Teledyne 3190 Series Operating Instructions Manual
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Teledyne 3190 Series Operating Instructions Manual

Trace oxygen analyzer
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OPERATING INSTRUCTIONS

FOR
Model 3190 Series
Trace Oxygen Analyzer
DANGER
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.
P/N M64641
ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. BEFORE
06/21/2000
CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/MANAGER.
ECO # 00-0221
Teledyne Analytical Instruments
i

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  • Page 1: Operating Instructions

    OPERATING INSTRUCTIONS Model 3190 Series Trace Oxygen Analyzer DANGER 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.
  • Page 2 Any safeguards required such as locks, labels, or redundancy, must be provided by the user or specifically requested of Teledyne at the time the order is placed.
  • Page 3 For General Purpose and high hydrogen or helium backgrounds (range 0-10 ppm minimum). ❑ ❑ ❑ ❑ ❑ Class Z-2C Micro-Fuel Cell: For faster recovery after air calibration (range 0-200 ppm O minimum). Class B-2C is the standard cell provided. Teledyne Analytical Instruments...

  • Page 4: Table Of Contents

    3.5 Installation Checklist ............3-7 Operation 4.1 Introduction ..............4-1 4.2 Using the Function and Data Entry Buttons ....4-2 4.3 Setting the Analysis Ranges .......... 4-2 4.3.1 HI Range ............... 4-3 4.3.2 LO Range .............. 4-3 4.3.3Settle Mode ............... 4-3 Teledyne Analytical Instruments...
  • Page 5 5.2.4 Installing a Micro-Fuel Cell ........5-4 5.2.5 Cell Warranty Conditions ........5-5 Appendix A.1 Specifications ..............A-1 A.2 Spare Parts List ............. A-2 A.3 Drawing List ..............A-3 A.4 Miscellaneous ..............A-3 A.5 Material Safety Data Sheet ..........A-4 Teledyne Analytical Instruments...
  • Page 6 Teledyne Analytical Instruments...

  • Page 7: Introduction

    Introduction 1 Introduction 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 response, and a compact, rugged construction.

  • Page 8: Front Panel Description

    LED for operating the analyzer. These features are described briefly here and in greater detail in Chapter 4, Operation. Figure 1-1: Front Panel Function Keys: Seven pushbutton membrane switches are used to select the function performed by the analyzer: Teledyne Analytical Instruments...

  • Page 9: Rear Panel Description

    The rear panel contains the electrical input and output connectors. Separate rear panel illustrations are shown in Figure 1-2 for the AC and DC powered versions of the instrument. The connectors are described briefly here and in detail in the Installation chapter of this manual. Teledyne Analytical Instruments...
  • Page 10 Chapter 5, Maintenance. I/O Power Switch: Turns the instrument power ON (1) or OFF (0). • Analog Outputs 0–10 V dc concentration output. 0–10 V dc range ID (or optional overrange) output. 4–20 mA dc concentration output, negative ground. Teledyne Analytical Instruments...
  • Page 11 Introduction 1 • 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. Teledyne Analytical Instruments...
  • Page 12 1 Introduction Model 3190 Teledyne Analytical Instruments...

  • Page 13: Operational Theory

    Its action is similar to that of a battery. There is, however, an important difference in the operation of a battery as compared to the Micro-Fuel Cell: In the battery, all reactants are Teledyne Analytical Instruments...

  • Page 14: Anatomy Of A Micro-Fuel Cell

    Figure 2-1 illustrates the external features. Figure 2-1: Micro-Fuel Cell Refer to Figure 2-2, Cross Section of a Micro-Fuel Cell, which illus- trates the following internal description. Figure 2-2. Cross Section of a Micro-Fuel Cell (simplified) Teledyne Analytical Instruments...

  • Page 15: Electrochemical Reactions

    It is measured and used to determine the oxygen concentration in the gas mixture. The overall reaction for the fuel cell is the SUM of the half reactions above, or: Teledyne Analytical Instruments...

  • Page 16: The Effect Of Pressure

    2-2 decreases. In the Model 3190, the slope is monitored. If the inverse of the slope: Span Value (ppm) / Cell Output (nA) is over 4.447 ppm/nA, a sensor failure alarm is triggered, indicating that the cell should be replaced. Teledyne Analytical Instruments...

  • Page 17: Electronics

    Main PCB, which is mounted vertically, just behind the front panel of the Control Unit. 2.3.2 Signal Processing Figure 2-3 is a block diagram of the signal processing electronics described below. Teledyne Analytical Instruments...
  • Page 18 The same digital information is also sent to a 12-bit digital to analog converter (DAC) that produces the 0-10 V dc analog concentration signal and the 0-10 V dc analog range ID output. A current to voltage converter (E–I CONV) produces the 4-20 mA dc concentration signal. Teledyne Analytical Instruments...

  • Page 19: Installation

    Unpacking the Analyzer As soon as you receive the instrument, carefully unpack and inspect Control Unit, External Probe, and any included accessories for damage. Immediately report any damage to the shipping agent. The analyzer is Teledyne Analytical Instruments...

  • Page 20: Location And Mounting

    External Probe used. The addendum will reference the specific Outline and Interconnection Drawings in the Drawings section of this manual, and provides any other appropriate information. Teledyne Analytical Instruments...

