read only) - Product Tag Character string of Packed ASCII (uppercase alphanumeric characters and punctuation characters) used for identification of HART communication (Up to 8 characters) - Long Tag...

  • Page 119: Calibration

    Calibration This section explains the functions of the calibration menu. To open the calibration menu, click "Calibration" on the menu bar or menu selection panel. 6.7.1 Analog In the analog menu, it is possible to read / write analog data (parameters) for the device. If you click "Analog"...
  • Page 120 (3) 4mA calibration To perform a 4mA calibration on the device, click the "4mA Calibration" button ①. The following window will be displayed, so then click "OK" to output a fixed current of 4mA. Fig. 6.7.2 4mA calibration confirmation dialog box Fig.
  • Page 121 (4) 20mA calibration To perform a 20mA calibration on the device, click the "20mA Calibration" button ②. The following window will be displayed, so then click "OK" to output a fixed current of 20mA. Fig. 6.7.6 20mA calibration confirmation dialog box Fig.

  • Page 122: Level

    6.7.2 Level In the level menu, it is possible to read / write level data (parameters) for the device. If you click "Level" tab or "Level" in the tree display, the following window is displayed. Data that does not match the status of the device will be displayed with a yellow ( ) and data that matches the status of the device will be displayed with a white (...

  • Page 123: Check

    6.7.3 Check In the check menu, it is possible to perform an analog current output loop check and an output check after setting the volume / flow table. If you click "Check" tab or "Check" in the tree display, the following window is displayed.
  • Page 124 (1) Current Loop Check To perform a current loop check, select current loop check ( ) and then use the "Up" and "Down" buttons to select the output current value. Moves using "Up" and "Down" buttons Fig. 6.7.12 Output current value setting bar Then, if you click the "Start"...
  • Page 125 (2) Table Check To perform a table check, select table check ( ) and then click the "Start" button. Then the following window will be displayed, so click "OK" to transition to table check mode, and table check will begin. Fig.

  • Page 126: Echo Viewer

    Echo Viewer This section explains the functions of the echo viewer menu. In the echo viewer menu, it is possible to read fixed disturbance echo data (parameters) from the device and write such data to the device. In the echo viewer, it is also possible to display and analyze signal amplitude within the measurement range.
  • Page 127 (1) Display range settings To set the display range, input the range and click the "Set" button in the echo viewer operation area. The echo curve data is read from the device in the set range and displayed in the graph. Fig.
  • Page 128 It is possible to change the display range of the graph by right clicking on the graph and then dragging. Also, it is possible to perform zoom up and zoom reset by dragging downward to the bottom right on the graph and by dragging upward to the left on the graph, respectively. Right click and drag Zoom Up Left click and drag...
  • Page 129 Noise table color normal color (light blue) update color (dark blue) Left click and drag Fig. 6.8.5 Direct editing of the noise table points To write the noise table to the device, click [Noise Table] --> "Write" button. The updated points are written to the device.
  • Page 130 Left click and drag Reference Edit point Fig. 6.8.6 Setting the reference point using the assist tool Left click and drag Edit point Reference point Fig. 6.8.7 Making the interval between the reference point and edit point linear by using the assist tool To write the noise table to the device, click [Noise Table] -->...
  • Page 131 (3-4) Using the rejector to set the minimum value of the noise table. The minimum value of the noise table can be set by using the rejector. To operate the rejector, set the rejector display in graph option on the echo viewer operation area to ON ).
  • Page 132 (3-5) Automatically setting the noise table in the echo curve data The noise table can be automatically set in the echo curve data. If you click the "Auto Noise Table" button in the echo viewer operation area, the following window is displayed. Fig.
  • Page 133 (More than 0.0m) - Exclusion Range Range of the auto noise table exclusion area (More than 0.0m) After setting value confirmation, if you click "Next", the following window will be displayed. Fig. 6.8.11 Noise table automatic creation dialog box If you click "OK", the noise table will be automatically set in the echo curve data that is displayed.
  • Page 134 Auto noise table Auto noise table exclusion area exclusion area Margin of Margin of distance distance Margin of signal Margin of signal amplitude amplitude Auto-Recognition, Double Bounce Removal : OFF Auto-Recognition, Double Bounce Removal : ON Auto noise table exclusion area Central Margin of distance Margin of distance...
  • Page 135 (4) Reading fixed disturbance echo data To read the fixed disturbance echo data from the device, click [FDE] --> "Read" button. After reading starts, wait momentarily until the processing progress on the status bar stops. (5) Writing fixed disturbance echo data To write the fixed disturbance echo data to the device, input the data to write and then click [FDE] -->...
  • Page 136 (8) Recording echo curve data The read echo curve data can be internally recorded. There are two record formats, which are as follows: - csv format (comma separated) - bmp format (bit map image) Before starting to record, first select the record format from the Record File Type in the echo viewer operation area.
  • Page 137 (8-2) Recording echo curve data in bmp format To record echo curve data in bmp format, select "bmp" ( ) from the record file type in the echo viewer operation area. To start recording, first click the "Rec" button, and then specify the record file.
  • Page 138 (9) Replaying echo curve data The internally recorded echo curve data can be replayed. There are two replay methods, which are as follows: - Data replay (replays record file in csv format) - Image replay (replays record file in bmp format) (9-1) Replaying data To replay data, switch the operation mode in the echo viewer operation area to "Data Replay".
  • Page 139 ● Normal data conversion In the data replay function, replay data that is displayed in the graph during data replay can be copied to normal data. To copy replay data to normal data, click the "Replace Normal" button in the echo viewer operation area while the replay data is displayed on the graph.
  • Page 140 (9-2) Replaying images To replay images, switch the operation mode in the echo viewer operation area to "Image Play". To start replaying, first click the "Play" button, and then specify the replay file. The following window is displayed, so after specifying the file that you want to replay in the file specification field, click the "Open"...

