Teledyne 265A User's Manual
Contents
1. Lr Figure 1 1 3 PRINTED DOCUMENTS ARE UNCONTROLLED KE EL EA ERATION MAL ED ECK Removal of Shipping Screws amp Check for Correct Power TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 TX dx l Zu 1 2 uid S C3 TE wW LI 0 Zz ps CPI ry Z T ra 8 O Ra x i E x x n 4 A oy s 2 zZ H uU Qe KO Ld ee Zo Ne ran NE o lt er 3 c 7 x x 4 gt2. 1 on LJ Sal S Lu O ober QA EE EE E E i LEG TO Si nia Fa Le Liz 9i 1 x L DZ m Sto I I mun EMEN aman E 2 O al ze T l 1 I I oe A LL Lu BE Dt _ LE p ze W 1 x 1 Foz Cm O R 3E 2 a fe c ii 1 AM gt Za LJ n lt oa IT am mE E aa z BS o 1 Lr glues ong lect Les 3 E i Sek tea 2 J FFAS lt lt C FNNAALR m amp C 1 DE r T dirai m y I val uae O xf 2 T i2 Onubuo r o r Z SNNNMNI TI L s E EE Es Figure 4 2 Setup Menu Tree 21 PRINTED DOCUMENTS ARE UNCONTROLLED CAL HE NC PRE FFSET LT HNL TEST TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 THIS PAGE IS INTENTIONALLY LEFT BLANK 22 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 5 MAINTENANCE 5 1 Maintenance Schedule NOTE The operations outlined in this chapter are to be performed by qualified maintenance personnel only Table 5 1 Preventative Maintenance Schedule TEST functions See M200A manual Table 8 1 Zero Span calibration See M200A manual Table 8 1 Zero Span checks See M
3. STATUS TEMP PMT f FILTE RI sss Es AUTOZ ALVE SAMPLE MANIFOLI Figure 3 1 Block Diagram 16 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 NIFOLD JST E DELE ORIFICE Li 7j Ims Li Li e L L4 LL ASTI T z Gi n LUI TO Su i 2 E S no gt Eco 2 e 1O d Z 4 l ge LU I xai LU n C ES 7 Li gt gt lt Figure 3 2 Pneumatic Diagram 17 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 THIS PAGE IS INTENTIONALLY LEFT BLANK 18 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 SOFTWARE FEATURES The M265A software has two major operating modes The SAMPLE mode is the normal mode when the instrument is taking data The software menu that covers the SAMPLE mode is shown in Figure 4 1 When the instrument is initially installed a change of parameters is needed or di
4. LIST OF FIGURES FIGURE 1 1 REMOVAL OF SHIPPING SCREWS amp CHECK FOR CORRECT POWER 3 FIGURE 1 2 M265A REAR PANEL lola 4 FIGURE 1 3 INLET AND EXHAUST VENTING RECOMMENDATIONS 5 FIGURE 1 4 V F BOARD SWITCH 6 FIGURE 3 1 BLOCK DIAGRAM ia 16 FIGURE 3 2 PNEUMATIC DIAGRAM ilaria Ea Y ane pee aeo etae ne aident Neg 17 FIGURE 4 1 5 SAMPLE MENU TREE estat 20 FIGURE 422 SELUPNIEINU TRE Bn e ag Aa aus 21 LIST OF TABLES TABLE 2 1 M265A SPECIFICATIONS au a a epe AER PRSE ROI OR ao 11 TABLE 2 2 FINAL TEST AND CALIBRATION VALUES eere 13 TABLE 5 1 PREVENTATIVE MAINTENANCE SCHEDULE eee 23 iii PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 THIS PAGE IS INTENTIONALLY LEFT BLANK iv PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 1 GETTINGSTARTED 1 0 Overview The Model 265A is a close derivative of the Model 200A Chemiluminescence NOx Analyzer Because of this the Model 200A Instruction manual continues to be valid as a reference manual covering the details of the instrument s components procedures etc This manual addendum is intended as supplement to the model 200A manual Teledyne API part number 02246 and provides an overview
5. 0 596 of reading 10 sec per USEPA definition 20 sec per USEPA definition 500 50 cm min NO at 10 000 ppm 10 and 20 psi pressure 5 1 cm min 5 40 C 10 90 RH non condensing lt 0 1 per C lt 0 1 per V 7T x 17 x 23 6 18 cm x 43 cm x 61 cm 36 lbs 16 kg 16 lbs 7 kg 100 V 50 60 Hz 120 V 60 Hz 220 V 50 Hz 240 V 50 Hz 200 W 230 V 50 Hz 2 5A 110 V 60 Hz 220 V 50 Hz 240 V 50 Hz 295 W 230 V 50 Hz 2 5A Installation Category Over voltage Category II Pollution Degree 2 1 part in 2048 11 bit of selected voltage or current range 0 100 mV 0 1 5 10 V bipolar 4 20 mA isolated 12 status outputs from opto isolators 1 At constant temperature and voltage 2 Electrical ratings for CE Mark compliance 11 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 2 2 Warranty ADVANCED POLLUTION INSTRUMENTATION DIVISION T API 02024D wen 4473 Prior to shipment Teledyne API equipment is thoroughly inspected and tested Should equipment failure occur Teledyne API assures its customers that prompt service and support will be available COVERAGE After the warranty period and throughout the equipment lifetime Teledyne API stands ready to provide on site or in plant service at reasonable rates similar to those of other manufacturers in the industry All maintenance and the first level of field troubleshoot
