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OPERATING INSTRUCTIONS FOR
Model 7500ZA
NDIR Infrared Gas Analyzer
P/N M7500ZA
4/09/14
DANGER
Toxic gases and or flammable liquids may be present in this monitoring system.
Personal protective equipment may be required when servicing this instrument.
Hazardous voltages exist on certain components internally which may persist
for a time even after the power is turned off and disconnected.
Only authorized personnel should conduct maintenance and/or servicing.
Before cond
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Model 7500ZA 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, mechanical, magnetic, optical, manual, or otherwise, without the prior written consent of Teledyne Analytical Instruments, 16830 Chestnut Street, City of Industry, CA 91748.
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NDIR Gas Analyzer Specific Model Information It is not recommended that this instrument 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 calibrated at the factory for a specific application using a known gas mixture that is representative of the customers’ process. Using this instrument to analyze any other gas mixture may result in interference and possible measurement error. Consult the factory for additio
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Model 7500ZA 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 inst
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NDIR Gas Analyzer IF YOU USE THE ANALYZER IN A MANNER OTHER THAN THAT FOR WHICH IT WAS INTENDED, UNPREDICTABLE BEHAVIOR COULD RESULT POSSIBLY ACCOMPANIED WITH HAZARDOUS CONSEQUENCES. This manual provides information designed to guide you through the installation, calibration operation and maintenance of your new analyzer. Please read this manual and keep it available. Occasionally, some instruments are customized for a particular application or features and/or options added per cu
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Model 7500ZA Additional Caution on Safety To operate the analyzer properly, be sure to read “Caution on Safety” carefully. The descriptions listed here provide important information on safety. Be sure to observe them at all times. These safety precautions are classified into 3 levels: “DANGER,” “CAUTION” and “PROHIBITION”. ” Improper handling may cause dangerous situations that may result in death or serious DANGER injury. Improper handling may cause dangerous situations that m
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NDIR Gas Analyzer The gas analyzer is heavy. To transport the analyzer, please use a hand cart or equivalent. Avoid carrying analyzer by hand as much as possible. Doing so may cause injury. Take care not to let cable chips and other foreign objects enter the unit during installation work. Otherwise, fire, failure, or malfunction may result. Caution on piping Be sure to observe the following precautions while installing piping. Improper DANGER piping may result in gas leakage.
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Model 7500ZA the ratings of the instrument. Otherwise, electric shock or fire may result. Be sure to connect a power supply of correct rating. Otherwise, fire may result. Caution on use Be sure to read the instruction manual for reference gases before handling reference gases DANGER such as calibration gas to use them properly. Leaving the analyzer unused for a long time or restarting it after long-term suspension requires CAUTION procedures different from normal operation
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NDIR Gas Analyzer Be sure to observe the following to perform work CAUTION safely, avoiding electric shock or injury. Remove the watch and other metallic objects before work. Do not touch the instrument with wet hands. If the fuse is blown, eliminate the cause and replace it with the one of the same capacity and type. Otherwise, electric shock or accidents may result. Do not use replacement parts other than those specified by the manufacturer. Otherwise, intended performance m
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Model 7500ZA Table of Contents Specific Model Information ......................................................... iii Safety Messages .......................................................................... iv Additional Caution on Safety ...................................................... vi List of Figures ............................................................................ xiv List of Tables ..............................................................................
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NDIR Gas Analyzer Display And Operation Panels ................................................... 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 Calibration ............................................................. 35 6.1 Range Switch 35 6.1.1 Setting the Range Switch Mode 35 6.1.2 Manual Range Mode 36 6.1.3 Range Identification Contacts 36 6.2 Calibration Setting 37 6.2.
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Model 7500ZA 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. Maintenance ............................................................................ 75 7.1 Daily Check 75 7.2 Daily Check And Maintenance Procedures 76 7.3 Long Term Maintenance 76 7.4 Cleaning the Sample Cell 78 7.4.1 Sample Cell Disassembly 78 7.4.1.1 Pipe Cell Removal (S
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NDIR Gas Analyzer 9.3 Code Symbols 106 9.4 Outline Diagram 109 Teledyne Analytical Instruments xiii
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Model 7500ZA List of Figures Figure 2-1A: Model 7500ZA Front Panel ......................................... 4 Figure 2-1B: Model 7500ZA Rear Panel ......................................... 5 Figure 7-1: Measuring Unit Configuration (Pipe Cell) .................... 79 Figure 7-2: Measuring Unit Configuration (Block Cell) .................. 81 Figure 7-3: Measuring Unit with 2-Component Block and Pipe Cell83 Teledyne Analytical Instruments xiv
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NDIR Gas Analyzer List of Tables Table 7.1 Maintenance and Check Table ...................................... 76 Table 8-1: Error Messages ............................................................ 85 Teledyne Analytical Instruments xv
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Model 7500ZA 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 equipment specified installed in accordance with the information contained within this manual. It is the customer's responsibility to ensure safety especially when combustible gases are being analyzed since the potential of gas leaks always exist. The customer should ensure that
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NDIR Gas Analyzer Introduction Introduction 1.1 Overview The Model 7500ZA is designed to measure the concentration of NO, SO , CO , CO and CH in a sample gas based on the principle that 2 2 4 different atomic molecules have a different absorption spectrum in the infrared band and the intensity of absorption is determined by the Lambert-Beer law. When equipped with the optional O sensor, the Model 7500ZA is 2 capable of measuring up to 5 components simultaneously or up to 4 compone
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Introduction Model 7500ZA 1.2 Typical Applications The Model 7500ZA is a microprocessor based analyzer with a large LCD display, superior accuracy and a multitude of functions suitable for a variety of applications including: • Combustible gas emissions from boilers or incinerators • Steel gas analysis (blast furnace, steel converter, thermal treatment furnace, sintering (pellet equipment) etc. • Coke furnace • Storage and maturity of vegetable and fruit, • Biochemistry (microbe) (
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NDIR Gas Analyzer Items Included with Analyzer 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 Input Connector (1) (External O2/External Zirconia Sensor as specified) Digital Input Connector (3 max with the no. of DIO when digital I/O function i
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Items Included with Analyzer Model 7500ZA RS-484 Connector (1) (when provided with communications function) 9 pin D-sub connector male M2.6 x 4 mm Ferrite Core (1) for power cable (When terminal block for power supply is specified) Power Supply Cord (1) (when power input is specified) • 2.2 Name and Description of Analyzer The operator interface is shown in Figure 2-1A and the various connections to the instrument are shown in figure 2-1B. Figure 2-1A: Model 7500