  • Page 141: Measuring

    Measuring This section explains the functions of the measure menu. In the measure menu, measurement parameters of the device can be displayed / analyzed and Echo List data / maximum values of the device can be read. On firmware V1.6.1 or later, HART variables can be set / read.
  • Page 142 (1) Starting measurement To start device measurement, click [Measurement] --> "Start" button. Measurement is started in the period indicated below. Measurement period 1 sec: When Echo List measurement / log is not included 5 sec: When Echo List measurement / log is included Although the normal measurement interval is 1 second, if there is a check mark for either the Echo List measurement or log in the measurement value display area, an Echo List measurement is added, so the measurement interval changes to 5 seconds.
  • Page 143 (2) Checking measurement values The following two methods are used to check device measurement values. - Checking each measurement parameter by value - Checking each measurement parameter by graph (2-1) Checking each measurement parameter by value Using the measurement value display area, device measurement values can be checked by value for each parameter.
  • Page 144 (2-2) Checking each measurement parameter by graph To confirm device measurement values by graph for each parameter, switch the operation mode in the measurement operation area to "Graph". A maximum of two graphs can be displayed simultaneously in the measurement sub-menu display area. The graphs to display can be selected from those in "Display"...
  • Page 145 (3) Stopping measurement To stop device measurement, click [Measurement] --> "Stop" button. This stops measurement. After measurement has stopped, the measurement mode display changes as follows. Details on switching the measurement mode are described later. During measurement After measurement stops Data update mode Historical data mode Fig.
  • Page 146 ①File name input field Fig. 6.9.10 Log file specification dialog box After inputting the log file name in the file name input field ①, click the "Save" button to specify the log file. The log file is saved in csv format. To enable logging during measurement, click [Logging] -->...
  • Page 147 ● Operation example of automatic file creation Test.csv: Specify log file name "Test" (manually created) 30,000 data Test1.csv: Log file name "Test" + appended number "1" (automatically created) 30,000 data Test2.csv: Log file name "Test" + appended number "2" (automatically created) 30,000 data Test3.csv: Log file name "Test"...
  • Page 148 (5) Switching the measurement mode There are two measurement modes, which are as follows: The measurement mode can be switched by clicking the "Mode" button in the measurement operation area. - Data update mode (the measurement graph is being updated and measurement graph operations cannot be performed) - Historical data mode (the measurement graph has been stopped and measurement graph operations can be performed)
  • Page 149 ● Range settings To use range settings to change the display range of the graph, click near a graph scale line. Range setting window Click Callable area Fig. 6.9.12 Calling the range setting window Then the following window is displayed. Input setting values ①, and click the "Apply" button ②...
  • Page 150 (6) Reading Echo List data The Echo List table (distance / signal Amplitude list) can be read from the device. To read the Echo List, switch the operation mode in the measurement operation area to "Echo List". Then, click [Echo List] --> "Read" button to read the Echo List from the device. Echo List "Read"...
  • Page 151 ● Double bounce offset calculation To calculate the double bounce offset, input the liquid surface and the double bounce value in an input area ((1)), and then click the "Calculation" button ((2)). The calculation result ((3)) is displayed. (1) Input area (3) Calculation result (2) Calculation button Fig.
  • Page 152 (7) Reading maximum values To read maximum values from the device, switch the operation mode in the measurement operation area to "Maximum Value". Then, click [Maximum] --> "Read" button to read the maximum value from the device. Maximum value "Read" button Fig.
  • Page 153 (8) Setting HART variables (*It is supported by firmware version 1.6.1 or later) To set HART variables, switch the operation mode in the measurement operation area to "HART Variables". Click [Setting Items] --> "Read" button to read the assignment of HART variables from the device.
  • Page 154 (9) Measuring HART variables (*It is supported by firmware version 1.6.1 or later) To measure HART variables, switch the operation mode in the measurement operation area to "HART Variables". Click [Measurement] --> "Start" button to start HART variables measurement. Then, click [Measurement] --> "Stop" button to stop HART variables measurement. Also device measurement data of HART variables can be saved to a log file.

