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Manual Teledyne 7500ZA

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  • Teledyne 7500ZA - page 1

    Teledyne Analytical Instruments OPERA TING INSTRUCTIONS FOR Model 7500ZA NDIR Infrared Gas Analyzer DANGER Toxic gases and or flammable liquids may be present in this monitoring system. Personal protective equipment may be requi red when servicing this inst rume nt. Hazardous voltages exist on certain co m ponents internally which may persist for a ...

  • Teledyne 7500ZA - page 2

    Model 7500ZA Teledyne Analytical Instruments ii Copyright © 2014 Teledyne Analytical Instruments All Rights Reserved. No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language or computer language in whole or in part, in any form or by any means, whether it be electronic ...

  • Teledyne 7500ZA - page 3

    NDIR Gas Analyzer Teledyne Analytical Instruments iii S pecific Model Information It is not recommended that th is in strument be used for analysis on any other gas or gas mixture than that specified at the time of purchase. The analyzer is set up and calibrate d at the factory for a specific application using a known gas mixtur e that is represent ...

  • Teledyne 7500ZA - page 4

    Model 7500ZA Teledyne Analytical Instruments iv Safety Messages Your safety and the safety of others is very important. We have provided many important safety m essages in this manual. Please read these messages carefully. A safety message alerts you to pot ential hazards that could hurt you or others. Each safety message is a ssociated with a safe ...

  • Teledyne 7500ZA - page 5

    NDIR Gas Analyzer Teledyne Analytical Instruments v IF YOU USE THE ANALYZER IN A MANNER OTHER THAN THAT FOR WHICH IT WAS INTEND ED, UNPREDICTABLE BEHAVI OR COULD RESULT POSSIBLY ACCOMPANIED WITH HAZARDO US CONSEQUENCE S. This manual provides informati on designed to guide you through the installation, calibration operati on and maintenance of your ...

  • Teledyne 7500ZA - page 6

    Model 7500ZA Teledyne Analytical Instruments vi Additional Caution on Safety To operate the analyzer properl y, be sure to read “Caution on Safety” carefully. The descriptions listed here provide important information on s afety . Be sure to observe th em at all tim es. Th ese safety p recau tions are classified into 3 levels: “DANGER,” “ ...

  • Teledyne 7500ZA - page 7

    NDIR Gas Analyzer Teledyne Analytical Instruments vii The gas analyzer is heavy. To transport the analyzer, please use a hand cart or eq uivalent. Avoid carrying analyzer by hand as much a s p ossible. Doing so may cause injury. Take care not to let cable chips a nd othe r foreign objects enter the unit during installation work. Otherwise, fire, fa ...

  • Teledyne 7500ZA - page 8

    Model 7500ZA Teledyne Analytical Instruments viii the ratings of the instrument. Otherwi se, electric shock or fire may result. Be sure to connect a power supply of correct rating. Otherwise, fire may result. Caution on use DANGER Be sure to read the instruction manual for reference g ases before handling re ference gases such as ca libration gas t ...

  • Teledyne 7500ZA - page 9

    NDIR Gas Analyzer Teledyne Analytical Instruments ix CAUTION Be sure to observe the following to perform work safely, avoiding electric shock or inju ry. Remove the watch and other metallic o bjects before work. Do not touch the instrument with wet han ds. If the fuse is blown, eliminate the cause and replace it with the one of the same capacity an ...

  • Teledyne 7500ZA - page 10

    Model 7500ZA Teledyne Analytical Instruments x T able of Content s Specific Model In formation ......................................................... iii  Safety Me ssages .......................................................................... iv  Additional Cauti on on Safe ty ...................................................... vi ? ...

  • Teledyne 7500ZA - page 11

    NDIR Gas Analyzer Teledyne Analytical Instruments xi Display And Operat ion Pane ls ................................................... 27  5.1 Front Panel Description 27  5.2 Overview of Display and Operation Panels 29  5.3 Outline of Display Screen 30  5.4 Basic Operation 34  Settings and Ca libration .............................. ...

  • Teledyne 7500ZA - page 12

    Model 7500ZA Teledyne Analytical Instruments xii 6.7.2 Error Log screen 68  6.7.3 Calibration Log screen 69  6.7.4 Output Adjustment Screen 70  6.7.5 Other Parameter 71  6.8 Calibration 73  6.8.1 Zero Calibration 73  6.8.2 Span Calibration 74  7. Mainte nance ..................................................................... ...

  • Teledyne 7500ZA - page 13

    NDIR Gas Analyzer Teledyne Analytical Instruments xiii 9.3 Code Symbols 106  9.4 Outline Diagram 109  ...

  • Teledyne 7500ZA - page 14

    Model 7500ZA Teledyne Analytical Instruments xiv List of Figures Figure 2-1A: Model 7500Z A Front P anel ......................................... 4  Figure 2-1B: Model 7500Z A Rear Panel ......................................... 5  Figure 7-1: Measuring Unit C onfiguration (P ipe Cell) .................... 79  Figure 7-2: Measuring Unit C ...

