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Table 8.1 Troubleshooting (2)

No.

Trouble

Cause

Remedy

Inappropriate density
correction factor setting.

Calibrate span as described in
section 6.5.

Air accumulates and keep
staying inside the detector.
Or substance being
measured is sediment.

Very slow flow can be the cause.
Make the flow faster by using
smaller bore detector to prevent air
or substance from remaining in the
detector. If this does not solve the
problem, resort to vertical piping.

Large quantity of bubbles are
contained in the fluid.

Find out where the air is brought
in, and make necessary
adjustments. Keep mixer vanes
under water. Position the pump
inlet low enough. Keep fluid
pressure high (0.1MPa or more is
recommended).

Large quantity of bubbles are
contained in the fluid.

Remedy the locations containing
air bubbles. An example is to
position the blade of the agitator in
the tank below the fluid level.
Another example is to position the
inlet port of the pump sufficiently
below the fluid level.
Take necessary steps to make
the fluid pressure high (0.1MPa or
more is recommended).
It is desirable to install the meter
on the discharge port of the pump.
At the same time, make sure that
the meter is placed as far as
possible (closer to the pump) from
the pipe outlet for air release.

5

Too much difference
between measured
density and manual
analysis value

6

Measured density
varies widely and does
not agree with manual
analysis value.

The pipeline where the
detector is installed is not
filled with the substance to
be measured that flows.
Or air remains in the pipeline
where the detector is
installed.

Keep the tube always filled up with
fluid by closing the downstream
valve slightly or add a relief valve.
Installing the density meter on the
outlet side of the pump can help
eliminate the cause of those
troubles. Vertical piping is
recommended for filling the pipe.

7

Suitable location
varies depending on
density.

Zero point is off.

Calibrate zero point as described
in Section 6. 4, then calibrate
span described in Section 6.5

The electric conductivity of
the measured matter is too
high.

Check if the electric conductivity
is within the specified range.
If the electric conductivity is
beyond the range, send its
measurement results and
self-diagnosis data to our Service
Department.

8

Output is either
unstable or unsuitable.

Converter failure

Send self-diagnosis data to our
Service Department.

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Содержание Density (Consistency) Meter LQ500

Страница 1: ...6 F 8 A 0 5 2 1 OPERATION MANUAL DENSITY METER TYPE LQ500 ...

Страница 2: ......

Страница 3: ... efficient and safe operation Always keep the manual in a place where you can easily access About Safety Precautions Carefully read the Safety Precautions that appear in the following pages before using the Meter The safety signs used in the Safety Precautions will appear again in the following sections for your safety Notice 1 Do not copy or transcribe this manual in part or entirety without writ...

Страница 4: ...ight wounds burns high or low temperature electric shock broken bones poisoning etc which leave after effects or which require hospitalization or a long period of outpatient treatment of cure Note 2 Minor or moderate injury refers to cases of burns electric shock etc which do not require hospitalization or a long period of outpatient treatment for cure equipment damage refers to cases of extensive...

Страница 5: ...en securely tightened to the end Overturning or dropping can cause injuries or equipment failure DON T Do not operate where there is a possibility of leakage of flammable or explosive gas A fire or explosion can occur CAUTION DO Avoid installing the meter in any of the following places Otherwise a fire or equipment breakdown or failure can occur l Dusty place l Place where corrosive gases SO2 H2S ...

Страница 6: ...hout switching off the main power line can cause electric shock DO Use crimp terminals with insulation sleeves for power line and grounding wire terminals A disconnected cable or wire from the terminal or a loose terminal can cause electric shock or generate heat and cause a fire or equipment failure DO Wiring and cabling should be done as shown in the wiring and connection diagrams Wrong wiring o...

Страница 7: ...rminal block during maintenance or inspection If it is necessary to touch the terminal block set the power switch on the equipment to the OFF position in advance Failure to observe this can cause electric shock DON T Do not attempt disassemble or modify the equipment Failure to observe this can cause electric shock or equipment failure DON T Do not touch the detector pipe when high temperature liq...

Страница 8: ...product is manufactured under strict quality control but components might fail and if this product is likely to be applied to a system that concerns with human life or it is likely to be applied to a facility that may cause serious effects please give special consideration to make the system safe regarding the operation maintenance and management of the system This product is not approved as an ex...

Страница 9: ...own below appears in the left margin of a page The NOTE gives you directions to follow in the following instances To use product correctly and effectively To prevent abnormal or degrading performance of the product To prevent faulty actions To store the product when you do not use the product for a long time NOTE Sign ...

Страница 10: ...f noise Noise can interrupt correct measurement NOTE Perform periodic maintenance and inspection A long period of reliable measurement requires periodic span calibration NOTE Be careful not to let water or moisture into the applicator mount of the detector converter or cable ends Water or moisture can adversely affect performance and shorten parts service life Close the covers and doors securely a...

Страница 11: ...tter remains in its pipe About disposal NOTE When you dispose of this density meter follow the ordinance or regulations of your state FCC notice This equipment has been tested and found to comply with the limits for a field disturbance sensor pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation Th...

Страница 12: ...31 5 2 1 Main menu 31 5 2 2 Setting keys 32 5 2 3 Menu display 33 5 2 4 Monitoring menu display and operating procedures 36 5 2 5 Setting menu display and operating procedures 37 5 2 6 Measuring mode display and operating procedures 38 5 2 7 Reading of parameters display and operating procedures 38 5 2 8 Measured values display and operating procedures 41 5 2 9 Self diagnosis data display operatin...

