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Teledyne 3190 manual

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Table of contents for the manual

  • Page 1

    i Teledyne Analytical Instruments OPERATING INSTRUCTIONS FOR Model 3190 Series T race Oxyg en Analyzer P/N M64641 06/21/2000 ECO # 00-0221 HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING SYSTEM. PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM. HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS I[...]

  • Page 2

    ii Teledyne Analytical Instruments Copyright © 1999 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,[...]

  • Page 3

    iii Teledyne Analytical Instruments Specific Model Information The instrument for which this manual was supplied may incorporate one or more options not supplied in the standard instrument. Commonly available options are listed below, with check boxes. Any that are incorporated in the instrument for which this manual is supplied are indicated by a [...]

  • Page 4

    iv Teledyne Analytical Instruments Contents Introduction 1. 1 Overview ........................................................................ 1-1 1.2 Main Features of the Analyzer ....................................... 1-1 1.3 F ront P anel Descr iption .................................................. 1-2 1. 4 Rear P anel Description .........[...]

  • Page 5

    v Teledyne Analytical Instruments 4.4 Setting the Alarm Setpoints ............................................ 4-3 4.4.1 HI Alarm ................................................................. 4-3 4.4.2 LO Alarm ................................................................ 4-3 4.4.3 Sensor F ail Alar m ........................................[...]

  • Page 6

    vi Teledyne Analytical Instruments[...]

  • Page 7

    1-1 Trace Oxygen Analyzer Introduction 1 Teledyne Analytical Instruments Introduction 1.1 Overview The Teledyne Analytical Instruments (TAI) Model 3190 is a micropro- cessor-based trace oxygen analyzer for real-time measurement of trace amounts of oxygen in inert gases, or in a wide variety of gas mixtures. It features simple operation, fast respon[...]

  • Page 8

    1-2 1 Introduction Model 3190 Teledyne Analytical Instruments • Two concentration alarms with adjustable setpoints. • Sensor failure alarm. • RS-232 serial digital port for output of concentration and range data to a computer, terminal, or other digital device. • Three analog outputs: two for measurement (0 – 10 V dc, and negative ground [...]

  • Page 9

    1-3 Trace Oxygen Analyzer Introduction 1 Teledyne Analytical Instruments • Set HI Alarm Set the concentration ABOVE which an alarm activates. • Set LO Alarm Set the concentration BELOW which an alarm activates. • Set HI Range Set the high analysis range for the instrument (up to 0-9999 ppm). • Set LO Range Set the low analysis range for the[...]

  • Page 10

    1-4 1 Introduction Model 3190 Teledyne Analytical Instruments Figure 1-2 Rear Panel (AC and DC versions) • Power Connection AC version: 100 – 240 V ac, at 50/60 Hz. The connector housing includes the fuse holder and the power switch. DC version: Requires between 10 and 36 V dc. Fuse Holder: Replacing the fuse is described in Chapter 5, Maintena[...]

  • Page 11

    1-5 Trace Oxygen Analyzer Introduction 1 Teledyne Analytical Instruments • Alarm Connections HI Alarm, LO Alarm, and Sensor Failure Alarm connections. • RS-232 Port Serial digital output of concentration and range signals. • External Probe Connects to the Remote Probe or remote Analysis Unit.[...]

  • Page 12

    1-6 1 Introduction Model 3190 Teledyne Analytical Instruments[...]

  • Page 13

    2-1 Trace Oxygen Analyzer Operational Theory 2 Teledyne Analytical Instruments Operational Theory 2.1 Introduction The analyzer is composed of two subsystems: 1. Analysis Unit with Micro-Fuel Cell Sensor 2. Control Unit with Signal Processing, Display and Controls The Analysis Unit is designed to accept the sample gas and direct it to the sensitive[...]

  • Page 14

    2-2 2 Operational Theory Model 3190 Teledyne Analytical Instruments stored within the cell, whereas in the Micro-Fuel Cell, one of the reactants (oxygen) comes from outside the device as a constituent of the sample gas being analyzed. The Micro-Fuel Cell is therefore a hybrid between a battery and a true fuel cell. (All of the reactants are stored [...]

  • Page 15

    2-3 Trace Oxygen Analyzer Operational Theory 2 Teledyne Analytical Instruments At the top end of the cell is a diffusion membrane of Teflon, whose thickness is very accurately controlled. Beneath the diffusion membrane lies the oxygen sensing element — the cathode — with a surface area almost 4 cm 2 . The cathode has many perforations to ensure[...]

  • Page 16

    2-4 2 Operational Theory Model 3190 Teledyne Analytical Instruments 2Pb + O 2 → 2PbO (These reactions will hold as long as no gaseous components capable of oxidizing lead — such as iodine, bromine, chlorine and fluorine — are present in the sample. The only likely components are the halogens.) The output of the fuel cell is limited by (1) the[...]