  • Teledyne 7500ZA - page 15

    NDIR Gas Analyzer Teledyne Analytical Instruments xv List of T ables Table 7.1 Maintenance and Check Table ...................................... 76  Table 8-1: Erro r Messages ............................................................ 85  ...

  • Teledyne 7500ZA - page 16

    Model 7500ZA Teledyne Analytical Instruments xvi DANGER COMBUSTIBLE GAS USAGE WARNING This is instrument is approved as an intrinsically safe gas analyzer for use in a category (ia) Group IIC hazardous area. This approval only to the equi pment specified installed in accordance with the informati on contained within this manual. It is the customer& ...

  • Teledyne 7500ZA - page 17

    NDIR Gas Analyzer Introduction Teledyne Analytical Instruments 1 Introduction 1.1 Overview The Model 7500ZA is designed to measure the concentration of NO, SO 2 , CO 2 , CO and CH 4 in a sample gas based on the principle that different atomic molecules have a di fferent absorption spectrum in the infrared band and the intensity of absorption is det ...

  • Teledyne 7500ZA - page 18

    Introduction Model 7500ZA Teledyne Analytical Instruments 2 1.2 T ypical Applications The Model 7500ZA is a microprocesso r based analyzer with a large LCD display, superior accuracy and a multitude of functions suitable for a variety of applica tions including: • Combustible gas emissions from boilers or incinerators • Steel gas analysis (blas ...

  • Teledyne 7500ZA - page 19

    NDIR Gas Analyzer Items Included with Analyzer Teledyne Analytical Instruments 3 Items included with the Analyzer 2.1 Confirmation of delivered items • The following items are included with you analyzer. Analyzer Fuse (2pcs)) Std: IEC127-2 05x20 mm 250V/2A SB Analog Output Connector (1) 25 pin D-sub male M2.6x4 mm Instruction Manual External Inpu ...

  • Teledyne 7500ZA - page 20

    Items Included with Analyzer Model 7500ZA Teledyne Analytical Instruments 4 RS-484 Connector (1) (when provided with communicatio ns function) 9 pin D-sub connector mal e M2.6 x 4 mm Ferrite Core (1) for power cable (When terminal blo ck for power supply is specified) Power Supply Cord (1) (when powe r in put is specified) • 2.2 Name and Descript ...

  • Teledyne 7500ZA - page 21

    NDIR Gas Analyzer Operation Teledyne Analytical Instruments 5 Figure 2-1B: Model 7500ZA Rear Panel ...

  • Teledyne 7500ZA - page 22

    Items Included with Analyzer Model 7500ZA Teledyne Analytical Instruments 6 [Blank page] ...

  • Teledyne 7500ZA - page 23

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 7 Inst allation Installation of the Model 7500Z A NDIR Analyzer includes:  Unpacking  Mounting  Gas connections  Electrical connections  Calibration DANGER: THIS UNIT IS NOT AN EXPLOSION-PROOF INSTRUMENT. DO NOT USE IT IN A PLACE WITH EXPLOSIVE GASES TO PREVENT EXPLOSI ON, ...

  • Teledyne 7500ZA - page 24

    Installation Model 7500ZA Teledyne Analytical Instruments 8 3.1 Inst allation Conditions To install the analyzer fo r optimum perform ance, select a location that meets the following conditions; 1. This instrument is designed for rack mounting in a standard 19” equipment rack. 2. Indoor use only. 3. Vibration-free. 4. Free of dust and debris and ...

  • Teledyne 7500ZA - page 25

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 9 • The analyzer weight must be supported at the bottom of the casing. • The analyzer should be instal led in a place where ambient temperature is within -5 to 45°C (max. 40°C when two optical units are used, and the power supply is more than 200V AC), and temperature fluctuation d ...

  • Teledyne 7500ZA - page 26

    Installation Model 7500ZA Teledyne Analytical Instruments 10 • Entry of dust into the instrum ent may result in poor performance. Use clean tubing and couplings. • Sample inlet: Attach clean, dry sample gas to th e inlet port. Note that the calibration gases ( z ero and span) also connect to this port. Input gas flow t should be constant within ...

  • Teledyne 7500ZA - page 27

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 11 Correspondence between measured components and the optical units is as follows: Measured Components Optical Ben ch 1 Optical Bench 2 Single measured species: NO, CO 2 , CO or CH 4 Single component None Two measured species: CO 2 , CO CO 2 /CO None Two measured species: NO/CO, NO/SO 2 ...

  • Teledyne 7500ZA - page 28

    Installation Model 7500ZA Teledyne Analytical Instruments 12 3.4 Sampling 3.4.1 Sample Gas Conditioning 1. Dust from the sampling gas should be com pletely removed using a filter. For the final stage f ilter, use a filter that rem oves dust particles down to 0.3µm. 2. Dew point must be lower than the ambient temperature. If vapor is contained in t ...

  • Teledyne 7500ZA - page 29

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 13 Without O 2 Sensor Built-in O 2 Sensor External O 2 Sensor measurement. of 90 to 100% on the measuring range 90 to 100% on the measuring range. 90 to 100% on the measuring range. Span gas for O 2 measurement — Gas with conc. of 90 to 100% on the measuring range or atmospheric air (2 ...