  • Page 155: Tools

    6.10 Tools This section explains the functions of the tool menu. To open the tool menu, click "Tools" on the menu bar or menu selection panel. 6.10.1 Reset In the Reset menu, device reset operations can be performed. There are four types of resets, which are Parameter Initialization, Parameter Backup, Parameter Recovery and Reboot.
  • Page 156 (1) Executing Parameter Initialization(*It is supported by firmware version between 1.4.1 and less than 1.5.0) To initialize device parameters, select "Parameter Initialization" ( ), and then click the "Execute" button. The following window will be displayed, so then click "OK" to initialize the device parameters.
  • Page 157 Fig. 6.10.4 Parameter recovery confirmation dialog box The parameters that are initialized by config software Parameters except the noise table, fixed disturbance echo, and HART bus address. (4) Executing Reboot To perform device reboot, select "Reboot" ( ), and then click the "Execute" button. Then the following window will be displayed, so click "OK"...

  • Page 158: Error

    6.10.2 Error In the Error menu, the status of the device can be read and checked. If you click "Error" tab or "Error" in the tree display, the following window is displayed. Equipment status Fig. 6.10.7 Error menu (1) Reading the device status To read the device status from the device, click the "Read"...
  • Page 159 Device status Details on the device status are shown in the following table. Table 6.10.1. Device status Display Description Status Conceivable cause Action － Green Normal If power cycling does not ROM status fix the problem, replace ROM failure the electronic components.

  • Page 160: Chapter 7 Precautions On Device Settings

    Chapter 7 Precautions on device settings 7.1 Basic setting parameters diagram Basic setting parameters are shown in the following diagram. Fig. 7.1.1 Basic setting parameters diagram Measuring negative levels If you set the basic setting parameter "C" to a non-zero number, surfaces at or below the Zero Level, which is the reference level, can be measured.

  • Page 161: Avoiding Noise Echo

    7.3 Avoiding noise echo (1) Masking near antenna Depending on the shape of the tank, there is sometimes a strong noise echo due to intense multiple reflection between the tank and the surface near the antenna. If affected by this, the surface level might not be able to be measured properly.

