User`s Manual US300FM Ultrasonic Flowmeter
Contents
1. Do not disassemble or remodel Addition to the section 3 5 1 Location page 13 Attention The instrument must not be installed in a corrosive atmosphere Attention Use Submersible IP68 type transducers when they are installed where condensation occurs A Tokuchu request is necessary for Submersible type However the diameter must be over 100 mm Changes to the section 3 5 5 Connection to the Power Supply page 20 1 Terminal Block page 19 The outer shapes of the terminal block for power supply connection the printed terminal names and the design on the board below the terminal block have been changed as the drawing in the right The terminal names are the same both for AC and DC power supply 2 Terminal Assignment page 21 Regarding the terminal assignment the This can be used as the earth terminal instead of terminal names were revised as below the terminal PE from the original manual The needed power supply is given in the nameplate on the housing not in the plate below the terminal block AC power supply DC power supply Terminal Connection Terminal Connection Earth Earth Neutral DC Phase 100 230 VAC 10 DC 24V DC 10 Manual Change for IM 01G05B03 01E 1st Edition No 15 010 E July 30 2015 00 Addition to the section 3 5 5 Connection to the Power Supply page 20 Install an external switch or circuit breaker as a means to turn the power off c2. 22 to 266 F USPA092 Acoustic couplant high temperature type non adhesive 100 g 30 to 200 C 0 22 Ib 22 to 392 F USPA097 Acoustic couplant weatherproof type adhesive 10 100 g 40 to 180 C 0 22 Ib 40 to 356 F 10 The operating condition of ambient temperature is as below Before and during curing 0 to 50 C 32 to 122 F After curing 40 to 180 C 40 to 356 F Standard Specifications E Dimensional Drawing Ultrasonic flowmeter US300FM Unit mm inch cio Lia Screw holes 269 10 4 g for wall mounting o i i aas F 163 6 4 i t fn i gt ipe mounting fixture for 2 inch pipe Optional 20 0 8 PJ 2 in T D 71 2 8 Weight 2 8 kg 6 17 Ib Transducers US300FT L BU 57 2 2 E e Transducer cables Jumetion borx 2 048 Screw holes for wall mounting Sensor element Transducers US300FT O0OCO US300FT ODO 57 2 2 80 3 2 X Y 52 2 0 15 0 6 14 B 04 8 tj o g i D ea m Whe ee ey mn a Transducer cables ie Pe E m Junction box B lS Screw holes for Sensor element wall mounting X m inch Y m inch X Y m inch Weight kg Ib US300FT oBa 2 0 78 7 1 0 39 4 3 0 118 1 0 9 1 98 US300FT cCa 2 0 78 7 2 4 94 5 4 4 173 2 1 5 3 31 US300FT cDo 5 0 196 9 7 0 275 6 12 0 472 4 2 5 5 51 6 IM
3. Before and during curing 0 to 50 C 32 to 122 F After curing 40 to 180 C 40 to 356 F Accessories for ultrasonic flowmeter US300FM Model Description Pipe mounting fixture to add the option PMT USPA221 Blind plug for cable gland port _USPA231_ Cable gland Accessories others Q Included in data transfer software US300SA as standard Accessories for transducers US300FT USPA001 Fixing strap 10 m 32 ft length USPA002 Fixing strap 20 m 65 ft length USPA011 Fixing clips medium type for pipe size 40 to 100 mm 1 5 to 4 in set of two clips USPA012 Fixing clips large type for pipe size 100 to 6500 mm 4 to 255 in set of two clips USPA021 Fixing bands only for pipe size 25 to 50 mm 1 to 2 in USPA032 Fixing chains set of two extensible chains 2 m 6 5 ft length equal to 600 mm 23 in diameter USPA033 Repair set for fixing chains USPA034 Retaining clips set of two clips used with fixing chains USPA036 Fixing chains set of two extensible chains 0 5 m 1 6 ft length equal to 150 mm 5 9 in diameter USPA037 Fixing chains set of two extensible chains 1 m 3 2 ft length equal to 300 mm 11 8 in diameter USPA053 Mounting fixture short ruler type for transducers medium pipe size type temperature range 30 to 200 C 22 to 392 F set of two blocks with 120 mm 4 7 in ruler USPA054 Mounting fixture standard type for transdu
4. Fluid List Customization Function The lists of material fluid in the parameter menu are editable Unnecessary items can be cut off from the menu for user s convenience Registration of new material fluid data is also possible totally up to 13 items with user defined names Power Supply Power supply voltage 100 to 230 VAC 10 50 60 Hz 5 or 24 VDC 10 Power consumption Less than 15 W Safety and EMC Standard General safety EN61010 1 2010 EN61010 2 030 2010 e Altitude at installation site Max 2000 m above sea level e Overvoltage category Overvoltage category II e Pollution degree Pollution degree 2 EMC regulation EN61326 1 2006 Operating Conditions Ambient temperature 10 to 60 C 14 to 140 F Ambient humidity 0 to 95 RH or less Non condensation Note Lengthy operation at 80 or more is not recommended Transducers Basic Construction A set of transducers are composed of a pair of sensor elements often called just as transducers and transducer cables with a junction box at one end which is to be connected to US300FM main unit by dedicated connection cable US300FC The transducer cables are armed with stainless steel flexible tube Note Fixing hardware fixing strap clips etc and acoustic couplant are usually included in a set of transduces specified in its model code by their kinds or with without Material Case of sensor elements Stainless steel EN DIN 1 4571 JIS
