Fuji Electric ZSS-8 Series Instruction Manual
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Fuji Electric ZSS-8 Series Instruction Manual

Fuji Electric ZSS-8 Series Instruction Manual

Cross stack laser gas analyzer
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  • Page 2: Preface

    PREFACE We thank you very much for purchasing Fuji Electric’s cross-stack laser gas analyzer (Type: ZSS).  First read this instruction manual carefully until an adequate understanding is acquired. Then proceed to installation, operation and maintenance of the laser gas analyzer. Improper handling may result in an accident or a failure.

  • Page 3: Table Of Contents

    CONTENTS PREFACE ................................i CONTENTS ..............................ii SAFETY INFORMATION ..........................iv WARRANTY AND MAINTENANCE ......................vii 1. DESCRIPTION ............................1 1.1 Introduction .............................. 1 1.2 Compliance .............................. 1 2. CHECKING DELIVERED ITEMS ......................2 3. NAME AND EXPLANATION OF EACH PART ..................4 3.1 Overall composition ..........................
  • Page 4 7.5 Replacement of O-ring and packing ....................... 93 8. TROUBLESHOOTING ..........................94 APPENDIX 1 SPECIFICATIONS ........................ 97 APPENDIX 2 CODE SYMBOLS ....................... 101 - iii - INZ-TN8ZSS-E...

  • Page 5: Safety Information

    SAFETY INFORMATION First of all, read this “Safety information” carefully, and then use the analyzer in the correct way. The following items are important for safe operation and must be fully observed. These safety precautions are ranked in 2 levels; “DANGER” and “CAUTION.” ANGER If operation is incorrect, a dangerous situation may occur, resulting in death or serious injury.
  • Page 6 Wiring AUTION (1) Be sure to connect a ground wire securely to the specified place by per- forming class D grounding work. Otherwise electric shock or malfunc- tion may result. (2) If the power supply voltage exceeds the rating, electric shock or damage to the instrument may result.
  • Page 7 AUTION If the cause of any fault cannot be determined despite reference to the in- struction manual, be sure to contact your dealer or Fuji Electric’s technician in charge of adjustment. If the instrument is disassembled carelessly, you may get an electric shock or injury.

  • Page 8: Warranty And Maintenance

    4-2. Scope of warranty 1) If any failure or malfunction attributable to Fuji Electric occurs in the period of warranty, we shall pro- vide the product after repairing or replacing the faulty part for free of charge at the place of purchase or delivery.
  • Page 9 2) Regardless of the time period of the occurrence, Fuji Electric is not liable for the damage caused by the factors Fuji Electric is not responsible for, opportunity loss of the purchaser caused by malfunction of Fu- ji Electric product, passive damages, damage caused due to special situations regardless of whether it was foreseeable or not, and secondary damage, accident compensation, damage to products that were not manufactured by Fuji Electric, and compensation towards other operations.
  • Page 10 10 years. Do not use capaci- tors beyond its lifetime. Otherwise, electrolyte leakage or depletion may cause odor, smoke, or fire. Please contact Fuji Electric or its service providers when an overhaul is required. (2) LCD ...

  • Page 11: Description

    1. DESCRIPTION 1.1 Introduction Cross-stack laser gas analyzer (ZSS) provides continuous measurement of HCl in flue gas incineration, NH concentration of denitration equipment and heat treat furnace, and O , CO, and CO for combustion control within a short response time. The cross-stack configuration eliminates the need for transfer of the preparation measurement gas to the analyzer for proper measurement.

  • Page 12: Checking Delivered Items

    2. CHECKING DELIVERED ITEMS Upon receiving the recorder unit, check if the correct quantity of the accessories are supplied. Separately supplied document are given first priority. When you have purchased or want to purchase spare parts for 1-year operation or a list of calibration/installation fixtures, refer to “APPENDIX 2”at the end of this Manual.
  • Page 13 - 3 - INZ-TN8ZSS-E...

  • Page 14: Name And Explanation Of Each Part

    3. NAME AND EXPLANATION OF EACH PART 3.1 Overall composition The analyzer consists of 3 units; “Transmitter unit” to transmit the laser, “Receiver unit” to receive light, and “Control unit” to display and output signals. - 4 - INZ-TN8ZSS-E...
  • Page 15 Name Description Receiver box Accommodates a photodiode that receives the laser light, PCB, and others. Transmitter box Accommodates the laser element, a Peltier device that controls the laser temperature, PCB, and others. Probe for adjusting the re- A probe (BNC socket) used to check the received light intensity, in a ceived light intensity form of voltage value, based on which the optical axis is adjusted.