  • Page 162: Setting Volume Calculation / Flow Calculation

    7.4 Setting volume calculation / flow calculation (1) Volume calculation To calculate volume, select a standard tank shape from among those in the "Volume calc. method" setting parameter (vertical cylindrical shape / spherical shape / horizontal cylindrical shape) or select a user definition. If you select a standard tank shape, set each of the required parameters. The standard tank setting parameters are shown in the following table.
  • Page 163 (2) Flow calculation To calculate flow, select a standard channel shape (weir or flume) from among those in the "Flow calc. method" setting parameter or select a user definition. If you select a standard Flow calc. method, set each of the required parameters. The standard channel shape setting parameters are shown in the following table.

  • Page 164: Measurement Near The Bottom Surface Of The Tank

    7.5 Measurement near the bottom surface of the tank When the liquid to be measured has low permittivity, such as oil, microwaves pass through the liquid and there is a very intense reflection echo of the bottom surface. If the fluid level of such a liquid decreases, a surface echo cannot be distinguished from a bottom echo.

  • Page 165: Effect Of Structure Such As A Ladder

    7.9 Double Bounce removal There is a case where the reflected wave from the liquid surface not only is received by the antenna but that received by the antenna is reflected by the liquid surface back reflection in (ceiling) the tank upper surface, for antenna mounting position and tank shape.

  • Page 166: Chapter 8 Maintenance And Inspection

    Chapter 8 Maintenance and inspection Preventative maintenance and periodic inspection is important to ensure long life and proper functioning of the level gauge. 8.1 Maintenance and inspection WARNING When performing maintenance or inspections, stop the power supply to the equipment. If these measures are not taken, electrical shocks may occur.

  • Page 167: Lifetime Of Components

    8.4 Lifetime of components The equipment has components with operational life expectancies. Periodic inspection of these components is recommended. Please contact the nearest distributors in your area of the manufacturer when any component replacement is required. (1) LCD The LCD, which displays measurement value or other information, has an operational lifetime of approximately 5 year at room temperature.

  • Page 168: Replacement Of Terminal Module

    8.5 Replacement of terminal module Exchange procedure is as follows, (1) Turn-off the power supply and open the cover of the terminal box. (2) Pull connected cables out. (3) Loosen 2 screws as below indicated. (4) Remove module connector on the rear side (5) Exchange terminal module (built-in arrester) (6) Connect module connector on the rear side (7) Tighten it with 2 screws, and connect cable as returned...

  • Page 169: Calibration

    Connect The back side of the terminal module Transmitter head Fig. 8.5.2 Connection of the module 8.6 Calibration The level gauge has been shipped after calibrated in factory. Periodical verification can be done at the same facility in Japan. Please contact the seller, if you necessary.

  • Page 170: Chapter 9 Dismounting

    Chapter 9 Dismounting 9.1 Dismounting step WARNING Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vessel, high temperatures, corrosive or toxic products etc. Take note of chapters Chapter 2 Installation and Chapter 3 Electrical Installation and carry out the listed reserve order.
  • Page 171 9-2(Blank)