6. 200A manual Table 8 1 Particulate filter See M200A manual Table 8 1 Reaction cell window See M200A manual Table 8 1 Nitric oxide flow Check TEST function every Section 1 3 month See also M200A manual Table 8 1 O flows Sample Flow Check TEST function every See M200A manual Table 8 1 month Pneumatic lines Examine every 12 months See M200A manual Table 8 1 clean if necessary Leak Check Check every year or after other See M200A manual Table 8 1 maintenance Reaction cell O rings Replace every 12 months See M200A manual Table 8 1 Other O rings Replace every 12 months See M200A manual Table 8 1 Factory calibration Calibrate each year or after See M200A manual Table 8 1 repairs 23 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 THIS PAGE IS INTENTIONALLY LEFT BLANK 24 PRINTED DOCUMENTS ARE UNCONTROLLED
7. BIL test function moving standard deviation for its minimum value 4 Press ZERO The ZERO button will be displayed once the concentration approaches zero 5 Press ENTR Pressing ENTR zeroes the instrument and actually changes both offset and slope of the equations to calculate concentration Press EXIT input M265A returns to the CAL menu Now allow span gas to Span gas flow through the instrument 7 Wait 10 min Wait for the O reading to stabilize at the span value watch STABIL Press SPAN The SPAN button should be displayed once the concentration approaches the span value In certain circumstances at low span gas concentrations both the ZERO and SPAN buttons will appear Do not press ZERO again when running span gas Press ENTR Pressing ENTR to span the instrument actually changes the equations so that the concentration displayed is the same as the expected span concentration you entered above thus spanning the instrument Press EXIT Pressing EXIT returns the instrument to SAMPLE mode Step 3 Review Quality of calibration Calibration Quality Check Procedure 8 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 Scroll the TEST The SLOPE value for O should be 1 0 4 0 3 If the SLOPE function menu until value is in the acceptable range the instrument will perform the O SLOPE is optimally displayed Scroll the TEST The M265A will d
8. EL 265A CHEMILUMINESCENCE OZONE ANALYZER ADDENDUM TO M200A INSTRUCTION MANUAL 02246 TELEDYNE INSTRUMENTS ADVANCED POLLUTION INSTRUMENTATION DIVISION 9480 CARROLL PARK DRIVE SAN DIEGO CA 92121 2251 TOLL FREE 800 324 5190 FAX 858 657 9816 TEL 858 657 9800 E MAIL api sales teledyne com WEB SITE www teledyne api com 03389 Rev B DCN 5254 Copyright 1999 2001 API Inc 15 December 2008 THIS PAGE IS INTENTIONALLY LEFT BLANK TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 SAFETY MESSAGES Your safety and the safety of others is very important We have provided many important safety messages in this manual Please read these messages carefully A safety message alerts you to potential hazards that could hurt you or others Each safety message is associated with a safety alert symbol These symbols are found in the manual and inside the instrument The definition of these symbols is described below GENERAL WARNING CAUTION Refer to the instructions for details on the specific danger CAUTION Hot Surface Warning CAUTION Electrical Shock Hazard Technician Symbol All operations marked with this symbol are to be performed by qualified maintenance personnel only Electrical Ground This symbol inside the instrument marks the central safety grounding point for the instrument CAUTION The analyzer should only be used for the purpose and in the manner described in this
9. F OR RELATED TO THIS AGREEMENT OF TELEDYNE API S PERFORMANCE HEREUNDER WHETHER FOR BREACH OF WARRANTY OR OTHERWISE TERMS AND CONDITIONS All units or components returned to Teledyne API should be properly packed for handling and returned freight prepaid to the nearest designated service center After the repair the equipment will be returned freight prepaid 12 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 2 3 Test and Calibration Values Table 2 2 Final Test and Calibration Values TEST Values s Units Nominal Range Reference Section umm nsn cm min 51 io di om oo soma _ 1 F lt C NOISE SAMP FLW NO FLOW p Lie di Ez r AUTOZERO o mV HVPS BEE DCPS o m RCELLTEMP BOX TEMP ERN PMT TEMP RCEL PRES NO PRES mV m m SE IN Hg A 2 10 constant IN Hg A 20 30 constant Electric Test amp Optic Test PMT Electric Test PMT Volts mV OPTIC TEST table continued mV 1000 d 13 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 Table 2 2 Final Test and Calibration Values Continued Parameter SEE Nominal Range Reference Section Os Span Conc Os Slope Noise at Zero Noise At Span
