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Longrun LRF-3300S User Manual

Ultrasonic flowmeter
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  • Page 1 LRF-3300S Ultrasonic Transit-time Flow meter - 1 -...
  • Page 2 LRF-3300S Ultrasonic Transit-time Flow meter Notice Thank you for choosing the LRF-3300S Ultrasonic Flow meter. Place read the instruction manual carefully before you use the flow meter to avoiding the damage to the flow meter or improper use. Warning May cause injury.
  • Page 3 LRF-3300S Ultrasonic Transit-time Flow meter Product Components Inspection should be made before installing the Flow meter. Check to see if the spare parts are in accordance with the packing list. Make sure that there is no damage to the enclosure due to a loose screw or loose wire, or other damage that may have occurred during transportation.

  • Page 4: Table Of Contents

    LRF-3300S Ultrasonic Transit-time Flow meter Content Transmitter Installation and Connection ......................-5- 1.1. Transmitter Installation .......................... -5- 1.2. Wire Connecting ..........................- 6 - 1.2.1 Power supply option ........................- 6 - 1.2.2 Transmitter Wiring ........................- 6 - 1.3. Powering on ............................- 7 - 1.4.
  • Page 5 6.2. Frequently Asked Questions and Answers ..................- 41 - Product Overview ............................- 42 - 7.1. Introduction ............................- 42 - 7.2. Features of LRF-3300S ........................- 42 - 7.3. Theory of Operation .......................... - 42 - 7.4. Applications ............................- 43 - 7.5.

  • Page 6: Transmitter Installation And Connection

    LRF-3300S Ultrasonic Transit-time Flow meter 1. Transmitter Installation and Connection 1.1. Transmitter Installation There is a "Position Drawing" in the packing. Please use it as a template in the place that you are going to install the flow meter. Choose the corresponding to the four mounting holes to drill at the screw position shown on the drawing with the 6 mm drill.

  • Page 7: Wire Connecting

    LRF-3300S Ultrasonic Transit-time Flow meter 1.2. Wire Connecting 1.2.1 Power supply option Customers should pay special attention to specify the desired power supply when wiring. Factory standard power supply is 90 ~ 245 VAC. To ensure the transmitter can work normally, please pay attention to the followings when wiring: Ensure that power connections are made in accordance with the specifications shown on the transmitter.

  • Page 8: Powering On

    LRF-3300S Ultrasonic Transit-time Flow meter 1.3. Powering on As soon as the flow meter is switched on, the system will run automatically according to the last input parameters. If the installation is accomplished when system is switched on, gain adjustment can be monitored in Window M04.

  • Page 9: Keypad Operation

    LRF-3300S Ultrasonic Transit-time Flow meter 1.5. Keypad Operation The flow meter adopts the window software design to consolidate or subdivide all of the parameters entered, the instrument setup and measurement result displays into independent windows. The operator can input parameters, modify settings or display measurement results by "visiting"...
  • Page 10 LRF-3300S Ultrasonic Transit-time Flow meter Step2. Pipe Material Pipe settings to switch to select the material of the pipe. Size And press the to confirm. 0.PVC Other 3200 Step2. Pipe Lining Lining Find M11, select the pipe liner. We select 0. No liner here.

  • Page 11: Measurement Site Selection

    LRF-3300S Ultrasonic Transit-time Flow meter Step 6. Installation Spacing INSTL Spacing Find M14, accurately install the transducer according to the displayed transducer mounting spacing and the selected mounting method. Value 154.2 Step 7. Display Measurement Results Flow Rate Menu 01 will display flow rate. (Subject to the real measurement.
  • Page 12 LRF-3300S Ultrasonic Transit-time Flow meter - 11 -...

  • Page 13: Transducer Installation

    LRF-3300S Ultrasonic Transit-time Flow meter 3. Transducer Installation 3.1. Transducer Installation Please make sure the pipe surface where the transducers are to be mounted are all clean. Including the rust, scale or loose paint to have a smooth surface. Choose the section and don’t forget apply the coupling compound. Apply...

  • Page 14: Z Method

    LRF-3300S Ultrasonic Transit-time Flow meter Top View 3.1.4 Z Method The signal transmitted in a Z method installation has less attenuation than a signal transmitted with the V method When the pipes are too large, there are some suspended solid in the fluid, or the scaling and liner are too thick.

  • Page 15: Transducer Mounting Inspection

    LRF-3300S Ultrasonic Transit-time Flow meter 3.2. Transducer Mounting Inspection Check to see if the transducer is installed properly and if there is an accurate and strong enough ultrasonic signal to ensure proper operation and high reliability of the transducer. It can be confirmed by checking the detected signal strength, total transit time, delta time as well as transit time ratio.

