YOKOGAWA OX400 User Manual
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YOKOGAWA OX400 User Manual

YOKOGAWA OX400 User Manual

Low concentration zirconia oxygen analyzer style: s2
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User's
Manual
Model OX400
Low Concentration Zirconia
Oxygen Analyzer
[Style: S2]
IM 11M10B01-01E
IM 11M10B01-01E
8th Edition

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  • Page 1 User’s Manual Model OX400 Low Concentration Zirconia Oxygen Analyzer [Style: S2] IM 11M10B01-01E IM 11M10B01-01E 8th Edition...

  • Page 2: Introduction

    The product is provided on an “as is” basis. YOKOGAWA shall have neither liability nor responsibility to any person or entity with respect to any direct or indirect loss or damage arising from using the product or any defect of the product that YOKOGAWA can not predict in advance. 8th Edition : Jan. 2018 (YK) Media No.
  • Page 3 <INTRODUCTION> Notes on Hardware Appearance and Accessories Check the following when you receive the product: • Appearance • Standard accessories Contact our sales representative or your local distributor if the product’s coating has come off, it has been damaged, or there is shortage of required accessories. l Model and Suffix Codes The name plate on the product contains the model and suffix codes. Compare them with those in the general specification to make sure the product is the correct one. If you have any questions, contact our sales representative or your local distributor. Symbol Marks Throughout this user’s manual, you will find several different types of symbols are used to identify different sections of text. This section describes these icons. WARNING Identifies instructions that must be observed in order to avoid physical injury and electric shock or death of the operator.
  • Page 4 • Protective ground Be sure to connect the power plug of the OX400 to the 3P socket with a protective ground pin in order to prevent electric shock. • Fuse Be sure to use a designated fuse in order to prevent a fire. Be sure to turn off the power...
  • Page 5 • The OX400 is a measuring instrument intended to be installed indoors, so do not install it in a location that is exposed to direct sunlight, rain, and wind. • Do not use the OX400 in a location that may be subject to vibrations and impact. Doing so may cause destruction and damage to the internal sensor.

  • Page 6: After-Sales Warranty

    If we replace the product with a new one, we won’t provide you with a repair report. l Yokogawa warrants the product for the period stated in the pre-purchase quotation Yokogawa shall conduct defined warranty service based on its standard. When the customer site is located outside of the service area, a fee for dispatching the maintenance engineer will be charged to the customer.

  • Page 7: Ce Marking Products

    <INTRODUCTION> CE marking products n Authorized Representative in EEA The Authorized Representative for this product in EEA is Yokogawa Europe B.V. (Euroweg 2, 3825 HD Amersfoort, The Netherlands). n Identification Tag This manual and the identification tag attached on packing box are essential parts of the product. Keep them together in a safe place for future reference. Users This product is designed to be used by a person with specialized knowledge. IM 11M10B01-01E 8th Edition : Jan. 10, 2019-00...

  • Page 8: Table Of Contents

    <CONTENTS> Model OX400 Low Concentration Zirconia Oxygen Analyzer [Style: S2] IM 11M10B01-01E 8th Edition CONTENTS INTRODUCTION .......................i After-sales Warranty ..................v CE marking products ..................vi Outline ....................... 1-1 Specifications ................... 2-1 2.1 Standard Specifications ................... 2-1 2.2 Characteristics ....................2-3 2.3 Model and Suffix Codes ................... 2-4 2.4 Standard Accessories ..................2-4 2.5 External Dimensions ..................2-5 2.6 Piping Diagram ....................2-10 2.7...
  • Page 9 viii <CONTENTS> 6.1.5 Setting Alarms (Oxygen Concentration High/Low Alarms) “ALM” ..6-6 6.1.6 Setting Calibration Gas Concentration “SEt.C” ......... 6-7 6.1.7 Setting Sensor Constant “SEnS” ............6-7 6.1.8 Setting Output Smoothing “SMoo” ............. 6-8 6.1.9 Setting Multi-Selector “MLS” .............. 6-8 6.1.10 Checking Calibration Coefficient “CoEF” ........... 6-8 6.1.11 Displaying Cell Resistance Value “CEL.r” ......... 6-9 6.1.12 Displaying Software Revision “rEV” ........... 6-9 6.2 Calibration “CAL” ................... 6-10 6.3 Communication ....................6-12 6.4 Measurement Gas Sampling Using Aspirator ..........