10. Measured Flows Factory Installed Options Option Installed PROM Serial Date Technician 14 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 3 THE M265A OZONE ANALYZER 3 1 Principle of Operation The Teledyne API Model 265A analyzer is designed to measure the concentration of ozone using the chemiluminescence reaction below The signal comes from the light emitted by the gas phase reaction of nitric oxide NO and ozone 03 as follows NO 0 gt NO 0 NO NO hv The reaction of ozone with NO results in electronically excited molecules as shown in the first equation The excited NO molecules release their excess energy by emitting a photon hv and dropping to a lower energy level as shown in the second equation It has been shown that the number of emitted photons is directly proportional to the O3 concentration in the reaction cell Periodically an AutoZero valve switches the sample stream to vacuum allowing the reaction cell to be evacuated and the analyzer to read zero background The AutoZero readings are subtracted from the concentration readings which improves zero baseline stability 15 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 KEYBOARD DISPLAY DIGA TA e STI ANALOG mm SUS urPurs Z PREAMI n i PUMI
11. Oz G5 2 7 v f d SL N4 DE O 7 gt 7 a Fh O lt gt gt WE 2 Figure 1 2 265 Rear Panel 4 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 UST EXCESS F IN CAL GAS CAL GAS VENT LINE TUBING FITTING MATERIAL 1 4 PTFE scia esa LASS STAINLESS STEEL NL Y SPHERIC CALIBRATION GAS INLET LINE lt A SUPPLY LINE METERS MAXIMUI X NMAXIMUM LENGTH XHAUST LINE 1 4 PTFE METERS MAXIMUM LENGTH x REGULATOR SV NI gt EXHAUST UTSIDE ENCI Figure 1 3 Inlet and Exhaust Venting Recommendations 5 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 SHOVLIOA l139HVl 3LYNIXOUdAY 4430 1NO 39NvHH3AO NIYS NV IOdINf 0 7 NO NvlOdlg SONILLIS HOLIMS Zld
12. Teledyne API Model 265A Chemiluminescence Ozone Analyzer Manual Addendum 03389 Rev B DCN 5254 HIGHLIGHTS The purpose of this Highlights Page is to list the changes that were incorporated into this Manual per DCN 5254 Chapter Page Number Description Title Page e Changed Revision number and date e Changed address e Added DCN number to footer e Removed Revision letter referenced to instruction manual Text All Pages e Changed Revision number and date e Added DCN to all footers of Text P N 03389B e Added PRINTED DOCUMENTS ARE UNCONTROLLED to all footers of Manual P N 03389B e Updated List of Figures in TOC 1 1 e Removed Revision letter referenced to instruction manual 2 12 e Changed Revision number and date Updated Warranty Section Under Warranty changed Revision Letter Under General Section removed first paragraph and replaced with During the warranty period T API warrants each Product manufactured by T API to be free from defects in material and workmanship under normal use and service Expendable parts are excluded 2 13 e Table 2 2 changed the BOX TEMP from 8 48 C to 8 40 C e Table 2 2 changed the PMT TEMP from 7 2 C to 842 C PRINTED DOCUMENTS ARE UNCONTROLLED THIS PAGE IS INTENTIONALLY LEFT BLANK Mai TELEDYNE fA INSTRUMENTS Advanced Pollution Instrumentation A Teledyne Technologies Company MANUAL ADDENDUM MOD
13. agnostics is indicated the SETUP menu is used which is shown in Figure 4 2 19 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 NT PANEL DISPLAY FR API MODEL 2 CTURE TR MEN SAMPLE LL 1 STE sE o d Oo dd LU ane Lu X Sal DEA lt ia a C2 5 Ll NC ZIO Lu i az TE Z L d CS ex TUS WEN pM a i ae ER is Ge ae ca a gt EA Pdf e LJ i ia El rb pe zr pw Lu La C5 ZZ OX gt a I TE 2 fale Llc LIO m DA p Ut G6 JC Y LIO m FA i CS LJ 0 a 1 nia AH I ae pie o Z L 2 5 LO Feo ci dee X 1 W ls N Lul wens h x 21 ee ate fo 7 S ZA mm A Lu gt uj 0 ul fell NI ee AU L E TSO b LL UL E RGF py Da DI 2 2 lt D M 24 ZTL C Figure 4 1 Sample Menu Tree 20 PRINTED DOCUMENTS ARE UNCONTROLLED NI TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 ONT PANEL DISPLAY FI PI MODEL TURE P MEN