Страница 13: ...shooting 71 8 2 Error Indications and Recovery Operations 73 9 CORRECTIONS IN DENSITY CALCULATION 75 9 1 Density Calculation 75 9 2 Various Kinds of Corrections 76 9 2 1 Phase angle rotation correction 76 9 2 2 Fluid temperature correction 76 9 2 3 RF correction 77 9 2 4 Ambient temperature correction 77 9 3 Phase Angle Rotation Correction Details 78 9 3 1 Care point concerning phase angle rotatio...

Страница 14: ...ection factor 88 10 5 Additives Correction Factor 92 10 5 1 Additive Correction Function 92 10 5 2 Density calculation 93 10 5 3 Procedures for using the additives correction function 94 10 5 4 How to set the additives correction function 95 10 5 5 Simplified Correction on Additives 96 10 6 LINEARIZER SETTING 97 10 6 1 Linearizer function 97 10 6 2 Linearizer setting 98 10 7 Density Multiplier Swi...

Страница 15: ...ce method by microwaves When microwaves go through a substance and comes out of it by measuring the phase lag of the waves we get a certain physical property of the substance that is proportional to the density The theory of density measurement based on the phase difference method is shown in Figure 1 1 The difference between the phase lagθ1 of the microwave received through water density 0 and th...

Страница 16: ...ed of flow Taking density measurements captivating the dielectric change following the density change in the measured matter this method is not affected by the speed of flow 5 Not easily affected by the pulp material type or freeness Taking density measurements captivating the dielectric change following the density change in the measured matter the new method has the feature of not easily affecte...

Страница 17: ...zed terminal for communications Therefore please purchase one separately 2 2 Standard Accessories Table 2 1 Standard accessories Accessory Specifications Qty Power supply cable Used to supply DC power from the converter to the RF section detector Overall diameter 11 0 to 13 0 mm JCS 258 C 2 core CVV S 10m 32 8ft Communication cable Used between the converter and the RF section detector to communic...

Страница 18: ... the following places Otherwise a fire or equipment breakdown or failure can occur l Dusty place l Place where corrosive gases SO2 H2S or flammable gases may be generated l Place exposed to vibration or shock that exceeds permissible level l Place exposed to condensation due to abrupt change in temperature l Place too cold or hot for installation l Place too humid for installation l Near an appara...

Страница 19: ...t possible provide a supporting base to hold the density meter 7 Install the meter in a place where density distribution is uniform If the distribution inside the pipe is uneven manual analysis data and the indicated value of the density meter may not show the same value 8 Install the meter in a place where air bubbles are not generated inside the pipe is always filled and sedimentation and accumu...

Страница 20: ...ily visible See Fig 3 3 3 9 When you anticipate a marginal error between the side to side dimensions of this density meter and the installation space of the piping line prepare a loose mechanism in advance 10 To minimize the impact of the bubbles mingled it is recommended that the meter be installed on a location as far as possible from the pipe outlet for air release but still within the distance...

Страница 21: ...valve Used to vent process fluids to open air when performing zero adjustment This helps the drinking water density or consistency 0 enter the detector pipe easily Install this valve in the top of the pipe in the case of horizontal installation Drain valve Used to drain the fluids before supplying drinking water density or consistency 0 to the detector pipe for zero adjustment Install this valve a...

Страница 22: ...own below In case the lifting wire rubs against the RF section the RF section may be damaged Care should be taken not to damage the RF section by applying cure such ascushioning materials between the lifting wire and the RF section A 2 A 2 Lifting wire RF section The center of gravity Stop valve Bypass piping Density meter Zero point water valve Zero water piping Stop valve Drain Direction of flow...

Страница 23: ...ring or cabling without switching off the main power line can cause electric shock DO Use crimp terminals with insulation sleeves for power line and grounding wire terminals A disconnected cable or wire from the terminal or a loose terminal can cause electric shock or generate heat and cause a fire or equipment failure DO Wiring and cabling should be done as shown in the wiring and connection diag...

Страница 24: ...rminal for each terminal connections 5 Consider wiring when installed so that vibration or sway will not be applied to cables 6 Output signal wires should be installed in thick walled steel conduit and separated from AC power supply control signal alarm signal and other wires that may become a source of noise 7 Signal wires of the density meter measured value 4 20 mA output should be a 2 conductor...

Страница 25: ...ity output 4 20mADC 750Ω or less isolated CVV CVVS Converter Power 100 to 240VAC 50 60Hz CVV DI COM COM1 DO1 FG AO AO COM2 DI2 L1 L2 DI3 Tx Tx Rx Rx SG FG 24 V 0V FG Tx Tx Rx Rx SG FG 24 V 0V Power cable Communication cable RF section FG Ec Ec Conductivity signal input 4 20mADC Note The FG wires of the dedicated cables A and B should not be connected to the FG terminal on the detector measuring se...

Страница 26: ...able 1 and the communication cable 2 Erroneous connection can cause a failure or an erroneous operation NOTE For connection between the converter and the RF section make sure to use the attached power cable 1 and communication cable 2 Using other cables can cause an erroneous operation Power supply Terminal block 24V 0V Tx Rx FG EC NC FG Tx Rx SG EC FG Communication Conductivity signal input 4 20 ...