  • Page 16: Wiring Diagram

    3.2 Wiring diagram Input / output terminal - 6 - INZ-TN8ZSS-E...
  • Page 17 - 7 - INZ-TN8ZSS-E...

  • Page 18: Installation

    4. INSTALLATION ANGER This analyzer is not explosion-proof. Do not use it in an atmosphere of ex- plosive gas. Otherwise, it can result in serious accidents such as explosion, fire, etc. AUTION  The analyzer should be installed in a place conforming with the installa- tion requirements noted in this instruction manual.

  • Page 19: Requirements

    4.1 Requirements 4.1.1 Installation conditions of receiver unit and transmitter unit 4.1.1 Receiver unit and transmitter unit Select a location that meets the following conditions. Ambient temperature : A place where the temperature is within -20 to 55°C and there is no sudden temperature change.
  • Page 20 4.1.2 Control unit Select a location that meets the following conditions. Ambient temperature : –5 to 45°C Ambient humidity : 90 % RH or less Power supply : Rated voltage : 100V to 240V AC Rated frequency : 50Hz/60Hz A place where the instrument receives no vibration A place where the ambient air is clean A place where has enough space for maintenance work or inspection A place where induced electrical noise, such as large electrical current or spark, is low...

  • Page 21: Mounting Dimensions

    4.2 Mounting dimensions Keep purging the analyzer once you install it on a stack. Otherwise, the contamination of optical surface may result in the analyzer failure. Fig. 4－1 *1: When the flue gas contains a large amount of dust, ensure the minimum length of 50 mm. *2: When the flue gas temperature is high (400°C or more), ensure the minimum distance of 400 mm.

  • Page 22: Mounting Range Of Companion Flange

    4.3 Mounting range of companion flange Mount the companion flange so that it satisfies the conditions of the following figure (Fig. 4 － 2). If the con- ditions below are not satisfied, light cannot be received even if the light axis adjustment is performed by the angle adjustment unit.

  • Page 23: Setup Procedure

    4.5 Setup procedure Page Installation site check Check that the transmitter unit, the receiving unit, and the control unit are installed in a location that meets the requirements. (“4. INSTALLATION”) ↓ P.11 Installation dimension check Check that the transmitter unit and the receiver unit are installed in a manner that meets the dimension requirements.
  • Page 24 (12) Cable connection P.21, 22 Connect the cable between the transmitter unit and the receiver unit, and the cable be- tween the receiver unit and the control unit. (“4.10 Cable connection”) ↓ (13) Turning on the control unit ↓ (14) Light intensity adjustment Adjust the light intensity to as close to the value on nameplate as possible.

  • Page 25: Received Light Intensity Check

    4.6 Received light intensity check (1) Remove the cap from the probe (BNC socket) of the receiver unit, and connect the probe and the digital voltmeter using the BNC cable for light axis adjustment. (2) Read the DC voltage value. The receiver unit emits a voltage about 3 V DC when the light transmit- tance is 100%.

  • Page 26: Angle Adjustment

    4.7 Angle adjustment Fig. 4－4 4.7.1 How to use the angle adjustment unit 1 (1) When you tighten the flange B Turn the fixing bolt and the anchor nut clockwise at the same time. If it is difficult to turn them, slightly loosen the anchor nut first. (approx.
  • Page 27 4.7.2 How to use the angle adjustment unit 2 This section describes movement of the optical axis by operating the angle adjustment unit. Example) When you adjust the fixing bolt and the anchor nut shown in the figure below, encircled with a solid line (1) If the flange A and the flange B are parallel, the laser beam points horizontal direction.
  • Page 28 4.7.3 Adjustment procedure 4.7.3.1 When an optical axis adjusting tool (laser pointer) is used AUTION Do not watch the laser pointer beam directly with the optical measuring device. Otherwise, it may cause serious damage to your eyes. (1) When the flanges A and B shown in Fig. 4 － 4 are extremely tilted, adjust them in a flat place before mounting them to the stack so that they are parallel to each other.