  • Teledyne 7500ZA - page 30

    Installation Model 7500ZA Teledyne Analytical Instruments 14 3.4.6 Example Configurat ion of Sample System The following illustrates a typical s ample system configuration for five component gas measurem ent mo nitoring a combustion exhaust gas from boiler, refuse incinerato r, etc. Contact TAI for other system conf igurations to m atch your specif ...

  • Teledyne 7500ZA - page 31

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 15 Name Description Nam e Description (5) Electronic gas cooler Dries the moisture in the sample gas to a dew point of approx. 2°C measuring the oxygen concentr ation in sample gas. (Not used when O 2 sensor is built-in.) (6) Solenoid valve Used for flowing the calibration gas. (7) Memb ...

  • Teledyne 7500ZA - page 32

    Installation Model 7500ZA Teledyne Analytical Instruments 16 (1) Power Supply (standa rd terminal 1 to 2) Connect the power supply to the pow er terminal, and connect the ground wire to the grounding terminal (standar d terminal 3). Be sure to provide a protective earth connection. Use so lderless terminals (for M4) for connection to the terminals ...

  • Teledyne 7500ZA - page 33

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 17 (2) Analog output signal: Analog output connector (A/O) Output signal : 4 to 20 mA DC or 0 to 1 V DC (selected when ordering) Minus lines for the insulation and signal are common from the ground and internal circuit. Allowable load : 4 to 20 mA DC, 550 Ω or less 0 to 1 V DC, 100k ? ...

  • Teledyne 7500ZA - page 34

    Installation Model 7500ZA Teledyne Analytical Instruments 18 • Used when the external zirconia O 2 sensor or the external O 2 sensor is ordered. It is not requir ed or used if the analyzer has a built-in O 2 sensor. • Connect the dedicated connector ( accessory) to the output of the external zirconia sensor or the extern al O 2 sensor (shipped ...

  • Teledyne 7500ZA - page 35

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 19 (4) Contact input/output (DIO): digital input/output connector (DIO 1 to 3) Contact input signal : Vo ltage is app lied from the external 1 2 to 24 V DC, max 15mA. Photo-coupler isolation (from each DI and ground) Contact capacity : C contact relay output 24V/1A AC/DC resistive load ...

  • Teledyne 7500ZA - page 36

    Installation Model 7500ZA Teledyne Analytical Instruments 20 ...

  • Teledyne 7500ZA - page 37

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 21 • Isolated output (from each DO and ground) To avoid external interference, the wiring from the analog output signal, O 2 sensor input and contact input should be run separately from that of power supply and contact output. Note: Avoid excess noise generated by other nearby equipmen ...

  • Teledyne 7500ZA - page 38

    Installation Model 7500ZA Teledyne Analytical Instruments 22 2. Automatic calibration: (See also Section 6.4: Automatic Calibration Settings ) ...

  • Teledyne 7500ZA - page 39

    NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 23 [Blank page] ...

  • Teledyne 7500ZA - page 40

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  • Teledyne 7500ZA - page 41

    NDIR Gas Analyzer Operation Teledyne Analytical Instruments 25 Operation 4.1 Prep aration for operation Tube and wiring check • Double-check if tubes of the ga s sampling and exhaust ports are correctly connected. • Double-check for proper wiring. 4.2 W arm-up Operation and Normal Operation (1) Operation Procedure 1. Turn ON the power switch on ...

  • Teledyne 7500ZA - page 42

    Installation Model 7500ZA Teledyne Analytical Instruments 26 [Blank page] ...

  • Teledyne 7500ZA - page 43

    NDIR Gas Analyzer Displa y and Operation Panels Teledyne Analytical Instruments 27 Display And Operation Panels This section describes the disp lay unit and operation panel on the Model 7500ZA as well as the various functions available to the user. 5.1 Front Panel Description Display unit: The measurement screen and the se tting items are displayed ...

  • Teledyne 7500ZA - page 44

    Display and Operation Panels Model 7500ZA Teledyne Analytical Instruments 28 Name Description Name Description (1) MODE key Used to switch the mode. (5) ESC key Used to return to the previous screen or cancel the setting midway. (2) SIDE key Used to change the selected it em (b y moving the cursor) and the numeral digit. (6) ENT key Used for confir ...

  • Teledyne 7500ZA - page 45

    NDIR Gas Analyzer Displa y and Operation Panels Teledyne Analytical Instruments 29 5.2 Overview of Display and Operation Panels ...

  • Teledyne 7500ZA - page 46

    Display and Operation Panels Model 7500ZA Teledyne Analytical Instruments 30 5.3 Outline of Display Screen (1) Measurement mode screen (appears when the power is turned on) The measurement screen depends on the num ber of components. The following screen configuration is shown as an example for NO, SO 2 , CO 2 , CO and O 2 (output: 12 channels). Sc ...