Страница 27: ... 0 5 2 1 4 PART NAMES AND FUNCTIONS The detector is integrated with the converter in LQ500 Density meter 4 1 Detector Fig 4 1 1 Detector 3 Temperature detector RF section 2 Applicator section 1 Main pipe Detector ...

Страница 28: ...are built inside The applicator on the front in Fig 4 1 is for transmitting and the rear is for receiving Always keep the lids closed and the screws of the lids secured 3 Temperature detector The temperature detector RTD is for temperature correction It measures temperature of the fluid flowing through the main pipe 4 RF section This is the section that generates and detects microwaves and also pe...

Страница 29: ...nverter Figure 4 2 shows the converter with its door open 3 POWER indicator FUSE 2A T 250V 4 MEASURE indicator 5 ALARM indicator 6 LCD indicator 7 Setting keys 1 Power switch 2 Fuse 8 Terminal block 9 Cable gland FUSE 2A T 250V ...

Страница 30: ... when measuring stops at externally synchronized operation 5 ALARM Indicator Red LED Lights on error signal from the meter 6 LCD indicator Displays measured values set values and self diagnosis data etc Being an indicator of 20 characters by 4 lines it displays numerical values alphanumeric characters and symbols in accordance with needs 7 Setting keys These keys are used for switching between dis...

Страница 31: ...99 Zero point fluid temperature T0 zT Value at the time of factory adjustment 0 00 100 00 RF correction factor cG Value at the time of factory adjustment 9 99 9 99 Zero point RF data zG Value at the time of factory adjustment 0 00 100 00 Moving average times ma Time 1 Without moving averaging 1 99 Permissible width of change rate limit dx TS 0 00 NONE 0 00 9 99 Limit times of change rate limit HL ...

Страница 32: ... Loading additive ratio R3 0 000 0 000 1 999 Loading additive ratio R4 0 000 0 000 1 999 Loading additive ratio R5 0 000 0 000 1 999 Output at contact OFF in external synchronized operation ho 4mA Value immediately before 4mA simulated output in setting mode Availability of density multiplier switching D1 OFF NONE ON OFF Density multiplier at DI C2 1 000 0 000 9 999 Density multiplier at DI C3 1 0...

Страница 33: ...easuring modes operation modes of the normal continuous operation and the externally synchronized operation Measured density Output 4 20mA Measured density continuous output Density Test output Measured density continuous output LCD Density display Measured density value Density Test output Measured density valve Measure indicator On Off On Note Measured density value is output instead of Density ...

Страница 34: ...he simulated value as a result of mistakenly pressing the SET key twice in a row On the menu screen use this key to switch to the next menu screen In the state of setting numerical values use this key to move up the numeric value of the digit where the cursor is located Each time the key is pressed the numeric value changes incrementally as following 0 1 2 9 minus symbol decimal point 0 1 2 Note I...

Страница 35: ...ltiplier C Upper density measurement range UR Lower density measurement range LR Density line slope a Density intercept b Density test output ot Delayed time in external synchronized operation dt Zero point phase θ1 zp Zero point fluid temperature T0 zT RF correction factor cG Zero point RF data zG Moving average times ma Permissible width of change rate limit dx Read parameters Limit times of cha...

Страница 36: ...rmissible width of change rate limit dX Parameter setting Limit times of change rate limit HL Setting the permissible times of change rate limit HL Zero calib Zero calibration Zero calibration implementation verification Span calib Density multiplier C1 Setting the density multiplier C1 Upper angle UH Setting the upper angle UH Lower angle SH Setting the lower angle SH Angle rotation correction An...

Страница 37: ...R2 Setting the loading additive ratio R2 Loading additive ratio R3 Setting the loading additive ratio R3 Loading additive ratio R4 Setting the loading additive ratio R4 Additives correction Loading additive ratio R5 Setting the loading additive ratio R5 Output at contact OFF in external synchronized operation ho Selecting the output at contact OFF in external synchronized operation ho Availability...

Страница 38: ...ONITORING MENU 2 SETTING MENU 3 MEASURING MODE Menus of 1 READ PARAMETERS Data display of 2 MEASURED VALUES Data display of 3 SELF DIAGNOSIS Move the cursor to the menu number with key and press SET key Move the cursor to 1 with key and press SET key ESC Previous Menu ESC Previous Menu Note In actual display the cursor is blinking ...

Страница 39: ...D VALUES 3 SELF DIAGNOSIS Move the cursor to 2 with key and press SET key Test output will be valid CONTINUE ESC CANCEL 5 SET PARAMETERS 6 ZERO CALIBRATION 7 SPAN CALIBRATION 8 ANGLE ROTATION ESC Previous Menu ESC Previous Menu ESC Previous Menu ESC Previous Menu DN Pre menu UP Next menu DN Pre menu UP Next menu To get into 2 SETTING MENU it is necessary to further enter the password 8000 In the i...

Страница 40: ...ronized operation refer to Section 6 7 ESC Previous Menu Move the cursor to 1 with key and press SET key and select 1 READ PARAMETERS UR UPPER RANGE DATA 3 0 ESC RETURN LR LOWER RANGE DATA 0 0 ESC RETURN 1 READ PARAMETERS 2 MEASURED VALUES 3 SELF DIAGNOSIS C DENSITY MULTIPLIER DATA 1 000 C1 ESC RETURN The set value of the density multiplier C which is used for density calculation can be verified I...

