Toshiba LF516 Скачать руководство пользователя страница 19

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6 F 8 A 0 9 3 4

(2) Preventing an Empty Pipe Condition

Fix the relevant pipes installed on both sides of the detector by attach fittings, etc. to support the pipe.

By supporting the pipes, not only the pipe vibration is reduced but also the damage to the pipes by the
electromagnetic flowmeter's weight and the fluid mass (see Figures 4.2 and 4.3).

Figure 4.2 Example of Pipe Fixing Procedure

Figure 4.3 Model Diagram of Unsupported Pipes

Pipe support fittings

Содержание LF516

Страница 1: ...fully and understand the contents and then use the equipment correctly NEVER attempt to operate the equipment in any ways that are not described in this instruction manual After reading this manual store it with care in a place where it can be referred to whenever needed Please be sure that this manual is delivered to the personnel who will use this product ...

Страница 2: ...ance of the combined detector check the model number of the combined detector and read the instruction manual of the relevant detector About Safety Precautions Read the Safety Precautions described at the front carefully and understand the contents before using this product The Safely symbols used in the Safety Precautions are shown in a location such as in the margin to the left of the correspond...

Страница 3: ...ns high temperature or low temperature electric shock bone fracture and poisoning and the after effect of the injury remains or the injury requires hospitalization or long periods of outpatient treatment 2 Minor to moderate injuries refers to burns electric shocks and so on that do not require the injured person to be hospitalized or go to a hospital for a long period of time for medical treatment...

Страница 4: ...s of enclosure can cause explosion Do not use parts of other products DON T Protective performance degradation for hazardous location can cause explosion Do not touch circuits until assembly of all components is over DON T Protective performance degradation for hazardous location can cause explosion Install per the National Electrical Code for the US NEC ANSI NFPA 70 and the Canadian Electrical co...

Страница 5: ...isassembling this product can cause electric shock malfunction of or damage to this product Turn off mains power before conducting wiring work Ground LF516 LF546 independently from power equipment 100 ohm or less ground resistance DO Wiring while power is applied can cause electric shock DO Operating this product without grounding can cause electric shock or malfunction Turn off mains power before...

Страница 6: ...tion Use a rated fuse as follows Fuse rating 0 8A 250V for 100 to 240Vac Dimensions Diameter 5 2 mm 20 mm Melting time characteristic Time Lag Fuses for 100 to 240Vac Usage limitation This product is not manufactured for applying to a system requiring safety directly involved human life as follows Please contact your nearest Toshiba reprehensive if there is a possibility of using this product for ...

Страница 7: ... proper operation of infrared switch such as to place a cover or to secure a space for at least a person to stand in front of the control panel When unable to avoid above factors operate the EMF converter removing the factor by covering the control panel by hand so that light does not shine on it by cleaning those attached on the control panel or by standing in between the reflecting object and th...

Страница 8: ...used near the installation site Observe the following precautions when using them Close a transmitter cover before using a transceiver Do not use a transceiver whose output power is more than 5 W Move the antenna of a transceiver or a cellular phone at least 50 cm away from the flowmeter and signal cables when using it Do not use a radio transmitter or a cellular phone near the flowmeter while it ...

Страница 9: ...iping Connections 21 4 4 Grounding 24 5 Wiring 25 5 1 Cables 27 5 2 External Device Connections and Grounding 28 5 3 Notes on Wiring 29 5 4 Wiring 30 5 4 1 Terminal Treatment of Cables 30 5 4 2 Cable Connection 31 5 5 Digital I O Connections 32 6 Operation 33 6 1 Preparatory check 33 6 2 Zero Adjustment 34 7 LCD Display and Controls 35 7 1 Name and Function of Each Part of LCD Display 35 7 2 Displ...

Страница 10: ...e High Low Alarm and High High Low Low Alarm 90 8 2 24 Mag Prover Self Diagnosis ON OFF Setting 92 8 2 25 Fixed Value Output 93 8 2 26 Password Setting 96 8 2 27 LCD Adjustment 98 8 2 28 Switch Position Setting 99 8 2 29 Communication Setting 100 8 3 Parameter initial settings list 101 9 Mag Prover Calibration 103 9 1 Calibration Items 103 9 2 Converter Using Mag Prover s Built In Signal Source 10...

Страница 11: ...us for Errors and Alarms 137 13 Maintenance and Troubleshooting 138 13 1 Maintenance 139 13 2 Troubleshooting 140 13 2 1 Flow rate is not indicated 140 13 2 2 Flow rate indication is not correct 141 13 2 3 Flow rate indication is not stable 142 13 2 4 When switch operation is unable 143 14 Principle of Operation 144 15 Specifications 145 15 1 Specifications 145 15 2 Model Number Table 149 16 Outli...

Страница 12: ...magnetic flowmeter after opening the package select a storing place as follows and keep it under the conditions described below CAUTION 1 Avoid places where there is direct sunlight rain or wind 2 Store the product in a well ventilated place Avoid places of extremely high humidity or extremely high or low temperature The following environment is recommended Humidity range 10 to 90 RH no condensati...

Страница 13: ...used to measure fluid even if it contains high concentration of slurry Ceramics is used for the detector pipe as standard The unique Noise Sentry filter circuit and its advanced Arithmetic Logic Unit ALU enables you to obtain a stable output 4 Full graphic electronically rotatable LCD that enables display of a large amount of information 1 With a large amount of a maximum of 9 characters x 7 lines...

Страница 14: ...tions are not provided in the conduit port of this apparatus Please prepare yourself for the cable connections which could be used in Division2 hazardous locations Terminal block cover Converter Ground terminal Arrow nameplate Detector For power cable For current output cable Display section Control key Control panel Raised portion ...

Страница 15: ...r terminal block as shown below CAUTION The label shown left is placed near the terminal board for power supply to this equipment Be alert to electric shock Figure 3 2 Terminal Block Construction of LF546 Power supply terminal Internal grounding terminal External grounding terminal Current output terminal or PROFIBUS terminal Option Fuse Digital output terminal Digital input terminal Signal common...

Страница 16: ...uitable conduit connections for hazardous location can cause explosion CAUTION Turn off mains power before working on pipes Use an appropriate device to carry and install the LF516 LF546 DO Working on pipes while power is applied can cause electric shock DO If his product falls to the ground injury or malfunction of or damage to the product can be caused Do not modify or disassemble the unnecessar...

Страница 17: ...d be conducted on the downstream side of the flowmeter 13 Places where there is following factors Factors to impede infrared switch to operate properly Intense light such as direct sunlight and reflected sunlight by window glass or metal plate Place where brightness changes suddenly such as lighting being turned ON OFF Dense smoke or steam near the control panel Those attached on the control panel...

Страница 18: ... 7 Design piping so that the detector pipe is always filled with fluid whether the fluid is flowingor not 8 The detector has no adjustable piping mechanism Install an adjustable short pipe where needed 9 Chemical injections should be conducted on the downstream side of the flowmeter 4 2 1 Pipe checks 1 Before installing pipes check for any leaning or misplacement or eccentricity as illustrated in ...

Страница 19: ... etc to support the pipe By supporting the pipes not only the pipe vibration is reduced but also the damage to the pipes by the electromagnetic flowmeter s weight and the fluid mass see Figures 4 2 and 4 3 Figure 4 2 Example of Pipe Fixing Procedure Figure 4 3 Model Diagram of Unsupported Pipes Pipe support fittings Pipe support fittings ...

