User’s Manual TDLS220 Tunable Diode Laser Spectroscopy Analyzer IM 11Y01B02-01E-A Yokogawa Corporation of America Yokogawa Corporation of America 2 Dart Road, Newnan, Georgia U.S.A.
i PREFACE This Instruction Manual has been compiled for Owners/Operators of the Model TDLS220 Tunable Diode Laser Analyzer • • SAFETY should be considered first and foremost importance when working on the equipment described in this manual. All persons using this manual in conjunction with the equipment must evaluate all aspects of the task for potential risks, hazards and dangerous situations that may exist or potentially exist. Please take appropriate action to prevent ALL POTENTIAL ACCIDENTS.
ii Safety Precautions Safety Precautions Safety, Protection, and Modification of the Product Safety, Protection, and Modification of the Product • In order to protect the system controlled by the product and the product itself and ensure safe operation, • observe In order tothe protect theprecautions system controlled by the in product and the productWe itselfassume and ensure safe operation, safety described this user’s manual.
iii SAFETY should be considered first and foremost importance when working on the equipment described in this manual. All persons using this manual in conjunction with the equipment must evaluate all aspects of the task for potential risks, hazards and dangerous situations that may exist or potentially exist. Please take appropriate action to prevent ALL POTENTIAL ACCIDENTS.
iv Areas of a potentially hazardous temperature are labeled with the following symbol: 4) Chemical hazard Analyzer can measure a wide variety of chemical species in various gas mixtures. CHEMICAL COMPOSITION OF SAMPLE SUPPLIED TO THE ANALYZER AND ITS VARIATION LIMITS MUST BE APPROVED BY YOKOGAWA to ensure safe operation of the device. Gas stream supplied to the analyzer gas cell for analysis can be potentially harmful for people and environment.
TOC-1 Preface.......................................................................................................................................... i Safety Precautions...................................................................................................................... ii 1 Quick Start....................................................................................................................... 1-1 2 Introduction and General Description........................................
TOC-2 8 Troubleshooting............................................................................................................. 8-1 8.1 Common Troubleshooting Step..................................................................................8-2 8.1.1 On Process Gas or Zero Gas or Span Gas...........................................................8-2 8.1.2 Trouble Shooting procedure for lost and /or Low Transmission...........................8-3 8.2 Analyzer Warnings.
<1 QUICK START> 1-1 1 Quick Start Step Title Description 1.0 Preparation Carefully un-pack and check equipment for any obvious damage. 1.1 Ensure the appropriate utilities are available and ready for connection. These may include electrical power, nitrogen purge gas, instrument air, validation gas, etc. Make sure the sample handling and conditioning system meets the sample inlet and outlet requirements for TDLS220. Refer to Section XX “Installation” for details. 1.
<1 QUICK START> 1-2 Leak-check all connections and ensure pressure ratings are not exceeded! 4.2 5.0 Power-Up Make sure the power module door is closed. Do not open this door when the analyzer is powered. Apply the AC power to the analyzer. 5.1 Open the Control module door. Inside this module use the internal On-Off switch to power-up the analyzer (located lower right hand side). 5.2 Observe the various LED clusters on the backplane and FPGA boards.
<1 QUICK START> 1-3 8.2 Gas Pressure Select Fixed or Active. If Fixed, enter in the correct process gas pressure. If Active, enter in the 4-20mA input signal range proportional to the pressure transmitter output range. 8.3 Gas Temperature Select Fixed or Active. If Fixed, enter in the correct process gas temperature. If Active, enter in the 4-20mA input signal range proportional to the temperature range. 8.4 Configure the system I/O by entering in to the System I/O sub menu in Configure. 8.
<2 INTRODUCTION AND GENERAL DESCRIPTION> 2-1 2 Introduction and General Description The TDLS220 TDL analyzer is designed to measure concentrations of selected target chemical species (most often Oxygen or Moisture) in gas phase samples that have been extracted from the process. Typically, there is a continuous flow of analyzed gas through the TDLS220 optical gas cell.