  • Page 10: Outline

    <1. Outline> Outline The OX400 is a highly accurate and reliable low concentration zirconia oxygen analyzer that is capable of measuring a wide range of concentrations, from 0-10 ppm up to 0-100 vol% O . This is the latest oxygen analyzer from Yokogawa, and its development was based on the company’s long experience and strong track record with this technology.
  • Page 11 Blank Page...

  • Page 12: Specifications

    <2. Specifications> Specifications 2.1 Standard Specifications Measurement object : Oxygen concentrations in inert gases containing no flammable gas, silica, corrosive gas, or liquid (including water vapor). Measurement system : Zirconia system Sampling method : P ump, aspirator, or no suction device. For the sampling gas pressure in each sampling method, refer to the sampling gas conditions. Pump and aspirator suction flow rate : Approx. 1.0 L/min. Aspirator suction conditions : A ir or N , supply pressure 65 to 100 kPaG, total discharge flow 10 L/min max. (when gas inlet and outlet are at ambient atmospheric pressure). Sample gas conditions Flow rate : 200 ± 25 mL/min (only applies to sensor) Temperature : 0-50°C (non-condensing) Humidity : Non-condensing Pressure : P ump and aspirator : 0-300 PaG No suction device :...
  • Page 13 <2. Specifications> Multi selector (optional) : Contact output for switching sample gas flow, measument flow information contact output. Note : For details , see external dimensions. Contact output specifications General : Relay Nominal contact capacity: 2 A 30V DC, 2 A 240 V AC (120 V AC for 100 V power supply) for resistive load Maximum power: 60 W, 480 VA Maximum voltage: 30 V DC, 264 V AC (132 V AC for 100 V power supply) Maximum current: 2 A DC/AC Contact input : Voltage-free contact, 1 point : Remote switching for sample gas suction pump ON/OFF : Input signal: O pen signal: 100kΩ or more Close signal: 200Ω or less Self-diagnostics Error (failure) : S ensor unit error, heater temperature error, temperature sensor disconnection, device temperature error, CPU error, fan stop. Alarm (warning) : H eater unstable, sensor defect, electromotive force abnormal, asymmetry voltage error, calibration error, sensor resistance error, O concentration upper/lower, over range.

  • Page 14: Characteristics

    <2. Specifications> Gas outlet : Rc1/4 or 1/4NPT female Electrical connection External output terminals: M3 screw Contact input/output terminals: M3 screw Serial communication: D-sub 9 pin connector Ground: within power cord connector Environment and operational conditions Installation conditions: Indoors, panel or wall mounting, non explosion area Ambient temperature: 0 to 40°C, non-condensing Ambient humidity: 5 to 85% RH Storage temperature: -5 to 50°C Safety, EMC, and RoHS conformity standards Safety : E N 61010-1 CAN/CSA-C22.2 No. 61010-01, UL Std. No. 61010-1 EMC: EN 61326-1 Class A, Table 2 (*1) EN 61326-2-3, EN 61000-3-2, EN 61000-3-3 EMC Regulatory Arrangement in Australia and New Zealand (RCM) EN61326-1 Class A KC Marking: Korea Electromagnetic Conformity Standard *1: Influence of immunity environment (Criteria A): ±20% of F.S. Note1: T his instrument is a Class A product, and it is designed for use in the industrial environment. Please use this instrument in the industrial environment only.

  • Page 15: Model And Suffix Codes

    <2. Specifications> 2.3 Model and Suffix Codes [Style: S2] Option Model Suffix Code Description Code OX400 ..........Low Concentration Zirconia Oxygen Analyzer Power supply ....100-120 V AC (*1) ....200-240 V AC Sampling method ....Built-in pump ....With aspirator ....No suction device Line connection ....