  • Page 29: Piping System Diagram

    4.8 Piping system diagram Fig. 4－9 - 19 - INZ-TN8ZSS-E...

  • Page 30: Installation Of The Transmitter Box And The Receiver Box

    4.9 Installation of the transmitter box and the receiver box (1) Prepare “Receiver box or transmitter box” and “Hexagonal socket bolt” as shown in the following fig- ure (Fig. 4 － 10). Check that the O-ring is mounted on near the lens (refer to Figure below) of the re- ceiver unit or the transmitter unit (2) Mount “Receiver box or transmitter box”...

  • Page 31: Cable Connection

    4.10 Cable connection 4.10.1 Between transmitter unit and receiver unit The receiver unit and the transmitter unit are connected with the “Cable between receiver 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 stack, etc.
  • Page 32 4.10.2 Between receiver unit and control unit The receiver unit and the control unit are connected with the “Cable between receiver unit and control unit”. Both ends of it are fitted with a male 10-pin connector (waterproof type). The connector has no polarity. Perform wiring in the way that the cable between receiver unit and control unit is not pulled.

  • Page 33: Light Intensity Adjustment

    4.11 Light intensity adjustment Note that if you loosen multiple bolts and nuts at a time, it takes considerable time to re-adjust the angle. 4.11.1 When an optional optical axis adjusting tool (laser pointer) is used (1) Connect the digital voltmeter using the BNC cable, referring to “4.6 Received light ”. (2) The reference light intensity is based on the output in zero calibration or voltage value of light intensity which is described in a nameplate.
  • Page 34 4.11.2 When an optional optical axis adjusting tool (laser pointer) is not used (1) Connect the digital voltmeter using the BNC cable, referring to “4.6 Received light ”. (2) The reference light intensity is based on the output in zero calibration or voltage value of light intensity which is described in a nameplate.

  • Page 35: How To Use The Bolt For Angle Fine Adjustment

    4.12 How to use the bolt for angle fine adjustment (standard accessory) This bolt is used for adjustment when the light path length in the stack is long and when the light intensity misses too much at the time of retightening in the procedure in “4.11 Light intensity adjustment”. When each retightening is finished, perform fine adjustment by pressing with this bolt.

  • Page 36: Connecting To Control Unit

    4.13 Connecting to control unit Do not supply the power until all the wiring work is completed. To ensure the watertight property of the cable glands, use the cables that have an outer diameter from 6 mm to 10 mm. 4.13.1 AC power connection AC power connecting terminal is positioned at the lower left of the control unit (see Fig.
  • Page 37 When noise source is in the vicinity Avoid installing this analyzer near an electrical ap- paratus which produces power source noise. (Such as high frequency furnace, electric welder, etc.) If the analyzer must be used near such equipment, a separate power line should be used for avoiding noise.
  • Page 38 20 mA DC or 1–5 V DC analog signal is emitted. For connection of the signal cable, use an insulated con- verter (WS2DC Series, manufactured by Fuji Electric Technica Co., Ltd. or equivalent) to supress the influ- ences by noise.
  • Page 39 (2) Open the control panel, and you can see the terminal box on the right side of the printed board. Fig. 4－18 - 29 - INZ-TN8ZSS-E...
  • Page 40 (3) Connect the cables as shown in the figure 4-19. Cable cross-sectional area shall be between 0.2 mm (AWG24) and 0.12 mm (AWG26). Terminate both ends of a cable (between ② and ③ ) by using 100Ω (≥ 1/2W) resistors. Put the terminal cover back on after you finished wiring.

  • Page 41: Operation Panel And Screen

    5. OPERATION PANEL AND SCREEN 5.1 Operation panel Name Functions Name Functions (1) Mode key Used to display the menu (4) Down key Used to move the cursor, mode. change the selected item and decrease numeral value. (2) Escape key Used to return to a previous (5) Side key Used to move the cursor and...