  • Page 16: Warnings

    LRF-3300S Ultrasonic Transit-time Flow meter been entered correctly, (2) If the transducer mounting spacing is accordance with the display in Window M14, (3) If the transducer is mounted at the pipe’s centerline on the same diameter, (4) If the scale is too thick or the pipe mounting is distorted in shape, etc.

  • Page 17: Operating Instructions

    LRF-3300S Ultrasonic Transit-time Flow meter 4. Operating Instructions 4.1. System Normal Identification If the letter "*R" displays on the screen, it indicates system normal. If the letter "D" is displayed, it indicates that system is adjusting the signal gain prior to the measurement. Also, it means system normal.

  • Page 18: System Lock

    LRF-3300S Ultrasonic Transit-time Flow meter 4.5. System Lock System lock is intended to prevent operation error due to tampering by unauthorized personnel. M54 is for system lock, unlock it by using the selected password only. If "lock” is displayed on the screen, then enter the correct password.

  • Page 19: Totalizer Pulse Output

    LRF-3300S Ultrasonic Transit-time Flow meter 4.8. Totalizer Pulse Output Each time the flow meter reaches a unit flow, it may generate a totalizer pulse output to a remote counter. The totalizer pulse output can be transmitted through OCT or a relay. Therefore, it is necessary to configure OCT and the relay accordingly.

  • Page 20: Sd Card Operation

    LRF-3300S Ultrasonic Transit-time Flow meter to switch calibrate the current loop 4mA output. Use an ammeter to measure the output current of current loop and adjust the displayed numbers at the same time. Watch the ammeter until it reads 4.00.

  • Page 21: Esn

    LRF-3300S Ultrasonic Transit-time Flow meter Attention: Do not remove the SD card from the reader while actively working with the data. Data should be saved and stored in a separate location on the PC, and then processed form that file location.

  • Page 22: Windows Display Explanations

    LRF-3300S Ultrasonic Transit-time Flow meter 5. Windows Display Explanations 5.1. Windows Display Codes Easy Introduction A class of the menu M00 Flow Totalizer Display M01 Flow Rate Value and Condition *R- System Normal M02 Energy Totalizer *E - Signal Not Detected...
  • Page 23 LRF-3300S Ultrasonic Transit-time Flow meter M35 Alarm Value Settings Input and Output Settings M36 Flow Batch Settings M37 Micro SD Settings M40 Metric system Units M41 Flow Rate Units Flow Unit Opinions M42 BTU Units M43 Temperature Units M50 Serial Number...