5. Addition to the section 4 4 1 Interruption of Power Supply page 27 Attention The current outputs may temporarily turn unstable during the power on sequence after power failure Take care of your process not to be affected by this behavior Addition to the chapter 5 Basic Measurement page 29 When changing any settings in PARAMETER program branch be sure to also go through MEASURING program branch to the end where the measurement will start In this case you do not always have to fix the transducers on to the pipe and thus you do not always need to get the actual flow measurement If you shut off the power supply without taking this procedure the settings to be changed would not be effective and keep the same settings as before Addition to the section 5 4 Selection of the Sound Path Factor page 34 When the pipe outer diameter is more than 600mm the sound path factor as 1 one is recommended Otherwise the measurement may become unstable when flow velocity or fluid temperature changed Addition to the section 5 5 2 Mounting of the Transducers page 35 The pipe wall thickness may slightly vary from part to part Check it in advance by applying a wall thickness probe or some other ways and avoid mounting the transducers on such parts Attention Instructions for using Acoustic couplant weatherproof type Shin Etsu Silicone 1 COMPONENT RTV are as below The operating c
6. 01G05B03 01E 1st Edition Standard Specifications Connection Cable US300FC Main unit side Junction box side 60 5 52 5 2 4 0 2 240 2 US300FC GOO0 The length is from 1 to 300m i2 0 5 Weight approx 167 g m 0 37 Ib m E Wirings Terminal Layout One channel path model Dual channel path model Terminal Designations Name pi Surentoutputes OOO OO Current output when specifying two ARS channel A current outputs Downstream transducer signal for Fenin ounie Vontional BVS channel B P3 peream iransCUGET signator Binary pulse or alarm output optional BRS channel B P5b SA1 Poa Same as above SA2 P6b SA3 Sensor ROM for channel A PE Earth SA4 N Neutral SB1 L AC power supply 100 to 230 V AC 10 SB2 PE SB3 Sensor ROM for channel B N SB4 L DC 24 V DC 10 1 Either of these according to specified power supply specification IM 01G05B03 01E 1st Edition T
7. 500 mm 1 to 255 inches covered by three types of transducers Pipe and Lining Materials Carbon steel Stainless steel Grey cast iron Ductile iron Copper Glass PVC etc Flow Velocity Range 0 01 to 25 m s 0 033 to 82 ft s Resolution 0 025 cm s 0 01 in s Repeatability 0 15 of reading 0 01 m s 0 033 ft s Accuracy Note Under fully developed rotationally symmetrical flow profile Volumetric flow 1 to 3 of reading 0 01 m s 0 033 ft s depending on pipe geometry and accuracy of entered pipe dimensions Flow velocity 0 5 of reading 0 01 m s 0 033 ft s over sonic path Measuring Cycle 100 to 1000 Hz per one channel Straight Pipe Run in the Upstream 10 to 50 pipe diameters depending on the kind of flow disturbances Ultrasonic Flowmeter Main Unit Housing Material Aluminum Painting Front cover Deep sea moss green Polyuretane and acrylic resin corrosion resistance waterbased coating Back cover Agate grey Polyester resin corrosion resistance powder coating Degrees of Protection e IP65 EN60529 Mounting Method e Wall mounting e Pipe mounting fixture for 2 inch pipe optional IM 01G05B03 01E 1st Edition Measuring Input One or two dual Channel A Channel B Current Output e One or two e Range 4 to 20 mA Load resistance 0 to 500 Q Note The current outputs may temporarily turn unstable during the power on sequence including restarting after power
8. failure and parameter display setting mode Take care of your process not to be affected by this behavior Frequency Output e None standard or one optional e Range 0 to 1 kHz e Contact type Open collector 24 V 4 mA Binary Output e None standard one or two optional e Contact type Open collector 24 V 4 mA Input Output Terminal Configuration Screw type pillar terminals LCD Display 2 line x 16 character LCD display with backlight Configurable to display two measured values e g flow rate and total flow simultaneously or to display values from optional dual input channels alternately Keyboard 15 keys numerical functional or both including four arrow shaped keys for cursor operation enabling easy access through its interactive menu structure Display Language Czech Danish Dutch English default French German Norwegian Polish Turkey Flow Measurement Flow velocity Volume flow Mass flow Sound Velocity Signal Amplitude Measurement On line Sound velocity and signal amplitude in the fluid available on line simultaneously with flow measurement Totalization Function Totalizes the volume flow or mass flow Ten digit number for both forward reverse directions of each channel Damping Function Time constant 0 to 100 seconds moving average Sound Velocity Measurement Off line Measures the sound velocity of unknown fluid starting from its estimated sound velocity The r
