PROCESS CENTER LRF-2000H Manual

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LRF-2000H Ultraljud med Clamp On sensorer

www.processcenter.se

Manual

Process Center AB

Skogsbrynsvägen 8 C

236 31 Höllviken

040 452900

info@processcenter.se

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Page 1 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Manual Process Center AB Skogsbrynsvägen 8 C 236 31 Höllviken 040 452900 info@processcenter.se...
Page 2: Table Of Contents
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Contents 1. Introduction ............................1 §1.1 Preface ..........................1 §1.2 Main Features ........................1 §1.3 Principle of Measurement ....................2 §1.4 Packing List (Standard Configuration) ................2 §1.5 Front view..........................3 §1.6 Typical Applications ......................
Page 3 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 4. How To ............................22 4.1 How to judge if the instrument works properly ..............22 4.2 How to judge the liquid flowing direction ................22 4.3 How to change between units systems ................. 23 4.4 How to select a required flow rate unit ................
Page 4 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 5.Troubleshooting ..........................38 §5.1 Power-on Error Displays and Counter-Measures .............. 38 §5.2 Error Code and Counter-Measures..................38 §5.3 Other Problems and Solutions .................... 39 6. Communication Protocol........................ 42 §6.
Page 5: Introduction
English and Chinese languages and small-sized PCB board, all these features combine to make the LRF-2000H ultrasonic flow meter the best and the biggest seller on the Chinese market. Moreover, it is gaining more and more recognition on the international flow meter market §1.2 Main Features...
Page 6: Principle Of Measurement
* RS-232 serial interface §1.3 Principle of Measurement The LRF-2000H ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non-fouling operation and easy installation.
Page 7: Front View
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Name QTY (pcs) Main Unit Medium transducer Ultrasonic signal cable Data line AC adapter Coupling agent Belt stretcher Tape User manual Carrying case §1.5 Front view Process Center AB Skogsbrynsvägen 8 C...
Page 8: Typical Applications
§1.6 Typical Applications The LRF-2000H flow meter can be virtually applied to a wide range of measurements. A variety of liquid applications can be accommodated: ultra-pure liquids, potable water, chemicals, raw sewage, reclaimed water, cooling water, river water, plant effluent, etc.
Page 9 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com unlocking Display 4x8 Chinese characters or 4x16 English letters RS-232, baud-rate: from 75 to 57600. Protocol made by Communication the manufacturer and compatible with that of the FUJI Interface ultrasonic flow meter.
Page 10: Starting Measurement
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se 2. Starting Measurement §2.1 Built-in Battery The instrument can operate either from the built-in Ni-H rechargeable battery, which will last over 12 hours of continuous operation when fully recharged, or from an external AC/power supply from the battery charger.
Page 11: Keypad
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com The flow measurement program always operates in the background of the user interface. This means the flow measurement will keep on running regardless of any user menu window browsing or viewing. Only when the user enters new pipe parameters will the flow eter change measurement to the new parameter changes.
Page 12: Steps To Configure The Parameters
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com There are 2 methods to enter certain menu window: (1) Direct going/entering. The user can press the MENU key followed by two-digit number keys. For example, the menu window M11 is for the entering of pipe outer diameter. The...
Page 13 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com *Standard pipe materials and standard liquids refer to those with the sound parameters that have already been programmed into software of the flow meter, therefore there is no need to configure them Liner material and its sound speed and thickness, if there is any liner.
Page 14: Transducers Mounting Allocation
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com M90; press ENT key to return. Press the dot key to go to M11 (3) When the window display is under M25, press ENT key to go to M01.
Page 15: Transducers Installation
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com traveling. Such conditions will make the measurement very difficult. Whenever possible, try to avoid this kind of pipes. If impossible, try our plug-in transducers that are installed permanently on the pipe by drilling holes on the pipe while liquid is running inside.
Page 16 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Process Center AB Skogsbrynsvägen 8 C 236 31 Höllviken 040 452900 info@processcenter.se...
Page 17: Z-Method Installation
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com §2.7.3 Z-method Installation Z-method is commonly used when the pipe diameter is above 200mm. §2.7.4 W-method Installation W-method is usually used on plastic pipes with a diameter from 15mm to 50mm.
Page 18: Installation Checkup