<2 INTRODUCTION AND GENERAL DESCRIPTION> 2-2 2.1.1 Measurement Current ramp to laser Signal at Detector • During measurement the laser is held at a fixed temperature. This is the coarse wavelength adjustment. • A current ramp is fed to the laser. This is the fine wave length adjustment. • The current is ramped to scan across the wavelength region desired. • The collimated light passes through the gas to be measured.
<3 GENERL SPECIFICATIONS> 3-1 3 General Specifications Measurement range: Output signal: Dependent on application. Ranges from 0-1% up to 0-25% for analysis of Oxygen. (3x) 4- 20mA DC with maximum load of 900 Ohm Three isolated outputs for concentration, transmission of light and may be used for gas concentration, transmission, retransmission of data inputs or dual range 3.
<3 GENERL SPECIFICATIONS> 3-2 Performance specification Precision* 0.01% 02 Linearity* Typically R2 > 0.999 Response time 5 or 10 seconds plus transport time to analyzer Drift* Span drift (6-12 month calibration) <+/0.1% 02 Zero drift (6-12 month Calibration) <+/0.
<3 GENERL SPECIFICATIONS> 3-3 Model and Suffix Codes Model TDLS220 Type Model TDLS220 Model TDLS220 Tunable Diode Laser Gas Analyzer Tunable Diode Laser Gas Analyzer Suffix Option Description ------------------------------------------------ --------- Tunable Diode Laser -G1--------------------------------------------- --------- General Purpose -D2--------------------------------------------- --------- NEC Class 1 Div 2 BCD -K1--------------------------------------------- --------- CSA U Special acce
<4 ANALYZER COMPONENTS> 4-1 4 Analyzer Components Figure 2 - System Overview 4.1 Main Electronics Housing Enclosure Die cast copper free aluminum grade AL Si 12 alloy (A413.0) with a powder coat exterior finish. The copper free aluminum alloy is particularly resistant to salt atmospheres, sulfur gases and galvanic corrosion. An externally hinged door opening to the left incorporates a weather tight gasket seal and four captive fastening screws (stainless steel).
<4 ANALYZER COMPONENTS> 4-2 approx 5” W x 4” H (130mm x 100mm). A clear laminated safety glass window is mounted to the inside of the door with stainless steel fasteners and a weather tight gasket. This allows for external viewing of the actual display without opening the door. The right hand side of the door accommodates a keypad (30 keys, stainless steel) which is also operated externally without opening the door. Backplane Circuit Board Large (approx.
<4 ANALYZER COMPONENTS> 4-3 Calibration Valve Relays There are three calibration valve relay circuits on the board. These are capable of actuating Form C SPDT relays. The common pole is connected to 24VDC power and the normally open pole is routed to the field terminal block. Digital ground is also routed to the terminal block TB3 as shown below.
<4 ANALYZER COMPONENTS> 4-4 Optional 6.5” Display is an industrial grade 6.5” VGA color TFT LCD Module that has a built-in CCFL backlight. Both the display and interface board are mounted to a cover plate that attaches to the inside of the enclosure door. Keypad is an industrial rated 30 key unit that has a PS/2 (6-pos miniDIN) interface direct to the SBC. It has an Ingress Protection Rating of IP65 equivalent to NEMA 4X and is of low profile design.
<4 ANALYZER COMPONENTS> 4-5 Remote Interface Options A number of options are available for remote access to the analyzer Remote Interface Unit (RIU) shown below allows remote analyzer control and data transfer from analyzer to RIU (data can be transferred from RIU via USB memory stick or Compact Flash card.
<4 ANALYZER COMPONENTS> 4-6 RIU Interconnect to TDLS220 Control Unit(s) When connecting just one analyzer to the RIU there are two twisted pair wires to consider , there are only four wires to be terminated to make the 10/100 Ethernet connection Analyzer Integral SBC RIU Integral SBC RIU Switch or Field Terminals TB6 Tx+ Tx- Rc+ Rc- Tx Tx Rc Rc Figure 5 - Connecting RIU to Analyzer(s) RIU Optional Ethernet Switch If there is more than one analyzer connected to the RIU, then they are routed via an ind
<4 ANALYZER COMPONENTS> 4-7 4.4 TruePeak TDLS220 Software The TDLS220 Analyzer Software has three significant design criteria based on the previously field proven TDLS200 software (TruePeak): • Extensive Capabilities & Features • Intuitive Menu Structure & Commands • Easy Operation The software loads itself automatically upon analyzer power-up and the initial display is the MAIN MENU.