9. sets of connection cables are necessary when applying dual channel path measurement Data transfer software Model Suffixcode _ _ Specification _ oe eine transfer software Windows version Including connecting kit RS232 cable for connection RS232 adapter 9 25 Language 1 eee English German version T dO ses Always 00 Transducers 3 Model _ Suffix code Specification US300FT ee Transducers for fixed type Usage 4 G vette General aa IP65 Pipe Size Medium amp panes with 3 m Fluid 9 8 ft cable Temperature Medium amp High with 3 m 9 8 ft 5 cable Large amp General with 4 4 m 14 4 ft cable Large amp High with 4 4 m 14 4 ft cable Very large amp General with 12 m 39 4 ft cable Always N For 25 to 1 400 mm 1 to 55 in Two fixing bands One strap of 10 m 32 ft length Two clips of medium type Two clips of large type Fixing band strap and clips 6 For 1 400 to 2 800 mm 55 to 110 in One strap of 20 m 65 ft length Two clips of large type For 2 800 to 6 500 mm 110 to 255 in Two straps of 20 m 65 ft length Two clips of large type Acoustic couplant General temperature type non 7 adhesive 30 to 130 C 22 to 266 F High temperature type non adhesive 30 to 200 C 22 to 392 F Weatherproof type adhesive 40 to 180 C 40 to 356 F None Transducer tag plate maximum 16 characte
10. SUS 316Ti AISI 316Ti SS equivalent Sensing surface of sensor elements General temperature type PEEK Poly Ether Ether Keton High temperature type Polyimid Degrees of Protection General type IP65 EN60529 Immersible type IP67 EN60529 Applicable Pipe Sizes inner diameter Medium type 25 to 400 mm 1 to 16 inches Lager type 100 to 2 500 mm 4 to 98 inches Very large type 2 000 to 6 500 mm 78 to 255 inches Note Only 6 500 mm above is the size for outer diameter IM 01G05B03 01E 1st Edition Standard Specifications Fluid Temperature Range General temperature type 30 to 130 C 22 to 266 F High temperature type 30 to 200 C 22 to 392 F Note Pay attention also to temperature specification of the couplant you choose Connection Cable Connection cable is always necessary to connect the transducers junction box and the US300FM main unit The length is specifiable from 1 m 3 ft to 300 m 984 ft by the meter Accessories Fixing Hardware Couplant etc Specified in the suffix code of US300FM US300FT Model codes as accessories also available for separate additional orders listed later Data Transfer Software General The software installed on a personal computer receives one or more records of logging data and parameter sets stored in US300FM main unit via RS232 communication port Data can be viewed or graphed on a PC monitor or exported as a text file
11. This software works while US300FM is off line not measuring flow where current output goes down to zero Function Displaying Parameter Record Display parameter record of selected measuring data set Displaying Measured Data in Table Display measured data of selected measuring data set in table format E Units of Measurement Volume flow Flow velocity Mass flow Totalizers __ Sound velocity a m3 h m s m3 min inch s m3 s I h I min I s USgph USgpm USgps bbl d bbl h bbl m 1 gallon US 3 78 1 barrel IM 01G05B03 01E 1st Edition Displaying Data in Graph Display measured data of selected measuring data set in graphic format Marker type and color for each line of values selectable Scales for time axis and value axis can be changed from default condition of automatic scaling Graph printing function embedded Displaying Statistical Data Display statistical data of the measurement Total data points minimum maximum average and standard deviation of the measured data can be shown Data range for statistical processing can be designated if necessary Exporting Text File Parameter record and measured data can be exported to a text file Options for exporting items or their formats are available Entering Remarks User s remarks for each measured data can be entered and edited in the transferred data file on a personal computer Remarks can be displayed in the main window of the software D
