Related Manuals for Nitto TGF450 Series
Summary of Contents for Nitto TGF450 Series
- Page 1 TGF450 Series Thermal Mass Flowmeter User’s Manual Nitto Instruments Co.,Ltd Japan Hefei Comate Intelligent Sensor Technology Co,. Ltd User’s Manual Rev1.0 Date:15/07/2015 User’s Manual 1/47...
-
Page 2: Support
Dear Customer: Thanks for choosing our flowmeter products. Please read this manual carefully to know how to install and use this product to ensure its best performance. If you should encounter a problem when using the product, please do not hesitate to let us know. We are going to take no responsibility if the flowmeter is damaged because of anyone repair or replace any parts of it with our permission. -
Page 3: Table Of Contents
TABLE OF CONTENTS SUPPORT ............................ 2 PLACE AN ORDER .......................... 2 1 GENERAL ............................ 6 1.1 MODEL NUMBER AND GENERAL SPECIFICATION ................. 6 1.2 PACKING LIST .......................... 6 1.3 STORAGE ........................... 6 1.4 MEASURING PRINCIPLE ...................... 6 2 INSTALL ............................ 7 2.1 FIND MOST SUITABLE LOCATION .................... 7 2.2 REQUIREMENT ON STRAIGHT PIPE LINE .................. 8 2.3 REQUIREMENT ON INSERTION DIRECTION ................. 9 2.4 PROCEDURE OF INSTALLATION .................... ... - Page 4 5.2 SETTING LIST .......................... 2 2 CHART 5.1 CODE SETTING ADDRESS .................... 2 2 CHART 5.2 DIGITS SETTINGADDRESS .................... 2 5 5.3 EXAMPLE OF SETTING ...................... 2 6 5.4 PASSWORD SETTING INSTRUCTION .................. 2 6 6 INSTRUCTION OF RS485 MODBUS COMMUNICATION .............. 2 7 6.1 INTERFACE REGULATION ...................... 2 7 6.2 COMMENDS .......................... 2 9 6.3 CALCULATION OF CRC PARITY CODE. .................. 3 1 6.4 THE FLOAT DATE FORMAT OF THE INSTRUMENT ............... ...
- Page 5 7.1.16 COMMAND 35: WRITE PRIMARY VARIABLE RANGE VALUES .......... 3 9 7.1.17 COMMAND 36: WRITE PRIMARY VARIABLE UPPER LIMIT VALUE .......... 3 9 7.1.18 COMMAND 37: WRITE PRIMARY VARIABLE LOWER LIMIT VALUE ......... 4 0 7.1.19 COMMAND 40: ENTER/EXIT PRIMARY VARIABLE CURRENT MODE ........ 4 0 7.1.20 COMMAND 45: TRIM PRIMARY VARIABLE CURRENT DAC ZERO.......... 4 0 7.1.21 COMMAND 46: TRIM PRIMARY VARIABLE CURRENT DAC GAIN .......... 4 1 8 MAINTAINING .......................... 4 1 8.1 HOW TO CHANGE THE TRANSMITTER’S DIRECTION .............. 4 1 8.2 REPLACE A TRANSMITTER CIRCUIT BOARDS ................ 4 2 8.3 REMOVE THE FLOW METER ...
-
Page 6: 1 General
1.4 Measuring principle TGF450 Series Thermal Mass Flowmeter measures gas mass flow base on thermal diffusion theory and thermal principle of Newton , It have two RTD sensor (ref to picture 1.2) located in the flow. One RTD is heated to T1 by a heating power rate of P, the other is not heated but to measure the medium temperature T2. -
Page 7: 2 Install
Picture 1.2 Principle The K1,K2 and K3 in above equation is constant related to the character of medium . So the mass flow Q can be get through measuring the heating power rate P and difference of temperature T . In actual application, there are two different method, one is consistent current method (keep the P unchanged) and the other is consistent temperature method (keep T unchanged) -
Page 8: Requirement On Straight Pipe Line
2.2 Requirement on straight pipe line Standard Curved pipe line in the upstream or downstream Curved pipe line that may creat turbulence in the upstream or downstream There are valves or pressure controller or any other device may cause turbulence in upstream or down stream of the flowmeter If the pipeline of the flowmeter... -
Page 9: Requirement On Insertion Direction
2.3 Requirement on insertion direction On a horizontal pipe line, normal air or gas Above or under the pipeline Side of the pipe line 45 degree under the pipe line or just under the pipelien On a horizontal pipe line, high humidity air or wet natural gas. -
Page 10: Procedure Of Installation
2.4 Procedure of installation 2.4.1 Nut sleeve insertion (No flow in pipeline) 1) Drill a hole on the position where the meter will be installed, Ø 13mm （± 0.5 mm） 2) Clean the burrs and sharps on where will be welded 3) Weld the MNPT 1/2”... - Page 11 7) Adjust the direction of the flowmeter: Make sure the derection mark on the probe (Part No.5) is pointing to the direction as the flow goes. Please reference to the picture below. 8) Insert the flowmeter to the depth S as calculated previous, now hold the sleeve (Part No.3) with a wrench and tighen the nut (Part No.4) with another wrench.
