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Fuji Electric ZSS-7, Инструкция по эксплуатации

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Содержание ZSS-7

Страница 1: ......

Страница 2: ...t permission If it becomes necessary to modify the laser gas analyzer contact the manufacturer in advance This instruction manual shall be stored by the person who actually uses the laser gas analyzer...

Страница 3: ...light quantity 19 4 7 Angle adjustment 20 4 8 Piping system diagram 23 4 9 Assembly of receiver unit and transmitter unit 24 4 10 Wiring connection 25 4 11 Adjustment of light quantity 27 4 12 How to...

Страница 4: ...INZ TN7ZSS E iii 7 5 Replacement of O ring and packing 94 8 TROUBLESHOOTING 95 APPENDIX 1 SPECIFICATIONS FOR THE CROSS STACK LASER GAS ANALYZER 98 APPENDIX 2 CODE SYMBOLS 102...

Страница 5: ...malfunction of the unit 2 Ask professional services or your dealer for installation transportation reinstallation and associated piping and wiring work Improper installa tion may result in a falling...

Страница 6: ...gas or inert gas is used as calibration gas be sure that the position of the air ventilation or exhaust port is suitable Otherwise you may inhale exhaust gas Furthermore suffocation brain disorder ci...

Страница 7: ...rist watch finger ring or the like metallic accessories And never touch the instrument with a wet hand to avoid electric shocks 4 If the fuse is blown eliminate the cause and then replace it with the...

Страница 8: ...of light 1 2 Handling of product and operating precautions First read this instruction manual carefully and then make a plan for periodic inspection to perform appro priate maintenance management To...

Страница 9: ...oduct name Quantity 1 Control unit 1 1 Bolt 1 8 16 2 Receiver box 1 2 Nut 1 8 16 3 Transmitter box 1 3 Spring washer 1 8 16 4 Angle adjustment unit 2 4 Flat washer 1 8 16 5 Cable between receiver unit...

Страница 10: ...between receiver unit and transmitter unit Calibration gas cell Angle adjustment unit Standard accessories Hexagonal socket bolt Bolt Nut Spring washer Flat washer Bolt for angle fine adjustment Power...

Страница 11: ...10m 0 5 to 5m Note 1 Receiver box 120 180 100 2 Transmitter box 160 240 100 160 320 100 4 Flange of angle adjustment 6 Purging gas inlet with bell and spigot joint for 10 8 6 Purging gas inlet Receiv...

Страница 12: ...ntation air It is required to prevent lens conden sation and eliminate attached dust Prepare the pipe to connect to joint for tube 10 8 Use the air for air purge which does not contain oil or mist Oth...

Страница 13: ...the product you received 1 Input output terminal 1 AO 4 points External power supply terminal L N PE 1 2 3 Screw diameter M4 1 100 to 240V AC 50 60Hz L 2 100 to 240V AC 50 60Hz N 3 PE Earth terminal...

Страница 14: ...19 DO4 Beyond the upper lower limits Ch 1 31 DO10 20 DO4 32 DO10 21 DO5 33 DO11 Beyond the upper lower limits 22 DO5 34 DO11 Ch 2 23 DO6 35 DO12 24 DO6 36 DO12 Note 1 Unassigned terminals may be conne...

Страница 15: ...z L 2 100 to 240V AC 50 60Hz N 3 PE AO terminal 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Screw diameter Equivalent to M2 1 AO1 Ana...

Страница 16: ...34 DI1 15 DO4 Beyond the upper lower limits 35 DI2 Switching input for remote instantaneous value average value option 16 DO4 36 DI2 17 DO5 37 DI3 Remote hold option 18 DO5 38 DI3 19 DO6 39 DI4 20 DO6...

Страница 17: ...00 to 240V AC 50 60Hz N 3 PE AO terminal 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Screw diameter Equivalent to M3 1 AO1 Analog output 1 3 AO2 Analog outpu...

Страница 18: ...lue option 30 DI2 31 DI3 Remote hold option 32 DI3 Note 1 Provide relay output of LD failure LD temperature error or connection error as analyzer faulty Note 2 Do not provide relay output of high gas...

Страница 19: ...inside of the unit is free from ca ble chips and other foreign objects Otherwise it may cause fire accident or malfunction For lifting the analyzer be sure to wear protective gloves Bare hands may lea...