<4 ANALYZER COMPONENTS> 4-8 Basic Menu Typical Trend Screen Figure 7 - Software Overview IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
<5 INSTALLATION AND WIRING> 5-1 5 Installation and Wiring 5.1 Mounting of the Analyzer Refer to the SAFETY section (Safe handling and relocation) for instructions on holding and moving the analyzer. The TDLS220 is suitable for wall mounting by means of the four corner located mounting holes as shown below: The holed are ½” sized for typically 3/8” or ¼” bolts and should be used with appropriate sized flat and locking washers.
<5 INSTALLATION AND WIRING> 5-2 5.2 Sample Inlet and Outlet Considerations The following criteria should be considered when selecting the installation point in respect to the process conditions (1/4” OD Swagelok tube fittings): Process Gas Condition: - The sample should be clean, dry, non-condensing at the inlet to the sample cell. The dew point of the sample should be below the sample cell operating temperature.
<5 INSTALLATION AND WIRING> 5-3 5.3 Wiring Details Connect protective ground to the designated terminal of the analyzer. Use minimum 14 AWG or equivalent. The analyzer mains must be connected to an end user provided disconnect device (a switch or circuit breaker) with 250V, 10 A ratings. The disconnect device must be located within 3 meters of the equipment, and not obstructed or placed out of reach in some way. It must be clearly labeled as the disconnect device for the TDLS220 equipment.
<5 INSTALLATION AND WIRING> 5-4 6 Factory 7 Factory 8 Field 9 Factory and/or Field 1 - Transmit 3 + Receive 4 - Receive Internal connections only – do not use 1-8 Detect Analog #1 output + Analog #2 output + Analog #3 output + 1 Gas Temperature Compensation Externally powered 4-20mA gas temperature signals are wired to 1 (+) and 2(-), 3 not used.
<5 INSTALLATION AND WIRING> 5-5 5.4 Purge Gas Requirements and Hazardous Area Systems The TDLS220 Analyzer requires a continuous nitrogen (optionally instrument air) gas purge to prevent ambient oxygen ingress to the optical path, when oxygen is the measured gas. The flow rate can be minimized as long as it prevents any ambient oxygen ingress to the measurement optical path. Other purge gases may be used as long as they do not contain any of the measured gas and a clean, dry, etc.
<5 INSTALLATION AND WIRING> 5-6 I/A Purge Inlet LASER & DETECT FLOW CELL ELECTRONICS CONTROLLER POWER HEAT TRACE I/A Purge Vent Figure 11 – Safe Area/General Purpose I/A Analyzer Purge Schematic I/A Purge Inlet FLOW CELL N Purge Inlet N2 Purge Inlet 2 LASER & DETECT General Purpose or Safe Area NN2 Purge Vent 2 Purge Vent ELECTRONICS CONTROLLER POWER HEAT TRACE I/A Purge Vent Figure 12 – Safe Area/General Purpose Dual/Split N2 & I/A Analyzer Purge Schematic IM 11Y01B02-01E-A 4th Edition Se
<5 INSTALLATION AND WIRING> 5-7 N Purge N2 Purge Inlet Inlet 2 FLOW CELL ELECTRONICS CONTROLLER LASER & DETECT POWER HEAT TRACE Hazardous Area Div 2 BCD ATEX CAT3 N2 Purge Purge Vent N Vent 2 Figure 13 – Hazardous Area N2 Analyzer Purge Schematic I/A Purge Inlet FLOW CELL ELECTRONICS CONTROLLER LASE R& DETE CT POWER HEAT TRACE Hazardous Area Div 2 BCD ATEX CAT3 Purge Pressure Switch with Indicator Div 2 BCD ATEX CAT3 I/A Purge Vent Figure 14 – Hazardous Area I/A Analyzer Purge Schematic Plea
<6 BASIC OPERATION> 6-1 6 Basic Operation Only the numerical keys, arrow keys, ENTER, ESC and BACKSPACE keys are used to control the analyzer. Their functions are determined by the context-sensitive menus of the analyzer software. The misuse of keys is not possible (rejected by software). 6.