  • Teledyne 7500ZA - page 47

    NDIR Gas Analyzer Displa y and Operation Panels Teledyne Analytical Instruments 31 • O 2 corrected concentration values: • Ch components in which “cv**” is displayed as “cv CO” in the display are calculated values derived from the following equation. Refer to Section 6.7 Maintenance Mode - Other Parameter. where: O n : The value of the ...

  • Teledyne 7500ZA - page 48

    Display and Operation Panels Model 7500ZA Teledyne Analytical Instruments 32 (2) Setting/Selection Screen The setting/selection screen is configured as shown below: • In the status display area, the current display item is displayed. • In the message display area, me ssages associated with operation are displayed. • In the setting item and se ...

  • Teledyne 7500ZA - page 49

    NDIR Gas Analyzer Displa y and Operation Panels Teledyne Analytical Instruments 33 (3) Contents of Measured Channel (Ch) The following table gives measurem ent channels and their contents according to the sym bols. • ...

  • Teledyne 7500ZA - page 50

    Display and Operation Panels Model 7500ZA Teledyne Analytical Instruments 34 5.4 Basic Operation  Measurement mode The measurement m ode can display up to 5 channels in a single sc reen. If 5 channels or more are to be displayed in a single screen, press the UP or DOWN key to scroll the channels one by one. • • • • • User mode displays ...

  • Teledyne 7500ZA - page 51

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 35 Settings and Calibration 6.1 Range Switch 6.1.1 Setting the Range Switch Mode The range switch has three modes: • Manual (MR) • Remote (RR) • Auto Ranging (AR) To set the range switch mode: 1. Press the MODE key while in measurement m ode to display the User mode sc ...

  • Teledyne 7500ZA - page 52

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 36 6.1.2 Manual Range Mode The analysis range for the measur ed component can be switched manually as follows: 1. (1) Select “MR” as range switch mode, and then press the ENT key. 2. Using the UP/DOWN keys, move the cursor to the desired range selection. The highlighted arrow ...

  • Teledyne 7500ZA - page 53

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 37 6.2 Calibration Setting This mode is used to set calibration param eters such as span and zero gas concentration, calibration range, and auto calibration settings and range. When <User Mode> The “Calibration Parameters ” screen that appears, the data shown at ri ...

  • Teledyne 7500ZA - page 54

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 38 4. Enter calibration gas co ncentrati on for zero and span. Use the UP or DOWN key to increment or decrement the displayed value one digit at a time. When the correct num ber is displayed for that digit, use the SIDE key to move to the next digit and repeat the increment/decre ...

  • Teledyne 7500ZA - page 55

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 39 1. Select < User mode > → < Calibration param eters > → < Zero calibration >. The Zero Calibration screen will appears as shown. 2. Select the Ch you want to change using the UP or DOWN key and then press the ENT key. The setting content becomes high ...

  • Teledyne 7500ZA - page 56

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 40 6.2.3 Setting the Calibration Range This mode is used to set whethe r the channels use one or both of the calibration ranges. 1. From the Calibration Par ameters screen, select Calibr ation Range. The following screen appears. ...

  • Teledyne 7500ZA - page 57

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 41 2. Select the Ch you want to cha nge by pressing the UP or DOWN key, then press the ENT key. The setting content is highlighted. 3. Toggle between “both” or “current” using the UP or DOWN key.  If “both” is selected, zero or span calibration will be perform ...

  • Teledyne 7500ZA - page 58

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 42 6.2.4 Setting the Component/Range for Auto Calibration In this section you can select the Ch (component) and the range to calibrate on for those components th at have the auto ranging (AR) feature enabled. 1. From the User Mode screen select < Calibration parameters > ? ...

  • Teledyne 7500ZA - page 59

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 43 The range identification contact is interlock ed with the range after the switch. However, if the hold setti ng is set to “ON,” the contact status before calibration is maintained. 5. Press the SIDE key in the state described in (3), and the highlight is toggled betwe ...

  • Teledyne 7500ZA - page 60

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 44 6.3 Alarm setting 6.3.1 Setting Alarm Parameters The High/Low limit concentration alarms are user adjustable. Five different alarm contact outputs can be used. The setting range is 0- 100% full scale for each range. To change the alarm setting, set the alarm ON/OFF setting to ...

  • Teledyne 7500ZA - page 61

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 45 Alarm Setting Descriptions The alarm contact number can be assigned to any channel. Channels can also have multiple alarm s assigned to them. Channel: Channel setting targeted for alarm. H-Limit value: Sets the high lim it value (concentration) for alarm. L-Limit value: S ...

  • Teledyne 7500ZA - page 62

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 46 6.3.2 Hysteresis Setting The alarm hysteresis can be set or changed to preven t chattering of an alarm output about its alarm set po int. To set or change the alarm hysteresis: 1. Navigate to the “Alarm Setting” screen and then move the cursor to “Hysteresis” using the ...

  • Teledyne 7500ZA - page 63

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 47 6.3.3 Peak Alarm Setting When the peak number of times CO concentration exceeds th e upper limit value during m easurement reaches the set number, an alarm is provided. The peak alarm and th is setting screen appear only when an option is added. 1. Press the MODE key whil ...

