Instruction/ maintenance manual of the product 7500ZA Teledyne
Go to page of 126
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.
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 r.
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.
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.
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.
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.
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.
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.
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.
Model 7500ZA Teledyne Analytical Instruments x T able of Content s Specific Model In formation ......................................................... iii Safety Me ssages .........................................................................
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.
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.
NDIR Gas Analyzer Teledyne Analytical Instruments xiii 9.3 Code Symbols 106 9.4 Outline Diagram 109 .
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) .
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 .
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.
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 ba.
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 o.
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.
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.
NDIR Gas Analyzer Operation Teledyne Analytical Instruments 5 Figure 2-1B: Model 7500ZA Rear Panel.
Items Included with Analyzer Model 7500ZA Teledyne Analytical Instruments 6 [Blank page].
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.
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.
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.
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.
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 Si.
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.
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.
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.
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.
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.
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.
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.
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.
Installation Model 7500ZA Teledyne Analytical Instruments 20.
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.
Installation Model 7500ZA Teledyne Analytical Instruments 22 2. Automatic calibration: (See also Section 6.4: Automatic Calibration Settings ).
NDIR Gas Analyzer Instalation Teledyne Analytical Instruments 23 [Blank page].
.
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.
Installation Model 7500ZA Teledyne Analytical Instruments 26 [Blank page].
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.
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.
NDIR Gas Analyzer Displa y and Operation Panels Teledyne Analytical Instruments 29 5.2 Overview of Display and Operation Panels.
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).
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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%.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 V.
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.
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.
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.
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.
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.
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.
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.
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.
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).
NDIR Gas Analyzer Maintenance Teledyne Analytical Instruments 81 Figure 7-2: Measuring Unit Configuration (Block Cell).
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.
NDIR Gas Analyzer Maintenance Teledyne Analytical Instruments 83 Figure 7-3: Measuring Unit with 2-Component Block and Pipe Cell.
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.
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.
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.
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.
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.
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-di.
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.
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.
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.
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.
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.
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.
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 ).
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.
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.
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.
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.
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.
Specifications Model 7500ZA Teledyne Analytical Instruments 102.
NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 103.
Specifications Model 7500ZA Teledyne Analytical Instruments 104 .
NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 105.
Specifications Model 7500ZA Teledyne Analytical Instruments 106 9.3 Code Symbols.
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.
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.
NDIR Gas Analyzer Specifications Teledyne Analytical Instruments 109 9.4 Outline Diagram <Analyzer main unit>.
Specifications Model 7500ZA Teledyne Analytical Instruments 110 [Blank page].
An important point after buying a device Teledyne 7500ZA (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Teledyne 7500ZA yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Teledyne 7500ZA - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Teledyne 7500ZA you will learn all the available features of the product, as well as information on its operation. The information that you get Teledyne 7500ZA will certainly help you make a decision on the purchase.
If you already are a holder of Teledyne 7500ZA, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Teledyne 7500ZA.
However, one of the most important roles played by the user manual is to help in solving problems with Teledyne 7500ZA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Teledyne 7500ZA along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