  • Page 17

    2-5 Trace Oxygen Analyzer Operational Theory 2 Teledyne Analytical Instruments Figure 2-2. Characteristic Input/Output Curve for a Micro-Fuel Cell 2.3 Electronics 2.3.1 General The signal processing uses an Intel  microcontroller with on-board RAM and ROM to control all signal processing, input/output, and display functions for the analyzer. Sys[...]

  • Page 18

    2-6 2 Operational Theory Model 3190 Teledyne Analytical Instruments Figure 2-3: Block Diagram of the Signal Processing Electronics In the presence of oxygen the cell generates a current. A current to voltage amplifier (I – E AMPL) converts this current to a voltage. The second stage amplifier (TEMP COMP) supplies temperature compensation for the [...]

  • Page 19

    3-1 Trace Oxygen Analyzer Installation 3 Teledyne Analytical Instruments Installation Installation of the analyzer includes: 1. Unpacking the system. 2. Mounting the Control Unit, External Sample Block, and Micro- Fuel Cell sensor. 3. Making the electrical connections. 5. Making the gas connections. 6. Testing the installation. CAUTIONS: Read this [...]

  • Page 20

    3 Installation Model 3190 3-2 Teledyne Analytical Instruments shipped with all the materials you need to install and prepare the system for operation. CAUTION: Do not disturb the integrity of the cell package until the cell is to be used immediately. If the cell package is punctured prematurely and air is permitted to enter, cell life will be short[...]

  • Page 21

    3-3 Trace Oxygen Analyzer Installation 3 Teledyne Analytical Instruments For special applications the Micro-Fuel Cell may also be of a different type than the standard A-2C, B-2C or Z-2C unit. If this is the case, the pertinent cell specifications will be given in the addendum. 3.2.3 Installing the Micro-Fuel Cell / Cell Block Orientation A Micro-F[...]

  • Page 22

    3 Installation Model 3190 3-4 Teledyne Analytical Instruments Figure 3-1 Rear Panel Electrical Connectors for AC and DC Units Primary Input Power (AC version): The power cord receptacle, fuse block and Power switch are located in the same assembly. A 6-foot, standard AC power cord is supplied with the Control Unit. Insert the female plug end of the[...]

  • Page 23

    3-5 Trace Oxygen Analyzer Installation 3 Teledyne Analytical Instruments fuse receptacle, to the right of the power terminal strip, holds a 0.5 A, very quick acting fuse. (See Fuse Replacement in chapter 5, Maintenance .) The Power switch is located below the fuse receptacle. WARNING: INSERT THE STRIPPED TIPS OF WIRES ENTIRELY INTO THE TERMINAL BLO[...]

  • Page 24

    3 Installation Model 3190 3-6 Teledyne Analytical Instruments Figure 3-2: Contact ID for FAILSAFE Relay Operation The specific descriptions for each type of alarm are as follows: HI Alarm Configured as high alarm (actuates when concentration is above threshold). Can be set anywhere within the full range of the analyzer (0-9,999 ppm), but must be se[...]

  • Page 25

    3-7 Trace Oxygen Analyzer Installation 3 Teledyne Analytical Instruments is keyed to fit only one way into the receptacle. Do not force it in. The other end of the cable is made of four separate wires. These should be connected to the terminal strip on the analysis unit as follows: Red: #1 Black: #2 Green: # 3 } The green and white connectors can b[...]

  • Page 26

    3 Installation Model 3190 3-8 Teledyne Analytical Instruments[...]

  • Page 27

    Trace Oxygen Analyzer Operation 4 4-1 Teledyne Analytical Instruments Operation 4. 1 Introduction Once the analyzer has been mounted, the gas lines connected and the electrical connections made, the Analyzer can be configured for your appli- cation. This involves setting the system parameters: • Defining the user selectable analysis ranges. • S[...]

  • Page 28

    4 Operation Model 3190 4-2 Teledyne Analytical Instruments Buttons When no buttons on the Analyzer are being pressed, the instrument is in the Analyze mode. It is monitoring the amount of oxygen in the sample gas that is flowing through the Remote Probe. When one of the Function Buttons is being pressed, the Analyzer is in the Setup mode or the Cal[...]

  • Page 29

    Trace Oxygen Analyzer Operation 4 4-3 Teledyne Analytical Instruments 4.3.1 HI Range Setting the HI Range fullscale value defines the LEAST sensitive analysis range to be used. To set the HI Range: 1. Press the SET HI RANGE Function button once. 2. Immediately (within 5 seconds) press either the ∆ or ∇ button to raise or lower the displayed val[...]