14. ing is to be performed by the customer NON API MANUFACTURED EQUIPMENT Equipment provided but not manufactured by Teledyne API is warranted and will be repaired to the extent and according to the current terms and conditions of the respective equipment manufacturers warranty GENERAL During the warranty period T API warrants each Product manufactured by T API to be free from defects in material and workmanship under normal use and service Expendable parts are excluded If a product fails to conform to its specifications within the warranty period Teledyne API shall correct such defect by in Teledyne API s discretion repairing or replacing such defective product or refunding the purchase price of such product The warranties set forth in this section shall be of no force or effect with respect to any product i that has been altered or subjected to misuse negligence or accident or ii that has been used in any manner other than in accordance with the instruction provided by API or iii not properly maintained THE WARRANTIES SET FORTH IN THIS SECTION AND THE REMEDIES THEREFORE ARE EXCLUSIVE AND IN LIEU OF ANY IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR PARTICULAR PURPOSE OR OTHER WARRANTY OF QUALITY WHETHER EXPRESSED OR IMPLIED THE REMEDIES SET FORTH IN THIS SECTION ARE THE EXCLUSIVE REMEDIES FOR BREACH OF ANY WARRANTY CONTAINED HEREIN TELEDYNE API SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT O
15. isplay the OFFSET parameter for the function menu until equation This number should be near zero A value of 0 0 the O OFFS is 50 indicates calibration in the optimal range displayed Step 4 The M265A is now ready to measure sample gas 9 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 THIS PAGE IS INTENTIONALLY LEFT BLANK 10 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 2 SPECIFICATIONS WARRANTY 2 1 Specifications Ranges Measurement Mode Measurement Units Noise at zero Noise at span Lower Detectable Limit Zero Drift 24 hours Span Drift 24 hours Linearity Precision Lag Time Rise Fall Time Sample Flow Rate Reagent Gas Reagent Flow Temperature Range Humidity Range Temperature Coefficient Voltage Coefficient Dimensions H x W xD Weight Analyzer Weight Pump Pack Power Analyzer Power Analyzer Power Ext Pump Power Ext Pump Environmental Analog Resolution Analog Output Ranges Current Loop Option Status Table 2 1 M265A Specifications In 1 ppb increments from 100 ppb to 20 000 ppb Single range or AutoRange ppb ug m 0 3 ppb per USEPA definition 0 596 of reading RMS per USEPA definition above 100 ppb 0 6 ppb per USEPA definition 1 0 ppb lt 1 of reading or 1 ppb whichever is greater lt 1 of full scale
16. l 6dl INIOd 1531 gt Andino SONILI3S JHL 3AVH Z Z L Figure 1 4 V F Board Switch Settings PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 1 3 Initial Operation 1 Turnon the instrument power The display should immediately light showing the computer s memory configuration then the instrument type M265A A diagram of the software menu trees can be found in Figure 4 1 and Figure 4 2 2 On power up an internal solenoid valve will open allowing NO to flow Check the NO FLOW test function on the front panel to verify that the flow is 5 cm min 20 If the flow is out of this range check the inlet pressure at the rear panel and make sure that it is 20 psi then adjust the pressure regulator on the rear panel until the flow is within range 3 The M265A requires about 30 minutes for all internal components to heat to operating temperature Many warning conditions are not displayed during this time even though some parameters are out of specification All warning messages are enabled after 30 minutes of operation 4 When the instrument is warmed up check the TEST functions of the readings should compare closely with those in Table 2 2 5 Next is instrument calibration
17. manual If you use the analyzer in a manner other than that for which it was intended unpredictable behavior could ensue with possible hazardous consequences i PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 SAFETY dai TABLE OF CONTENTS siglata liane II 1 GELFING STARTED ellenica ai 1 TOF OVELVIEW EEE 1 Mea Ke Se alle alii Ia 1 1 2 Electrical and Pneumatic Connections 2 T3 su ieu doa deese deett e chri etr mor aduer d a aa T 1 4 Instrument Calibration cls ees Osa alee est AER 7 2 SPECIFICATIONS WARRANT Y 11 CAI PRA OR ER 11 Tu Du TER RN Cae eed RN S 12 2 3 Fest and Calibration ValgeSz su uu aaa 13 3 THE M265A OZONE ANALYZER 15 3 1 Principle Of as eeu oe o maqaam anata ee Aoc ai 15 4 SOFTWARE FEA TURES 19 SMAINTENANCE i debian ai 23 5 Maintenance schedule au a Saa lo ale Lola a 23 ii PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254