<6 BASIC OPERATION> 6-2 Online Menu Level 1 Menu Level 2 Menu Level 3 Menu Level 4 Menu Level 5 Menu ADVANCED *Password Protected Configure System I/O Analog Output Channel 1 Conc1/Conc2/Tran/Temp/Pres/ None 4 mA- 20 mA Channel 2* Channel 3* *(similar to Channel 1) Warning Mode Fault Mode* *(similar to Warning) Block Mode Field Loop Check AO CH Calibration System Block Mode Track mode Hold Mode High (20 mA) Low (3.
<6 BASIC OPERATION> 6-3 Online Menu Level 1 Menu Level 2 Menu Level 3 Menu Level 4 Menu ADVANCED *Password Protected Calibration Offline Calibration Zero Calibraton Manual Offline Calibration Automatic Local Initate Remote Initiate: control channel Time Initate: frequency Settings: valve, purge, tiime, AO mode Restore Old Calibration Factory Calibration Zero Offset Current New Span Calibration Manual Transmission Level 5 Menu Automatic Local Initiate Remote Initiate: control channel T
<6 BASIC OPERATION> 6-4 Optional “Mini-Display 4 line x 20 character” Software Map Line 1 - Measurement Line 2 – Transmission or Second Gas Measurement Display Text Description O2 xx.x % Measured gas and unit of measurement Transmission xx.x % Laser light transmission strength (0-100% range) CH4 xx.
<6 BASIC OPERATION> 6-5 6.2 Software Guide MAIN MENU Display of Concentration & Transmission Status Window – notification of initiating, working properly, warnings or faults Gas Temperature Gas Pressure Selection of Basic or Advanced Menu Active Alarm Display Button Analyzer Shut Down Button Tag number and serial number Analyzer date and time After selection of either Basic or Advanced Menu you will see the Output Selection screen.
<6 BASIC OPERATION> 6-6 BASIC CONFIGURE PATH LENGTH – Factory set, do not adjust. Typical 40” (distance the laser beam is exposed to the process gas) PRESSURE – allows adjustment of the gas pressure value if using fixed pressure. If the analyzer is using active pressure compensation, no changes are allowed. Active pressure compensation settings are found in Advanced Menu. TEMPERATURE – allows adjustment of the gas pressure value if using fixed pressure.
<6 BASIC OPERATION> 6-7 The TREND SCREEN is identical for BASIC or ADVANCED MENUS.
<6 BASIC OPERATION> 6-8 UNITS – selection of units for path length (in, ft, cm, m), pressure (psiA, barA, kPa, torr, atm) and temperature (ºF, ºC, ºK). SYSTEM I/O – allows set up and assigning of analyzer Analog and Digital I/O. SYSTEM – displays analyzer information (serial number, Fat date, password, software version, launch/detect unit temperatures), allows setting of date/time, gas type. VALVE CONTROL ¬– allows for manual and/or automatic control of the valve driver output signals.
<6 BASIC OPERATION> 6-9 SYSTEM I/O – ANALOG INPUT Pre-calibrated at factory and not normally required. Allows calibration of 4 to 20mA input channels; follow onscreen instruction. SYSTEM I/O - DIGITAL OUTPUT Setting of Digital Output assignments (DO 1-3) CHANNEL 1 WARNINGS – Setting of levels that will trigger analyzer warning and subsequent DO. CHANNEL 2 FAULTS – Setting of levels that will trigger analyzer fault and subsequent DO.
<6 BASIC OPERATION> 6-10 CONCENTRATION OUT OF RANGE – upper and lower levels at which process gas concentration reading will trigger a warning. BOARD TEMPERATURE OUT OF RANGE – warning that analyzer internal temperature is excessive. VALIDATION FAILURE – a validation failure will trigger a warning; there are no settings associated with this. CHANNEL 2 FAULTS menu allows setting of various analyzer FAULT conditions.