  • Page 42: Screen Configuration

    5.2 Screen configuration - 32 - INZ-TN8ZSS-E...

  • Page 43: Outline Of Screen

    5.3 Outline of screen 5.3.1 “Measurement” screen (appears when the power is turned ON) On the measurement screen, the display shows the components being measured, alarm, refer- ence-O -corrected concentration, and analog input. If there are more than four items to be displayed, use UP, DOWN or ENT to move up, down, or across the screen.
  • Page 44 5.3.1.1 Name (functions) (1) Measured component ······ Displays the gas component to be measured in molecular formula. (2) Concentration value ······ Displays the measured concentration. The value is reversed during the value is held and during automatic calibration of laser waveform is in operation.
  • Page 45 5.3.2 “Menu” screen Press the key while the “Measurement” screen is displayed, and the “Menu” screen appears. (It does not appear when pressing the key while other screen is displayed. In that case, Press the key to display the “Measurement” screen, and then press the key.) 5.3.2.1 Name (functions) Zero Calibration ············...
  • Page 46 5.3.3 “Alarm Record” screen The screen displays the alarm record occurred in the past. The ten newest errors are logged. The oldest error will be deleted one by one every time a new alarm occurs. New errors are displayed from the top on the screen.
  • Page 47 5.3.3.2 Basic Operation  Moving the cursor 2018-04-01 Alarm Record 12:00:00 Date Alarm Day Repair Over H - Limit 04 ／ 01 11:23 HC ℓ LD Temp. Error 03 ／ 29 23:14 03:23 HC ℓ Press. AI Under 03 ／ 25 15:23 13:28 03 ／...
  • Page 48  Selected alarm deletion 2018-04-01 Alarm Record 12:00:00 Date Alarm Day Repair Over H -Limit 04 ／ 01 11:23 HC ℓ LD Temp. Error 03 ／ 29 23:14 03:23 HC ℓ Press. AI Under 03 ／ 25 15:23 13:28 Low Air Purge 03 ／...
  • Page 49  All alarms deletion 2018-04-01 Alarm Record 12:00:00 Date Alarm Day Repair Over H -Limit 04 ／ 01 11:23 HC ℓ LD Temp. Error 03 ／ 29 23:14 03:23 HC ℓ Press. AI Under 03 ／ 25 15:23 13:28 Low Air Purge 03 ／...
  • Page 50 5.3.3.3 Alarm types All the alarms except for “Connection Error” which indicates communication failure between the receiver unit and the control unit will be activated after at least five minutes from the power on. The alarm of “Low Light Transmission” is is triggered when the low light transmission status is continued for one minute, which means that it takes six minutes after start-up of the analyzer.
  • Page 51 Alarm display Alarm contents Probable causes AI Under The analog input that the control • AI terminal is not connected to the ex- unit received is out of the range ternal input device when channel setting which is set in the “Analog Input” is set on the “Analog Input”...

  • Page 52: Calibration And Setting

    6. CALIBRATION AND SETTING 6.1 Zero calibration Select “Zero Calibration” from the “Menu” screen and press the key. 6.1.1 Preparation AUTION  Do not detach the transmitter unit during calibration while the pow- er is supplied. If you turn the transmitter unit towards a person, the laser beam can damage his/her cornea.
  • Page 53 (3) Connect the transmitter box and the receiver box to the calibration gas cell by using the hexagon socket head bolts. *If the cable between the receiver unit and the transmitter unit or/and the cable between the receiver unit and the control unit cannot be used for calibration because they are fixed, prepare the substitute cables for calibration.
  • Page 54 (5) Attach two Rc1/4″ pipe fittings to the inlet and outlet of the calibration gas cell. Connect the tube from the standard gas (N ) cylinder to the inlet side. (6) Connect the exhaust gas tube to the outlet side. For exhaust gas line, use a tube as large and short as possible.
  • Page 55 6.1.2 Zero calibration (1) If the power is OFF, turn it ON. (2) Check if the flow of N gas is approximately 1.5 to 2.0 L/min. (3) Display the “Zero Calibration” screen. (4) Point the to “Component”, and press the key.

  • Page 56: Span Calibration

    6.2 Span calibration Select the “Span Calibration” from the “Menu” screen and press the key. Note that the span calibration described in this subsection is not available for H O analyzer because the H analyzer has no span calibration gas cylinder. 6.2.1 Preparation ANGER If toxic fume, corrosive gas or inert gas is used as calibration gas, be...
  • Page 57 • About Span Calibration - 47 - INZ-TN8ZSS-E...
  • Page 58 6.2.2 Span calibration (1) If the power is OFF, turn it ON. (2) Check if the flow of span gas is approximately 1.5 to 2.0 L/min. (3) Display the “Span Calibration” screen. (4) Point the to “Component”, and press the key.
  • Page 59 6.2.3 H O calibration by matching with values obtained by manual analysis This method does not use the calibration cell. Calibration is carried out without uninstalling the receiver unit and the transmitter unit. 6.2.3.1 Required data (1) H O concentration measured by manual analysis (2) H O concentration measured by the laser gas analyzer at the same time as the manual analysis 6.2.3.2 Preparation for span calibration...
  • Page 60 6.2.3.3 Procedure of span calibration In [Menu] screen, point the cursor to [span calibration] with and then press Point the cursor to [Component] with and then press the key to reverse out the cell. Select the [H O] with and then press Point the cursor to [Cell Length] with and then press the...
  • Page 61 Point the cursor to [Cal Gas Value] with and then press the key to reverse out the cell. By using the keys, enter the cal- ibration gas concentration calculated in 6.2.3.2, and then click the key. Point the cursor to [Gas Temp] with and then press the key to reverse out the cell.
  • Page 62 Point the cursor to [Span Cal Start] with and then press Calibration will be completed in 30 seconds and automatically cursor will move to [Cal Finish]. - 52 - INZ-TN8ZSS-E...