Страница 41: ...delayed time unit minute from when the external contact input is turned ON until the measurement starts can be verified For details refer to Section 6 7 The phase at the time of zero calibration can be verified ESC Previous Menu ESC Previous Menu ESC Previous Menu ESC Previous Menu ESC Previous Menu a DENSITY LINE SLOPE DATA 0 0840 ESC RETURN b DENSITY INTERCEPT DATA 0 0 ESC RETURN ot DENSTY TEST ...

Страница 42: ...dx CHANGE RATE LIMIT DATA 0 00 ESC RETURN HL LIMIT TIMES DATA 0 ESC RETURN C DENSITY MULTIPLIER DATA 1 000 ESC RETURN DN Pre menu UP Next menu DN Pre menu DN Pre menu UP Next menu DN Pre menu UP Next menu DN Pre menu UP Next menu DN Pre menu UP Next menu ESC Previous Menu OI OUTPUT INTERVAL DATA HART 0s ESC RETURN DN Pre menu UP Next menu Which type of communication method is selected HART communi...

Страница 43: ... density calculated based on them in the upper right corner will blink synchronously with the data updating thus making it possible to verify that the data updating is definitely taking place ESC Previous Menu ESC Previous Menu ESC Previous Menu SL MICROWAVE SIG LVL DATA 53 dBm ESC RETURN Move the cursor to 3 with key and press SET key to select 3 SELF DIAGNOSIS ST STATUS GOOD ESC RETURN Whether t...

Страница 44: ...The converter s RF data concerning the micro wave phase measurement can be verified Normally the value is 10 to 70 The voltage of the 5 volt power supply can be checked G RF DATA DATA 50 00 ESC RETURN J 5V POWER SUPPLY DATA 5 00 ESC RETURN Mc MEMORY CHECK GOOD EPROM GOOD RAM GOOD EEPROM GOOD ST STATUS GOOD ESC RETURN pd REF PHASE DATA 0 0 ESC RETURN F MICROWAVE COEF DATA 1910 ESC RETURN DN Pre men...

Страница 45: ...et ESC Previous Menu ESC Previous Menu ESC Previous Menu SET Fix ESC Cancel The upper density measurement range whose current output is 20mA is set The lower density measurement range whose current output is 4mA is set The density line slope of the arithmetic expression for calculating the density from the phase measurement data etc is set Before shipping this is s et in accordance with the apertu...

Страница 46: ...tion factor used for density calculation is set Before shipment this value is already set in accordance with the product s characteristics in the shipping test If you change this value it will affect the performance therefore normally do not change it cG RF COEF DATA 0 00 SET CHANGE ESC RETURN cG RF COEF RANGE 9 99 9 99 DATA 0 00 SET SET ESC CANCEL SET Set SET Fix ESC Cancel ESC Previous Menu ESC ...

Страница 47: ...HL LIMIT TIMES RANGE 0 99 DATA 00 SET SET ESC CANCEL SET Set SET Fix ESC Cancel ESC Previous Menu The zero point RF data can be set in this menu through manual input Normally the zero point RF constant is automatically set when implementing the zero calibration The moving average times are set If the output averaged for density control etc is needed the value from 5 to about 10 is set If there is ...

Страница 48: ...ue so that the measured density value is corresponding to the manual analysis value For details refer to Section 6 5 Move the cursor to 6 with key and press SET key to select 6 ZERO CALIBRATION 5 SET PARAMETERS 6 ZERO CALIBRATION 7 SPAN CALIBRATION 8 ANGLE ROTATION ZERO CAL p PHASE 87 93 N 0 T TEMP 26 55 C X DENSITY 0 02 TS ZERO POINT CALIBRATION HAS BEEN COMPLETED SET Set New data displayed ESC P...

Страница 49: ... SET Set SET Fix ESC Cancel UH UPPER ANGLE DATA 260 SET CHANGE ESC RETURN Before shipping this value is set to 260 degrees Changing the setting may result in damaging the otherwise normal operation Therefore normally do not change the setting Before shipping this value is set to 100 degrees Changing the setting may result in damaging the otherwise normal operation Therefore normally do not change ...

Страница 50: ...logous each other the density of the crossover point A of the 2nd and 3rd lines is set In the event of three straight lines which closely analogous each other the density of the crossover point B of the 2nd and 3rd lines is set In the event of three straight lines which closely analogous each other the inclination K1 of the 1st line is set In the event of three straight lines which closely analogo...

Страница 51: ... 49 6 F 8 A 0 5 2 1 ...

Страница 52: ...us Menu By selecting MANU see the screen above and then pressing SET the electric conductivity of the measured object is made settable as the fixed value through manual input After the electric conductivity is entered SET is used to confirm the setting in MANU mode ESC Cancel UP First menu DN Pre menu UP and DN is used to switch between MANU LINE to select the method for setting the electric condu...

Страница 53: ...le to select the availability of the additives correction function If OFF is selected the following screen will not appear Each time the UP or DN key is pressed TOTAL MAIN are mutually alternated thus making it possible to switch between density calculations to be displayed If TOTAL is selected the density of the entirety in which the pulp and the additives are combined will be displayed If MAIN i...