<6 BASIC OPERATION> 6-11 VALVE CONTROL Typically used when the analyzer is configured with a flow cell in an offline application. VALVE CONTROL The valve control includes manual and automatic control. MANUAL – allows for manual ON/OFF control of the valve driver output signals. TIME SEQUENCE – allows automatic valve switching based on time sequence. It is normally used for measurement that needs stream switching. REMOTE OVERRIDE – allows remote valve control by digital contact.
<6 BASIC OPERATION> 6-12 ADVANCED CALIBRATE & VALIDATE MENU OFFLINE CALIBRATIONS – allows zero calibration, zero offset, span calibration, transmission adjustment, dark current calibration, and peak search. OFFLINE VALIDATIONS – allows manual or automatic configuration of check gases 1 through 3. ONLINE VALIDATIONS – DO NOT USE THIS FEATURE on TDLS220 OFFLINE CALIBRATIONS – use for all TDLS220 ZERO CALIBRATION – manual or automatic calibration of Zero.
<6 BASIC OPERATION> 6-13 ONLINE VALIDATIONS – DO NOT USE FOR TDLS220 ADVANCED DATA MENU ALARM HISTORY – shows chronological list of analyzer’s most recent alarms. CAL HISTORY – shows chronological list of analyzer’s recent calibrations.
<6 BASIC OPERATION> 6-14 6.3 Non-Process Parameters (required when Instrument Air Purging) Non-Process Parameters is the Yokogawa Laser Analysis Division term used to define regions of the optical path that may be purged with a gas containing the actual target (measured) gas. The most common application of this is to use Instrument Air (~20.9% O2) as the purge gas for analyzers measuring Oxygen in the process.
<6 BASIC OPERATION> 6-15 NON-PROCESS PATH LENGTH This is the optical path length inside the laser & detect measurement unit. Typical values would be 3.5” to 4” with the default value to use at 3.75”. Note that this dimension will vary between analyzers. Contact Yokogawa if unsure. NON-PROCESS PRESSURE This is the pressure of the non-process gas. Typically, this will be close to atmospheric pressure of 1.01BarA or 14.7PsiA. Check the actual operating conditions and enter the appropriate value.
<6 BASIC OPERATION> 6-16 6.4 Stream Switching & Valve Control Outputs The TDLS220 has three valve drivers (24VDC each @ 12W max each) terminated at TB-3. These can be used for either calibration/Validation and/or stream switching functions. If using these valve drivers for any type of Calibration/Validation function then please refer to the appropriate section of Instruction Manual. As shown in the following drawing, 3 process streams are connected to 3 gas valves then to the inlet of the TDLS220 flow cell.
<6 BASIC OPERATION> 6-17 There are 3 ways to control the valves: manual control in software, automatic valve change in time sequence and remote override though digital contact. The following software description defines how to configure the sequencing and timing of the valves when used in a stream switching configuration: ADVANCED CONFIGURE MENU The software setup for the stream switching is configured in Advanced Configure -> Valve Control.
<6 BASIC OPERATION> 6-18 Note: all three valves can be off at same time. TIME SEQUENCE The valves can be controlled automatically based on the time sequence. As an example of the left setting, Valve 1 stays on for 60 minutes before switching to Valve 2. By setting the Time Sequence of all 3 valves, the stream switching can be implemented continuously and periodically. REMOTE OVERRIDE Each valve can also be manually turned on by remote digital contact from control room or DCS.
<6 BASIC OPERATION> 6-19 6.5 Controlling the Analyzer Remotely or Locally via external PC/Laptop A number of methods is available to remotely control the TDLS220 analyzer.
<6 BASIC OPERATION> 6-20 6.5.2 Using Ultra-VNC Software Start the Ultra-VNC software by double-clicking on the “vncviewer.exe” ICON (as shown below): Within the VNC Server field, enter the correct IP address for the analyzer to which you are connecting then click on “Connect” button. If a successful connection is established then use the default password for entering the VNC connection screen is 1234 – see screen below that shows an example IP address of 10.0.200.