  • Page 16: External Dimensions

    <2. Specifications> 2.5 External Dimensions Panel mount type with built-in pump or no suction device (OX400----/P) Unit: mm Mount 10 to 20 19.3 Note: Pump ON/OFF switch; when no suction device [-N] is specified for the sampling method, this switch is not installed. Frame Frame For the notes on panel mounting, see page 6.
  • Page 17 <2. Specifications> Panel mount type with aspirator (OX400--A--/P) Unit: mm Mount 19.3 10 to 20 Frame Frame 40 to 50 (Line connection : in case of Rc1/4) For the notes on panel mounting, see page 6. Screw Ventilation holes 60 to 70 (Line connection : in case of 1/4NPT) ±1...
  • Page 18 <2. Specifications> Desktop type with built-in pump or no suction device (OX400----) Unit: mm Rear Sample gas inlet 35.3 With multi selector function Sample gas outlet For the notes on panel mounting, see page 6. 10 to 20 19.3 Note: Pump ON/OFF switch; when no suction device [-N] is specified for the sampling method, this switch is not installed.
  • Page 19 <2. Specifications> Desktop type with aspirator (OX400--A--) Unit: mm (Line connection : Aspirator in case of Rc1/4) Aspirator (Line connection : in case of 1/4NPT) Bushing Bushing Connector Rear Sample gas inlet 35.3 With multi selector function Aspirator gas inlet (Φ6) Aspirator and sample gas outlet (Φ8)
  • Page 20 <2. Specifications> Activated carbon filter Unit: mm Activated carbon filter of Maintenance space option code “/A” The filter holder including more than 200 piping connection can be K9643KH: Rc1/4 moved upward to replace K9643KJ: 1/4NPT a filter element. 29.5 2-M5 screws Sample gas inlet (Rc1/4 or 1/4NPT) Mark “A”...

  • Page 21: Piping Diagram

    2-10 <2. Specifications> 2.6 Piping Diagram Built-in pump (Sampling method [-P]) Filter2 Suction pump Sample gas Oxygen Restriction sensor Filter1 Pipe connection Throttle Rc1/4 or valve Heater (Operable from 1/4NPT the front panel) Flow meter With aspirator (Sampling method [-A]) Filter2 Sample gas Oxygen sensor Filter1...

  • Page 22: Wiring Diagram

    2-11 <2. Specifications> 2.7 Wiring Diagram OX400 Rear Terminal (M3 screw) Alarm Pump ON/OFF PUMP (Oxygen concentration high/low) Contact input Contact output (available when suffix code of with built-in pump “-P” specified) Error (Fail) (NOT using) FAIL Contact output Primary output (4 to 20 mA DC)
  • Page 23 Blank Page...

  • Page 24: Installation

    WARNING Never use the OX400 in an explosion hazardous area. Doing so may cause a fire, explosion, or the like. • The OX400 is a measuring instrument intended to be used indoors. Do not install it in a location that is exposed to direct sunlight, wind, and rain. • Do not use the OX400 in a location that may be subject to vibrations and impact. Doing so may cause destruction and damage to the internal sensor.

  • Page 25: How To Install

    Do not block the air inlet. Distance of 100 or more Notes on installation Hot air is discharged from the air outlet on the rear panel of the OX400. Maintain at least 100 mm of free space around the OX400 to ensure adequate ventilation.

  • Page 26: Installing Panel Mount Type

    Installing Panel Mount Type (1) Attach a panel mount frame to the side of the OX400, insert it into the panel, and securely screw it to the panel. (2) Provide a distance of 100 mm or more behind the OX400 in order to not block the outlet of the cooling fan on the rear panel. (3) The air inlet of the cooling fan is located on the bottom panel of the OX400. Be sure to provide a distance of 25 mm or more from the bottom panel in order to not block the bottom panel of the OX400. Unit: mm Mount 10 to 20 19.3 Air is discharged from the cooling Distance of 25 or more...

  • Page 27: Mounting Activated Carbon Filter

    <3. Installation> 3.2.3 Mounting Activated Carbon Filter Mount the filter on a panel or wall. To fix the filter with M5 screws. When replace a filter pack, 200 mm or more of maintenance space is necessary. If necessary, the piping connection should be removable. Activated carbon filter of Unit: mm Maintenance space option code “/A” The filter holder including more than 200 piping connection can be K9643KH: Rc1/4 moved upward to replace K9643KJ: 1/4NPT...

  • Page 28: Piping And Wiring

    <4. Piping and Wiring> Piping and Wiring 4.1 Piping Be sure to observe the following precautions when connecting the gas pipe to the OX400. (1) The connections for both the gas inlet and outlet are Rc1/4 or 1/4NPT. Use the specified thread and securely connect the gas pipe so that no leakage will occur. WARNING When screwing in the pipe, be sure to hold the inlet hexagonal part in place with a wrench or the like.