  • Page 172: Chapter 10 Technical Data

    Chapter 10 Technical data 10.1 General specifications Table 10.1.1 General specifications Measurement The time-of-flight measurement principle with microwave pulses principle Medium Liquid/Solid Liquid ε ≥ 1.8 Dielectric constant Process Temperature Non-Ex Cone antenna FKM:-10 to +150 °C Kalrez:-20 to +150 °C VMQ:-40 to +150 °C PTFE sealing antenna FKM:-10 to +200 °C...
  • Page 173 Measuring cycle time Tracking rate for Level change Max. 2m/s ( R > 3.0m ) ≤ ±1mm Repeatability Temperature drift 10mm or less than ±3mm/10K Maximum Cone antenna ±2mm measured error PTFE sealing antenna 1" rod antenna ±3mm NOTE: ･If the measurement distance is below 0.5m, the measured error is ±10mm. ･It is a consequence in our environment.
  • Page 174 Fig. 10.1.1 Maximum measured error of 2" cone antenna Fig. 10.1.2 Maximum measured error of 4" cone antenna NOTE: ①=Reference plane, A=Antenna length, H=Dead zone, Nz=Proximity zone Fig. 10.1.3 Reference plane of cone antenna NOTE: Reference plane is end of flange. 10-3...
  • Page 175 Fig. 10.1.4 Maximum measured error of 2" PTFE sealing antenna H = 100 L = 30m Fig. 10.1.5 Maximum measured error of 4" PTFE sealing antenna NOTE: ①=Reference plane, A=Antenna length, H=Dead zone, Nz=Proximity zone Fig. 10.1.6 Reference plane of PTFE sealing antenna NOTE: Reference plane is end of flange.
  • Page 176 Fig. 10.1.7 Maximum measured error of 1" rod antenna NOTE: ①=Reference plane, A=Antenna length, H=Dead zone, Nz=Proximity zone Fig. 10.1.8 Reference plane of 1B rod antenna NOTE: Reference plane is end of flange. 10-5...
  • Page 177 2”PTFE 4”PTFE 1”Rod sealing 2”Cone 4”Cone sealing Fig. 10.1.6 Antenna measuring distance of calm surface (reference) 2”PTFE 4”PTFE 1”Rod 2”Cone 4”Cone sealing sealing 1m 2m 3m 2.5m 6m Fig. 10.1.7 Antenna measuring distance of turbulent surface (reference) a : Oil, Hydraulic carbon, Mainly petroleum industry (ε = 1.8 ~ 4.0) b : Alcohol, Acid (ε...

  • Page 178: Transmitter Specifications

    10.2 Transmitter specifications Table 10.2.1 Transmitter specifications Microwave Frequency 26GHz Power < 5µW Operating Non-Ex DC 10.5 to 36V voltage Ex ia DC 12 to 30V Ex ia/d DC 18 to 36V Analog current Current output 4-20mA, 4mA(HART multidrop mode) output Resolution 0.4µA...
  • Page 179 Material Housing Die-cast aluminum (powder coating) Stainless steel parts SUS304 Seal VMQ (silicone rubber) Window Polycarbonate (Only in case of ”with LCD module”) Structure Aluminum housing with double chamber Waterproof IP66, IP66/IP67, NEMA 4X standard Dimensions Without display type 180 x 110 x 152 / H x W x L With display type 190 x 110 x 152 / H x W x L Weight...

  • Page 180: Antenna Specifications

    10.3 Antenna specifications Table 10.3.1 Cone antenna ･2": (half-power beam width: 18°) Antenna type Cone Diameter ･4": (half-power beam width: 8°) Material SUS316L, PTFE Operating Process Non-Ex conditions temperature FKM:-10 to +150 °C Kalrez:-20 to +150 °C VMQ:-40 to +150 °C NOTE: For Ex equipment, please refer to the “Safety Instructions”.

  • Page 181: Optional Specifications

    10.4 Optional specifications Table 10.4.1 Optional specifications ･Configuration software CD-R 10-10...

  • Page 182: Function

    10.5 Function Table 10.5.1 Function (summary) Function Description Basic action Distance measurement Measure distance between liquid surface and reference point Basic settings Measurement Set distance between reference parameters point and gauging reference point Set measuring range Set distance below zero point of level Set dead zone Measurement unit Select unit from [m] or [ft]...
  • Page 183 Tracking Level tracking Move the valid window depending on liquid level Slow search Expand the valid window if surface echo is Lost Empty tank detection Fix the valid window if liquid level shall be lower down to this value Level prediction Output expected level Search Search surface echo...

  • Page 184: Product Code

    10.6 Product code KRG - 1 0 - <Output> ： 4-20mA/HART <LCD module> ： without LCD module ： with LCD module <Material of seal O-ring> 2) ： FKM(Fluorine-containing rubber) ： VMQ(Silicone rubber) ： Kalrez6375 ： Other materials (option) 3) ： None <Antenna type>...