Страница 20: ...depending on the flange pattern used 5 Thread nuts on both ends of the 4 or more mounting bolts finger tight See Table 4 1 Bolt length and tightening torque 6 While centering the flowmeter with the longitudinal axis of the pipeline tighten the nuts with a wrench diagonally across in even increments See Table 4 1 Bolt length and tightening torque Note that the flowmeter detector pipe axis must be a...

Страница 21: ... to 120 50mm 2 4 5 8 215 52 to 65 8 5 8 220 52 to 65 80mm 3 4 5 8 225 71 to 88 8 3 4 240 85 to 106 100mm 4 8 5 8 235 52 to 65 8 3 4 255 125 to 156 DIN BS 10 DIN BS 16 JIS 10K Through Bolts Through Bolts Meter size P C S Dia meter Length mm Tightening torque N m P C S Dia meter Length mm Tightening torque N m 15mm 4 M12 150 16 to 19 4 M12 150 10 to 13 25mm 4 M12 165 27 to 34 4 M16 170 22 to 28 40mm...

Страница 22: ...gth straight pipe length plus half length of the detector D Nominal bore size diameter NOTES The length of a reducer if connected can be counted as a part of the straight pipe length No straight pipe length is needed on the downstream side If a butterfly valve is installed downstream of the detector do not let the valve plate protrude into the pipe of the detector L 5D L 10D 1 90 bent 2 Tee 3 Diff...

Страница 23: ...to upper directions See Figure 4 5 Figure 4 5 Detector Piping Orientation The electrodes should be positioned horizontally against the ground surface in any piping installation See Figure 4 6 Figure 4 6 Installation position of the detector Flow direction a Horizontal pipe installation b Vertical pipe installation c Sloping pipe installation Detector Ground surface a c b Ground surface Detector Do...

Страница 24: ...e output No pulses For bidirectional range measurement the flow in opposite direction results in a positive output value See 10 3 Multi range Functions Figure 4 7 Flow direction arrow on the detector 4 Preventing an Empty Pipe Condition Design an upright pipe run Figure 4 8 or sufficient head pressure Fig 4 9 at the downstream detector outlet if there is a possibility of the detector pipe becoming...

Страница 25: ...V wire 5 5mm2 or more Do not share a grounding wire with other instruments where grounding current may flow An independent grounding is preferable Figure 4 10 Grounding the LF516 LF546 Type Grounding terminal grounding resistance 100Ωormore If the piping material is conductive connect the grounding wires to the both ends of the piping flange If the piping material is non conductive perform groundi...

Страница 26: ... explosion Do not activate circuits while assembly of all components is not over DON T Protective performance degradation for hazardous location can cause explosion Install per the National Electrical Code for the US NEC ANSI NFPA 70 and the Canadian Electrical code for Canada CEC CAN CSA C22 1 and the drawing 3S8A2699 Refer to Appendix 2 DO Unsuitable conduit connections for hazardous location ca...

Страница 27: ...t conduct wiring work with bare hands For the power supply wiring and grounding wiring use crimping terminals with insulated sleeve DON T Remaining electric charge even if power is turned off can still cause electric shock DO There is a risk of electric shock due to drop off or loosing and a risk of fire and equipment trouble due to heat generation Do not modify or disassemble the LF516 LF546 unne...

Страница 28: ... inside Therefore do not conduct a withstand voltage test for the converter To check the insulation of the converter use a voltage of 250Vdc or less 4 After wiring be sure to install the terminal block protection cover 5 1 Cables Use the kind of cables shown in Table 5 1 to wire the converter Table 5 1 Installation Cables Name Cable name Nominal cross sectional area Finished outer diameter Descrip...

Страница 29: ... single throw both disconnection wiring breaker Power supply Wiring breaker double pole single throw Output signal cable CVV S Current output 4 20mAdc or PROFIBUS NOTE To avoid 2 point grounding ground the shield of the output cable basically at the receiving side Digital output 1 Common for DI DO 100 ohm or less ground resistance Digital output 2 Digital input 20 to 30 Vdc Power cable CVV For a 2...

Страница 30: ...ding wire of IV wire 5 5mm2 or more The size of the external grounding terminal screws is M4 Do not share a grounding wire with other instruments where grounding current may flow An independent grounding is preferable Power cable When a 3 core cable is used Ground with the FG terminal When a 2 core cable is used Use an external grounding terminal and make the cable as short as possible ...

Страница 31: ...install the cables to the terminal block Use appropriate cables based on the description in Section 5 1 Cables Crimp a round type insulated crimp type terminal to the end of the cables 1 Power cable current output cable and digital I O cables The necessary cables should be ordered from the person responsible for the installation Strip the sheath of each conductor as shown in Figure 5 6 and attach ...

Страница 32: ...een connected securely Referring to Section 5 2 External Device Connections and Grounding connect each cable to the terminal block Tighten the screws of the terminal block tightly to ensure the secure connection A loose connection may cause incorrect measurement After connecting a cable try to pull it to see whether it has been connected securely Figure 5 10 Connecting a Cable to Terminal Block Ph...

Страница 33: ...ounter to the contact output terminal DO1 or DO2 put a surge absorbing diode into the input circuit of the relay or counter See Figure 5 3 for an example of electromagnetic counter connection Figure 5 3 Electromagnetic Counter Connection Example Note 1 Use a surge absorbing diode of the rating current rating 1A and voltage rating 200 V minimum Note 2 When a power supply built in electronic counter...

Страница 34: ...m or less ground resistance Make sure the converter housing covers are securely tightened Let the fluid go through the detector pipe Note 1 When the detector is filled with the fluid stop the fluid and keep it still in the detector pipe Make sure the power supply is as specified Check the configuration parameter settings Refer to Chapter 7 LCD Display and Controls Chapter 8 Configuration Parameter...

Страница 35: ...mmand signal from a HART communications device a communication device such as hand held terminal AF900 is required See the instruction manual of hand held terminal you use 3 PROFIBUS communication a communication device for PROFIBUS is required See the instruction manual of communication device you use Note 1 If the detector pipe is not filled with the fluid to be measured the flow rate will be in...

Страница 36: ...and so that light does not shine on it Clean the stain attached on the control panel Clean the stain on the finger or the gloves to operate the EMF converter or wear gloves in light color When there is a reflecting object placed opposing to the control panel stand in between the reflecting object and the control panel to block the light Following are considered as the factors to impede infrared sw...

Страница 37: ...t mode or configuration parameters in the setting mode can be displayed Number of LCD display dots 128 x 128 dots Measured Value Display 1 Displays a measured value of the type the operator has selected Measured Vale Display 2 Displays a measured value or setting value of the type the operator has selected or displays an error message If an error message appears the measured value or setting value...

Страница 38: ... the display method can be changed according to the converter installation direction For example if the control keys are installed so that they are located above the display they can be displayed appropriately as shown below by changing the display method Above the control keys Left of the control keys Right of the control keys A DETECTOR 1 EXC CUR 2 SIZE 3 EXC FREQ 4 FLOW DIR 5 EXIT ESC A DETECTO...