Страница 54: ...s can be registered for additives correction This is used for selecting the parameter set number appropriate to the brand in the event of making measurements with additives correction or for selecting the parameter set number in the event of newly registering or changing an individual parameter The sensitivity of component 0 pulp is set The sensitivity of additive 1 is set In the same manner the s...

Страница 55: ...t SET Fix ESC Cancel R5 ADDITIVE RATIO RANGE 0 000 1 999 DATA 0 000 SET SET ESC CANCEL SET Set SET Fix ESC Cancel The additive ratio of additive 1 the mass ratio with regard to component 0 is set In the same manner the sensitivities of the following additives 2 to 5 are set s5 ADDITIVE SENS DATA 0 00 SET CHANGE ESC RETURN R1 ADDITIVE RATIO DATA 0 000 SET CHANGE ESC RETURN R2 ADDITIVE RATIO DATA 0 ...

Страница 56: ...nd among LAST VALUE immediately preceding value 4mA and TEST OUTPUT simulated output 0 0 to 99 9 TS when in setting mode SET is pressed with the mode display to select Up to four density multipliers can be switched around by the external voltage signal DI of two points This is used for switching the brand etc On this menu whether to perform the density multipliers switching ON or not OFF is select...

Страница 57: ...anceled OFF by the setting full scale the upper density measurement range the function can also be canceled by force through manual input However normally set it to ON Each time the UP or DN key is pressed ON OFF are mutually alternated NA N AUTO ADJUSTMENT RANGE ON OFF DATA ON SET SET ESC CANCEL SET Set SET Fix ESC Cancel ho 4 20mA IN EXT DATA 4mA SET CHANGE ESC RETURN C4 DensityMultiplier DATA 1...

Страница 58: ...ve closure Verifying the cable connection Verifying the converter power ON display Warm up Verifying and setting measurement conditions Filling up the density meter pipe with drinking water density 0 Zero calibration Pour the fluid to be measured Span calibration Startup See 6 2 1 See 6 2 2 See 6 2 3 See 6 3 1 1 See 6 3 1 2 See 6 3 2 1 and 2 See 6 4 2 to 10 See 6 4 11 to 15 See 6 5 Refer to 6 6 6 ...

Страница 59: ...ir respective terminal blocks It is verified that the ground grounding resister less than 100 Ω is reliably connected to this density meter In the event of performing an external synchronized operation the external contact input signal connected with ON OFF of the pump is required therefore make sure that the external contact input signal cable is reliably connected 6 3 Power on and Preparations f...

Страница 60: ...ovisional set values at the factory shipment If the those values are meet to the operation conditions of the plant rest it to an appropriate value in accordance with the operation conditions of the plant Verifying and setting the simulated output in setting mode Normal measurements are suspended while this density meter is in the setting mode see 2 SETTING MENU thus both the density display and th...

Страница 61: ... 59 6 F 8 A 0 5 2 1 ...

Страница 62: ...stop the flow in the pipeline where the detector is installed do so by for example turning off the pump If it is not allowed to stop the fluid flow through the pipeline When it is not permitted to stop the flow of the line bypass the flow by opening the valve on the bypass pipe It is recommended that the bypass piping be installed for adjustment maintenance purposes such as zero calibration in the...

Страница 63: ...the SET key 12 Check zero water density reading see Subsection 5 2 11 The measured density of zero water is displayed on the density indicator If the indicator shows 0 00 it means that the zero point is off toward the negative 13 Zero calibration see Subsection 5 2 11 If the zero point is found to be off press the SET key The data θ1 T0 zG of the zero point is replaced by the current data thus ren...

Страница 64: ...re to carry out the sampling when the density of the measured matter is in a stable state with the measured matter flowing 3 Manual analysis Put a part of the sample fluid into a 100 ml plastic beaker and measure the density of it using drying and weighing method of analysis 4 Calculation of density multiplier Use the result of analysis to calculate a density multiplier using the following equatio...

Страница 65: ...ress the SET key to switch over to the setting menu of the density multiplier and enter the density multiplier found in 4 Use the key to move from one digit to another Use the UP and DN keys to switch around the number of the relevant digit When the input is completed press the SET key to confirm it Then the display will be returned to the immediately preceding menu screen Verify that the resettin...

Страница 66: ... mode the density measurement will be suspended and the output will be switched to the simulated value that was set beforehand In the event that the external synchronized operation is selected the density measurement is suspended if the external contact input signal is turned OFF even in the measuring mode For details including the output when the density measurement is suspended refer to Section ...

Страница 67: ...cause the fluid to escape from the density meter thus either leaving it completely empty or insufficiently filled with fluid In such a situation the measured value of the density meter falls into error such as full scale excess shift to the minus side or occurrence of fluctuation within major marginal error It takes time for the pipeline where the density meter is installed to be filled sufficient...

Страница 68: ...up to the density meter and fill up the pipe after the shifting pump operation is started Use the key to move from one digit to another Use the UP and DN keys to switch around the number of the relevant digit When the input is completed press the SET key to confirm it Then the display will be returned to the immediately preceding menu screen Verify that the resetting has been done correctly 2 Sett...

Страница 69: ...o the operation mode menu 3 2 Verifying and setting the operation mode The current operation mode is displayed at DATA of the LCD indicator CONT refers to the mode of taking measures continuously without relying on the status of the external contact signal whereas EXT refers to the external synchronized operation mode If the current setting is CONT press the SET key to get into the setup screen of...