  • Teledyne 7500ZA - page 64

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 48 Setting Range Alarm value: 10-1000 ppm → 5 ppm step (initial value: 500 ppm ) Alarm count: 1- 99 times/hr → (initia l value: 5 times) Hysteresis : 0-20 % FS → (initial value: 0% of full scale) [% FS] represents the percentage with the CO range regarded as 100%. Action of ...

  • Teledyne 7500ZA - page 65

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 49 Releasing peak count alarm To release the peak count alarm, set the peak alarm to OFF. Turning on the peak alarm initiates the count at 0. 6.4 Setting Up the Auto Calibration 6.4.1 Auto Calibration Auto calibration is autom atically carried out at the tim e when zero span ...

  • Teledyne 7500ZA - page 66

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 50 • Cycle : The period between the st art time of one calibration and the next (unit: hour/day) • Flow Time : The time required for purging with calibration gas. Time required for replacement of sample gas after the calibration is completed (Set by ca librati on gas. See the ...

  • Teledyne 7500ZA - page 67

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 51 Auto calibration status contact output is closed during auto calibration (NO side), and is open in other cases. Example: Start Time Sun 12:00 Cycle 1 day Flow Time Zero 350 sec CH 1 Span 350 sec CH 2 Span 350 sec CH 3 Span 350 sec CH 4 Span 300 sec CH 5 Span 300 sec Ex. T ...

  • Teledyne 7500ZA - page 68

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 52 Caution: When an auto calib ration starts, the measurement screen appears automatically. Any operation other than “Stop Auto Calibration” (see Item 6.4.2) is no t permitted during auto calibration. “Stop Auto Calibration” cannot be performed with the key lock to ON. To ...

  • Teledyne 7500ZA - page 69

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 53 confirm the execution of auto ca libration. Press the ENT key to execute the auto calibration or press the ESC key to cancel. 6.4.2.2 F ORCED STOP OF AU TO CA LIBRA T ION This mode is used to stop the auto calibration forcibly. 1. In the “Set Auto Cal” screens point t ...

  • Teledyne 7500ZA - page 70

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 54 Caution: During an auto calibration, all key operations are not permitted other than key lock ON/OFF and “Auto Calibration Stop.” When the key lock is ON, the “Auto Calibration Stop” is locked out as well. To stop “Auto Calibration” forcedly, set the key lock to OF ...

  • Teledyne 7500ZA - page 71

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 55 6.5 Setting Auto Zero Calibration 6.5.1 Auto Zero Calibration Zero calibration can be performed automatically using the s ettings applied in this screen. The channels for which auto calibration is to be performed are determined by the auto calibration settings described i ...

  • Teledyne 7500ZA - page 72

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 56 • Flow Time: The time required for purging with calibration gas. Time required for replacement of sample gas after the calibration is completed (Set by ca librati on gas. See the next page.) • ON/OFF: Turns the auto calibration feature ON or OFF. To close the Auto Zero Set ...

  • Teledyne 7500ZA - page 73

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 57 Setting the Range Cycle 1 to 99 hours or 1to 40 da ys (default: 7 days Flow Time 60 to 900 sec (default: 300 sec.) Caution: When an auto ze ro calibration starts, the measurement screen automatically appears. Any operation other than “Auto Zero Calibration Stop” (see ...

  • Teledyne 7500ZA - page 74

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 58 6.5.2.1 E XECUTION OF AUTO ZERO CA LIBRATION ( ONLY ONCE ) 1. In the “Setting of Auto Zero Calibration” screen that appears, point the cursor to “Run” by pressing the UP or DOWN key. Then press ENT. 2. “Run” is highlighted, displaying a message to confirm execution ...

  • Teledyne 7500ZA - page 75

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 59 Auto Zero Calibration Screen Example With Ch1 and Ch2 set to enable for au to calibration (see Section 6.2.4): • Zero calibration A message, “Zero cal.” blinks at Ch1 and Ch2. Caution: During auto zero calibration, the only key operations allowed are key lock ON/OFF ...

  • Teledyne 7500ZA - page 76

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 60 6.6 Parameter Setting From the Parameter Setting screen you can set or adjust various parameters of the instrument such as time, key lock, etc. Settable item s are as follows: Description of setting items • Current Time : Current year, mont h, date, day of the week, hour, an ...

  • Teledyne 7500ZA - page 77

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 61 2. In the “Parameter Setting” screen that appears, perform the value entry or the setting. For the value entry or setting change, use the UP or DOWN key, and the SIDE key to move the cursor to the right. To close the Parameter Setting screen or to abort the entry midw ...

  • Teledyne 7500ZA - page 78

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 62 Manual Calibration Auto Calibration Remote Input Screen Display During Holding A “Hold ON” message will blink on the m easuring screen du ring a hold period. ...

  • Teledyne 7500ZA - page 79

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 63 But during a manual calibration the sc reen displays the process of calibration, therefore a “Hold ON” message will not display ed even if the output signal is held, however the screen will display the hold extending time. If the calibration is cancelled afte r the ca ...