Страница 20: ...and CO O2 analyzer excluding for air purge version of which 4th digit of code symbol is T or V 10 Air purge flow rate 20L min or more depending on measured gas temperature velocity pressure moisture...

Страница 21: ...bient humidity 90 RH or less 3 Power supply Rated voltage 100V to 240V AC Rated frequency 50Hz 60Hz 4 Avoid a place that receives heavy vibration 5 A place which is clean around the analyzer 6 A place...

Страница 22: ...unting angle of companion flange should be adjusted accurately 3 Secure sufficient space for installation which permits easy operation 4 Scaffold will be required for both the receiver unit and the tr...

Страница 23: ...nstallation Fixtures list 1 Cable between receiver unit and control unit for calibration 2 Cable between receiver unit and transmitter unit for calibration 3 Calibration gas cell 4 Power supply drum o...

Страница 24: ...time about 90 minutes of warm up time is necessary after power ON to perform zero calibration P 43 to 46 7 Record the light quantity value when zero calibration is performed output value of the probe...

Страница 25: ...the manual analysis perform matching 17 Make a setting of item to be output in reference to 6 8 Selecting analog output 18 Make a analog output setting in reference to 6 9 Fine adjustment of analog ou...

Страница 26: ...ence light quantity value of light axis adjustment which is performed after the equipment is attached to a companion flange Factory set voltage is described on a nameplate which is labeled on covers...

Страница 27: ...to turn them slightly loosen the anchor nut first approx one tenth rotation Fig 4 6 3 When you fasten B flange When angle is determined after adjustment in 1 or 2 turn them in the direction opposite t...

Страница 28: ...p the fixing bolt tightly as the figure below the place where the bolt is screwed up in clines to the right and the laser beam points upward 3 If you loosen the fixing bolt as the figure below the pla...

Страница 29: ...o operate the angle adjustment unit 2 so that the pointer s light hits the center of the target 5 Then using the attached hexagonal socket screws to fix the laser pointer to the angle adjustment unit...

Страница 30: ...sure to set the R1 4 sealing plug ZZP ZSSTK738114P7 on the drain outlet of the mist separator Note 2 Diameters for CO O2 meter DI O A O A I Connector Cable length 200mm 7 Waterproof grand Internal dia...

Страница 31: ...r to Figure below of the re ceiver unit or the transmitter unit 2 Mount Receiver box or transmitter box on Angle adjustment unit so that the cable receptor is posi tioned down Be careful not to touch...

Страница 32: ...eiver unit and transmit ter unit Both ends of it are fitted with a female 16 pin connector waterproof type The connector has no polarity Fix the Cable between receiver unit and transmitter unit to the...

Страница 33: ...between receiver unit and control unit Both ends of it are fitted with a female 10 pin connector waterproof type The connector has no polarity Perform wiring in the way that the cable between receive...

Страница 34: ...eiver box similarly Do not loosen more than one bolt or loosen fixing bolt and nut widely in both cases of adjustment Light axis may deflect again 4 Move the transmitter unit and the receiver unit fro...

Страница 35: ...on in 2 4 4 If output is not as much as that measured at the time of calibration even if output is at its maximum on the transmitter side fix the box at the maximum output angle temporality and adjust...

Страница 36: ...e of retightening in the procedure in 4 11 Adjustment of light quantity When each retightening is finished perform fine adjustment by pressing with this bolt When you use the fine adjustment screw set...

Страница 37: ...inal The ground cable should be longer than the N Lline Flame resistance 600V 1 25mm2 16AWG or more Cable out diameter size B10mm or less AC cable M4 screw terminal L AC POWER N V SOURCE PE Note Use t...

Страница 38: ...a display error Power supply and output signal lines should be separated from each other As the wire is connected to each terminal use a solderless terminal for M4 As the solderless terminal is used f...

Страница 39: ...move the cursor change the selected item and decrease numeral value 2 Escape key Used to return to a previous screen or cancel the setting in midway 5 Side key Used to move the cursor and change numer...

Страница 40: ...rm Setting Span Calibration Display Output 1 AO Adjustment AI Adjustment Zero Span Coefficient Setting Parameter Setting Alarm Log AO Select Output Hold Password Analyzer Information Parameter Setting...