  • Page 24: Display Explanations

    LRF-3300S Ultrasonic Transit-time Flow meter 5.2. Display Explanations Flow Total Flow Total Display Net Totalizer. Display Positive totalizer. Display Negative totalizer. 123.4 to switch. Flow Total 123.4 Flow Rate Flow Rate Flow Vel. Display the Flow Rate. Display the Velocity.
  • Page 25 LRF-3300S Ultrasonic Transit-time Flow meter Energy Total Energy Total Display the Totalizer Heat Capacity Display theTotalizer Cool Capacity. Heat Cool to switch. 234.5 NOTE: Instrument needs energy capacity. Energy Total Heat Cool 201.6 Energy Rate Energy Rate Display the Energy Rate.
  • Page 26 LRF-3300S Ultrasonic Transit-time Flow meter Status Status Display the Signal strength, the Upstream signal strength and Downstream signal strength. Signal Sound Time Signal quality Q is indicated by 00 ~ 99. Therefore, 00 indicates the poorest signal while 99 indicates the best signal.
  • Page 27 LRF-3300S Ultrasonic Transit-time Flow meter Pipe settings Pipe settings Size Enter the pipe outer diameter; the pipe outer diameter must range from 10mm to 6000mm. 108.0 Note: Enter Either pipe outer diameter or pipe outer perimeter Enter the pipe wall thickness. Pipe wall thickness is necessary.
  • Page 28 LRF-3300S Ultrasonic Transit-time Flow meter 2. Rubber Lining 3. Mortar 4. PP Polypropylene Size 5. Polystryol 0.No Liner 6. PS Polystyrene 7. Polyester Other 2400 8. PE Polyethylene 9. Ebonite 10. Teflon 11. Other Item 11 "Other" is available to enter other materials that are not included in previous ten items.
  • Page 29 LRF-3300S Ultrasonic Transit-time Flow meter that are not included in previous ten items. Once the "Other" is selected, the relevant liner sound velocity must be entered. to switch. Transducer Transducer Type Method Select transducer type Option 0.Clamp-On The following options are available: 0.
  • Page 30 LRF-3300S Ultrasonic Transit-time Flow meter Low Vel. Cut off Low Vel. Cutoff Low Flow Cut off is used to make the system display as "0" value at lower and smaller flows to avoid any invalid totalizing. For example, if the cutoff value is set as 0.03, system will take all the measured flow...
  • Page 31 LRF-3300S Ultrasonic Transit-time Flow meter Select the totalizer type Totalizer 0. POS Positive Totalizer 1. NEG Negative Totalizer Switch Reset 2. NET Flow 0.POS 0.ON Select energy type 0. Heat Energy 0.Heat 0.ON 1. Cool Select "ON"/"OFF" to switch the totalizer.
  • Page 32 LRF-3300S Ultrasonic Transit-time Flow meter 1. Other Temperature to switch. Source SSTV Option 0.CJ128 3。 Other KJ/m Power Down Correction Switch With the function of power down automation correction switch, the flow lost in an offline session can be estimated and automatically adjusted. The...
  • Page 33 LRF-3300S Ultrasonic Transit-time Flow meter 1. 4800 None RS232/RS485 2. 9600 None 3. 19200 None 4. 38400 None Option 0.2400 None 5. 56000 None AI Setting AI Settings Display analog input AI1 analog value. LowerL UpperL 1000.0 Display analog input AI2 analog value.
  • Page 34 LRF-3300S Ultrasonic Transit-time Flow meter CL Settings Mode Range Check Option a.Check 4mA OCT Setting The following signal options are available: a. Flow Rate b. POS Total OCT Settings c. NEG Total Mode Range Check d. NET Total e. Energy Rate Option a.Flow Rate...
  • Page 35 LRF-3300S Ultrasonic Transit-time Flow meter OCT Settings Select the OCT Range value. Mode Range Check LowerL OCT check opinions a. Check 500 UpperL 1000.0 b. Check 1000 c. Check 3000 d. Check 5000 OCT Settings Mode Range Check Option a.Check 500...
  • Page 36 LRF-3300S Ultrasonic Transit-time Flow meter Alarm Settings Enter the Upper alarm value, any of the measured flow, which is higher than the high value, will Alarm1 Alarm2 activate the alarm in the OCT hardware or relay output signal. LowerL UpperL 1000.0...
  • Page 37 LRF-3300S Ultrasonic Transit-time Flow meter 7. Imperial Barrels (Imp bbl) Flow Unit 8. Oil Barrels (Oil bbl) The following time units are available: /Day /Hour Unit MULT. /Min /Sec Factory default is Cubic Meters/hour. Option d. *1 x 0.001 (E-3) x 0.01(E-2)
  • Page 38 LRF-3300S Ultrasonic Transit-time Flow meter TEMP Unit Serial Number 。 Option Display electronic serial number (S/N) of the instrument. This S/N is the only one assigned to each flow meter ready to leave the factory. The factory uses it for files setup and for management by the user.
  • Page 39 LRF-3300S Ultrasonic Transit-time Flow meter System Lock Initial Menu Lock the instrument. Once the system is locked, any modification to the system is prohibited, but the parameter is readable. Entering your designated password correctly can be the only way to "Unlock".
  • Page 40 LRF-3300S Ultrasonic Transit-time Flow meter Running Time Value RTD Adjust This menu is for the RTD calibration; enter the pass word to adjust. CL Adjust Enter to go 20mA Enter to go RTD Adjust This menu is for the AI calibration; enter the pass RTD Adjust word to adjust.

  • Page 41: Error Diagnoses

    LRF-3300S Ultrasonic Transit-time Flow meter 6. Error Diagnoses The ultrasonic flow meter has advanced self-diagnostics functions and displays any errors in the upper right corner of the LCD via definite codes in a date/time order. Some errors can be detected during normal operation.

  • Page 42: Frequently Asked Questions And Answers

    LRF-3300S Ultrasonic Transit-time Flow meter 6.2. Frequently Asked Questions and Answers Question: New pipe, high quality material, and all installation requirements met: why still no signal detected? Answer: Check pipe parameter settings, installation method and wiring connections. Confirm if the coupling compound is applied adequately, the pipe is full of liquid, transducer spacing agrees with the screen readings and the transducers are installed in the right direction.

  • Page 43: Product Overview

    At the same time LRF-3300S has our unique calculate software to ensure the high accuracy and low velocity response.

  • Page 44: Applications

    LRF-3300S Ultrasonic Transit-time Flow meter 7.4. Applications  Water, sewage ( with low particle content ) and seawater;  Water supply and drainage water;  Power plants ( nuclear power plant, thermal and hydropower plants ), heat energy, boiler feed water and energy management system;...

  • Page 45: Specifications

    LRF-3300S Ultrasonic Transit-time Flow meter 7.5. Specifications Performance specifications Flow Rage 0 ft/s ~ ± 40 ft/s ( 0 m/s ~ ± 12 m/s ). Accuracy ± 0.5% of measured value. Repeatability 0.1%. 1″ ~ 200″ ( 25 mm ~ 5000 mm ).