Страница 39: ...ess is blinked Counting stopped is displayed Counting direction In the case of forward flow direction FRD is displayed In the case of reverse flow direction REV is displayed Numeric value 8 digits maximum including a decimal point are displayed Up to 99999999 Displayed to the least significant digit of the set count rate Unit 3 digits maximum are displayed Operation Counting in progress is blinked...

Страница 40: ... Example2 When the count rate is 10 m3 When the measurement object flows through 10 m3 inside counter counts 1 Because inside counter is 8 digits at the maximum the maximum of totalized flow is 99999999 m3 When inside counter exceeds the maximum inside counter return to 0 and continue totalization Inside counter m3 Max 8 digits Totalized flow display m3 Max 8 digits include decimal point 0 0000000...

Страница 41: ...oes out of the display range an error message appears Numeric value 7 digits maximum including a decimal point are displayed Up to 9999999 4 significant digits The value is obtained by multiplying m 3 min by the set coefficient Unit 7 digits maximum are displayed Flow direction In the case the flow is in reverse direction is displayed In the case the flow is in forward direction not displayed Iden...

Страница 42: ... 12mA The set value in 8 2 17 Output Low Limit Setting will be output When communications function is used When HART communication is used a mark is displayed in the upper field on the display When PROFIBUS communication is used if the communication is made between the PROFIBUS option board and the converter main board a mark is displayed in the upper field on the display in the same way as in HAR...

Страница 43: ...e to check or set various parameters Various setting values can be displayed on the screen but the output is always the flow rate of process fluid as in the measurement mode See 7 4 Setting and Calibration Items List and 8 2 Parameter Check Change for details Calibration mode Mode to check the converter circuit The built in simulation signal generator circuit can be used to check the span of the r...

Страница 44: ... FUNC PLS OUT DO1 FUNC PLS FRD SET OK OK NO ESC NO L L DISPLAY UNLOCK PUSH SW V L Measurement mode PUSH SW CNT CNT CTRL SET SET MODE CNT SET ESC EXC CUR 0 2000 A EXC CUR 0 2010 A SET OK NO OK ESC NO L Special screen Cursor at lowest digit CS UNIT AAA BBB CS UNIT XXX YYY SET OK OK NO ESC NO L L Move digit Adjustment Calibration screen ZERO ADJ L indicates that you can hold down the switch longer L ...

Страница 45: ... moves to Pulse width setting screen When pulse width setting mode is AUTO the screen moves to Totalizer control screen For details of setting procedure set See 8 2 20 Note Pulse width setting mode is set to AUTO when shipped from the factory 4 Counter control screen This screen is used to start the totalizer If is pushed the screen returns to the measurement screen End of pulse output setting mod...

Страница 46: ...o push was erroneous UNLOCK FAILURE error message appears and the screen return to the display unlock screen Mode return to the measurement mode in case of the third error When the center switch is pushed during error message indication mode return to the measurement mode immediately Note 2 V shows the version number When the mode change screen appears proceed as follows Enters the setting mode se...

Страница 47: ...the measurement mode 7 3 2 Setting and Calibration In the setting mode you can select items or check or change the setting values as described below When you push or to scroll up or down the numeric value or alphabet or when push to move the digit you can execute continuous operation by holding down the relevant switch longer Holding down the switch longer automatically executes the operation cont...

Страница 48: ...ISPLAY 1 DSPL1 2 DSPL2 3 CS VAL 4 CS UNIT 5 EXIT When you push the cursor at the function display disappears and the cursor goes to the display field of the setting items list B DISPLAY 1 DSPL1 2 DSPL2 3 CS VAL 4 CS UNIT 5 EXIT Every time you push the cursor rolls down by one item at a time Pushing further when the cursor is positioned at the bottom causes the cursor to return to the top item DSPL...

Страница 49: ...it of unit will change the unit to the next unit In addition if a natural number is used a decimal point as well as the numeric value appears R1 10 0000 m s Ready to change the setting value Pushing moves the cursor to the next digit R1 05 0000 m s Ready to change the setting value Change the setting value using and In this example 5 000 m s is set R1 05 0000 m s SET OK Pushing sets the data tempo...

Страница 50: ...urns you to the menu screen C RANGE 1 R TYPE 2 R1 3 R2 4 R3 5 R4 6 R HYS 7 EXIT EXIT OK Push and move the cursor to EXIT and then push a message appears to confirm whether it is OK to exit or not When you push here the screen does not move to the measurement mode and returns to the menu screen When you push here the screen does move to the menu configuration selection screen 5 000 m s 12 345 m3 If...

Страница 51: ...ay2 Returns to meas mode C RANGE Range type Range1 Returns to meas mode D FILTER Damping value Returns to meas mode E LOW CUT Low cut Value Returns to meas mode F ZERO Still water zero point adjustment Returns to meas mode H DO Digital output 1 Digital output 2 Returns to meas mode I DI Digital input Returns to meas mode J CNT PLS Count rate Pulse width setting mode Pulse width Returns to meas mod...

Страница 52: ...eturns to meas mode J CNT PLS Count rate 1 Pulse width setting mode 1 Pulse width 1 Returns to meas mode K PRESET C Preset count value 1 Preset output function 1 Returns to meas mode L H L ALM1 High alarm ON OFF 1 High alarm Value 1 Low alarm ON OFF 1 Low alarm value 1 Returns to meas mode M H L ALM2 HH alarm ON OFF 1 HH alarm Value 1 LL alarm ON OFF 1 LL alarm value 1 Returns to meas mode N SELF ...

Страница 53: ... the protected functions see the menu configuration table on the previous page Password is a 3 digit number If 000 is set for the password the password input screen does not appear If a password is set other than 000 is set you have to enter your correct password Limitation of totalizer operation Start and stop operations only are permitted Clear operation is not permitted ...

Страница 54: ... LIM RATE LIM TIME 8 2 12 Low cut value CUT VAL 8 2 13 Display low cut DSPL SET 8 2 14 Still water zero point Adjustment ZERO ADJ 8 2 15 Manual zero MANUAL 8 2 16 Output at alarm occurrence ALM 4 20 8 2 17 Output low limit LOW LIM 8 2 18 Digital output DO1 FUNC DO2 FUNC DO1 STAT DO2 STAT 8 2 19 Digital input DI FUNC DET LVL 8 2 20 Count rate Pulse width setting mode Pulse width CNT RATE PLS MODE P...

Страница 55: ...e basic parameters are displayed Nothing is displayed in the field of other parameters DETAILED All parameters are displayed PREVIEW Only reading of all parameters is possible When switch is pushed the screen switches When switch is pushed the mode returns to the measurement mode ZERO ADJ Moves directly to the still water zero point adjustment screen See 8 2 14 Still Water Zero Point Adjustment PL...

Страница 56: ... in this example appears Then push Pushing returns you to the setting menu STEP2 EXC CUR 0 1900 A The switches at the bottom change are shown At the same time the cursor appears The digit indicated by the cursor is highlighted Then push STEP3 EXC CUR 0 1900 A You can continue to change the setting value Push to move the cursor to the digit you want to change You can hold down the switch longer for...

Страница 57: ...ue from 0 2150A again Note The setting range of excitation current value is from 0 0000A to 0 3200A If you try to set an exciting current value larger than 0 3200A an error message appears and the setting value returns to the previous value 8 2 3 Meter Size Proceed as follows to check the meter size of the detector Switch operation Display example Description A DETECTOR 1 EXC CUR 2 SIZE 3 EXC FREQ...