Страница 41: ...ment screen appears when the power is turned ON On the MEASURE screen measurable component alarm conversion measurable component and analog input are displayed beginning at the top When more than five...

Страница 42: ...9 Analog input Displays the analog input value which was set at the Analog Input screen Analog input to be displayed are Temperature Pressure Velocity O2 and H2O They are not displayed when selecting...

Страница 43: ...Output Hold Used for holding analog output 6 Parameter Setting Used for setting each parameter 7 Display Output setting Used for setting the measurement value to be displayed on the Meas urement scre...

Страница 44: ...The alarm of Low Light Transmission is activated after 1 minute continuation Though it takes 6 minutes from just after the power on 5 3 3 1 Name functions 1 Alarm occurrence date Displays the date whe...

Страница 45: ...arm Record Date Day Day Repair Alarm 04 01 11 23 Over H Limit 1 03 29 23 14 LD Temp Error 31 03 23 Select Delete HC HC 03 25 15 23 AI Under 28 13 28 Press 03 20 04 41 Low Air Purge Air 02 18 00 08 Hig...

Страница 46: ...00 08 High Gas Temp 20 09 44 Temp 01 12 11 22 Low Light Trans 27 08 11 HC All Delete 2006 04 01 12 00 00 Alarm Record Date Day Day Repair Alarm 04 01 11 23 Over H Limit 1 03 29 23 14 LD Temp Error 31...

Страница 47: ...00 08 High Gas Temp 20 09 44 Temp 01 12 11 22 Low Light Trans 27 08 11 HC All Delete 2006 04 01 12 00 00 Alarm Record Date Day Day Repair Alarm 04 01 11 23 Over H Limit 1 03 29 23 14 LD Temp Error 31...

Страница 48: ...in an envi ronment with high dust Light quantity is insufficient in an envi ronment with high water vapor Contamination of window and conden sation are caused by insufficient air purge Optical path is...

Страница 49: ...lower than the temperature fixed value set at the Analog Input screen Under L Limit 1 It is reported when Analog Output Alarm Record is set to Under L Limit 1 or Over H L Limit 1 on the Alarm Setting...

Страница 50: ...Teflon tube etc Several m 10 8 or more Joint Rc1 8 2 For calibration gas cell Flow meter 1 2L min or more Thermometer 1 4 to 20mA output for temperature correc tion required for range Hcl and NH3 Pre...

Страница 51: ...nit or the Cable between receiver unit and control unit is fixed and not usable provide them for calibration 5 Wiring should be performed as following figure Stack Transmitter box Receiver box Hexagon...

Страница 52: ...the control unit of Analog Input 8 Use a thick and short exhaust tube as much as possible 9 Refer to 6 7 1 Setting of 4 to 20mA DC Input in case of gas temperature for setting of Analog Input 10 When...

Страница 53: ...ength of calibration gas cell Standard cell length is 1000mm When the range is low con centration the length of calibration gas cell can be either 500mm or 200mm 8 See the Meas and make sure the indic...

Страница 54: ...creen 4 Point the to Component and press the key 5 Press the key or the key to select the Dust 6 Point the to Cell Length and press the key 7 Enter the optical path lengths of the stack to be measured...

Страница 55: ...avoid inhaling of the exhaust gas 4 When pipe connection and exhaust are completed allow the gas to flow 5 Flow of sampling gas should be 1 5L min Note Use a new regulator as much as possible Do not u...

Страница 56: ...tion intensity is equal to that of where the gas concentration is 100ppm and the measured optical path lengths is 1m 2m 50ppm Cable between receiver unit and transmitter unit for calibration Cable bet...

Страница 57: ...the Measurement screen and enter the value When the range is low concentration the value may be affected by gas temperature 12 Enter the value in Gas Press in the same manner of Gas Temp 13 See the va...

Страница 58: ...pre set value to when the Sampling Time pre set value elapses After the input value is set make sure to press Start key 2 Measuring the average dust concentration during the period from when Start key...

Страница 59: ...period in Sampling Time 2006 04 01 12 10 00 Span Cal Start Cal Finish 500 mm 1000 00 vol 0025 C kPa 00 00 100 00 vol Range 1 2006 09 01 Dust Component Cal Range Cell Length Cal Gas Value Meas Gas Tem...