  • Page 63: Alarm Setting

    6.3 Alarm setting Select “Alarm Setting” from the “Menu” screen, and press the key. On the “Alarm Setting Gas” screen, select a component by moving the with the key and the key. Press the key. “Alarm Setting” screen is displayed. 6.3.1 Alarm value ON/OFF ON validates the High/Low limit alarm output, alarm display, alarm record for the measured concentration.
  • Page 64 Select “ON” or “OFF” by the key or the key, and press the key. When you press the key, the cursor returns to the initial position. 6.3.2 Setting of alarm value Make a setting of the High/Low limit alarm for the measured concentration. To change the alarm setting, set the Alarm ON/OFF setting to ON, and then change the numeric value.
  • Page 65 Select “ON” by the key or the key, and press the key. Press the key. Change the numeric value by the key or key, and press the key. Click the key, and the returns to the initial position. Note Set the value so that H-Limit is larger than L-Limit, and that (H-Limit – L-Limit) is larger than hysteresis width.
  • Page 66 6.3.3 Analog output / alarm record Set the recording range of the external alarm output such as analog output or the alarm record. Setting range can be selected from “H-Limit”, “L-Limit” and “H/L Limit”. Note When “OFF” is set to the ON/OFF setting of the alarm value, “Analog Output / Alarm Record” cannot be set.
  • Page 67 6.3.4 Hysteresis setting Set the hysteresis to prevent possible chattering of the alarm output near the alarm setting value. Point the to “Hysteresis” by the key or key, and press the key. Change the numeric value by the key or key, and move the digit by the key.
  • Page 68 Hysteresis mode (in case of H-Limit) Alarm output is turned ON when the value exceeds the H-Limit. The alarm goes off when the measured val- ue has gone below the hysteresis. - 58 - INZ-TN8ZSS-E...
  • Page 69 6.3.5 Gas temperature alarm When the gas temperature is out of the range between the higher limit and the lower limit, the analyzer emits the “High Gas Temp” alarm. Note Set the limit values so that the upper limit is larger than the lower limit. By using the keys, move the cursor to the “Gas Temp upper limit alarm”...

  • Page 70: Output Hold

    6.4 Output hold Before a maintenance work, be sure to carry out the setting explained in this subsection to hold the analog output. Select “Output Hold” from the “Menu” screen, and press the key. 6.4.1 Output hold Set output hold to “Last Meas.” or “Pre-set” to hold analog output. (Indication value on the “Measurement” screen is not held.
  • Page 71 2018-04-01 Output Hold 12:00:00 When “Last Meas.” is selected, cursor returns to the starting position. ＨＣℓ Pre-set When “Pre-set” is selected, numeric value is highlighted. Change the numeric value by the key or the key, and move the digit to the right by the key.
  • Page 72 6.4.2 Remote hold (DI3 terminal) You can remotely hold the output by using the external contact output (DI3 terminal, option). The value to be hold is “Last Meas” only. By applying a voltage (pulse width 2.0 seconds or more) to the remote hold input terminal, you can hold the analog output.

