Related Manuals for Longrun LRF-3000H
Summary of Contents for Longrun LRF-3000H
- Page 1 LRF-3000H Handheld Ultrasonic Flowmeter Revision：1.0.0 UpdateRecord：October,2018 - 1 -...
- Page 2 LRF-3000H Handheld Ultrasonic Flowmeter Notice Thank you for choosing the LRF-3000H Ultrasonic Flowmeter with SLSI CMOS and low-voltage wide-pulse transmission technology. This instruction manual contains important information. Please read carefully before operation of the flowmeter. WARNINGS IN THIS MANUAL Caution and warning statements are used throughout this book to draw your attention to important information.
- Page 3 LRF-3000H Handheld Ultrasonic Flowmeter Product Components An inspection should be made of the desired location before installing the flowmeter. Check to see if the spare parts are present in accordance with the packing list. Make sure that there is no shipping damage.
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Page 4: Table Of Contents
LRF-3000H Handheld Ultrasonic Flowmeter Table of Contents Electronics Installation and Connection ....... - 6 - 1.1. Power Supply Connections ............... - 6 - 1.1.1. Type of P ow er Supply ..................- 6 - 1.1.2. W iring ....................... - 6 - 1.2. - Page 5 LRF-3000H Handheld Ultrasonic Flowmeter 5.8.1. Specifications ....................- 17 - 5.8.2. I nstall or R em ove the SD card w hile the m eter is pow ered on ..... - 17 - 5.8.3. R eading the SD Data Ex ternally ..............- 18 - 5.8.4.
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Page 6: Electronics Installation And Connection
1.1.2. Wiring Open the hinged top cover of the electronics. Shown from left to right on the panel of the LRF-3000H are the downstream transducer connector, upstream transducer connector, the battery recharge port (charge the transmitter or connect to a standby power supply), and the 4~20mA output connector. -
Page 7: Keypad Functions
LRF-3000H Handheld Ultrasonic Flowmeter 1.3. Keypad Functions Follow these guidelines when using the flowmeter keypad: to input numbers. Backspace or delete characters to the left. Return to the last menu or open the next menu. Acts as “+” and “-” are used to enter numbers. -
Page 8: Flowmeter Menu Descriptions
LRF-3000H Handheld Ultrasonic Flowmeter Visit Selection Type menus to check the related options. If need to modify it, press first to Enter enter the revised selection when the symbol “>” and a flashing cursor are displayed at the left end of the third line on the screen;... -
Page 9: Pipe Parameter Entry Shortcuts
LRF-3000H Handheld Ultrasonic Flowmeter 2. Pipe Parameter Entry Shortcuts Example: Let us assume you have a DN200 (8”) pipe, measuring water, Material is carbon steel with no liner. These parameters should be entered as follows: Step 1. Pipe outside diameter... - Page 10 LRF-3000H Handheld Ultrasonic Flowmeter Step 5. Fluid type Press the key to enter menu 20, Menu Menu 20 press the key, use the Fluid Type key to select fluid type from the drop-down menu, then press the key. Water 14 : 55 : 58 Q = 97 Step 6.
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Page 11: Measurement Site Selection
LRF-3000H Handheld Ultrasonic Flowmeter 3. Measurement Site Selection When selecting a measurement site, it is important to select an area where the fluid flow profile is fully developed to guarantee a highly accurate measurement. Use the following guidelines to select a proper... -
Page 12: Transducer Installation
LRF-3000H Handheld Ultrasonic Flowmeter free of excessive corrosion or scaling. 4. Transducer Installation 4.1. Installing the Transducers Before installing the transducers, clean the pipe surface where the transducers are to be mounted. Remove any rust, scale or loose paint and make a smooth surface. Apply a wide band of sonic coupling compound down the center of the face of each transducer as well as on the pipe surface, and then attach the transducers to the pipe with the straps provided and tighten them securely. -
Page 13: Z Method
LRF-3000H Handheld Ultrasonic Flowmeter 4.1.3. Z Method The signal transmitted in a Z method installation has less attenuation than a signal transmitted with the V method. This is because the Z method utilizes a directly transmitted (rather than reflected) signal which transverses the liquid only once. -
Page 14: Transducer Mounting Inspection
LRF-3000H Handheld Ultrasonic Flowmeter 4.3. 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 15: Warnings
LRF-3000H Handheld Ultrasonic Flowmeter have been entered correctly, (2) If the transducer mounting spacing is accordance with the display in menu 25, (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 16: Operating Instructions