  • Page 46: Appendix3 Serial Interface Network Use And Communications Protocol

    LRF-3300S Ultrasonic Transit-time Flow meter 8. Appendix3 Serial Interface Network Use – and Communications Protocol 8.1. Overview The flow meter has perfect communication protocol. It can also be connected to a RS-485 Modbus . Two basic schemes can be chosen for networking, i.e. the analog current output method only using the flow meter or the RS232 communication method via serial port directly from the flow meter.

  • Page 47: Direct Connection Via Rs232 To The Host Device

    LRF-3300S Ultrasonic Transit-time Flow meter 8.3. Direct connection via RS232 to the host device See the below list of flowmeter serial port definitions. 8.4. Communications protocol and the use The flow meter supports these three communication protocols: FUJI Protocol, MODBUS-C Protocol, MODBUS-I Protocol.
  • Page 48 LRF-3300S Ultrasonic Transit-time Flow meter Return net accumulative flow RTN(cr)(lf) ± ddddddd.d± d(cr) Return net accumulative energy(hot) RTH(cr)(lf) ± ddddddd.d± d(cr) Return net accumulative energy(cold) RT-(cr)(lf) ± ddddddd.d± d(cr) RER(cr)(lf) Return instantaneous energy value ± d.ddddddE± dd(cr) Return analog input...

  • Page 49: Modbus-I Communication Protocol

    LRF-3300S Ultrasonic Transit-time Flow meter 0AH) return data =2BH+31H+32H+33H+34H+35H+ 36H+37H+45H+2BH+30H+6DH+33H+20H=2F7, The low 8-bit data of its binary is F7. Therefore, the data of the order PRT (cr) (lf) is called + 1234567E + 0m3!F7 (cr) (lf), "!"For delimiters, the preceding is the character of the summation, followed by a check code of 1 byte.
  • Page 50 LRF-3300S Ultrasonic Transit-time Flow meter The host sends a command to write a single register information frame format ( function code 0x06 ): Slave Address Operation Register Address Register Data Verify Code Function Code 1 byte 1 byte 2 bytes...
  • Page 51 LRF-3300S Ultrasonic Transit-time Flow meter For example, to read address 1 (0x01) of the flowmeter 40002 register data in the RTU mode, the flowmeter considers it to be invalid data, and sends the following command: 0x01 0x03 0x00 0x01 0x00 0x01...
  • Page 52 LRF-3300S Ultrasonic Transit-time Flow meter Net total – high word $000F 40016 Net total – exponent $0010 40017 16 bits int. Energy flow – low word $0011 40018 32 bits int. Energy flow – high word $0012 40019 Energy total(hot) –low word...
  • Page 53 LRF-3300S Ultrasonic Transit-time Flow meter $0041 40066 Energy rate unit – char 3,4 $0042 40067 Energy total unit – char 1,2 String $0043 40068 Instrument address –low word 32 bits real $0044 40069 Instrument address –high word Serial number – char 1,2...
  • Page 54 LRF-3300S Ultrasonic Transit-time Flow meter 4. "mg" －Million Gallons －Cubic Feet 5. "cf" －US Barrels 6. "ba" －Imperial Barrels 7. "ib" －Oil Barrels 8. "ob" The following energy units are available： －Giga Joule 0. "GJ" 1. "Kc" －Kilocalorie 2. "MB" －MBtu －Kilojoule...

  • Page 55: Appendix6 - Flow Application Data

    LRF-3300S Ultrasonic Transit-time Flow meter 9. Appendix6 - Flow Application Data 9.1. Sound Velocity and Viscosity for Fluids Commonly Used Sound Ethanol 1168 Fluid Viscosity Velocity (m/s) Alcohol 1440 water 20℃ 1482 Glycol 1620 water 50℃ 1543 0.55 Glycerin 1923 1180 water 75℃...

  • Page 56: Sound Velocity For Various Materials Commonly Used

    LRF-3300S Ultrasonic Transit-time Flow meter 9.2. Sound Velocity for Various Materials Commonly Used Pipe Material Sound Velocity (m/s) Liner Material Sound Velocity Steel 3206 Teflon 1225 2286 Titanium 3150 Cement 4190 Aluminum 3048 Bitumen 2540 Brass 2270 Porcelain enamel 2540...

  • Page 57: Sound Velocity In Water (1 Atm) At Different Temperatures

    LRF-3300S Ultrasonic Transit-time Flow meter 9.3. Sound Velocity in Water (1 atm) at different temperatures t(℃) v(m/s) t(℃) v(m/s) t(℃) v(m/s) 1402.3 1517.7 1554.3 1407.3 1519.7 1554.5 1412.2 1521.7 1554.7 1416.9 1523.5 1554.9 1421.6 1525.3 1555.0 1426.1 1527.1 1555.0 1430.5 1528.8...
  • Page 58 LRF-3300S Ultrasonic Transit-time Flow meter - 57 -...

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