- Page 12 2 ) Connect the 1/2” ball valve (Part No.2) with FNPT threads on both ends to the socket. Seal the thread connection with thread sealant. Please note the lever on the ball valve should be point to up when the valve is open. 3) Drill a hole with the hot tap hole opener, Ø...
-
Page 13: 3 Wiring
7) Adjust the direction of the flowmeter: Make sure the derection mark on the probe (Part No.5) is pointing to the direction as the flow goes. Please reference to the picture below. 8) Open the ball valve, please make sure that procedure 1~7 is operated properly before opening the ball valve. -
Page 14: Wiring For Terminal Board
3.1 Wiring for terminal board 3.1.1 Wiringfor 3-wire pulse output TGF450 use a current pulse output with 50% duty ratio. If the pulse reciving instrument require voltate pulse, please add a resistor between “ ” and “V-”, the resistance should be within 500ohms~1000ohms, and power consumption should be no less than 0.5W. -
Page 15: Shell Grounding And Elimination Of Interference
3.1.3 Wiringfor 3-wire HART@4~20mA 24V DC I+ I- P+ P+ Picture 3.4 Wiring of TGF450 4-wire HART@4~20mA 3.1.4 Wiring for RS485 I+ I- P+ P+ Picture 3.5 Wiring of TGF450 RS485 3.2 Shell grounding and elimination of interference In TGF450 thermal mass flowmeter the power supply of signal processing circuit is transferred from outside power supply by a isolation type DC-DC transmitter with advanced grounding technology . -
Page 16: 4 Display
3) Conduct wiring according to 3.2. 4) If possible, please conduct the wiring according to picture 3.6 to avoid the water get into the housing through the cable. Picture 3.6 Wiring instruction 4 Display TGF450 thermal mass flow meter provide with local display and setting. Users can display several variables on the local multi-funcational LCD display. -
Page 17: Unit Of The Variable Displayed
The LCD display has 2 areas to display the content, the upper row, the lower row. The upper row displays the flow rate/mass flow/standard flow rate. Below the upper row shows the unit of the variable displayed in upper row. The lower row display indicates other variables, such as temperature/ pressure/ total flow/ density. -
Page 18: Three Button Setting
4.3 Three button setting TGF450 series thermal mass flowmeter has three buttons on the top of the displayer, which are: ↔ (will be mentioned as “L-R button” below), (will be mentioned as “U-D button” below), (will be mentioned as “Enter button” below). Please reference to below picture Picture 4.5 buttons... -
Page 19: Status
Picture 4.7 Displaying the right digits According to picture 4.6 and 4.7, the total flow is 569864.581 kg. 4.5 Status TGF450 series thermal mass flowmeter have three different statuses as below Working status Setting status Calibration status When under working status,please follow the instruction in 4.1 to switch the parameter displayed. -
Page 20: Digital Setting
Picture 5.1 enter and quit code setting When in code setting, the first row will display the reference number of the code setting, and the lower row will display the contents of this parameter. The digit that is flashing is the digit under setting. - Page 21 Picture 5.3 Picture Enter or quit digital setting When in digital setting, the first row will display the reference number of the digital setting, and the lower row will display the contents of this parameter. The digit that is flashing is the digit under setting.
-
Page 22: Setting List
5.2 Setting list Please check chart 5.1 and 5.2 for code and digital setting address list. Chart 5.1 Code setting address Code setting Item Code Description of code address Start up time 01~99 Set the start up time within 1~99 seconds Display standard volume flow rate Density type Density preset, display mass flow... - Page 23 Code setting Item Code Description of code address Time unit for flow /min rate Mass unit Standard cubic meter Cubic meter Standard litre Volume unit for flow Litre rate Standard Cubic feet Gallon Imperial gallon Kpa (Absolute pressure) Kpa (Gauge pressure,minus sign for negative pressure ) Kpa (Gauge pressure) Mpa (Absolute pressure) Mpa (Gauge pressure,minus sign for negative pressure )
- Page 24 Code setting Item Code Description of code address Last paratmeter displayed in circle 00~05 Same as above display Lower 16bits address in front, the lower 8bits in the 16bits address in front Higher 16bits address in front, the Higher 8bits in the The date sequence of 16bits address in front IEEE formate float of...
