Teledyne 306WA Instruction Manual

Trace oxygen analyzer

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I
NSTRUCTION
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RACE
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 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
CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/
MANAGER.
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M
306
ODEL
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XYGEN
DANGER
TELEDYNE ELECTRONIC TECHNOLOGIES
Analytical Instruments
M
ANUAL
WA
A
NALYZER
P/N M4624
09/14/99
ECO# 99-0373
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Summary of Contents for Teledyne 306WA

  • Page 1 P/N M4624 A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED. 09/14/99 ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. BEFORE ECO# 99-0373 CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/ MANAGER. TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 2 Any safeguards required such as locks, labels, or redundancy must be provided by the user or specifically requested of Teledyne. The purchaser must be aware of the hazardous conditions inherent in the process(es) he uses.
  • Page 3: Table Of Contents

    4.5 Humidity Control ............4-7 4.6 Power ............... 4-8 4.7 Warm-Up and Stabilization ........4-8 4.7.1 Calibration ........... 4-8 Maintenance & Troubleshooting 5.1 Flowmeter and Humidifier ........5-1 5.2 Cell Electrolyte Level ..........5-1 5.3 Reservoir ..............5-1 TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 4 Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A 5.4 Calibration ............... 5-2 5.4.1 Internal Calibrator ........5-2 5.4.2 Standard (span) Gas Calibration ....5-2 5.5 Cell ................5-4 5.5.1 Electrolyte Replacement ......5-4 5.5.2 Lead Electrode..........5-5 5.6 Screen Assembly.............
  • Page 5: Introduction

    Cell output is insensitive to flow rate changes within the operating range of the analyzer’s flowmeter. The Model 306WA features a welded stainless sampling system for long-term, leak-free operation. While the analyzer is offered in several configurations, they are virtually identical with the exception of housing or options such as special meters.
  • Page 6: Sample Conditioning

    1.2.2 Recorder /Meter Readout The meter installed on the 306WA is either analog or digital. The recorder used for analyzer signal readout is usually of the self-balancing potentiometric type. It should have an input inpedance of 20 20 20 20 20...
  • Page 7: Operational Theory

    It is necessary to maintain a film of electrolyte on the screens of the electrode assembly. This means that the humidity of the sample as it flows through the cell must be such that the water vapor pressure of the electro- TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 8: Flow System

    Model 306W Model 306W Model 306W Model 306WA A A A A lyte is equal to the water vapor pressure in the sample gas. If the humidity of the sample is too low, water will evaporate from the electrolyte, drying the cell.
  • Page 9 Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Operational Theory 2.0 Operational Theory 2.0 Operational Theory 2.0 Operational Theory 2.0 Operational Theory 2.0 Figure 1: Flow System Schematic TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 10: Calibrator

    Model 306W Model 306W Model 306W Model 306WA A A A A the humidifier column equal to the water column from the bottom of the reservoir to the water level in the reservoir. Thus, the water level in the humidifier column is held even with the sample connection at the bottom of the reservoir.
  • Page 11 Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Operational Theory 2.0 Operational Theory 2.0 Operational Theory 2.0 Operational Theory 2.0 Operational Theory 2.0 Figure 2: Proper Calibration TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 12 Model 306W Model 306W Model 306W Model 306WA A A A A The three ranges of the analyzer are intended primarily to make calib- ration convenient. It is expected that the oxygen content of the sample being analyzed will be within the narrow range (Range No. 1) of the analyzer.
  • Page 13: Installation

    The maximum power requirement is less than 1½ amperes at 115 VAC 1½ amperes at 115 VAC 1½ amperes at 115 VAC 1½ amperes at 115 VAC 1½ amperes at 115 VAC. TELEDYNE ELECTRONIC TECHNOLOGIE Analytical Instruments...
  • Page 14: Sample Connections

    3.0 Installation 3.0 Installation 3.0 Installation Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Figure 3: Typical System Layout 3.3 Sample Connections 3.3 Sample Connections 3.3 Sample Connections 3.3 Sample Connections 3.3 Sample Connections The sample line is connected at the back of the analyzer case as de- picted in Figure 5.
  • Page 15 Figure 4: General Connection Diagram See the specific Interconnection Diagram for your instrument in the drawing package located at the back of the manual. See also any Addenda that may be included with this manual. TELEDYNE ELECTRONIC TECHNOLOGIE Analytical Instruments...
  • Page 16 3.0 Installation 3.0 Installation 3.0 Installation 3.0 Installation 3.0 Installation Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Figure 5: Gas Connections to Back of Analyzer TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 17: Operations