<6 BASIC OPERATION> 6-21 6.5.3 OPTIONAL Remote Interface Unit (RIU) The OPTIONAL RIU runs the Virtual Analyzer Controller (VAC) software described below. 6.5.
<6 BASIC OPERATION> 6-22 6.5.6 OPTIONAL Virtual Analyzer Controller (VAC) Operating Software Guide Once an Ethernet connection has been established, the VAC software can be started. To load the software on to a laptop or desktop PC, follow these steps: Create folder under c:\asiini Copy all files from the CDROM to this folder Create a shortcut from the desktop by browsing for the ASI-VAC.
<6 BASIC OPERATION> 6-23 C onfiguration C onfiguration - Options After selecting “Configuration – F4” you will be allowed to select the analyzer (with description and IP address) you wish to configure.
<7 ROUTINE MAINTENANCE> 7-1 7 Routine Maintenance The TDLS220 TDL analyzer requires little routine maintenance if it has been correctly installed, set-up and calibrated. This section will outline the routine maintenance procedures. Maintenance procedures require opening enclosures of certain modules. Make sure that there is no ingress of water or other liquids into the analyzer modules during these procedures. 7.
<7 ROUTINE MAINTENANCE> 7-2 Figure 17 - Mirror and Window Locations Mirror Removal for Cleaning or Replacement: Follow the precautions outlined in the “Thermal hazard” and “Chemical hazard” sections of the SAFETY chapter. If the flow cell becomes contaminated then it may be cleaned using the following procedure: • discontinue the process gas flow and initiate nitrogen (or instrument air) purge of the analyzer. • shut down the analyzer and disconnect from AC power supply.
<7 ROUTINE MAINTENANCE> 7-3 • Carefully remove all four fasteners and lock washers and the mirror mounting plate The mirror is not fastened or adhered to the mounting plate so during removal, keep the mounting plate tilted up-wards to prevent the mirror from falling out of the mounting plate • Visually inspect the mirror surface for any signs of contamination, dirt, deposits, films, oils, etc. If in any doubt about the quality of the mirror surface then cleaning is recommended.
<7 ROUTINE MAINTENANCE> 7-4 • Visually inspect the o-ring and replace if necessary. • Cleaning of the mirror should be performed as follows while taking great care not to scratch the surface of the mirror. • First, any loose impediments and dirt should be blown off the surface using a clean compressed gas source.
<7 ROUTINE MAINTENANCE> 7-5 • Using optical grade glass cleaner or IPA, wet the surface of a non-abrasive lint-free tissue. Place the wetted tissue on the surface of the mirror and drag across the mirror face in one direction only. Use a second clean, dry tissue and wipe in one direction only to dry the surface. Inspect for cleanliness and if necessary, repeat the process.
<7 ROUTINE MAINTENANCE> 7-6 Window Removal for Cleaning or Replacement: Follow the precautions outlined in the “Thermal hazard” and “Chemical hazard” sections of the SAFETY chapter. If the flow cell becomes contaminated then it may be cleaned using the following procedure: • Discontinue the process gas flow and initiate nitrogen (or instrument air) purge of the analyzer.
<7 ROUTINE MAINTENANCE> 7-7 • Using 7/64” Allen key carefully insert through the access holes and remove the four window retaining screws and lock washers – use long needle nose pliers to carefully hold each screw as it comes lose.
<7 ROUTINE MAINTENANCE> 7-8 THE WINDOW COULD BE HOT FROM THE HEATED CELL • This process wetted window is constructed of sapphire and is therefore more durable than the mirror surface. Use a clean, dry instrument air or nitrogen pressure (or canned air) supply to first blow off any particulate matter. • Using warm water and mild soap detergent, gently clean the window surface with a soft, non-abrasive cloth.
<7 ROUTINE MAINTENANCE> 7-9 • Once the window has been thoroughly cleaned, it should be re-installed using a reverse procedure as above. CAUTION! – Ensure the window is installed in the correct orientation with the stainless steel ring clamping the window onto the o-ring. Note the window holder holes a distinct hole pattern and can only fit in one rotational position on the cell.