Страница 58: ...t m s Count rate If the count rate goes out of the setting range when the meter size is changed the count rate will be forcefully set to zero Note 3 The exciting frequency setting may become inappropriate for the set value when the meter size of the detector is changed If the exciting frequency is the value shown below when the meter size is changed the exciting frequency will be forcefully change...

Страница 59: ... can set the flow direction of fluid arbitrarily Flow direction setting Selection item Contents NORMAL When the fluid flows in the direction of the arrow indicating the flow direction that is attached to the detector the indicator value and electric current output value increase SWITCH When the fluid flows in the reverse direction of the arrow indicating the flow direction that is attached to the ...

Страница 60: ...er the setting is OK or not If OK push If you need to redo the setting push Pushing cancel the setting operation and exits the setting screen 8 2 6 Display Setting You can select one of the engineering units listed below as a flow measurement unit Flow velocity unit m s ft s Flow rate unit Note3 m3 s m3 min m3 h m3 d L s L min L h L d mL s mL min mL h mL d gal s gal min gal h gal d bbl s bbl min b...

Страница 61: ...m the setting item selection menu STEP1 DSPL1 The currently set display setting in this example appears Then push Pushing returns you to the setting menu STEP2 DSPL1 The switches at the bottom change are shown At the same time the cursor appears STEP3 DSPL1 mL s Push to move the cursor from the second unit to the third unit and change the display unit by pushing Repeat this operation to change the...

Страница 62: ...easured value indication changes accordingly When the desired item is selected push to set the item temporarily STEP2 DIGIT1 1 00 m s SET OK Pushing shows a message to confirm whether the setting is OK or not If OK push If you need to redo the setting push Pushing cancels the setting operation and exits the setting screen Note If the setting is cancelled without completing the display digit settin...

Страница 63: ...ribed below The following is an example to change the Display 1 setting from Fixed forward totalized flow F to Bidirectional flow B Switch operation Display example Description DSPL1 m3 F Select DSPL1 from the setting item selection menu The currently set display setting m3 F in this example appears Then push STEP1 DSPL1 m3 F The switches at the bottom change are shown At the same time the cursor ...

Страница 64: ...uch as instantaneous flow rate display unit such as m s and m3 min displayed values such as totalized flow and pulse out will not be applied The details see 10 10 Custom unit function The following is an example to change the custom coefficient from 1 00 to 2 25 Switch operation Display example Description B DISPLAY 1 DSPL1 2 DSPL2 3 CS VAL 4 CS UNIT 5 EXIT Select CS VAL from the setting item sele...

Страница 65: ... is selected for display setting For custom unit setting you can set any combination of characters within 7 characters The following is an example to change the custom unit from AAA BBB to XXX ZZZ Switch operation Display example Description B DISPLAY 1 DSPL1 2 DSPL2 3 CS VAL 4 CS UNIT 5 EXIT Select CS UNIT from the setting item selection menu STEP1 CS UNIT AAA BBB The currently set custom unit AA...

Страница 66: ... ｚ Special character Space 8 2 9 Span Range You can set the following constants in this setting item 1 Range type 2 Unit of span can be changed in Range 1 3 Span 4 Hysteresis Range type Multiple ranges can be used by selecting the range type You can select a single range multiple ranges or forward reverse multiple ranges Select one from five types shown below Selection items display Description SI...

Страница 67: ...wable range If this happens the following message appears after all ranges are set and the screen goes to the count rate pulse rate setting sequence HIGH OVER CNT RATE or LOW OVER CNT RATE In this case set the count rate pulse rate again in accordance with 8 2 20 Count Rate Pulse Width Setting Mode and Pulse Width Unit of span The span setting is performed for Range 1 The same unit as that of Rang...

Страница 68: ...of Range 1 to Hysteresis forcefully appears one after another If the setting is cancelled halfway all of the settings including the ones already set will be cancelled You can check or change each constant as described below Checking each constant Switch operation Display example Description C RANGE 1 R TYPE 2 R1 3 R2 4 R3 5 R4 6 R HYS 7 EXIT Select R1 from the setting item selection menu R1 5 0000...

Страница 69: ...XIT Select R TYPE from the setting item selection menu STEP1 R TYPE SINGLE The currently set range type SINGLE in this example appears Then push Pushing returns you to the setting menu STEP2 R TYPE 4F 0R The switches at the bottom change are shown At the same the cursor appears The item indicated by the cursor is highlighted Then push STEP3 R TYPE 2F 2R You can continue to change the setting item ...

Страница 70: ... 100 L min Switch operation Display example Description STEP1 R1 2 00000 m s Select R1 from the setting item selection menu The currently set span value of Range1 2 00000 m s in this example appears Then push STEP2 R1 2 00000 m s The switches at the bottom change are shown At the same time the cursor appears STEP3 R1 2 00000 m s Push to move the cursor to the digit of the first unit STEP4 R1 3 930...

Страница 71: ...e case of custom unit time unit is not displayed In the case of custom unit character string set in 8 2 8 Custom Unit Setting is displayed Identification character showing the custom unit is displayed at the head of custom unit Changing the hysteresis The hysteresis used for multi range switching is set to 3 with respect to Range 1 when the flowmeter is shipped from the factory unless otherwise sp...

Страница 72: ...amping constant the more the output is averaged But the response to an input change will be slower The damping constant can be set as follows The damping constant is set for 0 0 sec 0 5 sec and 1 to 200 sec in increments of 1 second Note 0 0 sec setting will work as equal to 0 1 sec damping constant Set 1 sec or more for normal operation If you set a value exceeding 200s it is forcibly changed to ...

Страница 73: ... of change limit set in percent value to the span of measuring range and control limit time set in second are used and if the flow rate signal sampling value exceeds the rate of change limit value based on the previous average value of the flow rate signal the converter rejects the sampling value and outputs the average value including the maximum value of the rate of change value In addition if t...

Страница 74: ...E 10 0 The switches at the bottom change are shown At the same time the cursor appears STEP3 LIM RATE 15 0 Push to move the cursor to the desired digit and push to change the number of the digit STEP4 END LIM RATE 15 0 SET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the setting operation and exits th...

Страница 75: ...etting item selection menu STEP1 CUT VAL 01 0 The currently set low cutoff value 01 0 in this example appears Then push STEP2 CUT VAL 01 0 The switches at the bottom change are shown At the same time the cursor appears STEP3 CUT VAL 03 0 Push to move the cursor to the desired digit and push to change the number of the digit STEP4 END CUT VAL 03 0 SET OK When you push a message appears to confirm w...

Страница 76: ... LINEAR 5 0 LOW CUT 0 0 You can check or change the display low cutoff as described below The following is an example to change the setting from LINEAR to LOW CUT Switch operation Display example Description E LOW CUT 1 CUT VAL 2 DSPL SET 3 EXIT Select DSPL SET from the setting item selection menu STEP1 DSPL SET LINEAR The currently set low cutoff setting LINEAR in this example appears Then push P...

Страница 77: ...O ADJ 1 2 The current flow rate measurement value appears Then push and hold longer Pushing returns you to the setting menu STEP2 Longer ADJ READY 1 2 The title display changes to ADJ READY and the converter is ready for zero adjustment Pushing returns you to the previous screen STEP3 NOW ZERO ADJUSTING Pushing starts zero adjustment STEP4 END ZERO ADJ 0 0 Zero adjustment ends in several seconds a...