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com §2.8 Installation Checkup Through the checkup of the installation, one can: check the receiving signal strength, the signal quality Q value, the traveling time difference of the signals, the estimated liquid speed, the measured traveling time of the signals and the calculated traveling time ratio.
Page 19: Time
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com T he total transit time should remain stable or vary little. If the delta time fluctuates higher than 20%, it means there are certain kinds of problems with the transducer installation.
Page 20: Menu Window Details
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se 3. Menu Window Details §3.1 Menu Windows Arrangement M00~M09 windows for the display of the flow rate, velocity, date time, totalizers, battery voltage and estimated working hours for the battery. M10~M29 windows for entering the pipe parameter.
Page 21 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Display date and time, velocity, signal strength, signal quality and working status Display the wave shape of the receiving signal Dispay the battery terminal voltage and its estimated lasting time...
Page 22 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Window for selecting the proper transducers There are 14 different types of transducers for selection. If the user-type-transducers are used, 4 user type wedge parameters, which will be prompted by the software, should be entered following.
Page 23 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com restoration Press-a-key-to-run or to stop totalizer for easier calibration Operational interface language selection in Chinese and English. This selection makes it possible that more than 2 billions of people on the world can read the menu.
Page 24 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Not used 99-year calendar. Press ENT for modification. Use the dot key to skip the digits that need no adjusting. Display Version information and Electronic Serial Number (ESN) that are unique for each LRF-2000 series flow meter.
Page 25 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Not used Not used Not used Not used Not used Display signal strength, signal quality, time ratio on the upper right corner. Displays the Time Ratio between the Measured Total Transit Time and the Calculated time.
Page 26: How To
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 4. How To 4.1 How to judge if the instrument works properly Enter into M08, if ‘R’ is displayed on the screen, the instrument is working properly, If 'E' is displayed, the current loop output is over-ranged. Increasing the range setting in M57 will make the 'E' letter disappear.
Page 27: How To Change Between Units Systems
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Make sure that the instrument works properly Check the flow rate for the indication. If the displayed value is POSITIVE, the direction of the flow will be from the A transducers to the B transducers; if the displayed value is NEGATIVE, the direction will be from the B transducers to the A transducers;...
Page 28: How To Open Or Shut The Totalizers
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 4.6 How to open or shut the totalizers Use M34, M35 and M36 to turn on or turn off the POS, NEG, or NET totalizer respectively. 4.7 How to reset the totalizers Use M37 to reset the proper totalizer.
Page 29: How To Use The Zero-Cutoff Function
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 4.10 How to use the zero-cutoff function The number displayed in window M41 is called the lower flow rate cut-off value. The flow meter will replace these flow rate values that are absolutely less than the low-cutoff value with ‘0’.
Page 30: How To Use The System Locker
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 4.13 How to use the system locker The system locker provides a means of preventing inadvertent configuration changes or totalizer resets. When the system is locked, menu window browsing can be done without affecting any change, but any modifications are prohibited.
Page 31: How To Use The Frequency Output
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Example B: flow rate range is -500-0-1000m /h. If flow direction is not an issue for you, you may select 20-4-20mA mode in M55. Then, enter 500 in M56 and 1000 in M57. If flow direction is an issue, you may select 0-4-20mA mode in M55.
Page 32: How To Use The Totalizer Pulse Output
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com configured for the setups. Enter the lower flow rate value in window M68 and the higher flow rate value in window M69. Enter the frequency range in window M67.
Page 33 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Select the output option ‘9. POS INT Pulse’ under window M77. (INT stands for totalized ) .17 How to produce an alarm signal There are 2 types of hardware alarm signals that are available with this instrument. One is the Buzzer, and the other is the OCT output.
Page 34: How To Use The Built-In Buzzer
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Example C: assume we need the OCT output to activate when flow rate exceeds 100~500m /h and the relay output to activate when flow rate exceeds 600~1000m3/h. The following setup steps would be recommended:...
Page 35: How To View The Date Totalizers
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com insignificant amount of power supply. Modification will be required only in such cases as when the battery is totally consumed, or when the changing of the battery takes a long time.