18. of the instrument and the details of the features and functions that are specific to the 265A 1 1 Unpacking CAUTION Your safety and the safety of others is very important We have provided many important safety messages in this manual Please read these messages carefully To avoid personal injury always use two persons to lift and carry the Model 265A 1 Before operation it is necessary to remove the shipping hold down screws Remove the instrument cover then remove three screws painted red as shown in Figure 1 1 Please remember if shipping or transporting the instrument to another site the shipping screws must be re installed to prevent damage to the sensor 2 Also check for internal shipping damage and generally inspect the interior of the instrument to make sure all circuit boards and other components are in good shape and properly seated 3 Please check the voltage and frequency label on the serial number tag on the rear panel Compare that to your local power before plugging the instrument into an outlet 1 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 1 2 Electrical and Pneumatic Connections 1 See Figure 1 2 and Figure 1 3 to locate the rear panel electrical and pneumatic connections Attach the pump to the Exhaust Out port on the instrument rear panel The exhaust from the pump should be vented to atmosphe
19. ric pressure and out of the room because of its NO content Attach the sample inlet line to the sample inlet port The pressure of the sample gas at the inlet port should be at ambient pressure and constant See Figure 1 3 Attach a cylinder with 10 000 ppm 10 of nitric oxide NO in nitrogen N2 with an appropriate pressure regulator to the 1 8 SS port on the rear panel as shown in Figure 1 2 The cylinder s pressure regulator should be set to deliver gas at 20 PSIG 10 Attach the analog output connections to a strip chart recorder and or data logger See Figure 1 2 for connector pin out definitions See Figure 1 4 for V F board switch settings Factory default setting is 0 5 VDC Connect the power cord to the correct line voltage WARNING Analyzer Exhaust Contains Nitric Oxide Gas Vent pump exhaust to a well ventilated area at atmospheric pressure WARNING Lethal voltages present inside case Do not operate with cover off during normal operation Before operation check for correct input voltage and frequency Do not operate without proper chassis grounding Do not defeat the ground wire on power plug Turn off analyzer power before disconnecting electrical subassemblies 2 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254
20. which is shown in the following tables 1 4 Instrument Calibration Step 1 Set the range then enter the expected ozone span gas concentrations 1 Press This key sequence causes the M265A to prompt for the CAL CONC expected span concentration Enter the span value by pressing the key under each digit until the expected value is set 2 Press ENTR ENTR stores the expected span value The internal formula is adjusted to compute this number when span gas concentration Is input into the instrument Press EXIT Returns instrument to SAMPLE mode Press If necessary you may want to change the range mode SETUP RNGE Choices are either Single or AutoRange Normally the MODE SNGL instrument is shipped in Single range mode Press After the mode is set you may want to set the maximum SETUP RNGE range value The instrument is shipped with the range set at SET 500 ppb This setting affects only your analog outputs not the RS 232 output 7 PRINTED DOCUMENTS ARE UNCONTROLLED TAPI Model 265A Chemiluminescence Ozone Analyzer Manual Addendum Rev B DCN 5254 Step 2 Calibrate the instrument Zero Span Calibration Procedure 1 Input zero gas Allow zero gas to enter the sample port on the rear of the instrument Press CAL The M265A enters the calibrate mode from sample mode 3 Wait 10 min Wait for reading to stabilize at the zero value If you wait less than 10 minutes the final zero value may drift You may want to watch the STA
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