12. apacitance 15A conforming to IEC947 1 and IEC947 3 Locate this switch either near the instrument or in other places facilitating easy operation Affix a Power Off Equipment label to this external switch or circuit breaker Changes to the section 3 6 Sensor ROM page 22 The sensor ROMs are packed and affixed to the transducers when shipped from the factory not inserted to the terminals in the main unit They shall be connected to the corresponding terminals in the main unit when installation Addition to the section 3 7 Replacement of the Fuse page 22 M Be sure to use the fuse which satisfies the specification below Components may otherwise be damaged Changes to the section 3 7 Replacement of the Fuse page 22 Change the fuse specification 250V 1 25A delayed action Type T to as below 250V 1A delay type for AC power supply 250V 1 6A delay type for DC power supply Addition to the chapter 4 Getting Started page 23 Attention The current outputs may temporarily turn unstable during the power on sequence including re starting after power failure and parameter display setting mode Take care of your process not to be affected by this behavior Addition and deletion to the section 4 1 1 Key Operations page 23 and related pages Refer to the following table for the function of corresponding key operations The correct explanations for these key operations
13. cers medium pipe size type temperature range 30 to 200 C 22 to 392 F set of two blocks with 330 mm 13 in ruler USPA055 Mounting fixture magnetic general temperature type for transducers medium pipe size type temperature range 30 to 100 C 22 to 212 F set of two blocks with 330 mm 13 in ruler USPA057 Mounting fixture standard type for transducers large or very large pipe size type temperature range 30 to 200 C 22 to 392 F set of two blocks with 330 mm 13 in ruler IM 01G05B03 01E 1st Edition USPA058 Mounting fixture magnetic general temperature type for transducers large or very large pipe size type temperature range 30 to 100 C 22 to 212 F set of two blocks with 330 mm 13 in ruler USPA073 Additional magnets for mounting fixture magnetic general temperature type for transducers medium pipe size type temperature range 30 to 100 C 22 to 212 F set of two magnets USPA075 Additional magnets for mounting fixture magnetic general temperature type for transducers large or very large pipe size type temperature range 30 to 100 C 22 to 212 F set of two magnets USPA081 Ruler for mounting fixture marked length 120 mm equivalent to 4 7 in USPA082 Ruler for mounting fixture marked length 330 mm equivalent to 13 in USPA091 Acoustic couplant general temperature type non adhesive 100 g 30 to 130 C 0 22 Ib
14. cl US300FM anua ange Ultrasonic Flowmeter a eee This is the supplement for the original manual No IM 01G05B03 01E 1st Edition regarding the added and changed items Please also refer to this supplement when you read the manual Addition to the section 3 5 4 Connection of the Transducers page 18 1 Cable Finish a Main unit side b Junction box side The cable finish should be done as the drawings a and b Unit mm l Perform Perform shown InN the right N soldering soldering N eld I x Seng Shield line 2 Cable Gland i ie a When tightening the gland not only pull back the cable shield B iee J ieee meshed part but also roll it out into a ring shaped form and let sae than B He it be pushed by the compression part grey colored plastic so a Thin lines einen Thin lines that the cable shield will have electrical contact with the gland meshed meshed body Also be sure to align the convexity part outside the compression part and the concavity part inside the gland body x Finish the brown cables as well as white cables You do not connect the thin lines to any terminals Refer to the drawings below y Pamm m m m m Outer skin of the cable Cable shield ringed shape Cable shield rolled out into a ring shaped form Signal lines Rubber ring Compression part Gland body Compression ed Outer wall of convexity part outside concavity part insid
15. e part LA the main unit or junction box Components of the cable gland Cutaway view of the cable gland 3 Grounding The connection of the cable shield will be realized as shown in the drawing below after going through the procedures 1 and 2 in the above Connect the main unit to the ground through the terminal PE of the power supply terminals in the main unit The grounding resistance should be less than 100 ohm E Transducers E Sensors Junction box Connection cable oN GND Connection of the cable shield Grounding resistance less than 100 ohm 4 Connecting the Sensor ROMs Connect the sensor ROMs to the corresponding terminals in the main unit when connecting transducers The sensor ROMs are packed and affixed to the transducers when shipped from the factory YOKOG AWA Manual Change for IM 01G05B03 01E 1st Edition No 15 010 E July 30 2015 00 Yokogawa Electric Corporation Changes to the section 3 1 Scope of Delivery page 11 Change the figure of a nameplate to as below ULTRASONIC FLOWMETER Me a US300FM ur a suPPLY TAG NO M YOKOGAWA S Made in Germany Addition to the section 3 1 Scope of Delivery page 11 When ordering a couplant weatherproof type by couplant code R in the transducer specification or model code USPA097 a package of Shin Etsu Silicone 1 COMPONENT RTV KE45T is delivered Addition to the section 3 3 General Precautions page 12