  • Page 29: Wirings

    For the power supply, be sure to use the rated voltage shown on the rear panel. Connection to a power supply with a different voltage may cause damage to the OX400. Power cord connector with a protective ground pin is used for power supply wiring for the OX400. Be sure to securely insert the connector of supplied power supply cord to the OX400, and connect the plug to a 3P socket with a protective ground pin.

  • Page 30: Signal Wiring

    <4. Piping and Wiring> OX400 Rear Terminal (M3 screw) Alarm Pump ON/OFF PUMP (Oxygen concentration high/low) Contact input Contact output (available when suffix code of with built-in pump “-P” specified) Error (Fail) (NOT using) FAIL Contact output Primary output (4 to 20 mA DC)
  • Page 31 0-90% 0-100% (MANUAL fixed range) (Partial range) (4) Contact input terminal This is a terminal to remotely turn on and off the internal pump using an external contact. This is enabled only when the pump switch on the front panel of the OX400 is ON. The pump is OFF when the contact is closed, and ON when the contact is open. Nothing happens if the OX400 is not equipped with a pump. IM 11M10B01-01E 8th Edition : Jan. 10, 2019-00...
  • Page 32 <4. Piping and Wiring> (5) Error contact output terminal If an error (ERRx) occurs, the contact closes. (6) Alarm contact output terminal If an oxygen concentration high/low limit alarm (ALM7) occurs, the contact closes. (7) Contact output terminal for flow path switching by multi-selector (option) This terminal is added only when the option “/MS” is specified. • Output terminal for measurement path flow switching: This is a contact output to switch valves for sampling flow paths by panel operation of the OX400. You can select and turn on one of the three flow paths. “1” when lines between MS1, MS2, MS3 terminals and MSCOM are closed, and “0” when open. For details, see Section 6.5. Table 4.3 Measurement Flow Path Switching Output by Multi-selector MS1-MSCOM MS2-MSCOM MS3-MSCOM MS OFF MS1 ON (Select flow path 1) MS2 ON (Select flow path 2) MS3 ON (Select flow path 3) • Output of information on flow path under measurement by multi-selector: Answer-back output of the flow path that is being measured. ”1” when lines between terminals MSI1/MSI2 and MSICOM are closed, and “0” when open. Table 4.4 Output of Information on Flow Path under Measurement by Multi-selector...

  • Page 33: Communication

    MSI2 OUTLET Contact output for measurement flow path data 172608 SERIAL N200 (RS232) FUSE RS232 communication 250V T3.15A connector Power cord connector for two-pole plug with earthing contact Figure 4.4 Wiring Terminals 4.2.3 Communication A D-sub 9-pin connector for RS232 communication is located on the rear panel of the OX400. RS232 connection cable length must be no longer than 3 m for CE marking. IM 11M10B01-01E...

  • Page 34: Names And Functions

    <5. Names and Functions> Names and Functions 5.1 Front Panel Figure 5.1 Description of Front Panel Main Display The main display digitally displays the oxygen concentration and set value in four digits with a decimal point. The display flashes at one-second intervals while waiting for key input. Oxygen Concentration Unit LED The unit of displayed oxygen concentration is displayed by LED. The LED is not on when a non-oxygen concentration value is displayed. The unit you selected flashes until you confirm MODE LED The LED turns on when you push the MODE switch to enable the maintenance mode.
  • Page 35 SETTING/ENTER Key Press the key to confirm the item or number to be set. Press [ENT] to display the operation description. Gas Flow Rate Adjustment Knob Use the knob to adjust the gas flow rate of gas flowing into the sensor. PUMP Switch Turn the switch on to use the built-in pump. This switch is effective only when the POWER switch is on. POWER Switch This is the power switch of the OX400. The LED display employs a 7-segment alphanumeric display. Figure 5.2 shows the display characters and alphanumeric characters in the display. Alphanumerics LED Display Alphanumerics LED Display Alphanumerics LED Display Figure 5.2...

  • Page 36: Rear Panel

    Gas Outlet This is an outlet for discharging sample gas. The connector is Rc1/4 or 1/4NPT. This is a cooling fan inside the OX400. Make sure the outlet of the fan is not blocked Power Plug This is a 3P power plug with a ground terminal. A fuse is included. Use the supplied power cord.
  • Page 37 <5. Names and Functions> This is the contact output to switch measurement flow path. Furthermore, measurement flow path data is output at this contact output terminal. RS232 Connector A D-sub 9-pin connector is connected to this connector when using serial communication. IM 11M10B01-01E 8th Edition : Jan. 10, 2019-00...

