Longrun LRF-3000H User Manual Download Page 44

Page: 44 / 44

LRF-3000H Handheld Ultrasonic Flowmeter

Summary of Contents for LRF-3000H

Page 1: ...LRF 3000H Handheld Ultrasonic Flowmeter 1 Revision 1 0 0 UpdateRecord October 2018...

Page 2: ...ple and equipment from harm or damage Pay very close attention to all warnings that apply to your application Failure to comply with these instructions may damage the meter ATTENTION Failure to comply...

Page 3: ...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 If you...

Page 4: ...nsducers 11 4 1 1 Transducer Mounting Methods 11 4 1 2 V Method 11 4 1 3 Z Method 12 4 1 4 N Method not commonly used 12 4 2 Transducers fixing 12 4 3 Transducer Mounting Inspection 13 4 3 1 Signal St...

Page 5: ...1 Introduction 38 8 2 Features of Flowmeter 38 8 3 Theory of Operation 38 8 4 Applications 2 8 5 Specifications 52 9 Appendix1 Flow Application Data 53 9 1 Sound Velocity and Viscosity for Fluids Com...

Page 6: ...itter or connect to a standby power supply and the 4 20mA output connector WARNING Wiring connections should be made when power is off 1 2 Powering on As soon as the flowmeter is switched on the self...

Page 7: ...25 is the mounting spacing between the transducers Each menu is discussed later in this manual To visit a specific menu press the Menu key at any time except the SD Card Storage Interface then input t...

Page 8: ...press the ENT key to confirm 1 5 Flowmeter Menu Descriptions 00 09 Display menus Used to display flow rate positive total negative total net total velocity date time etc 10 29 Setup menus Used to ent...

Page 9: ...pipe wall thickness wall thickness for various pipe schedules can be found in the appendix then press the ENT key Step 3 Pipe material Press the Menu 1 4 key to enter menu 14 press the ENT key use th...

Page 10: ...en press the ENT key Details on Charpter 4 1 Step 7 Transducer spacing Press the 2 5 key to enter menu 25 accurately install the transducer according to the displayed transducer mounting spacing and t...

Page 11: ...gh straight pipe length at least equal to the figure shown below for the upstream and downstream transducers installation Pump Valve Reduce Diffuser Tee 90o bend Straight length of downstream piping S...

Page 12: ...cannot be mounted horizontally symmetrically due to limitation of the local installation conditions it may be necessary to mount the transducers at a location where there is a guaranteed full pipe con...

Page 13: ...ducer Spacing Flow Side View Top View Section Pipe Strap Transducer 4 1 4 N Method not commonly used With the N method the sound waves traverse the fluid twice and bounce three times off the pipe wall...

Page 14: ...be slightly different System normal opperation requires signal strength over 60 0 which is detected from both upstream and downstream directions If the signal strength detected is too low the transduc...

Page 15: ...e mounting spacing is as calculated in menu 25 and the transducer is mounted at the pipe s centerline on the same diameter Note that you can adjust the spacing slightly as described above to fine tune...

Page 16: ...ults once the velocity increase over the low flow cutoff value 5 3 Zero Setting Once zero flow occurs a zero point is established i e as the measurement value reaches zero flow it indicates as zero It...

Page 17: ...A output by selecting Window M55 when flow direction is not an issue Enter 1000 in Window M56 and 2000 in Window M57 When flow direction is an issue an output of 0 4 20mA is available When the flow di...

Page 18: ...when is set to be less than 5 seconds it will default to 5 seconds Data content date and time flow velocity totalized flow positive totalizer and negative totalizer Data collection time user selctabl...

Page 19: ...the filename in Destination File xls then press Convert When OK is displayed means the conversion is completed 5 8 4 SD Card Storage Operation 1 Insert the SD card then press Data buttom to enter the...

Page 20: ...ess Data for 4 seconds then exit SD card storage open Menu 01 5 9 ESN We provide the flowmeter with a unique electronic serial number to identify each flowmeter for the convenience of the manufacturer...

Page 21: ...Pipe Setup Flow Units Options 30 Measurement Units 31 Flow Rate Units 32 Totalizer Units 33 Totalizer Multiplier 34 Net Totalizer 35 POS Totalizer 36 NEG Totalizer 37 Totalizer Reset 38 Manual Totaliz...

Page 22: ...s the total the total that existed prior to turning it off Menu 0 3 Flow Rate Negative Totalizer Display flow rate and negative Totalizer Select the negative Totalizer value in Window M32 If the negat...

Page 23: ...in window M11 Menu 1 1 Pipe Outside Diameter Enter the pipe outside diameter the pipe outside diameter must range from 10mm to 600mm Note Enter either the pipe outside diameter or pipe outer perimeter...