Страница 70: ...position before replacing the fuse Failure to observe this can cause electric shock DO Do not touch the terminal block during maintenance or inspection If it is necessary to touch the terminal block set the power switch on the equipment to the OFF position in advance Failure to observe this can cause electric shock DON T Do not attempt disassemble or modify the equipment Failure to observe this ca...

Страница 71: ...ree samples are desirable Check the appearance of detector accumulation of dirts scratches etc Any time NOTE If the density meter measured value deviates from the manually analyzed value to the extent of causing obstacles implement the span calibration changing the density multiplier C while referring to Section 6 5 If the density metermeasured value greatly deviates from the manually analyzed val...

Страница 72: ...iba s Service Dept In the event that the characters on the LCD display becomes weak in contrast or edge it is considered that the LCD display unit has reached the end of its life Although such unsatisfactory visibility may not affect the performance of the density measurement the display unit should be replaced if it interferes with the operation When replacing the display unit contact Toshiba s S...

Страница 73: ...cations 1 Converter power cannot be switched on Fuse 2A is blown Replace fuse 2 ALARM indicator lights density meter error contact output Fault in the density meter In accordance with Section 8 2 perform self diagnosis data check and restoration operations If ALARM indicator lights again send self diagnosis data to our Service Department 3 While the flow is stagnant the indicator is in error The f...

Страница 74: ...tall the meter on the discharge port of the pump At the same time make sure that the meter is placed as far as possible closer to the pump from the pipe outlet for air release 5 Too much difference between measured density and manual analysis value 6 Measured density varies widely and does not agree with manual analysis value The pipeline where the detector is installed is not filled with the subs...

Страница 75: ...e is located on 1 2 Switching to the self diagnosis menu see Subsection 5 2 7 In the monitoring menu use the key to move the cursor of the LCD indicator to the menu number 3 of 3 SELF DIAGNOSIS and then press the SET key 3 Checking the self diagnosis data see Subsection 5 2 9 Press the UP key to move from one self diagnosis data to another to check for any error To detect which numerical range is ...

Страница 76: ...ed on data numeric Usual range 90 to 40 dBm F Microwave coef MICROWAV E COEF Without error judgment based on data numeric Normal range 1825 1975 G Data concerning microwave phase measurement RF DATA Without error judgment based on data numeric Normal range 10 0 80 0 C J 5 V voltage 5V POWER SUPPLY Without error judgment based on data numeric Normal range 4 5 5 5 V pd Reference phase error REF PHAS...

Страница 77: ...orrections and the density calculations 9 1 Density Calculation This density meter measures the phase lag θ1 in the density zero water zero water which is the basis and the phase lag θ2 in the measured matter the difference θ θ2 θ1 of which being proportional to the density is used to obtain the density The density X of the measured matter is calculated in accordance with the following equation X ...

Страница 78: ...eeds 360 degrees to enter into the rotation after the next rotation set N 2 N will move up to 2 only if the meter is of large diameter and the density is high On the other hand if θ2 goes below zero 0 degree to enter into the previous rotation decrease N by one 1 In other words when it goes into the 1st rotation from the 0th one set N 1 and when into the 0th rotation from the 1st one set N 0 Note ...

Страница 79: ... to the fluid temperaturecorrection and RF correction the density meter is equipped with the ambient temperature correction function The correction is performed on θ2 as follows to obtain the phase difference θ Note Since ambient temperature correction function is an option ambient temperature correction factor ß must be set 0 00 θ θ2 α Τ Τ０ δ ＧＧ０ ß ＡＡ０ θ1 θ Phase difference degrees θ2 Actual ph...

Страница 80: ...g value is kept as the number of phase angle rotations N 9 3 3 Outline of automatic adjustment function of phase angle rotations Furthermore this density meter is equipped with the function of automatic adjustment of phase angle rotations This function judges whether the measured density calculated with the number of phase angle rotations N is proper or not in terms of the set density measurement ...

Страница 81: ...atic adjustment of phase angle rotations is automatically invalidated if the upper measured density range exceeds Xmax Check the operating conditions to see if the function of automatic adjustment of phase angle rotations is applicable or not NOTE In the cases where the automatic adjustment of phase angle rotations is not applicable after the density meter detector is temporarily made empty it is ...

Страница 82: ...the automatic adjustment of phase angle rotations is valid ON or invalid OFF Here if it is necessary to alter the setting press the SET key to switch to the setup display of the automatic adjustment of phase angle rotations Each time the UP or DN key is pressed the set value is alternated between ON and OFF Set the value to OFF and then press the SET key to confirm it The screen will be returned t...

Страница 83: ...enu see Subsection 5 2 5 In the state that the menu list of menu numbers 5 to 8 is displayed use the key to move the LCD indicator cursor to the menu number 8 of 8 ANGLE ROTATION and then press the SET key to select the menu of 8 ANGLE ROTATION 3 Verifying or changing the number of phase angle rotations see Subsection 5 2 13 Press the DN key once or the UP key twice to display N ROTATION On this s...

Страница 84: ...is used to exclude these signals to restrain the sudden output change See Section 10 3 4 Electric conductivity correction This function is used in the event that the electric conductivity of the matter to be measured haschanged substantially Since this does not usually become a real problem it does not need this function usually When using this function however it is necessary to separately prepar...