Страница 78: ...ng range Range 1 of the converter See the following example Example Flow rate value to setting span Actual flow rate obtained from other instrument 10 0 m3 min 50 0 Converter s measured value 10 5 m3 min 52 5 Manual zero adjustment value 2 5 If manual zero adjustment value is set to 2 5 the converter output is shifted by 2 5 and the output of 50 0 will be obtained The following is an example to ch...

Страница 79: ...form still water zero adjustment with water held still the manual zero adjustment value will be cleared to 0 0 8 2 16 4 20mA Alarm Output Setting The 4 20mA alarm output setting is the function to fix the current output to a selected fixed value if an alarm occurs when self diagnosis function is performed The 4 20mA alarm output value can be selected from the following table The 4 20mA alarm outpu...

Страница 80: ... 4 20 4mA SET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the setting operation and exits the setting screen 8 2 17 Output Low Limit Setting The low limit of the current output for converter can be set The output low limit can be selected from the items listed in the table below Output low limit sett...

Страница 81: ... indicated by the cursor is highlighted Then push STEP3 LOW LIM 2 4mA You can continue to change the setting item Push to change the selection items Selected item is scrolled up Selected item is scrolled down When the desired item is selected push to set the item temporarily STEP4 END LOW LIM 2 4mA SET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you...

Страница 82: ...pulse output PLS OUT is selected pulses of forward and reverse directions will be output For setting method of the range type see 8 2 9 Span Range Digital output active status Only when alarm output is set Selection items Alarm output action NormCLOSE Normal Contact closed Alarm out Contact open NormOPEN Normal Contact open Alarm out Contact closed Changing the digital output function The followin...

Страница 83: ... When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the setting operation and exits the setting screen 8 2 19 Digital Input Digital input functions can be selected You can select the digital input function from the table shown below For details of digital input functions see 10 Functional Description Digital i...

Страница 84: ...nal Totalizer START Changing the digital input function The following is an example to change the Digital Input DI function from No use NO USE to Totalizer Start Stop CNT ST SP Switch operation Display example Description I DI 1 DI FUNC 2 DET LVL 3 EXIT Select DI FUNC from the setting item selection menu STEP1 DI FUNC NO USE The current setting NO USE in this example appears Then push Pushing retu...

Страница 85: ...ide of this range an error message HIGH OVER SPEC or LOW OVER SPEC appears and the value returns to the previous value Note Count rate setting range Example In the case the range is 108m3 h 0 03m3 s Minimum value for 10800000 pulse h 108 m3 h 10800000 pulse h 0 00001m3 0 01L liter Maximum value for 3 6 pulse h 108 m3 h 3 6 pulse h 30m3 The pulse width must be set to a value within the range of 0 3...

Страница 86: ...ng range Example 1 In the case the range is 108m3 h 0 03m3 s and the count rate is 0 00003m3 Since the pulse rate is 108 m3 h 0 00003 m3 3600000 pulse h 1000 pulse s the period of pulse frequency at full scale is 1ms Therefore the pulse width can be set only to 1ms 40 0 4ms only Example 2 In the case the range is 108m3 h 0 03m3 s and the count rate is 30m3 Since the pulse rate is 108 m3 h 30 m3 3 ...

Страница 87: ...E 10 0000 L Push to move the cursor to the digit of the unit and push to change from m3 to L STEP4 CNT RATE 0 90000 L Push to move the cursor to the digit you want to change and push to change the number of the digit STEP4 END CNT RATE 0 90000 L SET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the set...

Страница 88: ...ng Note 3 Relationship between the count rate and totalizer operations Count rate is set to zero while totalizer is in operation Totalizer will be forced to stop Count rate is set to other than zero Totalizer starts counting again If the count rate is changed from a value other than zero to other value the operation of totalizer does not change Note 4 If the pulse width setting mode is set to MANU...

Страница 89: ...rrently set value 500 in this example appears Then push STEP2 PRST VAL 00000500 The switches at the bottom change are shown At the same time the cursor appears STEP3 PRST VAL 00001000 Push to move the cursor to the digit you want to change and push to change the number of the digit STEP4 END PRST VAL 00001000 SET OK When you push a message appears to confirm whether the setting is OK or not If OK ...

Страница 90: ...eset count to 1 2 5 25 125 10n If you set a value that does not meet this condition the preset output timing may be shifted when the totalizer overflows You can check or change the preset mode as described below The following is an example to change the present mode from Output condition hold HOLD to One shot pulse output with pulse width of 50ms 50ms PLS Switch operation Display example Descripti...

Страница 91: ...e setting operation and exits the setting screen 8 2 23 Flow Rate High Low Alarm and High High Low Low Alarm The high low limit high high low low limit of the flow rate at which an alarm is generated can be set as value of the span flow rate of the set maximum range The high low alarm and high high low low alarm values for flow rate can be set within the range of 10 to 110 percentage to Range 1 in...

Страница 92: ...SET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the setting operation and exits the setting screen Changing the high low alarm value The following is an example to change the high alarm value from 105 to 103 Switch operation Display example Description L H L ALM1 1 H SET 2 H VAL 3 L SET 4 L VAL 5 EXI...

Страница 93: ...8 2 24 Mag Prover Self Diagnosis ON OFF Setting You can select on off setting for Mag Prover s self diagnosis function If the self diagnosis function is set to OFF no error message is displayed even if any of the errors listed below occurs ROM error RAM error System parameter error Excitation cable is not connected or its wiring is open Excitation circuit failure ADC circuit error Totalizer data i...

Страница 94: ...emporarily STEP4 END SELF CHK ON SET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the setting operation and exits the setting screen 8 2 25 Fixed Value Output The fixed value output function is used to output a fixed current and or a fixed pulse output independently of the flow rate signal The fixed p...

Страница 95: ...ut function The following procedure shows how to set the fixed output to ON and set the fixed current value fixed pulse value The fixed current value and fixed pulse value can be set independently Switch operation Display example Description O FIX OUT 1 FIX SET 2 CUR VAL 3 PLS VAL 4 EXIT Select FIX SET from the setting item selection menu STEP1 FIX SET OFF The current setting OFF in this example a...

Страница 96: ...ET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the setting operation and exits the setting screen STEP8 PLS VAL 00000 PPS The screen automatically changes to the fixed pulse rate setting screen The currently set value 0 PPS in this example appears STEP9 PLS VAL 00100 PPS Push to move the cursor to th...

Страница 97: ...he fixed output actually starts when the fixed output pulse value setting is completed If the fixed output current value or fixed output pulse value is set independently the fixed output starts when either of the setting is completed 8 2 26 Password Setting The password function is provided to prohibit the settings and adjustment for some of the functions affecting the flow measurement See the set...

Страница 98: ...453 Push to move the cursor to the digit you want to change and push to change the number of the digit STEP4 END PASSWORD 453 SET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the setting operation and exits the setting screen Note 1 If you set 000 for the password it is considered as if the password i...

Страница 99: ... LCD ADJ 3 SW POSN 4 EXIT Select LCD ADJ from the setting item selection menu STEP1 LCD ADJ 3 The current setting 3 in this example appears Then push Pushing returns you to the menu screen STEP2 LCD ADJ 3 The switches at the bottom change are shown At the same time the cursor appears The item indicated by the cursor is highlighted Then push STEP3 LCD ADJ 5 DARK You can continue to change the setti...