Page 24: ...be entered in Window M15 If sound velocity is not known there are other ways to determine it onsite Menu 1 5 Pipe Sound Velocity Enter pipe sound velocity This function is only used when item 9 Other...

Page 25: ...Oil 6 Propane 7 Butane 0 C 8 Other 9 Diesel Oil 10 Castor Oil 11 Peanut Oil 12 Gasoline 90 13 Gasoline 93 14 Alcohol 15 Water 125 C Menu 2 1 Fluid Sound Velocity Enter the fluid sound velocity It only...

Page 26: ...are available to load and save by three methods i e you can load and save 18 different applications 0 Entry to Save 1 Entry to Load 2 To Browse Select Entry to Save press Enter An ID code and the ori...

Page 27: ...indow to ensure no measurement when the pipe is empty It should be understood that the instrument is NOT designed to function correctly on an empty pipe Menu 3 0 Measurement Units Select the measureme...

Page 28: ...tes it is turned off When it is turned off the net totalizer displays in Window M00 will not change Factory default is ON Menu 3 5 ON OFF POS Totalizer On off positive totalizer ON indicates the flowm...

Page 29: ...ff Value If the flow rate falls below the low flow cutoff value the flow indication is driven to zero This function can prevent the flowmeter from reading flow after pump shut down but there is still...

Page 30: ...S reset Zero Point which was set by the user Menu 4 4 Manual Zero Point This method is not commonly used It is only suitable for experienced operators to set zero under conditions when it is not prefe...

Page 31: ...ith an ammeter to verify that CL output terminals M31 and 32 agree with the displayed values It is necessary to re calibrate the CL if it is over the permitted tolerance For more information refer to...

Page 32: ...ssible to review the historical flow data Totalizer for any day for the last 64 days any month for last 64 months and any year for last 5 years Press Enter use the or to review Totalizer in days month...

Page 33: ...signal strength should be 60 0 Signal quality Q is indicated by 00 99 Therefore 00 indicates the poorest signal while 99 indicates the best signal Normally signal quality Q value should be better than...

Page 34: ...is the average of the line and surface velocity factor inside the pipe Menu 0 Power ON OFF Time To view the power on off time and flow rate for the last 64 update times to obtain the offline time per...

Page 35: ...off time Menu 3 Last Flow Rate Display the last flow rate Menu 4 Total ON OFF Times Display total on off times since the flowmeter left the factory Menu 2 Last Power Off Time 10 03 08 13 57 20 15 09 3...

Page 36: ...this occurs it is necessary to power on for self diagnostics once again to detect and solve possible errors using the table below If a problem still exists please contact the factory or the factory s...

Page 37: ...saturated H Low Signal Strength Low signal strength Cause refers to above mentioned reasons Solution refers to above mentioned solutions H Poor Signal Quality Poor signal quality All reasons are inclu...

Page 38: ...free of scale inside the pipe and that the pipe is concentric not distorted so that the sound waves do not bounce outside of the proposed area For pipe with thick scale inside or outside try to clean...

Page 39: ...ast 64 days and months as well as for the last 5 years are may be viewed Power on off function allows the viewing of time and flow rate as power is switched on and off 64 times Also the flowmeter has...

Page 40: ...management system Metallurgy and mining applications cooling water and acid recovery for example Petroleum and chemicals Food beverage and pharmaceutical Marine operation and maintenance Energy econom...

Page 41: ...SD card Storage 8GB Max 512 files Interval 5 60 seconds Power Supply 11 1V rechargeable Lithum Battery Power continuous operation of main battery 16 hours Keypad Tactile Keys Display 64 128 alphanume...

Page 42: ...ol 1620 Glycerin 1923 1180 Gasoline 1250 0 80 Benzene 1330 Toluene 1170 0 69 Kerosene 1420 2 3 Petroleum 1290 Retinal 1280 Aviation kerosene 1298 Peanut oil 1472 Castor oil 1502 9 2 Sound Velocity for...

Page 43: ...2 1532 0 43 1533 5 44 1534 9 45 1536 3 46 1537 7 47 1538 9 48 1540 2 49 1541 3 50 1542 5 51 1543 5 52 1544 6 53 1545 5 54 1546 4 55 1547 3 56 1548 1 57 1548 9 58 1549 6 59 1550 3 60 1550 9 61 1551 5 6...

Page 44: ...LRF 3000H Handheld Ultrasonic Flowmeter 55...

Search results

Summary of Contents for LRF-3000H

Reviews:

Related manuals for LRF-3000H

Brands by name

Popular brands

Longrun LRF-3000H, User Manual

Search results

Summary of Contents for LRF-3000H

Reviews:

Related manuals for LRF-3000H

Brands by name

Popular brands