-
Page 25: Chart 5.2 Digits Settingaddress
Chart 5.2 Digits settingaddress Code setting Item Code Description of code address D001 Max flow rate [-99999，999999] Unit is same as flow rate,Max/min flow rate of 4~20mA and 200~1000Hz output D002 Min flow rate [-99999，999999] Max frequency The frequency output of max flow, unit is D003 0.5~10000 output... -
Page 26: Example Of Setting
5.3 Example of setting Sample: For insertiong connecting, measure air in DN150 pipe, density preset, unit displayed in kg/hr, flow range of 0~4000kg/hr, 200~1000Hz output Address Code Description Density preset Code setting Frequency output Output parameter is flow rate D009 1.2930 Density=1.293 ,air 1.000 Factor =1 D008... -
Page 27: 6 Instruction Of Rs485 Modbus Communication
If a password has been set to a TGF450 thermal mass flowmeter, users can enter code setting C47=01 to set a new password. 6 Instruction of RS485 Modbus Communication 6.1 Interface regulation The communication interface should be RS485, the range of Baud rate should be 1200~115200. The wiring terminal is “A”... - Page 28 Chart 6.2 Address of code setting Register Usage Range Nature Date type 1000 Pre-heating time (warm up) C01 1~99 Read only Short 1001 Density compensation C02 Read/Write Short 1002 Method of pulse output Read/Write Short 1004 Output C05 Read/Write Short 1005 Pulse output parameter Read/Write...
-
Page 29: Commends
Digital setting address is as below. Chart 6.3 Address of digital setting Register Usage Restriction of Nature Date modification type 2000~2001 D001 Max flow -1e5~1e6 Read/Write Float 2002~2003 D002 Min flow -1e5~1e6 Read/Write Float 2004~2005 D003 Max frequency output 0~1e6 Read/Write Float 2006~2007... - Page 30 Function code 03 – Read register Request Response 01 : Address 01: Address 03 : Function code 03 : Function code 00 : Register address higher 04 : Quantity of bit 00 : Register address lower (display the address) 80 : Date 1 00 : Register number higher 04 : Date 2 02 : Register number lower...
-
Page 31: Calculation Of Crc Parity Code
Note: Function code 16 is supported to write float date. But for float date, the first register address and the quantity of the registers must be even, or writing is not allowed. 6.3 Calculation of CRC parity code. Request Response 01 : Address N1 CRC=0FFFFH is initial value 10 : Function code... -
Page 32: The Sequence Of The Float Date Bytes Of Instrument
6.5 The sequence of the float date bytes of instrument Code setting C40 is used for setting the sequence of the float date bytes of instrument. 1: LL_LH_HL_HH the lower 16 bytes registers come first, the lower 8 bytes within the 16 bytes registers come first. -
Page 33: Examples Of Communication
Code Name Meaning Illegal function Flowmeter can not process the function code in a command. Maybe code this function code can only be used on a new device, or it can also indicate that the flowmeter is under error statues. Illegal address The flowmeter can not process with the address in the command. -
Page 34: Command 0:Read Transmitter Unique Identifier
7.1.1 Command 0:Read transmitter unique identifier Command formate Return to the expension device type code, version number and identification number Request: None Response: Byte 0: Byte 1: Manufacture’s ID Byte 2: Manufacture’s device type Byte 3: Number of request preambles Byte 4: Revision level of universal command Byte 5:... -
Page 35: Command 3: Read Primary Variable Current And Dynamic Variables
Receive command 2: FF FF FF FF FF 86 9A 1A AD 18 8C 02 0A 00 00 40 80 00 00 00 00 00 00 7.1.4 Command 3: Read primary variable current and dynamic variables Command formate: Read the current of primary variable and 4 preset dynamic variables at maximum. The current of primary variable always match the AO output current of the instrument. -
Page 36: Command 11: Read Unique Identifier Associated With Tag
7.1.6 Command 11: Read unique identifier associated with Command formate: It is a date link manangment command. This command will return the device type, revision level and divice indentification number of the device which matches to the tag. Process the command upon receipt of the expension address or broadcast address. -