  • Page 38: Operation And Parameters

    <6. Operation and Parameters> Operation and Parameters The OX400 has two modes, “Measurement Mode” and “Maintenance Mode.” Oxygen concentration is displayed in the measurement mode. The setting of operation parameters and calibration operation are performed in the maintenance mode. Furthermore, the MODE LED on the front panel is on in the maintenance mode. To enter the maintenance mode, or to return to the measurement mode from the maintenance mode, hold down the [MODE] key for two seconds.

  • Page 39: Startup And Settings

    Turning on the Power Turn on the POWER switch on the front panel. After all displays turn on, the warm-up screen “HEAt” appears, and the OX400 automatically enters the warm-up mode. The remaining warm-up time is displayed and counted down from 20, and when the warm- up time ends, the measurement screen appears automatically. The warm-up time is about 20 minutes. The mA output is 4 mA during the warm-up time, and the voltage output is 0 V.
  • Page 40 <6. Operation and Parameters> MODE Setting the Auto Range Hold down for 2 seconds. (Example of setting the range of 10 x 10 Auto Range Enter codes 1 to 9. (Note 1) (Note 1) To “rEV” AUto [ENT] [ENT] [ENT] ▼↓↑▲...

  • Page 41: Setting Secondary Output "Out2

    <6. Operation and Parameters> 6.1.2 Setting Secondary Output “oUt2” Operation: Hold down the [MODE] key for 2 seconds, select “oUt2” with the [▲], [▼] keys, and press the [ENT] key. With respect to the secondary output, select one of the three types of voltage output: 0-1 V is “1,” 0-5 V is “5,” and 0-10 V DC is “10.” Figure 6.3 shows an example of setting 0-1 V DC “1.” To “rEV” ▼↓↑▲ MODE Hold down ▼↓↑▲ for 2 seconds. To “10” 0-1 V DC is confirmed. ▼↓↑▲ ▼↓↑▲ [ENT] oUt2 [ENT] [ENT] Return to “oUt2.” oUt2 oUt2 ▼↓↑▲ ▼↓↑▲ HoLd (0-5 V D C ) oUt2...

  • Page 42: Setting Burnout Function "Namu

    <6. Operation and Parameters> 6.1.4 Setting Burnout Function “nAMU” Operation: Hold down the [MODE] key for 2 seconds, select “nAMU” with the [▲], [▼] keys, and press the [ENT] key. Set the burnout function for the primary current output of 4-20 mA DC (compliant with NAMUR). Select one of the options: No burnout function is “non,” burn-up is “Er.HI,” and burn-down is “Er. Lo.” Figure 6.5 shows an example of setting burn-up. NOTE: B urnout is a function compliant with NAMUR that allows increasing/decreasing the current output to the high/low limits in the event of a failure. Burn-up allows increasing the output to the high limit of 21.0 mA and burn-down allows decreasing the output to the low limit of 3.6 mA. The burnout function works in the event of an error (when the FAIL contact output closes). To “rEV” ▼↓↑▲ MODE ▼↓↑▲ Hold down for 2 seconds.

  • Page 43: Setting Alarms (Oxygen Concentration High/Low Alarms) "Alm"

    <6. Operation and Parameters> 6.1.5 Setting Alarms (Oxygen Concentration High/Low Alarms) “ALM” Operation: Hold down the [MODE] key for 2 seconds, select “ALM” with the [▲], [▼] keys, and press the [ENT] key. High and low limit alarms can be set to the measured oxygen concentration values. With respect to the alarm setting, the following four options are available: No alarm “oFF,” high/low limits “ALL,” high limit alarm “AL.HI,” and low limit alarm “AL.Lo.” If the high and low limit values are reversed or the set value is larger than 100%, an input error occurs and the setting is not accepted.

  • Page 44: Setting Calibration Gas Concentration "Set.c

    <6. Operation and Parameters> 6.1.6 Setting Calibration Gas Concentration “SEt.C” Operation: Hold down the [MODE] key for 2 seconds, select “SEt.C” with the [▲], [▼] keys, and press the [ENT] key. Set the O concentration of gas used for calibration. Alternatively, this setting can be performed while performing calibration “CAL.” The gas concentration that can be set is restricted depending on which calibration is performed (which depends on the specification in calibration “CAL”). The oxygen concentration of air is fixed to 20.6% O , so it cannot be set. Figure 6.7 shows a setting example in 3-point calibration “ALL.”...