  • Teledyne 7500ZA - page 80

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 64 4. On the parameter hold screen that appears, move the curso r to the Ch (component) you want to hold using the UP or DOWN key and then press ENT. 5. A highlighted value indicates that it can be changed. Adjust the highlighted value with the UP or DOWN key and then move the cu ...

  • Teledyne 7500ZA - page 81

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 65 Setting Description • The instantaneous measurem ent valu e that is displayed cannot be held. (Output only can be held.) Optional modbus communications “Measurement concentration” register values are h eld. • If set value is selected for hold, instantaneous O 2 co ...

  • Teledyne 7500ZA - page 82

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 66 Average Value Reset This mode is used to clear all average values, i.e. O 2 correc tion average and O 2 average, and restarts aver aging. All average values are reset simultaneously. The indication va lue and output value is 0 ppm, vol% or so at the time of the rese t input (b ...

  • Teledyne 7500ZA - page 83

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 67 On the Parameters screen, when ON is selected for the Back light Timer function, the time until auto OFF will also display. Press the SIDE key when ON is highlighted and the time setting can be changed. Use the UP or DOWN key to change the time value and then press ENT to ...

  • Teledyne 7500ZA - page 84

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 68 6.7 Maintenance Mode This mode is used to check sensor input values, display of error log or setting of passwords, etc. This is a password protected area. To access the maintenance mode, enter the correct password from the Parameter Setting/To Maintenance screen. 1. Select the ...

  • Teledyne 7500ZA - page 85

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 69 6.7.3 Calibration Log screen Calibration history can be displaye d from this screen. Information available includes sensor input value, concentration value, and the date when zero/span calibration was performed for the last 10 calibration events. They are logged according ...

  • Teledyne 7500ZA - page 86

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 70 6.7.4 Output Adjustment Screen The Analog Output Adjustment screen allows the user to adjus t the 0-1 V and 4-20 mA output signal. Connect a digital multi m eter to the specific output term inal requiring adjustment and adjust the va lue so that 4 mA or 0 V is output at zero c ...

  • Teledyne 7500ZA - page 87

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 71 6.7.5 Other Parameter The Other Parameter screen hosts 5 user settable functions: • Password Setting • O 2 Reference Value • O 2 Reference Value Limit • Station Number • Instrument Range Setting To change any of these items: • Press the UP or DOWN key to move ...

  • Teledyne 7500ZA - page 88

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 72 Station No. This function allows the user to s et th e station No. for MODBUS communication. It is settable in the range from 00 to 32. Range Setting This function brings up a screen where the user can set the range for which concentration measurem ents are made. There are two ...

  • Teledyne 7500ZA - page 89

    NDIR Gas Analyzer Settings and Calibration Teledyne Analytical Instruments 73 6.8 Calibration 6.8.1 Zero Calibration This function is used for the zero point adjustment. A proper zero gas, suitable for the application, should be used. Refer to section 3.4 “Sampling”. 1. From the Measurement screen, press the ZERO key to display the Manual Zero ...

  • Teledyne 7500ZA - page 90

    Settings and Calibration Model 7500ZA Teledyne Analytical Instruments 74 6.8.2 Span Calibration The Model 7500ZA requires periodic sp an calibration at or near the full scale value on the range of interest . It requires a prepared standard gas containing a known concentration of the measured species. For span calibration gas on the NOX, SO 2 , CO 2 ...

  • Teledyne 7500ZA - page 91

    NDIR Gas Analyzer Maintenance Teledyne Analytical Instruments 75 7. Maintenance 7.1 Daily Check 1. Zero calibration and span calibration 1. Perform zero calibration . For the ca libration procedures, refer to Section 6.8.1 Zero calibration. 2. Following the zero calibration, perform a span calibration. For the calibration procedures, refer to Secti ...

  • Teledyne 7500ZA - page 92

    Maintenance Model 7500ZA Teledyne Analytical Instruments 76 7.2 Daily Check And Maintenance Procedures Table 7.1 Maintenance and Check Table 7.3 Long T erm Maintenance Create a long-term maintenance component procurement plan based on the “Gas analyzer annual inspection plan” indicated below. Gas Analyzer Annual Inspection Plan The recommended ...

  • Teledyne 7500ZA - page 93

    NDIR Gas Analyzer Maintenance Teledyne Analytical Instruments 77 Installation Conditions 1. Ambient temperature: -5°C to +40°C 2. Humidity: 90%RH or less 3. Corrosive gases: None 4. No radiated heat, direct sunlight or rain/wind 5. Dust: No more than local environmental standards perm it 6. Vibration: None Sample gas conditions 1. Temperature: +6 ...

  • Teledyne 7500ZA - page 94

    Maintenance Model 7500ZA Teledyne Analytical Instruments 78 7.4 Cleaning the Sample Cell Entry of dust or water in the sampling cell conta minates the interior of the cell resulting in drif t. If dirty or contaminated, it m ust be cleaned. Check the sampling device, especially the filter, to prevent the cell from being dust or mist contamination. C ...