  • Page 73: Parameter Setting

    6.5 Parameter setting On the “Parameter Setting” screen, “Path length” related to measurement value and “Average Period” related to average value output are set. Items to be set are as follows. Setting items Path length : Enter the optical path lengths. Purge length : Enter the total length of the purge length A and the purge length B shown in the figure in 6.5.1.
  • Page 74 Point the to “Path lengths” by the and the key, and press the key. Change the numeric value by the key or key, and move the digits by the key. Press the key to validate the set input value. - 64 - INZ-TN8ZSS-E...
  • Page 75 6.5.2 Purge length The “purge length” setting is required only for the O analyzer for combustion control. In other cases, you do not have to edit this parameter. Setting range: 100–15000 mm If you ordered the “blast purge” option, you have to set the “blast purge” column as well. Move the cursor to “Purge Length”...
  • Page 76 - 66 - INZ-TN8ZSS-E...
  • Page 77 6.5.3 Moving average time This parameter is required if you set the indication and the output to the average in “6.6.1 Instantane- ous/average value”. Setting range is from 1 to 60 minutes. Up to the time you set, the analyzer emit the av- erage value at the time.
  • Page 78 Move the cursor to the “Avg. Period” by using keys, and then press the key. Change the value by using the keys, and move the digit by using the key. Press key to set the value, and the cursor will move to the next column, “Mode 1”.
  • Page 79 6.5.4 O conversion This parameter allows you to set the reference O concentration value used for converting the measured val- ues. For the detail of the O conversion, refer to “5.3.1.2 O conversion concentration value”. Move the cursor to the “cv O ”...
  • Page 80 6.5.5 Average value reset When the indication value and output value are set to the average value in the “6.6.1 Instantaneous/average value”, resetting the average value works on both the measured value and the O converted value. When the indication value and the output value are set to the instantaneous value, nothing changes even if the average value is reset.
  • Page 81 Remote average value reset (DI1 terminal) Apply voltage to the input terminal of remote average value reset (DI1 terminal, option) to reset the aver- age value. 12 to 24 VDC/ 5 to 20 mA Remote resetting signal Starts averaging Reset is kept during short-circuit. When switching the action from short-circuiting to opening, average value action starts.
  • Page 82 6.5.7 Backlight timeout This parameter allows you to set the time until the backlight automatically turns off after the display returns to the measurement screen. The setting range is from 1 to 60 minutes. The maximum time that the backlight can last is approximately 58000 hours.
  • Page 83 6.5.8 Time and date Set the time and date every three months because the time error occurs depending on the ambient tempera- ture. Move the cursor to the “Date/Time” by using the keys, and then press the key. Change the value by using the keys, and move the digit by using the key.

  • Page 84: Display/Ao Setting

    6.6 Display/AO setting Make a setting of “Inst./Avg.” or “Wet/Dry” of the measurement value displayed on the “Measurement” screen. Setting items “Inst./Avg.” : Select “instantaneous value” or “average value” for each measurable com- ponent. “Wet/Dry” : Select “Wet” or “Dry” for each measurable component. When “Dry” is set, O setting of the “Analog Input”...
  • Page 85 6.6.2 Wet/dry Make a setting of “Wet” or “Dry” for each measurable component. The setting is reflected on the display on the “Measurement” screen. ● You can set the O conversion value to whichever of wet or dry, regardless of the setting of measured val- ●...
  • Page 86 Select the “Inst” or “Avg” by the key or key. Press the key to move the cursor to “Range Control” setting. Press the key to move the cursor to the set component. key can move the cursor backward in the middle of the setting. The setting fixed by the key does not return to the previous setting, even if the cursor is moved by the key.

  • Page 87: Analog Input

    6.7 Analog input By providing the signals from external sensors to the control unit, you can reflect the changes in gas condi- tions into the measurement result. The analyzer can accept two 4–20 mA DC inputs from a thermometer, pressure gauge, flowmeter, oxygen analyzer, and/or moisture meter. Wire between each sensor and the ana- log input terminal of the control unit in reference to “3.2 Wiring diagram”.
  • Page 88 Select the channel (CH1 or CH2) connected to AI terminal by the key or the key, and press the key. Enter the temperature (°C) corresponding to 4mA DC output of the output signal of the thermome- ter. Change the numeric value by the or the key, and move the digits by the key.
  • Page 89 conversion The analyzer converts the measured concentration into the value in reference to the O con- centration provided by an external oxygen analyzer. Where: : converted concentration Cs : measured gas concentration (%) Os : Measured O concentration (%) On : Reference O concentration (%) *Default value is 12% - 79 - INZ-TN8ZSS-E...
  • Page 90 6.7.2 Analog input setting: fixed value The description here is an example of the H O input. In such cases that the gas conditions do not change, that no external sensor is available, or that no analog in- put terminals are left, set a fixed value. Note that if there is a large difference between the setpoint and the actual value, the analyzer may not be able to deliver accurate measurement.
  • Page 91 The same procedure can be implemented as for pressure gauge, thermometer or oxygen analyzer 6.7.3 Air purge pressure If a pressure gauge is installed on air purge pipe, and connected to the control unit, the analyzer can emit an alarm when the purge pressure is below the setpoint. ●...
  • Page 92 Enter the purge pressure value to output alarm. Change the numeric value by the key or key, and move the digits by the key. Press the key to validate the set input value. Enter the pressure value corresponding to 4, 20mA DC output in the same manner.