  • Page 45: Setting Output Smoothing "Smoo

    2 seconds. Figure 6.9 Setting Smoothing Factor “SMoo” 6.1.9 Setting Multi-Selector “MLS” This item is an option, so you do not need to set it unless you specified the option code “/MS.” Operation: Hold down the [MODE] key for 2 seconds, select “MLS” with the [▲], [▼] keys, and press the [ENT] key. Set the relay contact to switch measurement flow for path. Up to three sampling flows can be selected. Even though this setting is performed for an OX400 for which the option code “/MS” was not specified, nothing will happen. Figure 6.10 shows a setting example (set measurement flow path 1 to 3). With respect to the usage example, see Section 6.5. To “rEV” ▼↓↑▲ MODE Hold down ▼↓↑▲ for 2 seconds. To “0”...

  • Page 46: Displaying Cell Resistance Value "Cel.r

    2 seconds. 56. 1 [ENT] [ENT] CEL.r Return to “CEL.r.” ▼↓↑▲ CEL.r Figure 6.12 Displaying Cell Resistance Value “CEL.r” 6.1.12 Displaying Software Revision “rEV” This item is for checking the software revision of the OX400 and is not a setting. Operation: H old down the [MODE] key for 2 seconds, select “rEV” with the [▲], [▼] keys, and press the [ENT] key. The current software revision is displayed. Figure 6.13 shows a display example. IM 11M10B01-01E 8th Edition : Jan. 10, 2019-00...

  • Page 47: Calibration "Cal

    Hold down the [MODE] key for 2 seconds to return to the beginning of the calibration “CAL” and press the [MODE] key again to return to the measurement state. With respect to the calibration methods of the OX400, there are four types of method. (1) 3-point (All) calibration “ALL” By performing calibration at the three points of 10 ppm, 1000 ppm, and Air, the linearity for the entire zone between 0-10 ppm and 100% O is guaranteed.
  • Page 48 6-11 <6. Operation and Parameters> If an error occurs during calibration, the ERR/ALM lamp turns on, and an error/alarm code is displayed on the sub-display. That calibration may become invalid depending on the error factor. Figure 6.14 shows the calibration method (including the calibration gas concentration setting). With respect to the input method of a numerical value, decimal point, and unit, see Section 6.6. C A L M O D E [ENT] Hold down...

  • Page 49: Communication

    C C C C , Terminate code Data delimiter “,” Figure 6.15 Configuration of Data Logging Packet When communication terminal sends “TS” command to the OX400, OX400 will feed back data logging packet periodically (approx. 200 ms.) When you want to stop comm, send the stop command “CR”. The content of the data logging packet has the following meanings. Table 6.2 Content of Data...
  • Page 50 6-13 <6. Operation and Parameters> Table 6.3 Error Factor and Output Character List Output characters Error factor 0001 Err1: Sensor error 0002 Err2: Heater temperature error 0004 Err3: Temperature sensor burnout 0008 Err4: Device temperature error 0010 Err5: CPU error 0020 Err6: FAN stop If multiple errors occur, the logical sum of output characters is output. Example 1 : 0003; Err1 and Err2 are occurring Example 2 : 0017; The four errors Err1, Err2, Err3, and Err5 are occurring. Err1: Sensor error Err2: Heater temperature error Err3: Temperature sensor error Err4: Device temperature burnout Err5: CPU error...

  • Page 51: Measurement Gas Sampling Using Aspirator

    6.4 Measurement Gas Sampling Using Aspirator If you selected “-A”: with an aspirator as the sampling method, an aspirator is included in the OX400 package. Connect the aspirator to the sample gas outlet on the rear panel of the OX400. If you selected “T”: 1/4NPT as the piping connector, connect an adapter between the sample gas outlet and the aspirator. Supply clean air or N gas to the aspirator. The external diameter of the gas supply inlet of the one-touch connector type aspirator is ø6, and the gas outlet is ø8. Do not confuse the supply inlet...

  • Page 52: Switching Measurement Flow Path Using Multi-Selector

    When oxygen concentration at multiple locations is measured, the multi-selector allows switching of measurement flow path using the relay contact output. Three gas flows can be switched from the panel. Specify the flow path No. (“1” through “3”) in the maintenance mode “MLS.” The default in “MLS” is “0.” For details, see Section 6.1.9, “Setting Multi-Selector “MLS”.” Furthermore, output of measurement flow path data can be performed by combining two contacts. Contact output for switching of measurement OX400 terminal markings flow path 1st flow path Solenoid valve 2nd flow path (Note) 3rd flow path...