  • Page 30

    4 Operation Model 3190 4-4 Teledyne Analytical Instruments 2. Within 5 seconds, press either the ∆ or ∇ button to raise or lower the displayed value, as required, until the display reads the desired concentration. 4.4.2 LO Alarm Setting the LO Alarm sets the value BELOW which the LO alarm will activate. To set the LO Alarm: 1. Press the SET LO [...]

  • Page 31

    Trace Oxygen Analyzer Operation 4 4-5 Teledyne Analytical Instruments Procedure: 1. Expose the sensor to ambient air or instrument grade air (20.9 % oxygen). Allow time for the sampling system to purge and the analyzer to achieve equilibrium. Note: If the analyzer output goes above the high alarm setpoint or below the low alarm setpoint, the front [...]

  • Page 32

    4 Operation Model 3190 4-6 Teledyne Analytical Instruments 4.8 “ SetL ” mode in the LED display When you turn on the unit, it displays “ 8.8.8.8 ” for a couple of seconds. This is to have an inspection that all segments of the display are all right. After the first two seconds, the LED display will show “ SetL ” and alternate with a cou[...]

  • Page 33

    5-1 Trace Oxygen Analyzer Maintenance 5 Teledyne Analytical Instruments Maintenance Aside from normal cleaning and checking for leaks, the Model 3190 should not require any maintenance beyond replacement of expended Micro- Fuel Cells, and perhaps a blown fuse. Routine maintenance includes occa- sional recalibration, as described in chapter 4, Opera[...]

  • Page 34

    5-2 5 Maintenance Model 3190 Teledyne Analytical Instruments open the spare fuse compartment, push on one end until it slides out. 4. Remove the blown fuse and replace it with a 5 × 20 mm 0.5 A, 250 VAC, IEC time lag (T) fuse (P/N F1128) for AC units. 5. Replace the fuse holder into its receptacle, pushing in firmly until it clicks. 5.1.2 DC Power[...]

  • Page 35

    5-3 Trace Oxygen Analyzer Maintenance 5 Teledyne Analytical Instruments CAUTION: Read the section Cell Warranty Conditions , below, before replacing the cell. CAUTION: After replacing the Micro-Fuel Cell, the analyzer must be recalibrated. See Calibration in chapter 4. 5.2.2 Ordering and Handling of Spare Sensors To have a replacement cell availabl[...]

  • Page 36

    5-4 5 Maintenance Model 3190 Teledyne Analytical Instruments 3. Unscrew the cell-retainer cap from the cell block by turning it counterclockwise until it is free. Figure 5-2: Exploded View of MFC and Cell Block 4. Slowly withdraw the cap from the block. The cell should come out with the cap . 5. Carefully pull the cell off of the cap. DO NOT TOUCH [...]

  • Page 37

    5-5 Trace Oxygen Analyzer Maintenance 5 Teledyne Analytical Instruments 1. Disconnect the Power Source from the Control Unit. 2. Remove the new Micro-Fuel Cell from its protective bag. 3. Examine the O-ring at the base of the threaded portion of the cell- retainer cap, and replace it if it is worn of damaged. 3. Replace the cell on the end of cell-[...]

  • Page 38

    5-6 5 Maintenance Model 3190 Teledyne Analytical Instruments[...]

  • Page 39

    A-1 Trace Oxygen Analyzer Appendix Teledyne Analytical Instruments Appendix A.1 Specifications Ranges : Two user selectable ranges can be set between 0-10 ppm and 0-9,999 ppm oxygen. Default ranges are 0-100 ppm and 0-1,000 ppm oxygen, and a 0-25 % (nomi- nal) Air Calibration Range. Signal Output : Voltage: 0 – 10 V dc, negative ground Current: 4[...]

  • Page 40

    A-2 Appendix Model 3190 Teledyne Analytical Instruments (95.3 m m H × 177.8 m m W). Face plate rated to NEMA-4. Sensor Type : Class A-2C, B-2C, and Z-2C Analysis Unit: 4.0" H × 6.0" W × 2.5" D (101.6 mm × 152.4 mm × 63.5 mm) A . 2 Spare P arts List QTY P/N DESCRIPTION 1 C-65220-A PC Board, Main 1 C-64586 PC Board, Power Supply 1[...]

  • Page 41

    A-3 Trace Oxygen Analyzer Appendix Teledyne Analytical Instruments A . 3 Drawing List C-64772 Outline diagram C-64641 Final Assembly (and interconnection diagram) D-65666 Control Unit Assembly B-65992 Analysis unit outline A.4 Miscellaneous The symbol: ~ is used on the rear panel of the model 3190 to signify volts alternating current (V ac). NOTE: [...]

  • Page 42

    A-4 Appendix Model 3190 Teledyne Analytical Instruments[...]