  • Page 93: Analog Output

    6.8 Analog output There are two analog outputs (4 to 20mA DC output) as a standard specification. This allows you to emit the measured value and the O conversion value individually. For each of them you can set the average value or the instantaneous value separately.

  • Page 94: Fine Adjustment Of Analog Output Value

    6.9 Fine adjustment of analog output value The analog output values may slightly deviate from appropriate values due to load resistance. In such a case, adjust the analog output by the following method. Point the cursor to "Password" in the bottom left of the “Menu”...
  • Page 95 This device has the simulation output function. Point the cursor to “Output Fine Tuning” at the bottom and press the key. Select an item from “Meas Output”, “Zero Output”, “Half Out- put”, or “Span Output” by the key or the key, and press the key.
  • Page 96 Press the key twice, and the cursor will return to the initial position and the “output fine tuning” will change back to “Meas Output”. - 86 - INZ-TN8ZSS-E...

  • Page 97: Digital Output

    6.10 Digital Output Follow the instructions to check if the digital output relays properly work, and/or if the wiring has been done appropriately. 6.10.1 Checking the digital output by using the alarm The terminal number and the initial setting of each relay are shown in parenthesis. (1) Light intensity low (DO1, SPST-NO) Remove the receiver box or the transmitter box to generate a “light intensity low”...
  • Page 98 6.10.2 Changing the relay contact Open the cover of the control unit. Change the position of the shorting plug for the switch. Function Between 1 and 2 Between 2 and 3 SW1…SW6 Digital output change SPST-NC SPST-NO SW1: DO1 (Light intensity low) SW2: DO2 (Device failure) SW3: DO3 (During hold / during calibration) SW4: DO4 (Overrange/underrange)

  • Page 99: Check Cell

    6.11 Check cell 6.11.1 Usage The check cell is intended to be used to check a deviation of the span point without removing the device from the stack. However, if the gas concentration inside the stack is not stable, the check is unavailable. You cannot check the zero point as far as the measured gas exists in the stack.
  • Page 100 6.11.2 Concentration of the gas which is fed to the check cell and gas concentration fluctuation Based on the Lambert-Beer Law, absorption intensity is proportional to gas concentration and the length where the gas exists (optical path lengths or stack length). Since the check cell length is 0.25m, the gas concentration to be fed is calculated from the following equa- tion.
  • Page 101 6.11.3 Operation method (1) Remove the cap from the gas inlet and the outlet of the check cell. Connect the inlet side to the N cylinder. (2) Feed N gas to the check cell to obtain the concentration of the target gas inside the stack. (3) Feed the gas, 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.

  • Page 102: Maintenance

    Note that the Table 7 － 2 provides the guideline for maintenance items and intervals, assuming standard gas, operation, and installation environment. Only qualified personnel who have been trained by Fuji Electric should perform maintenance works.

  • Page 103: Zero Calibration

    7.3 Zero calibration Refer to “6.1 Zero calibration”. 7.4 Span calibration Refer to “6.2 Span calibration”. 7.5 Replacement of O-ring and packing Replace the O-ring and silicon packing A annually. Notes: • When replacing the O-ring and the packing, be careful not to touch the lenses of the transmitter box and the receiver box.

  • Page 104: Troubleshooting

    8. TROUBLESHOOTING (1) “Low Light Trans” alarm 1) Does the gas temperature when you carry out the measurement differ from the temperature at the time of light axis adjustment? → If yes, the stack might have been deformed by temperature change, which resulted in deflection of the light axis. Re-adjust the light axis.
  • Page 105 (6) “AI Under” alarm 1) Did you set the analog input to CH1 or CH2 while no sensor is connected to the AI terminal? → Set the analog input to the fixed value or connect the sensor to the AI terminal. 2) Did you set the channel corresponds to the AI terminal being used? →...
  • Page 106 (11) The measured value is beyond the range. 1) The sample gas actually has a concentration beyond the range. → Check the concentration by the manual analysis or other methods. 2) The stack diameter is too long for the product specification or longer than the value you set. →...