  • Page 53: Numerical Value, Decimal Point, And Unit Input Operation

    6-16 <6. Operation and Parameters> 6.6 Numerical Value, Decimal Point, and Unit Input Operation Figure 6.21 shows an example of operation to input a numerical value, decimal point, and unit. Italic characters indicate the flashing state. Numerical value input Increment by pressing the ▲key. Decrement by pressing the ▼ key. (0→1→ • • • →9→0) (9→8→• • • →0→9) The 4th digit flashes. The 3rd digit flashes. The 1st digit flashes.

  • Page 54: Inspection And Maintenance

    <7. Inspection and Maintenance> Inspection and Maintenance Routine inspection and maintenance is important to ensure operation of the OX400 in a good condition. Perform regular inspection and maintenance in accordance with the following instructions. 7.1 Routine Inspection and Maintenance (1) Checking readings Measure calibration gas about once every two to three months and check the readings. If an error is found with the calibration gas concentration, perform zero-span calibration in the range you use.

  • Page 55: Inspection In The Event Of An Alarm (Alm)

    <7. Inspection and Maintenance> 7.2.1 Inspection in the Event of an Alarm (ALM) If an error is detected by the self-diagnosis function of the OX400 during operation, the ERR/ALM lamp flashes and an alarm (ALM) code is displayed on the sub-display. If an error is detected, take action according to the Table 7.1. Table 7.1 Alarm (ALM) Conditions and Actions Display Content Diagnosis Condition Action ALM1 Unstable heater The heater temperature changed by ±5°C or...

  • Page 56: How To Replace Sensor

    CMPL at the end of this manual. Be sure to perform calibration after replacing the sensor. Replace the sensor according to the following instructions. 7.3.1 Removing Sensor (1) Turn off the power, and be sure to pull the power cord out of the socket. (2) Wait for about 1.5 hours until the heater temperature falls to the ambient temperature level. WARNING Be sure to replace the sensor after the heater temperature has fallen sufficiently. Not doing so may cause burn injuries. (3) To remove the upper cover, remove set screws at three points on the rear panel of the OX400. (4) Slide the upper cover backwards and remove it upwards. Remove the three screws and slide the upper cover backwards. PUMP FAIL INLET RCCOM MSI1 MSI2 OUTLET...
  • Page 57 <7. Inspection and Maintenance> (8) Rotate the inlet-side joint nut counter clockwise seen from the heater side and remove Lead wire connector Sensor Heater Lead wire connector Heater O-ring (9) Pull out the holding plate , remove the ring , and pull the sensor out of the heater straightforward.

  • Page 58: Installing Sensor

    <7. Inspection and Maintenance> 7.3.2 Installing Sensor (1) Pass a new sensor through the heater. Lead wire connector Sensor Heater (2) Insert the nut , holder , and O-ring in this order from the front end of the sensor. At this point, set the O-ring in the position about 3 mm from the sensor front end (It is recommended to replace the O-ring with a new one). Lead wire connector 13 mm Sensor Heater Marking O-ring Approx.
  • Page 59 <7. Inspection and Maintenance> (4) Insert the ring and holding plate in this order into the sensor. Hold the sensor with fingers and rotate the joint right and left to push it into the sensor slowly. Lead wire connector Sensor Heater (5) Rotate and tighten the ring into the joint . Secure the holding plate with two screws (7).

  • Page 60: How To Replace Activated Carbon Filter

    <7. Inspection and Maintenance> 7.4 How to Replace Activated Carbon Filter Activated charcoal filter will be provided when “/A” option is specified. Filter should be installed between gas sampling line and gas inlet of OX400. Filter has a life time and need to replace periodically, its replacement interval vary depending on the application. As for the part number, see CMPL at the end of this manual. (1) Loosen the four screws with washers of holder and remove holder . (Figure 7.4) (2) Remove cotton filter...