Страница 100: ...the front facing you 2 Switch position BOTTOM Standard The infrared switches are located at the bottom with the front facing you 3 Switch position LEFT The infrared switches are located at left with the front facing you 4 Switch position RIGHT The infrared switches are located at right with the front facing you A DETECTOR 1 EXC CUR 2 SIZE 3 EXC FREQ 4 FLOW DIR 5 EXIT ESC Infrared switches Infrared...

Страница 101: ...TEP3 SW POSN TOP You can continue to change the setting item Push to change the selection items Selected item is scrolled up Selected item is scrolled down When the desired item is selected push to set the item temporarily STEP4 END SW POSN TOP SET OK When you push a message appears to confirm whether the setting is OK or not If OK push If you want to redo the setting push Pushing cancels the sett...

Страница 102: ... low cutoff LINEAR Manual zero 0 0 4 20mADC alarm output 4mA Output low limit setting 4mA Digital output 1 NO USE Digital output 2 NO USE DO1 DO2 active status NormOPEN Digital input NO USE DI detective level H LEVEL Count rate 100 gal Pulse width setting mode AUTO Pulse width 5 ms Preset count 00000000 Preset function HOLD High alarm On Off OFF High alarm value 0 0 Low alarm On Off OFF Low alarm ...

Страница 103: ...ge 1 SI unit Range 1 English unit Meter Size mm inch Ex Freq Hz m3 h m s gal min ft s Count rate gal 25 1 400 6 3 395 75 31 625 1 40 1 5 200 15 3 316 175 28 826 1 50 2 200 25 3 537 300 31 625 10 80 3 200 60 3 316 650 26 766 10 100 4 100 100 3 537 1000 26 354 10 ...

Страница 104: ...ero and span of the converter and the excitation current value as described below However calibration is already performed when shipped from the factory Do not perform change calibration unless it is specificity required Items Function items Display example 9 2 1 0 flow rate calibration CAL 0 9 2 2 50 flow rate calibration CAL 50 9 2 3 100 flow rate calibration CAL 100 9 2 4 Checking the excitatio...

Страница 105: ...using the internal simulation signal appears Then push and hold longer Pushing returns you to the setting menu STEP2 Longer ADJ READY 0 1 The title of the screen changes to ADJ READY and the converter is is ready for calibration Pushing returns you to the previous screen STEP3 NOW 0 ADJUSTING Push to start calibration for 0 flow rate STEP4 END CAL 0 0 0 It takes several seconds to perform calibrat...

Страница 106: ... circuit 100 flow rate calibration can be performed For calibration procedure see the calibration procedure for 0 flow rate For 100 flow rate calibration select CAL 100 from the setting menu 9 2 4 Checking the Excitation Current You can monitor the exciting current value Checking the exciting current value Switch operation Display example Description R CAL 1 CAL 0 2 CAL 50 3 CAL 100 4 EXC DSPL 5 E...

Страница 107: ...reverse ranges DO 1 Forward and reverse flows can be measured The forward and reverse flow measurements can be used together with multiple ranges function High Low alarm High High Low Low alarm DO 1 or 2 Outputs an alarm signal when the flow rate signal exceeds or lowers below the preset values Preset counter DO 1 When the totalizer count exceeds its preset value the converter outputs a contact ou...

Страница 108: ...00 mA maximum Digital Input DI Input signal 20 to 30 V dc voltage signal High input level 20 to 30 V dc Low input level 2 V dc maximum Input resistance Approximately 2 7 kΩ Number of inputs One point Each I O terminal can be used as a specified function terminal when selected Terminal COM is the signal COMMON for the other three terminals DO1 DO2 and DI Each terminal is isolated from the internal ...

Страница 109: ...is MANUAL set it after checking the acceptable signal width of the receiving instruments If pulse output is not used pulse width setting is not needed DO setting Refer to 8 2 18 Digital Output to set the Digital Output 1 DO1 for Pulse output PLS OUT If the digital output function is not set NO USE though count rate is set it will be set to pulse output automatically If pulse output is not used thi...

Страница 110: ...le 1 Range 108m3 h 0 03m3 s Count rate 0 00003m3 Since the pulse rate is 108 m3 h 0 00003 m3 36000000 pulses h 1000pulses p the period of pulse frequency at full scale is 1ms Therefore the pulse width can be set only to 1ms 40 0 4ms Example 2 Range 108m3 h 0 03m3 s Count rate 30m3 Since the pulse rate is 108 m3 h 30 m3 3 6 pulse h 0 001 pps the period of pulse frequency at full scale is 1000000ms ...

Страница 111: ...tches are shown is displayed while the totalizer is in operation and is displayed when it is stopped If an erroneous password is input when password is asked or if it is a sealed specification is not displayed CNT CTRL 12345679 FRD When you push the totalizer starts counting and appears on the screen In addition changes to Longer CNT CTRL 12345679 FRD CLR OK When you push and hold longer a confirm...

Страница 112: ...ing to 8 2 19 Digital Input Operation with digital input Default setting Control signal level is in H level Digital input functions DI input Totalizer and pulse output operation L level Stops the totalizer and pulse output Totalizer Start Stop H level Pulse signal is outputted H level Clears the count and stops the totalizer Totalizer Reset Start L level Pulse signal is outputted You can reverse t...

Страница 113: ...idirectional flows multiple ranges selected by external signal Proceed as follows to use the multi range function Range setting Refer to 8 2 9 Span Range to set as follows 1 Select the Range type 2 Set the span for Ranges 1 to 4 3 Set the Hysteretic value DO DI setting Refer to 8 2 18 Digital Output and 8 2 19 Digital Input to set Digital Output 1 DO1 and or Digital Output 2 DO2 to use them as Ran...

Страница 114: ...ith an internal signal Range output No 1 ON OFF ON OFF Range output No 2 ON OFF Current output when fluid flows in the reverse direction is the value set for the output low limit any one of 2 4 3 2 4 0mA 0 4mA Hysteresis 0 25 20mA 125 100 Output Range 4 Range 3 Range 2 Range 1 Reverse 0 Forward direction Flow rate direction ...

Страница 115: ... output Reverse direction 0 Forward direction Flow rate Range 2 Range 1 Hysteresis Range 4 Range 3 125 100 4mA Hysteresis Range output No 2 ON OFF Range output No 2 ON OFF Output 0 Low cutoff x 1 25 Reverse direction 0 Forward Flow rate 4mA From reverse range to forward range 0 From forward range to reverse range Output Low cutoff x 1 25 Low cutoff x 1 25 Low cutoff x 1 25 Low cutoff x 1 25 Low cu...

Страница 116: ...an external signal External signal H level input L level input Range output No 1 ON OFF Current output when fluid flows in reverse direction is the output low limit setting any one of 2 4 3 2 4 0mA Reverse direction 0 Forward direction Flow rate Output 0 Range 2 Range 1 125 100 4mA ...