Страница 85: ... to the simulated output that is set beforehand 2 Selecting the parameter setting menu see Subsection 5 2 10 In the state that the menu list of menu numbers 5 to 8 is displayed use the key to move the LCD indicator cursor to the menu number 5 of 5 SET PARAMETERS and then press the SET key to select the menu of 5 SET PARAMETERS 3 Verifying or setting the moving average times see Subsection 5 2 10 P...

Страница 86: ...nal in place of the relevant signals Variations in excess of 0 5 TS which continue three times are judged to be signal variations resulting from actual density variations thus outputting the 3rd signal without modification Example 1 Operation for temporary and sudden signal variation Fig 10 3 1 Original Signal 0 0 0 5 1 0 1 5 2 0 2 5 3 0 1 2 3 4 5 6 7 8 9 10 Signal No Density signal TS Fig 10 3 2 ...

Страница 87: ...dth of 0 5 TS with regard to the respective immediately preceding signals are output without modification 10 3 3 Cautions in using the change rate limit factor 1 Setting the change rate limit width The value can be set within the range of 0 00 TS to 9 99 TS If the width is set to as little a value as the normally indicated deflection width restricted signals will increase and indications will vary...

Страница 88: ...etting press the SET key here to switch to the setup display of the change rate limit width and enter an appropriate value for the width Use the key to move to the digit and use the UP or DN key to alter the numeric value of the relevant digit When entering input is completed press the SET key to confirm it The screen will be returned to the immediately preceding one make sure that the value is co...

Страница 89: ...Measured during zero calibration and set in advance as a constant δ RF correction factor Ｇ RF data during measurement Ｇ０ Zero point RF data Measured during zero calibration and set in advance as a constant γ Electric conductivity correction factor degrees mS cm E Electric conductivity of measured object fluid mS cm E０ Zero water conductivity mS cm ß Ambient temperature correction factor degrees Ａ ...

Страница 90: ...ementing a electric conductivity correction separately prepare a electric conductivity meter and install it on a location where the conductivity can be measured correctly where the measurement object process is appropriate The standard values of electric conductivity correction factors shown in Table 10 4 1 are criteria It is necessary to use the linear relationship that exists between the conduct...

Страница 91: ...ting mode 2 2 Selecting the linearizer conductivity menu see Subsection 5 2 5 Press the UP key once to switch to the menu list display of the next menu numbers 9 to 11 Use the key to move the cursor of the LCD indicator to the menu number 9 of 9 LINEARIZ CNDUCTVTY and then press the SET key to select the menu of 9 LINEARIZ CNDUCTVTY 2 3 Setting the electric conductivity correction factor to 0 00 s...

Страница 92: ...is time let s assume that the conductivity and the measured density specified value are as follows respectively 1st measurement E1 1 mS cm M1 4 0 TS 2nd measurement E2 2 mS cm M2 4 2 TS From here it follows that DE 1 mS cm DM 0 2 TS and the conductivity correction factor is γ 0 2 0 056 1 3 57 5 To correct the electric conductivity correction factor by means of the conductivity meter s range In the...

Страница 93: ... 91 6 F 8 A 0 5 2 1 mode from the setting mode to resume the normal measurement ...

Страница 94: ...Simplified way of using the additive correction function The contents to be registered into the brand list are as follows Table 10 5 1 Brand List Sensitivity Note 2 Ratio of mixture Note 3 Component Note 1 Sign Setting range Set at shipping Sign Setting range Set at shipping Comp 0 s0 9 99 to 9 99 1 00 Comp 1 s1 9 99 to 9 99 0 00 R1 0 000 to 1 999 0 000 Comp 2 s2 9 99 to 9 99 0 00 R2 0 000 to 1 99...

Страница 95: ...ection to be made for getting Total Density of whole mixture including the additives TOTAL b a C R5 s5 R4 s4 R3 s3 R2 s2 R1 s1 s0 R5 R4 R3 R2 R1 1 Xb Δθ where Xb Density of the whole mixture s0 Sensitivity of the main component only s1 Sensitivity of additive 1 R1 Mixture ratio of additive 1 s2 Sensitivity of additive 2 R2 Mixture ratio of additive 2 s3 Sensitivity of additive 3 R3 Mixture ratio o...

Страница 96: ...ives R1 to R5 Perform zero point calibration Refer to 6 4 Zero Point Calibration Set the density multiplier to 1 000 Select ON for additives correction Select calculation mode for additives correction TOTAL or MAIN Select the brand list number that corresponds with the formula Parameter set Let the liquid mixture of selected brand flow Read the density indication M and simultaneously sample the su...

Страница 97: ...r DN key is pressed the set value alternates between OFF and ON With the value set to ON press the SET key to verify it The screen will be returned to the immediately preceding one make sure that the value is correctly reset 3 2 Selecting a density display see subsection 10 5 2 Continuing on from 3 1 press the UP key to switch to the display of Ad DISPLAY DENSITY In this menu decide whether the de...

Страница 98: ...n into account in calculation By using only a sensitivity for the whole mixture a mixture of pulp and additives the additives correction can be simplified as described below In this simplified correction a density multiplier sensitivity is obtained separately for each formula and entered into the list of formula When a formula is changed you need to select a new formula number to change the densit...