    Electrolyte 4.2.2 4.2.2 Electrolyte The cell electrolyte is Teledyne Type A, used in applications where there is a complete absence of acidic anhydrides (CO , SO ) in the sample gas. Type A electrolyte is a 10% solution (w/v) of reagent-grade potassium hydroxide (KOH) in distilled water.
  • Page 18 Model 306W Model 306W Model 306W Model 306WA A A A A Figure 6: Typical Model 306WA With 2 Alarm Option WARNING: Type A electrolyte is caustic. Use extreme care in handling. Protective equipment including but not limited to gloves and safety glasses should be worn while handling electrolyte.
  • Page 19: Cell Installation

    Operations 4.0 Operations 4.0 Operations 4.0 Operations 4.0 Operations 4.0 Sufficient electrolyte is provided for initial servicing of the cell. Elec- trolyte for future service should be ordered from Teledyne. When ordering, specify type and quantity. 4.2.3 4.2.3 4.2.3 4.2.3 4.2.3 Cell Installation...
  • Page 20 4.0 Operations 4.0 Operations 4.0 Operations 4.0 Operations 4.0 Operations Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Figure 7: Cell Compartment Components TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 21: Calibrator

    The throttle valve is located at the top of the reservoir tank. Refer to Figure 6. 1) Gently turn the valve counterclockwise. A stream of bubbles should appear at the base of the humidifier column, and the float of the flowmeter should rise in its tube. TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 22 4.0 Operations 4.0 Operations 4.0 Operations 4.0 Operations 4.0 Operations Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Figure 8: Calibrator Assembly TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 23: Humidity Control

    4) Continue adjustments at ever-increasing intervals until a constant electrolyte level is attained in the cell. Once the analyzer is suitably located, all components serviced and installed, and sample and electrical connections made, the instrument is ready for operation. TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 24: Power

    4.0 Operations 4.0 Operations 4.0 Operations Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Power Power Power Power Power When power is turned on, it is used to heat the cell compartment and to provide current to the calibrator. The cell operates without applied power, but its output will vary with changes in ambient temperature.
  • Page 25: Flowmeter And Humidifier

    T T T T T race Oxyg race Oxyg race Oxyg race Oxyg race Oxygen Anal en Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Maintenance & Maintenance & Maintenance & T T T T T r r r r r oub Maintenance &...
  • Page 26: Calibration

    5.0 Maintenance & T T T T T r r r r r oub oubleshooting leshooting leshooting leshooting leshooting Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A 5.4 Calibration 5.4 Calibration 5.4 Calibration 5.4 Calibration 5.4 Calibration 5.4.1 5.4.1 Internal Calibration Internal Calibration 5.4.1...
  • Page 27 T T T T T race Oxyg race Oxyg race Oxyg race Oxyg race Oxygen Anal en Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Maintenance & Maintenance & Maintenance & T T T T T r r r r r oub Maintenance &...
  • Page 28: Cell

    5.5.1 Electrolyte Replacement 5.5.1 Electrolyte Replacement Teledyne recommends that the electrolyte be replaced when foreign material is accumulated in the cell or when the cell sensitivity is noticeable decreased. This is typically identified when a large change is made to the span pot setting during calibration.
  • Page 29: Lead Electrode

    If the lead electrode is simply discolored, clean the entire cell accord- ing to the following procedure: a) Heat a quart of Teledyne cleaning solution to slightly below the boiling point, and completely fill the cell cavity with the heated solution.
  • Page 30: Calibrator

    Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A adequate sensitivity, the entire cell assembly must be replaced. Refer to section 4.2.3 4.2.3 4.2.3 4.2.3 4.2.3 for cell installation. 5.7 Calibrator 5.7 Calibrator...
  • Page 31 T T T T T race Oxyg race Oxyg race Oxyg race Oxyg race Oxygen Anal en Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Maintenance & Maintenance & Maintenance & T T T T T r r r r r oub Maintenance &...
  • Page 32: Leak Detection

    Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A 5.9 Leak Detection 5.9 Leak Detection 5.9 Leak Detection 5.9 Leak Detection 5.9 Leak Detection The most frequent cause of trouble in trace measurement is leakage.
  • Page 33: Cell Leak

    T T T T T race Oxyg race Oxyg race Oxyg race Oxyg race Oxygen Anal en Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Maintenance & Maintenance & Maintenance & T T T T T r r r r r oub Maintenance &...
  • Page 34 5.0 Maintenance & T T T T T r r r r r oub oubleshooting leshooting leshooting leshooting leshooting Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Symptom Symptom Symptom Symptom Symptom Cause Cause Cause Cause...
  • Page 35 T T T T T race Oxyg race Oxyg race Oxyg race Oxyg race Oxygen Anal en Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Maintenance & Maintenance & Maintenance & T T T T T r r r r r oub Maintenance &...
  • Page 36 5.0 Maintenance & T T T T T r r r r r oub oubleshooting leshooting leshooting leshooting leshooting Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Symptom Symptom Symptom Symptom Symptom Cause Cause Cause Cause...
  • Page 37 T T T T T race Oxyg race Oxyg race Oxyg race Oxyg race Oxygen Anal en Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Maintenance & Maintenance & Maintenance & T T T T T r r r r r oub Maintenance &...
  • Page 38 5.0 Maintenance & T T T T T r r r r r oub oubleshooting leshooting leshooting leshooting leshooting Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Symptom Symptom Symptom Cause Cause Cause What What What T T T T T o Do...
  • Page 39: Appendix

    Power Requirement: Power Requirement: Power Requirement: Power Requirement: 115 VAC, 50/60 Hz (220 optional) Alarm Output: Alarm Output: Alarm Output: 2 alarms optional. Alarm Output: Alarm Output: Calibrator: Calibrator: Calibrator: Calibrator: Calibrator: Electrolytic Faradic Calibrator. TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 40: Spare Parts List

    Appendix Appendix Appendix Appendix Appendix Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Spare Parts List Spare Parts List Spare Parts List Spare Parts List Spare Parts List QTY. PART NO. DESCRIPTION C1372 Cell assembly NOTE: Specify cell class and range of analyzer when ordering.
  • Page 41: Drawing List

    Analyz yz yz yz yzer er er er er Appendix Appendix Appendix Appendix Appendix SEND ORDERS TO: TELEDYNE ANALYTICAL INSTRUMENTS 16830 CHESTNUT STREET CITY OF INDUSTRY, CALIF. 91749 TELEPHONE: (888) 789-8168 (626) 934-1500 (626) 961-9221 FAX: (626) 961-2538 (626) 934-1651...
  • Page 42: Calibration Data

    Appendix Appendix Appendix Appendix Appendix Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Calibration Data Calibration Data Calibration Data Calibration Data Calibration Data Range Range Range Range Range The ranges of this analyzer are: Range Switch Position No.
  • Page 43 (The flow tube inside the analyzer is measuring the dry dry gas flowrate.) If the actual oxygen concentration were, for example, 8.0 ppm, the resultant reading would be 7.9 (float high) or 8.1 (float low). TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 44 Model 306W Model 306W Model 306W Model 306WA A A A A To determine the corrected vent flow rate it will be necessary to know the ambient temperature (in °K), the ambient pressure (in mm Hg) and the vapor pressure of water at ambient temperature.
  • Page 45 Table 1: Table 1: Table 1: Vapor Pressure of Water Vapor Pressure of Water Vapor Pressure of Water Vapor Pressure of Water Vapor Pressure of Water (From 288–308°K) (From 288–308°K) (From 288–308°K) (From 288–308°K) (From 288–308°K) TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments...
  • Page 46 Appendix Appendix Model 306W Model 306W Model 306W Model 306W Model 306WA A A A A Ambient Temperature (°K) Ambient Temperature (°K) Ambient Temperature (°K) Vapor Pressure of Water (mm Hg) Vapor Pressure of Water (mm Hg) Vapor Pressure of Water (mm Hg) Ambient Temperature (°K)

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