<7 ROUTINE MAINTENANCE> 7-10 7.2 Analog Signal Field Loop Check 1. To perform a field loop check of the analog output signals, follow the software map below. Ensure properly calibrated multi-meter and read instructions fully before starting this operation. The Multi-meter on analog mode should be connected to the appropriate terminals and with correct polarity to prevent damage. 2. Software Map a. Advanced Menu i. Password ii. Block/Track/Hold iii.
<7 ROUTINE MAINTENANCE> 7-11 7.4 Validation and Calibration There are several methods that can be used to validate and/or calibrate the TDLS220 TDL analyzer. Generally, we recommend routine validation of the analyzer either on-line (if appropriately set-up) or offline. Actual calibration should only be performed if certain performance criteria have not been met during the validations and should only be performed by appropriately qualified personnel.
<7 ROUTINE MAINTENANCE> 7-12 Following the on screen directions, enter in the: Pressure= Cell Pressure Temperature= Cell Temperature Cell length= 40” Concentration of the target gas inside the gas flow cell. Press Enter to proceed. Wait for the reading to stabilize. Press 9 to proceed. AUTOMATIC OFFLINE VALIDATIONS The Offline Validations can also be automatically configured. Refer to section 5.5.3 for details. Local Initiate will start the automatic online validation sequence when selected.
<7 ROUTINE MAINTENANCE> 7-13 AUTOMATIC OFFLINE VALIDATION SETTINGS Please see below for detailed explanations of Validation Settings. There are several critical parameters that must be preconfigured in the TDLS220 software when using the automatic validation sequence. These parameters MUST be correctly set otherwise the analyzer will report false/incorrect validation results. • Check Gas Concentration specifies the concentration (ppm or %) of the gas within the offline flow cell.
<7 ROUTINE MAINTENANCE> 7-14 7.4.2 Off-Line Manual/Automatic Calibration To perform off-line calibration, the TDLS220 flow cell is already capable of being validated/calibrated in off-line mode. Using external switching valves or reconfigured tubing connections to allow the introduction of appropriate calibration gases 1 With the appropriate user interface, go to either Basic Menu (to Check Zero or Span) or Advanced Menu (to Check Zero or Span and/or perform actual Calibration).
<7 ROUTINE MAINTENANCE> 7-15 IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
<8 TROUBLESHOOTING> 8-1 8 Troubleshooting The TDLS220 TDL Analyzer troubleshooting is fairly simple for a process analyzer. First, virtually all components used in the system have a long Mean Time Between Failures (MTBF) with rated life of components typically exceeding 10 years (when operating within their stated specifications). Second, most probable failures and problems are diagnosed by the system, generating internal warning and fault conditions.
<8 TROUBLESHOOTING> 8-2 8.1 Common Troubleshooting Steps For most conditions the troubleshooting steps are common. In general, the most common issues with the analyzer revolve around ensuring an adequate amount of the laser light is received at the detector. Under any warning conditions it is recommended that the following steps are carried out prior to contacting YOKOGAWA. 8.1.1 On Process Gas or Zero Gas or Span Gas • Check Status LEDs.
<8 TROUBLESHOOTING> 8-3 • Record Results. Download data files from the analyzer for e-mail to Yokogawa Laser Analysis Division. 8.1.2 Trouble Shooting Procedure for Lost and/or Low Transmission For a TDL analyzer to function correctly there must be a suitable amount of the laser light reaching the detector.
<8 TROUBLESHOOTING> 8-4 Yokogawa Process Temperature out of range. The gas temperature range for the application is programmed into the analyzer. Check temperature transducer feed to analyzer from the heat trace controller Check to ensure software setting (Advanced Menu, Configure) is correct If operating outside of temperature range, a re-calibration may be required – contact Yokogawa Concentration out of range. The process pressure range for the application is programmed into the analyzer.