LRF-3000H Handheld Ultrasonic Flowmeter 5. Operating Instructions 5.1. System Normal Identification Press the keys. If the letter “*R” displays on the screen, it indicates system normal. Menu If the letter “E” is displayed, it indicates that the current loop output is over ranged by 120%. This refers to the settings in menu 57. -
Page 17: 4-20Ma Current Loop Verification
LRF-3000H Handheld Ultrasonic Flowmeter must be one that results from actual flow calibration. The scale factor can be entered via M45. 5.5. 4-20mA Current Loop Verification 4-20mA+ Blue 4-20mA- Black 4-20mA + 4-20mA - The 4~20mA current output connects to the 4-pin din jack on the panel. The color of cable core is blue （4-20mA+）and black (4-20mA-). -
Page 18: Sd Card Operation
LRF-3000H Handheld Ultrasonic Flowmeter Then press to enter the Current Loop Verification Mode, press to enter the 4mA verification Enter Enter status, use an accurate ammeter to measure the output current of the current loop, and move to adjust the displayed values, wait for the ammeter current value to reach “4mA”, then the 4mA verification is finished. -
Page 19: Reading The Sd Data Externally
LRF-3000H Handheld Ultrasonic Flowmeter ATTENTION Do not remove the SD card from the reader while actively collecting data. Processing the data directly from the SD card file location on the PC could result in lost or corrupt data if the SD card is removed while data is still being processed. -
Page 20: Esn
LRF-3000H Handheld Ultrasonic Flowmeter File name : 100308 +3.600000E+03m/h +3.152638E+003m/h 0000 : 08 Q = 97 3. After modification or to use the default value, press to store the data. The above picture shows Enter the normal operation interface. (If it does not work normally, will be shown as the picture below.) -
Page 21: Window Display Explanations
LRF-3000H Handheld Ultrasonic Flowmeter 6. Window Display Explanations 6.1. Window Display Codes Flow Totalizer Display Totalizer Reset Flow Rate/Net Totalizer Manual Totalizer Flow Rate/Velocity Setup Options Flow Rate/POS Totalizer Damping Flow Rate/NEG Totalizer Low Flow Cutoff Value Date Time/Flow Rate... -
Page 22: Display Explanation
LRF-3000H Handheld Ultrasonic Flowmeter 6.2. Display Explanation Menu Flow Rate／Net Totalizer Menu 00 Display flow rate and net Totalizer. Flow 30280m3/m *R If the net Totalizer has been turned off (refer to +22435575x1m3 M34), the net Totalizer value displayed is the total that existed prior to turning it off. - Page 23 LRF-3000H Handheld Ultrasonic Flowmeter Display the operating condition and the system error codes. More than one error code can occur Menu 08 at the same time. The explanations of error codes and detailed *Q -------------- resolution methods can be found in “Error No Signal Detected Diagnosis”.
- Page 24 LRF-3000H Handheld Ultrasonic Flowmeter Pipe Inner Diameter Enter the pipe inside diameter. If the pipe outside diameter and pipe wall thickness has been Menu 13 entered, press to skip this window. Pipe Inner Diameter Note: Enter either pipe wall thickness or pipe 588 mm inside diameter.
- Page 25 LRF-3000H Handheld Ultrasonic Flowmeter items. Once the “Other” is selected, the relevant liner sound velocity must be entered in Window M17. Menu 17 Menu Liner Sound Velocity Liner Sound Velocity Enter liner sound velocity. It only can be visited 1328m/s when item “...
- Page 26 LRF-3000H Handheld Ultrasonic Flowmeter Menu 22 Fluid Viscosity 1.0038 cST 14 : 56 : 09 Q = 97 Menu Transducer Mounting Menu 24 Four mounting methods are available: Transducer Mounting 0. V (sound wave bounces 2 times) 1. Z (sound wave bounces once. The most...
- Page 27 LRF-3000H Handheld Ultrasonic Flowmeter Menu Holding With Poor Sig Menu 28 Select “Yes” to hold last good flow signal displayed if the flowmeter experiences a poor temporary Holding with PoorSig signal condition. This function will allow continued data calculation without interruption.
- Page 28 LRF-3000H Handheld Ultrasonic Flowmeter Menu 32 Totalizer Units Cubic Meters (m3) 14 : 59 : 30 Q = 97 Menu Totalizer Multiplier Options The Totalizer multiplier acts as the function to Menu 33 increase the totalizer indicating range. Meanwhile, Totalizer...
- Page 29 LRF-3000H Handheld Ultrasonic Flowmeter Totalizer reset; all parameters are reset. Press Enter move arrow to select “YES” or “NO”. Menu 37 After “YES” is selected, the following options are Totalizer Reset available: Selection None, All, NET, POS, NEG If it is necessary to recover the factory default ,...