Страница 117: ...to Reverse direction change Reverse direction 0 Forward direction Flow rate Output Range 1 125 100 4mA 0 Range 4 Range 3 Range 2 Range output No 2 ON OFF Range output No 2 ON OFF 0 4mA 0 4mA Output Low cutoff x 1 25 Reverse direction 0 Forward Flow rate From reverse range to forward range From forward range to reverse range Output Low cutoff x 1 25 Low cutoff x 1 25 Low cutoff x 1 25 Low cutoff x ...

Страница 118: ...arms not used set its setting to OFF High High Low Low alarm setting Refer to 8 2 23 Flow Rate High Low and High High Low Low Alarm and set the high high alarm and or low low alarm to ON and set the limit value for high high alarm and or low low alarm For alarms not used set its setting to OFF DO setting Refer to 8 2 18 Digital Output to set the Digital Output 1 DO1 and Digital Output 2 functions ...

Страница 119: ... is set for the Range 1 When an alarm output condition occurs Digital output 1 and 2 change to the output status set for an alarm output condition Alarm output contact is open while the converter is powered off Alarm output Hysteresis 2 5 Output High limit value Low limit value Time Hysteresis 2 5 Alarm output Alarm output Alarm output Hysteresis 2 5 Output Range 1 High limit value Range 2 Low lim...

Страница 120: ...ode to select the desired preset output function DO DI setting Refer to 8 2 18 Digital Output and 8 2 19 Digital Input to set Digital Output 1 DO1 or Digital Output 2 DO2 for use as preset count function output In addition if you want to reset the totalizer by an external signal set the Digital Input DI as totalizer Reset Start signal Set DI FUNC to CNT RS ST Refer to 8 2 19 Digital Input to use t...

Страница 121: ...in H level DI counter control signal level H the totalizer is reset to zero and stops counting When the Reset Start signal goes to L level the totalizer starts counting The preset point output goes ON when the totalizer counts reaches the preset point and the output goes OFF when the totalizer is reset to zero H level input L level input Preset point Counter Reset Start signal DI detective level i...

Страница 122: ...al goes to H level the totalizer starts counting The preset point output goes ON when the totalizer counts reaches the preset point The output goes OFF when the totalizer is reset to zero or when it takes the time set pulse width from the output goes ON H level input L level input Counter Reset Start signal DI detective level is L Totalizer flow counts Preset point ON OFF Preset point output Count...

Страница 123: ... the preset value is changed to 200 adding the preset count of 100 to the current preset value of 100 Then the preset output goes ON when the count value exceeds the preset value of 200 and the preset output goes OFF when its width reaches the set pulse width When the preset value exceeds 200 the preset value is changed to 300 adding the preset count of 100 to the current preset value of 200 Total...

Страница 124: ...ake sure to output as one shot pulse set the preset value reach interval to be 2 signals or more of the pulse width setting value Preset Pulse Width The Interval of that Totalizer reaches the Preset Point Example Count rate 0 01 l Flow verosity 10 l s Totalizer count up rate 1ms COUNT 50ms More than 100ms Preset Count more than 100 500ms More than 1000ms Preset Count more than 1000 ...

Страница 125: ...lue Output A user specified 4 20 mA output and pulse output can be selected with a DI signal Proceed as follows to use this function Fixed value setting Set the fixed value for current output and for pulse output See 8 2 25 Fixed Value Output Set the fixed value output enable disable status to OFF If the pulse output is not used fixed value setting for pulse output is not needed DI function settin...

Страница 126: ...e appears on the Display 2 measured value screen If this happens the measurement item specified on the Display 2 screen cannot be displayed unless the error is removed However if OFF is set to 8 2 24 Self Diagnosis Function Setting an error does not appears even if an error occurs If you want to use a converter alarm output set Digital Output 1 DO1 or Digital Output 2 DO2 for converter alarm outpu...

Страница 127: ... normally open or normally close DI setting Set digital input DI function to RANGE SW in accordance with 8 2 19 Digital I O High Low limit alarm value setting Set high limit alarm and low limit alarm to ON and set alarm value to high and low alarms respectively in accordancewith 8 2 23 Flow Rate High Low High High and Low Low limit Alarm Setting Set the alarm not to use to OFF High High Low Low li...

Страница 128: ... range Example When Large range and Small range are set as below Large range Range 1 1000 m3 h Small range Range 2 500 m3 h And you want to set alarm values as below Large range alarm set values High limit value 800 m3 h Low limit value 600 m3 h Small range alarm set values High high limit value 400 m3 h Low low limit value 300 m3 h Set the alarm set values as below High limit value 80 800 m3 h 10...

Страница 129: ... the conversion coefficient of dL from m3 Custom unit setting Set the custom unit in accordance with 8 2 8 Custom Unit Setting Set the character string of unit to the custom unit In the case of this example set d L m i n The rest of 1 character is blank space because the maximum character number of the custom unit is 7 Display setting Set the display item to CUSTOM in accordance with 8 2 6 Display...

Страница 130: ...custom coefficient In the case of dL min set 10000 that is the conversion coefficient of dL from m3 Custom unit setting Set the custom unit in accordance with 8 2 8 Custom Unit Setting Set the character string of unit to the custom unit In the case of this example set d L m i n The rest of 1 character is blank space because the maximum character number of the custom unit is 7 Span setting Select t...

Страница 131: ...ustom unit Even if setting is fixed in this state the current output does not change R1 10000 0 dL min When the span value was changed after the custom unit selection the current output changes The span value is changed into 10000 from 20000 in display example The percent value doubles when setting is fixed in this state and the current output changes Note2 Setting range of the span value depends ...

Страница 132: ...on By adding an optional PROFIBUS communication board to the converter the converter can be used as a PROFIBUS PA slave device to communicate digital data with PROFIBUS master device For details of PROFIBUS communication refer to the instruction manual of PROFIBUS communication for LF546 11 1 Connections with HHT Terminal Connect the input cable of HHT terminal across the load resistance connected...

Страница 133: ...PDA Prepare a hand held terminal 2 Connect the HART interface cable and serial interface card supplied with AF900 to each other Connect Connect the alligator clip at the head of the HART interface cable to the current output line of the converter via a load resistor Start Turn on the power supply of the PDA to start the AF900 application software Preliminary communication Execute sensor communicat...

Страница 134: ...ence on 4 20mA current signal To communicate with the flowmeter a digital signal with amplitude of 0 4 to 0 8 V in the case of 500Ω load resistance with frequency of 1 2 to 2 2 kHz is superimposed on the 4 20mA current signal If a high response receiving instrument is connected to the current output line the superimposed communications signal may interfere with the instrument To prevent this inter...

Страница 135: ...If you try to set a value or a measuring unit outside of the specified range in the setting mode one of the following error messages appears to prevent erroneous setting LCD display Description Corrective action HIGH OVER SPEC Setting value exceeds the allowable high limit LOW OVER SPEC Setting value goes below the allowable low limit HIGH OVER CNT RATE Count rate exceeds the allowable high limit ...

Страница 136: ...is set the flow rate reading has exceeded the set value HIGH HIGH ALARM If high high alarm is set the flow rate reading has exceeded the set value LOW ALARM If low alarm is set the flow rate reading is below the set value LOW LOW ALARM If low low alarm is set the flow rate reading is below the set value Take necessary actions for the system OVER 125 The measured value is over 125 UNDER 125 The mea...