  • Page 61: How To Replace The Line Filter

    <7. Inspection and Maintenance> 7.5 How to Replace the Line Filter The line filter is inside the gas inlet connector on the rear panel. The line filter is covered by a plate, and both these parts are held in place by a C-shaped snap ring. The following explains how to replace the line filter. This requires a pair of snap ring pliers and some tweezers. (1) Insert the tips of the snap ring pliers in the holes on the snap ring and apply pressure to release and remove the snap ring. (2) With the tweezers, remove first the plate and then the filter. (3) Attach the new filter, plate, and snap ring in this order. • Insert the filter into the connector with the smooth side facing up. • Place the plate over it with the fine mesh side facing down.

  • Page 62: Parameter Settings

    <8. Parameter Settings> Parameter Settings IM 11M10B01-01E 8th Edition : Jan. 10, 2019-00...
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  • Page 64: Customer Maintenance Parts List

    Customer OX400 Maintenance Low Concentration Zirconia Oxygen Analyzer [Style: S2] Parts List Aspirator (Rc1/4) Aspirator (1/4NPT) Panel Mounting Hardware Sensor related parts (internal) PUMP FAIL INLET RCCOM MSI1 MSI2 OUTLET 172608 SERIAL (RS-232) N200 FUSE 250V T3.15A Heater (internal) Item Part No.
  • Page 65 Activated Carbon Filter (Option code "/A") Cotton filter Felt filter Item Part No. Description K9643KH Filter Assembly (Rc1/4) K9643KJ Filter Assembly (1/4NPT) K9643KK Activated Carbon Filter Element Kit (15 times replacement) K9643KL Filter Kit (5 times replacement) CMPL 11M10B01-02E 2nd Edition : Apr. 2011 (YK)
  • Page 66 Customer OX400 Maintenance Low Concentration Zirconia Oxygen Analyzer [Style: S2] Parts List Aspirator (Rc1/4) Aspirator (1/4NPT) Panel Mounting Hardware Sensor related parts (internal) PUMP FAIL INLET RCCOM MSI1 MSI2 OUTLET 172608 SERIAL (RS-232) N200 FUSE 250V T3.15A Heater (internal) Item Part No.
  • Page 67 Activated Carbon Filter (Option code "/A") Cotton filter Felt filter Item Part No. Description K9643KH Filter Assembly (Rc1/4) K9643KJ Filter Assembly (1/4NPT) K9643KK Activated Carbon Filter Element Kit (15 times replacement) K9643KL Filter Kit (5 times replacement) CMPL 11M10B01-02E 2nd Edition : Apr. 2011 (YK)

  • Page 68: Revision Information

    Revision Information : Model OX400 Low Concentration Zirconia Oxygen Analyzer [Style: S2] l Title l Manual No. : IM 11M10B01-01E Jan. 2018/8th Edition Corrected some erros. (pages 2-1 to 2-8) Aug. 2017/7th Edition Corrected some erros. (pages 2-3, 6-11) May 2017/6th Edition Addition RoHS (pages i, iv, vi, 2-3) Feb. 2016/5th Edition Revised EMC standards, etc. Aug. 2015/4th Edition P 2-3, Section 2.1, “Standard Specifications” Conformance to Safety and EMC standards: Added of KC Marking and some spell error corrections and addition of specification description. P 2-4, Section 2.3, “Model and Suffix Codes” Note 2: Addition of the description. P 2-5, Section 2.4 “Consumables” K9643FB: Deleted the asterisk. P 6-1, Section 6, “Operation and Parameters” Figure 6.1: Changed of parameters cord. P 6-7, Section 6.1.7, “Setting Sensor Constant “SEnS” ”: Changed the parameters cord of description and figure 6.8. P 6-9, Section 6.1.9, “Setting Multi-Selector “MLS” Figure 6.11: Changed of parameters code. P 6-12, Section 6.3, “Communication” • Communication Specifications: Added of figure. P 7-7, Some coments added. May. 2011/3rd Edition P 2-1, Some revision of output range description (auto range modified); P 2-4, Some revision of MS- code description ("/F" changed to "/A" for activated carbon filter); P 2-5, Some revision of Consumable (Parts for "/A" activated carbon filter added); P 2-9, Some revision of External Dimensions (for "/A" activated carbon filter); P 3-4, Some revision of dimensions on Figure 3.3 (for "/A" activated carbon filter); P 4-4, Some revision of Table 4.2 Range Marker (auto range modified); P 6-2, Some revision of Auto Range description on subsection 6.1.1 (How to set range code modified); P 7-7 Some revision...
  • Page 69 Blank Page n For further information go to our website: http://www.yokogawa.com/an...

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