- Page 30 LRF-3000H Handheld Ultrasonic Flowmeter Set zero must be carried out after the transducers are installed and the flow inside the pipe is in the Menu 42 absolute static state (no liquid movement in the pipe). Thus, the“Zero Point” resulting from...
- Page 31 LRF-3000H Handheld Ultrasonic Flowmeter Menu 55 Menu CL 4mA Output Value CL Mode Select Set the CL output value according to the flow 0. 4 - 20mA value at 4mA. The flow unit’s options are as same as those in Window M31. Once “velocity...
- Page 32 LRF-3000H Handheld Ultrasonic Flowmeter Press wait until “>” appears, Enter modification can be made. Menu 60 HH : MM : SS YY - MM - DD 10 - 03 - 08 15 : 05 : 00 15 : 05 : 00...
- Page 33 LRF-3000H Handheld Ultrasonic Flowmeter that poor signal was detected at least once. Also, it indicates that the operation was interrupted or problems occurred in the installation. Menu Automatic Flow Correction With the function of automatic flow correction, the flow lost in an offline session can be estimated and automatically adjusted.
- Page 34 LRF-3000H Handheld Ultrasonic Flowmeter Menu 92 Fluid Sound Velocity 1482.6 m/s 15 : 08 : 56 Q = 97 Menu Total Time and Delta Time Display the measured ultrasonic average time (unit: nS) and delta time of the upstream and...
- Page 35 LRF-3000H Handheld Ultrasonic Flowmeter Menu Last Power Off Time Menu +2 Display the last power off time. Last Power Off Time 10 - 03 - 08 13 : 57 : 20 15 : 09 : 34 Q = 97 Menu...
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Page 36: Error Diagnosis
LRF-3000H Handheld Ultrasonic Flowmeter 7. Error Diagnosis The ultrasonic Flowmeter 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. Hardware error diagnostics are usually performed upon each power on. Some errors can be detected during normal operation. Undetectable errors caused by incorrect settings and unsuitable measurement conditions can be displayed accordingly. - Page 37 LRF-3000H Handheld Ultrasonic Flowmeter 7.2. Table 2. Error Codes and Solutions (during operation) Code M08 Display Cause Solution System Normal * System normal * No errors SCPU Fatal Error * Hardware defect * Contact the factory * Attach transducer to the pipe and tighten it securely.
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Page 38: Frequently Asked Questions And Answers
LRF-3000H Handheld Ultrasonic Flowmeter 7.3. 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 39: Product Overview
Product Overview 8.1 Introduction The Model LRF-3000H Handheld Ultrasonic Flowmeter is a state-of-the-art universal transit-time flowmeter designed using SLSI technology and low-voltage broadband pulse transmission. While principally designed for clean liquid applications, the instrument is tolerant of liquids with the small amounts of air bubbles or suspended solids found in most industrial environments. -
Page 40: Applications
LRF-3000H Handheld Ultrasonic Flowmeter 8.4. 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 41: Specifications
LRF-3000H Handheld Ultrasonic Flowmeter 8.5. Specifications Performance 0~40 ft/s （0～±12 m/s） Flow range Accuracy ±1% Repeatability 0.3% Linearity ±1% 1 in to 48 in（25～1200 mm） Pipe Size Functional Analog output： 4～20mA，Max 750Ω Output Storage：8GB SD card Max：512 files Interval：5～60 seconds 11.1V rechargeable Lithum Battery Power (continuous operation of... -
Page 42: Appendix1 - Flow Application Data
LRF-3000H Handheld Ultrasonic Flowmeter 9. Appendix1 - Flow Application Data 9.1 Sound Velocity and Viscosity for Fluids Commonly Used Sound Ethanol 1168 Fluid Velocity Viscosity 1440 Alcohol (m/s) 1620 Glycol water 20℃ 1482 1923 1180 Glycerin water 50℃ 1543 0.55 1250 0.80... - Page 43 LRF-3000H Handheld Ultrasonic Flowmeter t(℃) v(m/s) 1515.7 1554.0 1402.3 1554.3 1517.7 1407.3 1554.5 1519.7 1412.2 1554.7 1521.7 1416.9 1554.9 1523.5 1421.6 1555.0 1525.3 1426.1 1555.0 1527.1 1430.5 1555.1 1528.8 1434.8 1555.1 1530.4 1439.1 1555.0 1532.0 1443.2 1554.9 1533.5 1447.2 1554.8 1534.9...
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