Page 36: How To Check The Esn And Other Minor Detail
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 4.25 How to check the ESN and other minor detail Every set of the LRF-2000S flow meter utilizes a unique ESN to identify the meter. The ESN is an 8-digit number that provides the information of version and manufacturing date.
Page 37: How To Use Rs232/Rs485
LRF-2000H Ultraljud med Clamp On sensorer Your flow measurement expert www.ultrasonicscn.com www.processcenter.se 4.29 How to use RS232/RS485? Use menu window 62 to set up RS232/RS485. All the devices connected with flow meter should have matched serial configuration. The following parameters can be configured: Baud rate (300 to 19200 bps), parity, data bits (always is 8), stop bits (1).
Page 38: How To Solidify The Parameters
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com in menu 58 is different with the actual current output, please do not do this operation. Press keys MENU 0 , use the password ”4213068” to enter the window. Notice: the window will close after power off and the password will become invalid then.
Page 39: How To Enter Into The Linearity Correcting? How To Enter Into The Data
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com The following windows will be displayed one by one, each window will stay for 8 seconds: M95>>M00>>M01>>M02>>M02>> M03>>M04>>M05>>M06>>M07>>M08>>M90>>M91>>M92>> M93>> M94>>M95. This function allows the user to visit all the important information without any manual action.
Page 40 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com set of data is used to facilitate to generated a appropriate correction factor when Instrumented show flow under 1.02 m /h. (100000 m /h, 1.0) is called the maximum flow of the amendment point, this set of data is used to facilitate to generated a appropriate correction factor when Instrumented show flow above 50.56 m...
Page 41: How To Save / Restore Frequently-Used Pipe Parameters
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 4.37 How to save / restore frequently-used pipe parameters You can use menu window 27 to store or restore from the internal Flash memory, as many as 9 different pipe parameter configurations.
Page 42: Troubleshooting
§5.2 Error Code and Counter-Measures The LRF-2000H ultrasonic flow meter will show Error Code in the lower right corner with a single letter like I, R etc. on menu windows M00, M01, M02, M03, M90 and M08. When any abnormal Error Code shows, counter-measures should be taken.
Page 43: Other Problems And Solutions
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com not properly connected Hardware Error Hardware problem Contact the factory (1)Poor signal detected (2)Transducers installed (1)Relocate measuring improperly place (3)Too much fouling PoorSig Detected (2)Clean the spot (4)The pipe liners are too (3)Check the cords thick.
Page 44 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Problem with transducer installation. There is a ‘Zero Point’. Try to ‘zero’ the instrument by using M42 and make sure that the flow inside the pipe should be standstill.
Page 45 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com The battery can not work as long as the time period as indicated by M07 Battery should be replaced due to the end of the service life. Newly changed battery does not fit the battery estimating software.
Page 46: Communication Protocol
6. Communication Protocol §6. 1 General The LRF-2000H ultrasonic flow meter integrates a standard RS-232 communication interface and a complete set of communication protocols that are compatible with that of the Fuji’s ultrasonic flow meter. §6.2 Interface Pin-out Definition...
Page 47: Protocol Prefix Usage
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com LCD(CR) Return the current window display FOdddd(CR) Force the FO output with a frequency in dddd Hz ESN(CR) Return the ESN for the instrument Dddddddd(CR)(LF) RING(CR) Handshaking Request by a MODEM...
Page 48: Codes For The Keypad
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com adding up the string 2BH, 31H, 32H, 33H, 34H, 35H, 36H, 37H, 45H, 2BH, 30H, 6DH, 33H, 20H. Please note that there will be SPACES (20H) before ‘!’.
Page 49 LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com > Process Center AB Skogsbrynsvägen 8 C 236 31 Höllviken 040 452900 info@processcenter.se...
Page 50: Service
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se 7. Service §7.1 Service The manufacturer provides instrument installation for our customers, and the charges will be made according the cost. For any hardware failure of the instrument, we recommend that our customers send back the instrument to our factory for service, due to the fact that the instrument is made of microprocessors and it will be difficult to perform field maintenance.
Page 51: Appendix
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com Appendix 1. Sound speed data of liquid (unit: m/s) Liquids Sound speed Liquids Sound speed 1482 Glycerin 1923 Water (20 ) 1543 Petrol 1250 Water (50 ) 1554...
Page 52: Sound Speed In Water At Atmosphere Pressure
LRF-2000H Ultraljud med Clamp On sensorer www.processcenter.se Your flow measurement expert www.ultrasonicscn.com 3. Sound speed in water at atmosphere pressure Unit: t (Deg C) v (m/s) 1402.3 1496.6 1542.5 1555.1 1407.3 1499.2 1543.5 1555.0 1412.2 1501.8 1544.6 1554.9 1416.9 1504.3 1545.5...