Страница 60: ...key will be displayed If you do not press Finish key measument will be stoped automatically and the average concentration of specified sampling period starting from Start Time will be displayed 2006 0...

Страница 61: ...ed from manual analy sis to Cal Gas Value 2006 04 01 12 10 00 Span Cal Start Cal Finish 500 mm 1000 00 vol 0025 C kPa 00 00 100 00 vol Range 1 2006 09 01 Dust Component Cal Range Cell Length Cal Gas V...

Страница 62: ...art Cal Finish 500 mm 1000 00 vol 0025 C kPa 00 00 100 00 vol Range 1 2006 09 01 Dust Ave Dust Value Component Cal Range Cell Length Cal Gas Value Meas Gas Temp Gas Press LastCal Day Span Calibration...

Страница 63: ...lysis e g When H2O measuring time is at 9 00 to 9 30 it is assumed that average value of H2O concentra tion is in 30 minutes 3 Calculate that coefficient of span calibration is given by following form...

Страница 64: ...n press 2007 04 13 12 10 00 Menu Zero Calibration Alarm Log Display Output Pasword Parameter Setting Input Signal Span Calibration Alarm Setting AO Select Output Hold ENT 2007 04 13 12 10 00 Span Cal...

Страница 65: ...th and then press 2007 04 13 12 10 00 Span Cal Start Cal Finish mm vol 0015 C kPa 01 00 5 00 vol Range 1 2006 09 01 H2O 1500 7 500 Component Cal Range Cell Length Cal Gas Value Meas Gas Temp Gas Press...

Страница 66: ...tart Cal Finish mm vol C kPa 5 00 vol Range 1 2006 09 01 H2O 1500 7 50 0025 00 00 Component Cal Range Cell Length Cal Gas Value Meas Gas Temp Gas Press LastCal Day Span Calibration ENT 2007 04 13 12 1...

Страница 67: ...en tration Select OFF to invalidate Note When ON is selected High Low limit setting Analog Output Alarm Record cannot be set Point the to H Limit or L Limit by the key and the key and press the key EN...

Страница 68: ...et ting of the L Limit value Point the to H Limit to set the H limit val ue and point L Limit to set the L Limit value and then press the key ENT Alarm Setting H Limit ON Range1 15 ppm Range2 ppm L Li...

Страница 69: ...mit ppm ppm Hysteresis FS Analog Output Range2 H Limit Alarm Record 50 00 30 00 10 00 00 00 Range1 Range2 2006 04 01 12 00 00 Alarm Setting H Limit ON Range1 15 ppm Range2 ppm L Limit ppm ppm Hysteres...

Страница 70: ...e2 Note When OFF is set to the ON OFF setting of the alarm value Analog Output Alarm Record cannot be set Select ON again The alarm output which is H Limit L Limit or H L Limit cannot be per formed fo...

Страница 71: ...t possible chattering of the alarm output near the alarm setting value Point the to Hysteresis by the key or the key and press the key ENT ENT Alarm Setting H Limit ON Range1 15 ppm Range2 ppm L Limit...

Страница 72: ...n the value exceeds the H Limit After alarm output is turned ON and output is reduced by hysteresis set from H Limit the alarm is turned OFF ENT ENT Alarm Setting H Limit ON Range1 15 ppm Range2 ppm L...

Страница 73: ...measurable component to hold output by the key or the key and press the key Select either Last Meas or Pre set by the key or the key Press the key to validate the setting ENT 2006 04 01 12 00 00 HC 20...

Страница 74: ...the value corre sponding to 2ppm is output regardless of the measurement value O2 Conversion Hold Last Meas Holds the measurement value for which Last Meas is determined by the key and the value calc...

Страница 75: ...nput DI3 terminal option The value to hold output is Last Meas only Apply rectangular waveform pulse width 2 0 sec or more to a remote hold input terminal to hold analog output Applying it again cance...

Страница 76: ...of stack lengths Enter the lengths of the stack where the receiver unit and the transmitter unit are attached It does not include the lengths of companion flange This value has a direct effect on the...

Страница 77: ...mm 01000 HC Min 01 12 OFF ON 09 07 01 01 00 00 00 Min Path lengths Average Period cv O2 Reset Avg Gas Key Lock Disp OFF Date Time Parameter Setting 2006 04 01 12 00 00 mm HC Min 01 12 OFF ON 09 07 01...