Страница 99: ... meter measured values with manual analysis values with a single density multiplier over a wide range of densities from low to high Suppose there is a curve relationship such as that shown in figure 10 6 1 between meter measured values using a density multiplier of 1 000 and manual analysis values when a certain substance is measured at varying degrees of density To make linealization the curve is...

Страница 100: ... Defaults are set as A 0 60 B 1 00 K1 1 00 K2 1 00 K3 1 00 Example of set values Fig 10 6 l A 0 6 B 1 0 K 1 0 8 0 6 1 33 K 2 0 4 0 4 1 00 K 3 0 3 0 5 0 6 10 6 2 Linearizer setting 1 Switching to the setting mode see Subsection 5 2 5 First of all press the ESC key of the converter several times normally once although this varies with the operation status to return to the initial menu display Next u...

Страница 101: ...ed press the SET key to confirm it The screen will be returned to the immediately preceding one make sure that the value is correctly reset Continue on to switch to the next setup menu display with the UP key And in accordance with the same procedure set density B and factors K1 K2 and K3 4 Returning to the measuring mode Press the ESC key twice to return to the initial menu screen and return to t...

Страница 102: ...VDC L Signals of no more than 2VDC 10 7 2 Setting the density multiplier switching by external signals 1 Switching to the setting mode see Subsection 5 2 5 First of all press the ESC key of the converter several times normally once although this varies with the operation status to return to the initial menu display Next use the key to move the LCD indicator cursor to the menu number 2 of 2 SETTING...

Страница 103: ... relevant digit When entering input is completed press the SET key to confirm it The screen will be returned to the immediately preceding one make sure that the value is correctly reset Continue on to switch to the next setup menu display with the UP key and set C3 and C4 in accordance with the same procedure When setting the density multiplier C1 refer to 6 5 Span Calibration 5 Returning to the m...

Страница 104: ...than those described above Note 4 For the range larger than 50 TS please contact Toshiba Repeatability In the case of 2 TS or more in full scale 2 FS In the case of less than 2 TS in full scale 4 TS Note The values are taken at measuring points above 5 of full scale using simulated reagent Note The full scale value is themaximum value on the upperside of the density measurement range Note In the c...

Страница 105: ...nutes and this is repeated 10 times for each direction of vibration totaling 90 minutes and no deterioration of performance nor damage shall be found Altitude Up to 2000m Mass Refer to the Attached Figure 1 Dimensions in Appendix Microwave transmission power Approx 10W 11 2 Detector Specifications Meter size 50mm 80mm 100mm 150mm 200mm 250mm 300mm Flange standard and maximum operating pressure Fla...

Страница 106: ... the density meter converter is in error or in maintenance setting change mode the contact will be open Communication signals Digital signals are sent superimposed on the 4 to 20mADC signal line based on the HART 1 protocol 1 HART Abbreviated from Highway Addressable Remote Transducer as the name of an industrial sensor communications protocol recommended by HCF HART Communication Foundation Note ...

Страница 107: ...imit a sudden output change by eliminating signals that cause sudden output changes in such cases as when a sudden density change occurs or air bubbles are mixed in the liquid to be measured You can set the condition of the rate of change limit using the rate of change width and how many times the change occurs count Additives correction function Capable of handling up to ten brands this function ...

Страница 108: ...uipment for DIN 16 Equipment for BS 10 A B Use Standard For PED for EU Note 1 A B C D Liquid contacting specification SCS14A cast Equivalent to 316SS pipe standard SCS14A cast Equivalent to 316SS pipe with Teflon PFA coating for sticky application SCS14A cast Equivalent to 316SS pipe for abrasive application Piping material HasteloyC Note 1 A B C D E Cable length dedicated cable between converter ...

Страница 109: ... 107 6 F 8 A 0 5 2 1 APPENDIX 1 Attached Figure1 Detector outline dimensions The center of gravity C Bolt pitch circle n Number of bole holes h Bolt diameter Unit mm Enlarged view of B ...

Страница 110: ... 80 8 22 4 Approx 44 200 290 320 342 9 28 4 1 5 298 5 M20 80 8 22 4 Approx 54 250 315 300 406 4 30 2 1 5 362 0 M22 90 12 25 5 Approx 68 ANSI150 300 340 360 482 6 31 8 1 5 431 8 M22 90 12 25 4 Approx 99 50 225 170 165 18 3 125 M16 60 4 18 Approx 22 80 225 200 200 20 3 160 M16 70 8 18 Approx 30 100 240 220 220 20 3 180 M16 70 8 18 Approx 31 150 260 270 285 22 3 240 M20 80 8 22 Approx 43 200 290 320 ...

Страница 111: ...oles Converter communication port Converter power supply cable port Contact signal I O 1 port Density signal output port Contact signal I O 2 port Rerserved Grounding terminal In the case of wall mounting In the case of 50A mounting Marine use steel pipe mounting U bolt Steel pipe 50A ...

Страница 112: ...eneric emission standard EN50081 2 1994 Radiated RF Emission EN55011 Class A Conducted RF Emission EN55011 Class A Limits for harmonic current emissions EN61000 3 2 Generic immunity standard EN50082 2 1995 Radiated RF Immunity ENV50140 Conducted RF Immunity ENV50141 Radiated RF Immunity ENV50204 Electrostatic Discharge Immunity EN61000 4 2 Electrical Fast Transient Immunity EN61000 4 4 Low voltage...

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