  • Page 21: Installing The Micro-Fuel Cell

    Both versions have identical connections for the External Probe, the alarms, and for the digital and analog concentration outputs. For detailed pinouts, see the wiring/interconnection drawings in the Drawings section at the rear of this manual. Teledyne Analytical Instruments...
  • Page 22 The Power switch is located on the right-hand end of the power source input receptacle assembly. Primary Input Power (DC version): The 10–36 V dc power is connected via the + and − terminals in the upper left corner of the panel. The Teledyne Analytical Instruments...
  • Page 23 If power fails the relays de- energize (alarms activated). The contact connections are indicated diagrammatically on the rear panel as Normally Closed, Common, and Normally Open. Figure 3-2 explains how these act in failsafe operation. Teledyne Analytical Instruments...
  • Page 24 2400 Byte 8 bits Parity none Stop Bits Message Rate 2 per second External Probe: The receptacle for the analysis unit cable is located in the lower left-hand corner of the rear panel. The 6-pin Mini-Fit™ connector Teledyne Analytical Instruments...

  • Page 25: Gas Connections

    Opened the isolation valves • Checked for leaks • Set the sample pressure to 5–10 psig, nominal Once the above checks have been made, you can connect to the power source. The instrument is now ready for operation. Teledyne Analytical Instruments...
  • Page 26 3 Installation Model 3190 Teledyne Analytical Instruments...

  • Page 27: Operation

    Analyzing for the trace oxygen level in the gas passing through the cell block is the default mode of operation. As long as no front panel buttons are being pressed the Analyzer is analyzing. Figure 4-1: Front Panel Controls and Indicators Using the Function and Data Entry Teledyne Analytical Instruments...

  • Page 28: Setting The Analysis Ranges

    LO range when the oxygen concentration falls below the LO range fullscale value Note: For proper operation, the HI Range setpoint should be set at a higher concentration than the LO Range setpoint. Teledyne Analytical Instruments...

  • Page 29: Hi Range

    LO Alarm setpoint. 4.4.1 HI Alarm Setting the HI Alarm sets the value ABOVE which the HI Alarm will activate. To Set the HI Alarm: 1. Press the SET HI ALARM Function button once. Teledyne Analytical Instruments...

  • Page 30: Lo Alarm

    Calibration Range, EVEN THOUGH INSTRUMENT IS IN THE FIXED RANGE MODE. Calibration Preliminary—If not already done: Power up the Analyzer and allow the LED reading to stabilize. Set the Alarm setpoints and the fullscale ranges to the desired values. Teledyne Analytical Instruments...

  • Page 31: Displaying Percent & Ppm On The Led Display

    9999 ppm. When the reading changes to percent, the LED display will alternate between flashing “PC” and the oxygen concentration. On the other hand, if the instrument is displaying ppm, only the concentra- tion reading will be shown. Teledyne Analytical Instruments...

  • Page 32: Setl" Mode In The Led Display

    It takes longer for the electronics to settle when switching to the high gain than when switching to low gain, that is the reason why the count- down only appears when the sensor reading is going down and not up. Teledyne Analytical Instruments...

  • Page 33: Maintenance

    3. Insert a small flat-blade screwdriver into the slot in the receptacle wall nearest the fuse and gently pry open the fuse receptacle. The fuse holder will slide out. The fuse in use is visible in the clip. To Teledyne Analytical Instruments...

  • Page 34: Dc Powered Units

    If the front panel Trace Oxygen Meter displays “00.0” when the unit is plugged in, and the power switch is in the ON position, CHECK to make sure the sensor is connected. If it is, replace the sensor. Teledyne Analytical Instruments...

  • Page 35: Ordering And Handling Of Spare Sensors

    Refer to Figure 5-2 for an exploded view of the cell block and cell. To remove a spent or damaged Micro-Fuel Cell: 1. Disconnect the Power Source at the Control Unit. 2. Disconnect the connector from the cell block if possible. Teledyne Analytical Instruments...

  • Page 36: Installing A Micro-Fuel Cell

    ENVIRONMENTAL AND SAFETY laws. 5.2.4 Installing a Micro-Fuel Cell To install a new Micro-Fuel Cell: CAUTION: Do not scratch, puncture, or otherwise damage the sensing membrane of the Micro-Fuel Cell. If the membrane is damaged, the cell must be replaced. Teledyne Analytical Instruments...

  • Page 37: Cell Warranty Conditions

    If it is determined that failure is due to faulty work- manship or material, the cell will be replaced at no cost to you. Note: Evidence of damage due to tampering or mishandling will render the cell warranty null and void. Teledyne Analytical Instruments...
  • Page 38 5 Maintenance Model 3190 Teledyne Analytical Instruments...

  • Page 39: Appendix A.1 Specifications

    AC (100 to 240 V ac, 47/440 Hz), or DC (10-36 V dc); user specified. System Enclosure: Panel Mount: 2.81" H × 6.0" W ×2.87" D (71.4 mm × 152.4 mm ×72.9 mm). Face Plate: 3.75" H ×7.0" W Teledyne Analytical Instruments...

  • Page 40: Spare Parts List

    Send orders to: Teledyne Analytical Instruments 16830 Chestnut Street City of Industry, CA 91749-1580 Telephone: (626) 934-1500 Web Site: www.teledyne-ai.com Fax: (626) 961-2538, (626) 934-1651 Technical Support: (626) 534-1673 Web: www.teledyne-ai.com or your local representative. Teledyne Analytical Instruments...

  • Page 41: Drawing List

    The symbol: ~ is used on the rear panel of the model 3190 to signify volts alternating current (V ac). NOTE: The MSDS on this material is available upon request through the Teledyne Environmental, Health and Safety Coordinator. Contact at (626) 934-1592 Teledyne Analytical Instruments...
  • Page 42 Appendix Model 3190 Teledyne Analytical Instruments...

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