  • Teledyne 7500ZA - page 95

    NDIR Gas Analyzer Maintenance Teledyne Analytical Instruments 79 7.4.1.1 P IPE C ELL R EMOVAL (S EE F IG . 7-1) 1. Stop all gas flow. If necessar y, purge the pipe cell thoroughly with zero gas. 2. Turn OFF the power switch and disconnect the AC power cord. 3. Remove the cover (six screws). 4. Remove the tube connected to the pipe cell. 5. Loosen a ...

  • Teledyne 7500ZA - page 96

    Maintenance Model 7500ZA Teledyne Analytical Instruments 80 7.4.1.2 B LOCK C ELL R EMOVAL (S EE F IG . 7-2)  For steps 1 to 4, see 7.4.1.1, Pipe Cell Removal. 5. Disconnect and remove detector output cables from detector output circuit board (No.12). A pplying identification mark on top of removed cable connect or will ensure proper pin assignme ...

  • Teledyne 7500ZA - page 97

    NDIR Gas Analyzer Maintenance Teledyne Analytical Instruments 81 Figure 7-2: Measuring Unit Configuration (Block Cell) ...

  • Teledyne 7500ZA - page 98

    Maintenance Model 7500ZA Teledyne Analytical Instruments 82 7.4.1.3 R EMOVING THE M EA SURING U NIT Refer to Fig. 7-3. For step 1 to 4, see 7.4.1.1, Pipe Cell Removal. 5. Disconnect and remove detector output cables from detector output circuit board (No.12). A pplying identification mark on top of removed cable connect or will ensure proper pin as ...

  • Teledyne 7500ZA - page 99

    NDIR Gas Analyzer Maintenance Teledyne Analytical Instruments 83 Figure 7-3: Measuring Unit with 2-Component Block and Pipe Cell ...

  • Teledyne 7500ZA - page 100

    Maintenance Model 7500ZA Teledyne Analytical Instruments 84 7.5 Fuse Replacement 1. Turn “OFF” the main power supply switch to the analyzer. 2. Rotate the fuse holder cap (shown in the figure above) counterclockwise and pull it out. The cap (fuse holder) will contain the fuse. Remove the bl own fuse from the holder and replace it with a new one ...

  • Teledyne 7500ZA - page 101

    NDIR Gas Analyzer Error Messages Teledyne Analytical Instruments 85 8. Error Messages Table 8-1 lists the error message s that may occur onscreen along with the probable cause for the error. Table 8-1: Error Messages When errors No. 1 to No. 3 and N o. 10 occur, analyzing block error contact output closes. When errors N o. 4 to No. 9 occur, the cal ...

  • Teledyne 7500ZA - page 102

    Error Messages Model 7500ZA Teledyne Analytical Instruments 86 8.1 Troubleshooting When error No. 1 occurs, remove the top cover of the analyzer and check the LED on the light source PCB. If the LED is off, then the error is caused by a light source disconnection. Errors 1-3 and10 indicate an analyzer failure or fault. Contact TAI for assistance. E ...

  • Teledyne 7500ZA - page 103

    NDIR Gas Analyzer Error Messages Teledyne Analytical Instruments 87 • Press the ECS key to dele te the error display. • If the ESC key is pressed without removing the cause of an error, the error will be displayed again. • When more than one error occurs, use the SIDE key to move to the next error display. For errors 5 and 7: 8.2 Error Log Fi ...

  • Teledyne 7500ZA - page 104

    Error Messages Model 7500ZA Teledyne Analytical Instruments 88 Error Log Screen * Up to 14 errors can be saved in th e error history; the oldest error will be deleted one by one every time a new error occurs. * If the power supply is turned OFF, the contents in th e error log file will not be lost or damaged. Deleting Error History Press the ENT ke ...

  • Teledyne 7500ZA - page 105

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 89 9. S pecifications 9.1 General S pecifications 9.1.1 Standard Specifications Measurement Method: NO, SO 2 , CO 2 , CO, CH 4 : Non-dispersion infrared-ray absorption method Single light source and single beams (single beam system) O 2 : Fuel cell O 2 analyzer (built-in) or paramagne ...

  • Teledyne 7500ZA - page 106

    Specifications Model 7500ZA Teledyne Analytical Instruments 90 O 2 External Zirconia 0-5 vol.% 0-25 vol.% Max. 5 components measurement including O 2 . For reverse range O 2 measurement, IR gas measurement is not available (single range O 2 only). Measuring range ratio max. 1:10 (except O 2 ) User adjustable ranges between the specified minimum and ...

  • Teledyne 7500ZA - page 107

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 91 Allowable load 100K Ω for 0 to 1V DC  Refer to Table2 for the channel No. of displayed values and analog output signals. Analog Input Signal: For signal input from externally installed O 2 sensor. Signal requirement: (1) Signal from Zirconia O 2 sensor (TYPE: ZFK7) (2) 0 to 1V ...