  • Page 185: Dimensions And Material

    10.7 Dimensions and material Fig. 10.7.1 KRG-10, 2" cone antenna 1. Window / Polycarbonate 7. Cable gland (option) 2. Window (For LCD) / Aluminum 8. Blind plug 3. Cover (terminal block) / Aluminum 9. Flange lock nut / SUS304 4. Housing / Aluminum 10.
  • Page 186 Fig. 10.7.2 KRG-10, 4" cone antenna 1. Window / Polycarbonate 7. Cable gland (option) 2. Window (For LCD) / Aluminum 8. Blind plug 3. Cover (terminal block) / Aluminum 9. Flange lock nut / SUS304 4. Housing / Aluminum 10. O-ring 5.
  • Page 187 ⑪ ⑤ ⑥ φ44.8 φ95 ⑫ Fig. 10.7.3 KRG-10, 2" PTFE sealing antenna 1. Window / Polycarbonate 7. Cable gland (option) 2. Window (For LCD) / Aluminum 8. Blind plug 3. Cover (terminal block) / Aluminum 9. Flange lock nut / SUS304 4.
  • Page 188 ⑪ ⑤ ⑥ φ84 φ150 ⑫ Fig. 10.7.4 KRG-10, 4" PTFE sealing antenna 1. Window / Polycarbonate 7. Cable gland (option) 2. Window (For LCD) / Aluminum 8. Blind plug 3. Cover (terminal block) / Aluminum 9. Flange lock nut / SUS304 4.
  • Page 189 ⑪ ④ ⑤ ⑥ φ22 ⑫ Fig. 10.7.5 KRG-10, 1" rod antenna 1. Window / Polycarbonate 7. Cable gland (option) 2. Window (For LCD) / Aluminum 8. Blind plug 3. Cover (terminal block) / Aluminum 9. Flange lock nut / SUS304 4.
  • Page 190 Fig. 10.7.6 Cable gland (Only Non-Ex type) 10-19...

  • Page 191: Required Flange Dimensions

    10.8 Required flange dimensions ΦA [mm] Antenna type t [mm] Tolerance 2" & 4" cone 13 to 35 2" PTFE sealing +0.1 12 to 25 4" PTFE sealing 13 to 35 1" rod 10 to 35 Fig. 10.8.1 Required flange dimensions 10-20...

  • Page 192: Chapter 11 Measurement Principle

    KRG-10 takes advantage of the time-of-flight measurement principle with microwave pulses which have central frequency of 26GHz. Placed on the top of tanks, KRG-10 emits microwave pulses toward liquids or pastes in the tank. Microwave pulses reflected from the liquid Antenna surface are received by the antenna.
  • Page 193 11-2(Blank)

  • Page 194: Chapter 12 Trouble Shooting

    Chapter 12 Trouble shooting 12.1 Tips for solution When any of trouble concerned with systems happens, please refer to following check points. Table 12.1.1 Trouble shooting Trouble Check Point ･Check power line turned on and connected. No indication on LCD ･Check LCD connector inserted properly.

  • Page 195: Application Error

    12.3 Application errors When the problem about application happens, please confirm that is shown in the following table and take measures. If the problem does not improve, please contact us. Table 12.3.1 Application errors Trouble Factor Measure ・ Please check setting G, R, C, H, the tank shape and so on are correct.
  • Page 196 ・ Please make the appropriate adjustment, refer to the echo curve. （ Refer to 6.6 Advanced settings and 6.8 Echo Viewer） ・ Please optimize the mounting position and Since microwave If the liquid surface is oscillation direction. (2.2 Appropriate signal weakened rough, measurement...
  • Page 197 12-4(Blank)
  • Page 198 EU DECLARATION OF CONFORMITY（SIMPLIFIED） Hereby, TOKYO KEIKI INC., declares that the Radio equipment type KRG-10 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: http://www.tokyo-keiki.co.jp/ryutai/e/products/krg-10.html （Blank）...
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  • Page 200 Oct. 2013 1st Edition Oct. 2019 12th Edition Measurement Systems Company 2-16-46, Minami Kamata, Ohta-ku, Tokyo 144-8551, Japan TEL: +81-3-3737-8621 FAX: +81-3-3737-8665 Web: http://www.tokyo-keiki.co.jp/ Copyright 2013 by TOKYO KEIKI INC. All rights reserved. (Specifications are subject to change without notice.)

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