  • Page 107: Appendix 1 Specifications

    APPENDIX 1 SPECIFICATIONS 1-1 Specifications Measurement principle : Non-dispersive infrared absorbance system (NDIR) Measuring method : Cross-stack system (path system) Object of setup : Incineration facilities, denitration equipment, etc. Measurable component and range: Measurable Min.measuring Max.measuring range Measured gas Component Purge gas Component range...
  • Page 108 (11) Materials of : SUS316, BK7, FKM, PTFE, glass-cloth, silicone gas-contacting parts (12) Air purge connection : Rc1/4 (tube  10 × 8) diameter (13) Box finish color : Receiver/Transmitter box: gray Control unit cover: blue Control unit case: silver (14) Power supply : Rated voltage 100 to 240V AC Operating voltage 90 to 264 V AC...
  • Page 109 1-2 Digital output contents (1) Low light transmission : Contact is opened or closed when the intensity of the light reached the receiver is deficient. (2) Device failure : Contact is opened or closed when any of the followings occurs: Laser temperature error, light intensity high,communication error (3) During hold/during cali- : Contact is opened or closed during the analog output is held (to the...
  • Page 110 1-5 Installation environment Ambient temperature : -20°C to +55°C (receiver unit and transmitter unit) -5°C to +45°C (control unit) : ≤ 90% RH Ambient humidity Optical path length (stack : 0.5 m to 5 m inner diameter) * Consult us if the distance between the transmitter unit and the re- ceiver unit is beyond 5 m.

  • Page 111: Appendix 2 Code Symbols

    APPENDIX 2 CODE SYMBOLS - 101 - INZ-TN8ZSS-E...
  • Page 112 List for Combinations of Measureable Components, Units and Measurement ranges Component Measuring range 0 ~ 2, 2.5, 4, 5, 10, 15, 20, 25, 50 vol% 0 ~ 10, 15, 20, 25, 50, 100, 200, 250, 400, 500, 1000, 2000, 5000 ppm or mg/m 0 ~ 2, 2.5, 4,5, 10, 15, 20, 25, 50 100 vol% 0 ~ 4, 5, 10, 15, 20, 25, 50, 100 vol% (For use in high temp.)
  • Page 113 Standard accessories Name Quantity Specification Bolt 8 (16) M16 × 55 (70) *2, stainless steel 8 (16) M16, stainless steel Spring washer 8 (16) M16, stainless steel Flat washer 8 (16) M16, stainless steel Companion flange packing or According to flange specifications flange packing specified for use in high temperature Bolt for angle fine adjustments...
  • Page 114 NECESSARY ITEMS TO BE ORDERED SEPARATELY 1. Purging equipment Purging equipment is indispensable for the laser gas analyzer to remove dust and mist from the transmitter unit and the receiver unit. We offer the following three types: A set of equipment in a box, a set of equipment without box, or each single equipment. 1.1 A set of purging equipment in a box Item Model...
  • Page 115 1.3 Purging equipment Item Q’ty Model Flowmeter with 4–50 L/min scale ZZP*ZSSTQ505309P2 Flowmeter with 20–100 L/min scale ZZP*ZSSTQ505309P1 Flowmeter with 30–300 L/min scale ZZP*ZSSTQ505308P1 Filter regulator ZZP*ZSSTQ505311P1 Mist separator ZZP*ZSSTQ505310P1 R 1/4 cap nut for mist separator ZZP*ZSSR850N000075 2. Zero/span calibration equipment To carry out calibration, remove the angle adjustment unit, and install the following equipment, and then flow the zero gas or span gas.
  • Page 116 3. Optical axis adjusting tool You can adjust the optical axis by aiming the laser pointer to the center of the target. 3.1 Optical axis adjusting tool Item Q’ty Model Optical axis adjusting tool (laser pointer) Optical axis adjusting tool (target) 1 set ZZP*ZSSTQ404743C1 3.2 BNC cable for optical adjustment...
  • Page 117 4. IR card (IR visualizer) for NH Item Q’ty Model IR card (for NH3) ZZP*ZSSTQ505315P1 5. Check cell Item Q’ty Model Check cell ZZP*ZSSTQ404742C1 - 107 - INZ-TN8ZSS-E...
  • Page 118 DIMENSIONS (IN MM) - 108 - INZ-TN8ZSS-E...

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