Страница 137: ...itation cables are not connected Connect the excitation cables correctly 5 EXC CUR ERROR An error occurred in the excitation circuit 6 ADC ERROR ADC error Internal components or printed circuit board must be repaired or replaced Contact Toshiba s salesperson in charge or distributor in your area ７ INVALID TOTAL Totalizer data in the memory was destroyed due to external noise No message appears if ...

Страница 138: ...stment cannot be performed INVALID TOTAL Measured data Measured data Measured data The error message disappears if you clear reset the totalizer count HIGH ALARM Measured data Measured data Measured data LOW ALARM Measured data Measured data Measured data HIGH HIGH ALARM Measured data Measured data Measured data LOW LOW ALARM Measured data Measured data Measured data Note 1 The display and output ...

Страница 139: ...o not live circuits While assembly of all components is not over DON T Protective performance degradation for hazardous location can cause explosion Install per the National Electrical Code for the US NEC ANSI NFPA 70 and the Canadian Electrical code for Canada CEC CAN CSA C22 1 and the drawing 3S8A2699 Refer to Appendix 2 DO Unsuitable conduit connections for hazardous location can cause explosio...

Страница 140: ...se replace the display unit with a new one In order to use the display unit stably for a long time it is preferable to replace it early For inspection and replacement please contact your nearest Toshiba representative Power supply unit also used for excitation board Electronic components deteriorate faster when the ambient temperature is high The life of the power supply unit in the converter is 9...

Страница 141: ...t power supply for each device Are power and I O cables installed correctly Install the cables correctly Refer to Chapter 5 Wiring Is the fuse not burnt Replace the fuse with a new one Is the flow range correctly set Set correctly Refer to Chapter 8 Configuration Parameter Setting Is the flow direction match with the arrow mark on the detector Install the detector correctly Refer to Chapter 4 Moun...

Страница 142: ... parameter setting NO YES Is the inside wall of detector pipe contaminated Clean the inside wall of the detector pipe YES NO Is the output load resistance as specified Design the output circuit so that the output load resistance is less than 750 Ω NO YES Calculate as shown on the left Are there two load resistors connected to the output in parallel Connect the two load resistors in series if neces...

Страница 143: ... the fluid carrying bubbles Design piping so that the fluid does not carry bubbles Install the flowmeter away from equipment producing electromagnetic or electro static interference Contact your nearest Toshiba representative NO NO YES YES Is there high voltage or large current cable or equipment near the flowmeter Is the flowmeter grounded with 100Ω or less ground resistance Ground the flowmeter ...

Страница 144: ...el to protect from rain and operate the EMF converter Is the control panel attached with dewdrop snow ice mud or oil Is the control panel hazed by steam Clean the attached or haze and operate the EMF converter Further place a cover to prevent from attaching Are you wearing dark color gloves Or are your finger or gloves stained Clean the stain on fingers or gloves or wear gloves in light color and ...

Страница 145: ...ocity V The following expression is applicable to the voltage E K B D V V Eq 14 1 Volumetric flow rate Q m3 s is Q V Eq 14 2 Using the Equation 14 1 and 14 2 E K B D Q E Q Eq 14 3 Therefore volumetric flow rate is directly proportional to the induced voltage Figure 14 1 Principle of Operation LF516 LF546 lectromagnetic flowmeter uses the square wave excitation method which provides long term stabl...

Страница 146: ... 0 to less than 50 0 25 FS 50 to 100 0 5 FS 0 5 of rate Note The accuracy above is measured under standard operating conditions at Toshiba s calibration facility Fluid conductivity 0 01 µS cm minimum Measurable fluid velocity 0 1 2 3 4 5 6 7 8 9 10 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 導電率 μS cm 流速ｍｓ Fluid temperature 10 to 120 C Ambient temperature 10 to 50 C Dimensions and Mass See Chapter 16 ...

Страница 147: ...Meaning that the ceramic tube detector withstands the shock of sudden cooling temperature difference 100 or less per 0 5 seconds at the cooling side or sudden heating temperature difference 150 or less per 0 5 seconds at the heating side Principle materials Case Stainless steel Lining Ceramic Grounding rings 316 stainless steel standard See Type Specification Code for optional materials and other ...

Страница 148: ... reverse direction double range Counter control input Internal totalization counter start stop reset control Output hold input The current output and pulse output are kept to their preset values Zero adjustment input Start still water zero adjustment Output Current output 4 to 20mAdc load resistance 750Ω or less Digital output 1 Output type Transistor open collector Capacity 30Vdc Max 200mA Number...

Страница 149: ...t optionally High and low alarm output High high and low low alarm output Empty alarm output Preset counter output Converter malfunction alarm output Multiple range high and low limit alarm output option Output display Full dot matrix 128 x 128 dot LCD with back light Communication signal Method protocol HART or PROFIBUS option Load resistance 240 to 750Ω HART Load capacity 0 25μF or less HART Str...

Страница 150: ... BS PN 10 BS PN 16 DIN PN 10 DIN PN 16 JIS 10K JIS 16K JIS 20K A Standard A B Lining material Note Alkali resistant ceramic tube alumina Standard Acid resistant ceramic tube alumina C D E H Grounding Ring Material 316 stainless steel Standard 316L stainless steel Ti Titanium Hastelloy C D E F Settable flow rate range and calibration flow rate range 0 5m s to 10m s Standard range calibration 0 5m s...

Страница 151: ...pose Mounting Structure A Detector Converter Combined type B Display LCD display provided Output 2 Current output 4 20 mA Status I O One pulse status output one status output and one input Communication function 1 2 HART protocol PROFIBUS PA Note 1 Power supply AC100 240V 50 60Hz Coating A Acryl resin baked coating pearl gray colored Z Other A A Standard Note When PROFIBUS communication is provide...

Страница 152: ...6 F 8 A 0 9 3 4 16 Outline Drawing Meter size mm L1 mm L2 mm φD1 mm Mass kg 25 80 241 66 Approx 4 kg 40 100 264 85 Approx 6kg 50 110 280 102 Approx 7 kg 80 110 306 127 Approx 8 kg 100 180 338 159 Approx 10kg ...

Страница 153: ...NEAR LINEAR Manual zero 0 0 0 0 4 20mADC alarm output 4mA 4mA Output low limit setting 4mA 4mA Digital output 1 NO USE NO USE Digital output 2 NO USE NO USE DO1 DO2 active status NormOPEN NormOPEN Digital input NO USE NO USE DI detective level H LEVEL H LEVEL Count rate Value 1 Value 1 Pulse width setting mode AUTO AUTO Pulse width 100 ms 5 ms Preset count 00000000 00000000 Preset function HOLD HO...

Страница 154: ...rom list Setting value in each size Range 1 SI unit Range 1 English unit Meter Size mm inch Ex Freq Hz m3 h m s gal min ft s Count rate gal 25 1 400 6 3 395 75 31 625 1 40 1 5 200 15 3 316 175 28 826 1 50 2 200 25 3 537 300 31 625 10 80 3 200 60 3 316 650 26 766 10 100 4 100 100 3 537 1000 26 354 10 ...

Страница 155: ... 154 6 F 8 A 0 9 3 4 Appendix 2 System block diagram for LF516 LF546 ...

Страница 156: ...6 F 8 A 0 9 3 4 Write down the address and phone number of the distributor from which you purchased this product the product code SER NO and so on Distributor Address Name Phone number Product code LF SER NO ...

Страница 157: ...FCF50017 ...

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