Страница 78: ...60 minutes When it is less than the moving average time output the moving av erage value during that period Change the setting to reset the average value The value is reset when pressing the key Aver...

Страница 79: ...measurable component to be reset by the or the key When there is only one component the component is fixed Press the key to reset the average value 2006 04 01 12 00 00 mm 01000 HC Min 01 12 OFF ON 09...

Страница 80: ...Setting can not be displayed even if the item is selected and the key is pressed on the Menu screen Any items except Key Lock cannot be vali dated even if the item is selected and the key is pressed o...

Страница 81: ...o ON by the or the key and press the key Change the numeric value by the key or the key and move the digits by the key Press the key to validate the set input value 2006 04 01 12 00 00 mm 01000 HC Min...

Страница 82: ...verage value for each measurable component The setting is reflected on the display on the Measurement screen O2 conversion value can be arbitrarily selected even if the previous measurement value is s...

Страница 83: ...the moisture meter is provided input its output signal 4 to 20mA DC output to the analog input of the control unit and set the range referring to 6 7 1 Setting of 4 to 20mA DC Input in case of gas tem...

Страница 84: ...OSetting Range1 0 50 0 ppm Range2 0 1000ppm Range Control Remote Inst Inst Dry cv 2006 04 01 12 00 00 Gas HC Avg Inst Wet Wet Dry Range1 0 50 0 ppm Range2 0 1000ppm Display AOSetting Range1 0 50 0 ppm...

Страница 85: ...setting fixed by the key does not return to the previous setting even if the cursor is moved by the key 5 ENT 5 Display AOSetting Range1 0 50 0 ppm Range2 0 1000ppm Range Control Remote Inst Avg Dry...

Страница 86: ...ting of 4 to 20mA DC Input in case of gas tempera ture The sensor signal of the thermometer 4 to 20mA output is connected to Ch1 or Ch2 of the AI terminal of the control unit If an AI expansion board...

Страница 87: ...ol 20 00 00 00 21 00 vol 050 0 000 0 100 0 Gas Flow m s 02 00 00 00 20 00 Air Purge kPa No 000 0 100 0 005 0 Alarm 4mA 20mA Under 2006 04 01 12 00 00 Fixed Fixed Fixed Fixed ENT ENT Analog Input GasPr...

Страница 88: ...from the set value of input signal for the oxygen O2 analyzer The calculation formula is as follow Conversion C 21 On 21 Os Cs C Converted concentration Os Measured O2 concentration On Standard O2 con...

Страница 89: ...ress the key to validate the set input value Analog Input GasPress kPa Fixed Fixed 4mA 20mA 00 00 00 00 10 00 Gas Temp 0027 0000 0500 vol 20 00 00 00 21 00 vol 050 0 000 0 100 0 Gas Flow m s 02 00 00...

Страница 90: ...ut Select Air Purge by the key or the key Press the key to move the cursor to Channel setting Select the channel CH1 or CH2 connected to AI terminal by the key or the key and press the key Analog Inpu...

Страница 91: ...Fixed Fixed 4mA 20mA 00 00 00 00 10 00 Gas Temp 0027 0000 0500 vol 20 00 00 00 21 00 vol 020 0 000 0 100 0 Gas Flow m s 02 00 00 00 20 00 Air Purge kPa 000 0 100 0 005 0 Alarm 4mA 20mA Under 2006 04 0...

Страница 92: ...ted When there is O2 conversion output O2 Conversion is also selectable Select the analog terminal to be output by the or the key Press the key to move the cursor to Output Component setting Select th...

Страница 93: ...2 00 00 mm 01000 HC Min 01 OFF ON 09 06 04 01 00 00 00 Min Path lengths Average Period Reset Avg Gas Key Lock Disp OFF Date Time Parameter Setting 2006 04 01 12 00 00 mm 01000 HC Min 01 OFF ON 09 Min...

Страница 94: ...the key to move the cursor to Password Press the key to display the Factory Menu screen Point the cursor to Analog Output Tuning by the key or the key and press the key 2006 04 01 12 00 00 Menu Zero C...