  • Teledyne 7500ZA - page 108

    Specifications Model 7500ZA Teledyne Analytical Instruments 92 Power Supply: Voltage rating: 100V to 240V AC Allowable range: 85V to 264V AC Frequency: 50Hz/60Hz Power consumption: 100VA max. Operating Conditions: Ambient temperature: -5 ˚ C to 45 ˚ C (40 ˚ C max. when 2 optical system at 200V AC power source) Ambient humidity: 90% RH max., non- ...

  • Teledyne 7500ZA - page 109

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 93 9.1.2 Standard Functions Output Signal Hold: Output signals are held unchanged during manual and auto calibrations when HOLD function is ON. The values held are those just before start of calibration mode or setting value. User selectable. Indication of instantan e ous values will ...

  • Teledyne 7500ZA - page 110

    Specifications Model 7500ZA Teledyne Analytical Instruments 94 9.1.3 O ptional Functions  Remote Output Holding: Output signal is held at the last value or preset value by a voltage input to the remote output holding input terminals. Holding is maintained while the voltage is input to the terminals. Indication of instantaneous values are not hel ...

  • Teledyne 7500ZA - page 111

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 95 circuiting for 1.5 sec or longer. Auto calibration initiates when contacts open. Auto Zero Calibration: Auto zero calibration is carried out periodically at the preset cycle. This cycle is independent from “Auto Calibration” cycle. When zero calibration gas and solenoid valve f ...

  • Teledyne 7500ZA - page 112

    Specifications Model 7500ZA Teledyne Analytical Instruments 96 Correction formula: C : Sample gas concentration after O 2 correction. Cs : Measured concentration of sample gas. Os : Measured O 2 concentration (Limit setting: 1 to 20% O 2 ) On : Reference O 2 concentration (value changeable by setting 0 - 19% O 2 ). Average value after O 2 correctio ...

  • Teledyne 7500ZA - page 113

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 97 Start-stop synchronization ModbusTM protocol Contents : Read/Write parameters Read measurement conc. and instrument status Re mark : When connecting via RS-232C interface, an RS-232C ↔ RS485 converter should be used. Atmospheric Pressure Correction: Measure atmospheric pressure a ...

  • Teledyne 7500ZA - page 114

    Specifications Model 7500ZA Teledyne Analytical Instruments 98 9.1.4 Performance Repeatability: ±0.5% of full scale Linearity: 1% of full scale prior to atmospheric pressure correction (option) Zero drift: ±2% of full scale/week. For auto zero calibration use 500ppm or lower range. Span drift: ±2% of full scale/week Response time (for 90% FS res ...

  • Teledyne 7500ZA - page 115

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 99 Electromagnetic Compatibility ; EN61010-1 : 2010 Safety requirements for electrical equipment for measurem ent, control and laboratory use. “Installation Category II” “Pollution Degree 2” EN61326-1 : 2006 Electrical equipment for m easurement, control and laboratory use — ...

  • Teledyne 7500ZA - page 116

    Specifications Model 7500ZA Teledyne Analytical Instruments 100 Zero gas ; Dry air or atmospheric air (Do not use with CO 2 measurement) Span gas ; For other than O 2 measurement, each sample gas having concentration 90 to 100% of its measuring range. For O 2 measurem ent, O 2 gas of 1 to 2 vol% /remainder N 2 gas 2) Reverse range O2 measurement Ze ...

  • Teledyne 7500ZA - page 117

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 101 9.2 T able 1 Measurable Component and Range - A vailability Check T able Procedure for range selection One component analyzer: 1. First determine 1st range, then select 2nd range from the corresponding right column. More than two components analyzer: 1. The 2nd range in the tables ...

  • Teledyne 7500ZA - page 118

    Specifications Model 7500ZA Teledyne Analytical Instruments 102 ...

  • Teledyne 7500ZA - page 119

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 103 ...

  • Teledyne 7500ZA - page 120

    Specifications Model 7500ZA Teledyne Analytical Instruments 104  ...

  • Teledyne 7500ZA - page 121

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 105 ...

  • Teledyne 7500ZA - page 122

    Specifications Model 7500ZA Teledyne Analytical Instruments 106 9.3 Code Symbols ...

  • Teledyne 7500ZA - page 123

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 107 note1) When “D” is specified at 4th digit, Power supply cord is supplied in the scope of supply. Cord speci fication should be specified at the 20th digit. note2) When only O2 measuremen t is necessary, “Y” should be specified at 6th digit. note3) When “1” is specified ...

  • Teledyne 7500ZA - page 124

    Specifications Model 7500ZA Teledyne Analytical Instruments 108 When 4 components measurement is specified and “H” is specified at 22nd digit, 3 point s is maximum for alarm output function. note8) When “B” is specified at 24th digit, measuring range should be specified by ppm range code. In this case NO, SO2 and CO measuring range are corr ...

  • Teledyne 7500ZA - page 125

    NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 109 9.4 Outline Diagram <Analyzer main unit> ...

  • Teledyne 7500ZA - page 126

    Specifications Model 7500ZA Teledyne Analytical Instruments 110 [Blank page] ...

Manufacturer Teledyne Category Welding Consumables

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Teledyne 7500ZA by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Teledyne 7500ZA.

A complete Teledyne manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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