16. esult can be transferred to the current fluid parameter Standard Specifications Arithmetic Operation on Optional Dual Channel Dual Path Inputs Arithmetic operations get the outcomes for calculation channel Y and Z by taking sum average or difference of two flow values from input channel A and B Taking absolute values of each input independently in the calculation is also possible Note Two sets of transducers are necessary Pulse Output optional Available via optional binary outputs e Pulse value 0 01 to 1000 of totalization unit e Pulse width 100 to 1000 ms 420 e Maximum output rate 2pps pulse second 20 Alarm Output optional Available via optional binary outputs where each alarm item is assigned one to one Alarm properties are also selectable for each alarm one by one e Alarm items High limit Low limit Flow direction change Quantity limit for batch operation and Error measurement impossible e Alarm properties Normal open Normal close Non hold Hold at the alarm detection Output Signal Configuration Freely configurable including independent dual flow value outputs e Current frequency outputs Flow velocity Volume flow Mass flow Sound velocity or Signal amplitude e Binary outputs Pulse or Alarm Data Logging Function Data storage capacity of 27 000 values Storage rate is selectable from 1s 10 s 1 min 10 min 30 min 1h or any other rate between 1 s to 43200 s 12
17. h by the second For each period of measurement stored values are grouped by a user defined measuring point name Stored values can be transferred to a personal computer via RS232 serial communication port Note As the RS232 port is on the front panel inside housing use this function only for test service maintenance purposes Communication Function Transfers the measured values to a personal computer or a serial printer Both on line off line transfer during after the measurement available e Output item Flow value flow velocity volume flow or mass flow Totalization forward reverse Sound velocity Signal amplitude e Output format setting Spacing for printer Decimal point character Data delimiter e Communication interface RS232 e Communication port D sub 9 pin male Note As the RS232 port is on the front panel inside housing use this function only for test service maintenance purposes Time Programmable Measurement Function Automatic start stop of the measurement without human operation using internal clock for specific systems Can be used with current output binary output data logging function and or communication function for recording the measurement Site Parameters Storage Function Eliminates the necessity of re entering parameters for additional measurement on a site Totally 80 sets of site parameters for pipe fluid settings are available with user defined site names Material
18. in the related pages are also as the table below Related pages 4 1 1 Interruption of Power Supply page 27 15 2 US300FM doesn t react anymore page 106 BRK nr C ENTER Operation during the measurement or menu display RESET __ RESET Press these three keys simultaneously to recover from an error This has the same effect as restarting the unit Data will not be affected INIT cold start Press these three keys simultaneously and release ENTER first After acknowledging the display of main menu release i BRK key first and then ii C key This will initialize the instrument Most parameters and settings are reset to the factory default values The memory will not be cleared Note that when the data logging function is activated the DELETE MEAS VAL display will appear instead of main menu In this case after releasing i BRK key first and then ii C key select No or YES and then press ENTER to finish the procedure Operation when powering the instrument on INIT coldstart Pressing these two keys simultaneously and after acknowledging the display of main menu release i BRK first and then ii C This will initialize the instrument Most parameters and settings are reset to the factory default values The same procedure is required as above when the DELETE MEAS VAL display appears BRK INIT C se uh A ee Manual Change for IM 01G05B03 01E 1st Edition No 15 010 E July 30 2015 00