Page 37: Command 14: Read Primary Variable Sensor Information: Device Serial Number And Limits
Send command 13:FF FF FF FF FF 82 9A 1A AD 18 8C 0D 00 36 ;read device tag, descriptor and date Receive command 13:FF FF FF FF FF 86 9A 1A AD 18 8C 0D 17 00 00 50 11 E0 82 08 20 58 F4 94 15 88 06 30 F5 CD 15 41 52 0F 01 6F E2 7.1.9 Command 14: Read primary variable sensor information: device serial number and limits... -
Page 38: Command 17: Write Message
Command formate: Read final assembly number. Request: None Response: Byte 0-2: Final assembly number Test of command: Send command 16:FF FF FF FF FF 82 9A 1A AD 18 8C 10 00 2B; Read final assembly number Receive command 16: FF FF FF FF FF 86 9A 1A AD 18 8C 10 05 00 00 A8 36 81 35 7.1.12 Command 17: Write message Command formate: Write message... -
Page 39: Command 34: Write Primary Variable Damping Value
Byte 0-2: Final assembly number Test of command: Send command 19: FF FF FF FF FF 82 9A 1A AD 18 8C 13 03 01 02 03 2B ; Receive command 19: FF FF FF FF FF 86 9A 1A AD 18 8C 13 05 00 00 01 02 03 29 7.1.15 Command 34: Write primary variable damping value Command formate: Write primary variable damping value. -
Page 40: Command 37: Write Primary Variable Lower Limit Value
NONE Test of command: Send command 36: FF FF FF FF FF 82 9A 1A AD 18 8C 24 00 1F; Write the primary variable upper limit to current primary variable value. Receive command 36: FF FF FF FF FF 86 9A 1A AD 18 8C 24 02 00 00 19 7.1.18 Command 37: Write primary variable lower limit value Command formate:... -
Page 41: Command 46: Trim Primary Variable Current Dac Gain
Byte 0-3: Actual measured primary variable current level IEE 754 Test of command: Send command 45: FF FF FF FF FF 82 9A 1A AD 18 8C 2 D 04 40 80 00 00 D2 Receive command 45: FF FF FF FF FF 86 9A 1A AD 18 8C 2D 06 09 00 40 80 00 00 DD : response code is 09, device is not under correct current mode. -
Page 42: Replace A Transmitter Circuit Boards
8.2 Replace a transmitter circuit boards 1) Please make sure the power is off before replacing the transmitter. 2) Remove the front cover. 3) Loose the 4 screws on the circuit boards, than can take the boards out a little. 4) Remove all the plugs on the circuit board.then remove the circuit board away 5) Put the new circuit board in and put the plug on 6) Tighten the 4 screws on the board, tighten the front cover... -
Page 43: How To Clean The Sensors
8.4 How to clean the sensors The sensor itself can be dirt caused by the oil, dust, impurity and dirt in the fluid, which may cause effect on the measurement result. When it is necessary to clean the sensor, please remove the meter according to 8.3. - Page 44 After checking out above issues, please process trouble shooting according to following description. Problem Possible Cause Solution Very erractic or non-uniform Follow installation requirements flwo shown in Chapter 2 Flow meter installed with less than required minimum pip Follow installation requirements diameters upstream and dlown shown in Chapter 2 stream of the sensor...
-
Page 45: Self-Diagnose Function
9.3 Self-diagnose function TGF450 thermal mass flowmeter display can also indicate the self-diagnose code as below： Error code Problem Repair Err-003 Temperature sensor disconnected Check Temperature sensor Err-004 Pressure sensor disconnected Check pressure sensor Err-005 About to over total flow This is a reminding message The value is over the physical limit of the Err-006... -
Page 46: Appendix
Appendix Specification Insertion type In-line type Air, Nitrogen Media Compatibility Pipe diameter DN25~900mm DN15~300mm Flow velocity range 0.6~60Nm/s or 0.9~90Nm/s or 1.2~120Nm/s or 1.5~150Nm/s Accuracy 0.5% RD+ ±1.5% FS － 40~+150°c Temperature of medium Pressure of medium 1.6MPa 4.0Mpa AC85 ～ 265V or DC13.5 ～ 42V Power supply Response time 1 second... - Page 47 Size and dimension Nut sleeve insertion with ball valve DN25~DN400 (Please contact us if need to customized probe length) 1/2 ” NPT socket base for nut sleeve insertion Remark: R is the outer shape of the pipeline. The material can be same as the pipeling if required so. If customer’s chosen model require 1”...