<9 DATA FILES AND FORMAT> 9-1 9 Data Files and Format The TDLS220 TDL analyzer is capable of automatically storing many important pieces of information. All the files are stored in simple ASCII text format for easy importing to MS Excel spreadsheets (or other data manipulation software as appropriate). The rate at which data is captured may be configured from within the TDLS220 software.
<9 DATA FILES AND FORMAT> 9-2 -------- alarms alarms calibr .cap .his .bak .his Capture These files are the individually named spectra that are “Captured” by the user at any given date or time during operation. Each file can have up to 8 numerals in its name which are entered at the time the “Capture” is performed. Example: 110307.cap 100008.cap Alarms History Alarm History - in the form of ASCII data files that can be opened with Microsoft “Notepad” as simple .txt file formats.
<9 DATA FILES AND FORMAT> 9-3 Calibration History Back-Up Calibration History - When the calibr.his file exceeds 100KB size the contents is saved to this .bak file and the .his file is emptied. This .bak file is in the form of ASCII data files that can be opened with Microsoft “Notepad” as simple .txt file formats. The content can then be copied and pasted into Microsoft Excel spread.
<9 DATA FILES AND FORMAT> 9-4 system .bak System History Back-Up A back-up of historical log of configuration changes System Configuration History - When the system.his file exceeds 100KB size the contents is saved to this .bak file and the .his file is emptied. This .bak file is in the form of ASCII data files that can be opened with Microsoft “Notepad” as simple .txt file formats. The content can then be copied and pasted into Microsoft Excel spread.
<9 DATA FILES AND FORMAT> 9-5 9.1 Configuring Data Capture: Select Data Select Record Result Data Select either User Data result or Factory Data. The default setting during normal operation is “User Data”. The system should only be switched to “Factory Data” when advised by Yokogawa Laser Analysis Division. Note: recording Factory Data is only for specific diagnostic purposes and should not be selected under normal operation.
<9 DATA FILES AND FORMAT> 9-6 To select the Spectrum capture, stay in Advanced Menu user mode and the Data sub section – select Spectrum Capture To store spectrum automatically, select Auto. If you do not wish to store any spectrum file during normal analyzer operation, then select Manual mode. Determine the rate at which you would like the analyzer to capture spectrum files and under what condition.
<9 DATA FILES AND FORMAT> 9-7 Determine whether or not the analyzer should capture spectrum files under a WARNING condition. Note: this may be useful to do so however, if the Warning alarm conditions are not set correctly then there could be excessive files created for less meaningful Warning alarm conditions. An example is a low transmission warning alarm set at 70% for an application that often runs at less than 70% transmission.
<9 DATA FILES AND FORMAT> 9-8 9.2 Downloading (Transferring/Exporting) the Data: All the files can be easily transferred from the analyzer to the supplied USB memory device. NOTES: Please use the supplied “SanDisk” USB memory device with when getting data from the analyzer. Each analyzer is supplied with one pre-tested USB memory devices – please retain them and use with each appropriate analyzer.
i 1 Manual Title: Model TDLS220 Tunable Diode Laser Spectroscopy Analyzer Start-up Manual Manual Number: IM 11Y01B02-01E-A Edition Date Remark (s) 1 April 2008 Newly Published 2nd Feb 2012 Revisions: Formatting was corrected 3rd June 2012 Revisions: 1. Format issues were corrected 2. Preface section was modified. 3. Safety Precautions section was added. 4. Quick Start section 1 was modified. 5. General Specifications section updated. 6.
Blank Page IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
Blank Page IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
4 Yokogawa Corporation of America North America 2 Dart Road, Newnan, GA 30265-1094, USA Phone: 800-258-2552 Fax: 770-254-0928 12530 West Airport Blvd., Sugar Land, TX 77478 Phone: 281-340-3800 Fax: 281-340-3838 Yokogawa has an extensive sales and distribution network. Please refer to the website (www. yokogawa.com/us) to contact your nearest representative. Mexico Melchor Ocampo 193, Torre C, Oficina 3”B” Veronica Anzures D.F., C.P. 11300 Phone: (55) 5260-0019, (55) 5260-0042 Yokogawa Canada, Inc.