19. isplay Language English German Note Help is available only in English Operating Environment Personal Computer Microsoft Windows hardware compatible one or more RS232 port Operating System Microsoft Windows 98 ME NT 2000 XP Standard Accessories RS232 cable RS232 adapter 9 25 Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and or other countries 42 gallons 158 76 Standard Specifications E Model and Suffix Code Ultrasonic flowmeter Model _ _Suffixcode __ Specification Cecil tanec Two current outputs Aeee 100 t0 230 VAC 410 nnn 24VDCHO One input channel one path Two input channels dual path Electrical connection Jad eee ISO M20 x 1 5 female Option PU1 One binary pulse or alarm output open collector 1 PU2 Two binary pulse or alarm outputs open collector 1 IFQ1 Frequency output open collector 0 to 1 KHz 2 Tag number on nameplate in the nameplate label maximum 16 characters Tag number on stainless steel tag plate maximum 16 characters IPMT Pipe mounting fixture 4 Option PU1 and PU2 are exclusive 2 Option FQ1 is not selectable for two current output A2 models Power Supply Input Channel Connection cable 8 Model Suffix code Specification US300FC Connection cable Length Gxxx xxx Cable length 001 to 300 m 8 Two
20. n changed as below requiring pressing the keys three times To reset the two flow totalizers to zero Aon Press key 8 three times when a totalizer is displayed To deactivate flow totalizing 2 Press key S three times when a totalizer is displayed Addition to the section 14 5 Activation of a Pulse Output page 95 Maximum pulse output rate is 2 pulse per second 20 Set the Pulse Value and the Pulse Width so that the actual maximum flow in the pipe is less than half the displayed value Max Value Example The actual maximum flow 120m h Pulse Value 0 02m Pulse Width 150ms INFO Max Value 240 0m h Attention ANN It is necessary to activate flow totalizers by pressing key amp to get the actual pulse output Refer to the section 7 2 page 43 for flow totalizers Changes to the chapter A Standard Specification page 109 to 116 Please use the following sheets for this chapter Manual Change for IM 01G05B03 01E 1st Edition No 15 010 E July 30 2015 00 Standard Specifications A Standard Specifications US300FM General Fluid Liquid Turbidity lt 10 000 mg L Sound velocity 800 to 3 500 m s Temperature 30 to 200 C 22 to 392 F Measured Quantities Volume flow mass flow by setting density flow velocity sound velocity in the fluid Measuring Principal Transit time method using ultrasonic signal Pipe Sizes 25 to 6
21. ondition of ambient temperature Before and during curing 0 to 50 C 32 to 122 F After curing 40 to 180 C 40 to 356 F When applying this couplant cut the tip of attached nozzle to appropriate length and set it to the tube container Also remove matters like dust or oil on the surface to be applied Otherwise its adhesion force may become lower When curing this couplant keep the ambient and installation position temperature between 0 to 50 C 32 to 122 F If not the flow measurement may fail because of air bubbles formed inside the rubber before curing etc It usually takes one to three days for complete curing depending on the conditions Addition to the section 5 5 2 2 Mounting with Fixtures and Chains page 36 Attention When using mounting fixtures there may arise some air gap between the transducer surface and pipe wall because of any distortion of the pipe wall Make sure to avoid having such air gap between them Addition to the section 6 1 Selection of the Physical Quantity and of the Unit of Measurement page 39 Attention In case of mass flow select Other Medium as a measured fluid When Other Medium has been selected US300FM requests to enter the density which is used to calculate mass flow Manual Change for IM 01G05B03 01E 1st Edition No 15 010 E July 30 2015 00 Changes to the section 7 2 Flow Totalizers page 48 Two of the key operations have bee
22. rs 3 Two sets of transducers are necessary when applying dual channel path measurement 4 A Tokuchu request is necessary when transducers are installed where condensation occurs However the pipe size must be over 100 mm Large type or Very large type 5 The alphabetic characters in the suffix code represent pipe sizes and fluid temperature ranges are below B Medium type 25 to 400 mm 1 to 16 in C Large type 100 to 2 500 mm 4 to 98 in D Very large type 2 000 to 6 500 mm 78 to 255 in G General temperature 30 to 130 C 22 to 266 F H High temperature 30 to 200 C 22 to 392 F 6 When the pipe size is less than 50 mm 2 in select N None here first and order separately one each of USPA053 mounting fixture short ruler type USPA036 fixing chains 0 5 m 1 6 ft length and USPA097 couplant weatherproof type It will avoid any stress that could be caused by expansion of the pipe after installation The couplant weatherproof type can be specified by the code R for couplant IM 01G05B03 01E 1st Edition Standard Specifications 7 The couplant weatherproof type is recommended for permanent installation in the outdoor etc It is adhesive liquefied rubber and tight contacts between transducers and pipe surface can be obtained by curing it It usually takes one to three days for complete curing depending on the conditions The operating condition of ambient temperature is as below
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