Страница 95: ...the Span column change the item of Ana log fine adjustment to Span output and make adjustment in the same way as Span 2006 04 01 12 00 00 FACTORY MENU Output Analog Output 1 Analog Output 2 Analog Out...

Страница 96: ...een the receiver unit and the control unit If the power is turned on in the state above Connection Error alarm is generated and Analyzer faulty alarm is then generated After you confirm the alarm outp...

Страница 97: ...s not remain Transmitter unit Receiver unit Atmospheric release N2 cylinder Standard gas cylinder SV3 SV1 SV2 Control unit Check cell Laser gas analyzer with check cell ZSS Sequencer Remote check inpu...

Страница 98: ...een the concentration output at this time and 50ppm T Time Concentration 0 You can not check the zero point while the gas to be measured remains in the stack Concentration output In order to check whe...

Страница 99: ...which was obtained by 6 11 2 Concentration of the gas which is fed to the check cell and gas concentration fluctuation to the check cell 4 After the indication value is stabled obtain the measured va...

Страница 100: ...ent Only qualified personnel who have been trained by Fuji Electric should perform maintenance works Do not extend the cycle of replacement parts Note that any troubles resulting from failure to repla...

Страница 101: ...following figure Replace the O ring and silicon packing A annually Note When replacing packing be careful not to touch the lenses of the transmitter box and the receiver box Note Use a dry cloth micr...

Страница 102: ...Is the device installed in a place where frequency fluctuates widely between 20 and 40Hz Yes Contact the manufacturer Counter measures should be taken such as altering the resonance frequency by chang...

Страница 103: ...igh as the alarm setting or is it purged No Increase the air purge pressure and perform air purge 10 Not operating even with the power turned on 1 Is the input voltage lower than the voltage rating Ye...

Страница 104: ...f ZSS are contained difference is made in concentration 12 The measured value is over the range 1 Is the measuring gas is a concentration value which is over the range Yes Check it conducting manual a...

Страница 105: ...temperature 10 vol 50 vol 1200 C or less 2 laser 2 componen t analyzer CO O2 Air purge CO 200 ppm 2 vol 400 to 1200 C Air O2 25 vol 100 vol CO O2 High temperature CO 200 ppm 2 vol 1200 C or less N2 O...

Страница 106: ...ess 0 to 1V DC 100k or more Output measurement value and O2 correspondingvalue Aver age value and instantaneous value are switchable by the settings 20 Analog input 4 to 20mA DC 6 Measured gas pressur...

Страница 107: ...alue is started from the initial state by applying rectangular wave voltage pulse width 2 sec or more to the input terminal of the average value resetting Output is reset by in putting and restarted b...

Страница 108: ...or the environment where dust 1g Nm3 or more or water 25vol or more exists Prevention of dust deposition or dew condensation due to increase in air purge flow rate is required 8 Dust Standard 5 g Nm3...

Страница 109: ...102 INZ TN7ZSS E APPENDIX 2 CODE SYMBOLS...

Страница 110: ...Receiver unit Transmitter unit Control unit Cable between receiver unit and transmitter unit specified length Cable between receiver unit and control unit specified length Standard accessory set instr...

Страница 111: ...H8049P1 9 R1 4 stopper plug for mist separator 1 ZZP ZSSTK738114P7 10 Flow meter 20 to 100L min 4 1 ZZP ZSSTK7N4624P1 Flow meter 4 to 50L min 4 1 ZZP ZSSTK7N4624P2 Flow meter 30 to 300L min 4 1 ZZP ZS...

Страница 112: ...Transmitter unit 5 IR card Invisible light Laser beam visible Transmitter unit Receiver unit Atmospheric release N2 cylinder Standard gas cylinder SV3 SV1 SV2 Control unit 6 Check cell Laser gas anal...

Страница 113: ...g system diagram Box Filter regulator Drain outlet 10 piping not supplied by us Receiver purge outlet Transmitter purge outlet Mist separator Flow meter Parts for air purge Pipe with external diameter...

Страница 114: ...INZ TN7ZSS E 107 13 BNC cable for optical axis adjustment...

Страница 115: ...lied Be sure to prepare instrument air or N2 gas Instrument air should not contain oil and mist If mixed air such as oil and mist contained is used contamination occurs in the pipe of flow meter and p...

Страница 116: ......

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