Trace Oxygen Analyzer OPERATING INSTRUCTIONS FOR Model 3000TA 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. ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING.
Model 3000TA 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, magnetic, optical, manual, or otherwise, without the prior written consent of Teledyne Analytical Instruments, 16830 Chestnut Street, City of Industry, CA 917491580.
Trace Oxygen Analyzer 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 check mark in the box.
Model 3000TA Table of Contents 1 Introduction 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Overview ........................................................................ 1-1 Typical Applications ....................................................... 1-1 Main Features of the Analyzer ....................................... 1-1 Model Designations ....................................................... 1-2 Front Panel (Operator Interface) .................................... 1-3 Recognizing Difference Between LCD & VFD .
Trace Oxygen Analyzer 4.3.4 Logout .................................................................... 4-9 4.3.5 System Self-Diagnostic Test .................................. 4-9 4.3.6 Version Screen ...................................................... 4-10 4.3.7 Showing Negative Oxygen Readings .................... 4-11 4.4 The Zero and Span Functions ....................................... 4-11 4.4.1 Zero Cal ................................................................. 4-12 4.4.1.
Model 3000TA DANGER COMBUSTIBLE GAS USAGE WARNING This is a general purpose instrument designed for usage in a nonhazardous area. 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 the principles of operating of this equipment is well understood by the user.
Trace Oxygen Analyzer Introduction 1 Introduction 1.1 Overview The Teledyne Analytical Instruments Model 3000TA Trace Oxygen Analyzer is a versatile microprocessor-based instrument for detecting oxygen at the parts-per-million (ppm) level in a variety of gases. This manual covers the Model 3000TA General Purpose flush-panel and/or rack-mount units only. These units are for indoor use in a nonhazardous environment. 1.
1 Introduction Model 3000TA • Advanced Micro-Fuel Cell, redesigned for trace analysis, has a one year warranty and an expected lifetime of two years. • Versatile analysis over a wide range of applications. • Microprocessor based electronics: 8-bit CMOS microprocessor with 32 kB RAM and 128 kB ROM. • Three user definable output ranges (from 0-10 ppm through 0250,000 ppm) allow best match to users process and equipment. • Air-calibration range for convenient spanning at 20.9 %.
Trace Oxygen Analyzer 1.5 Introduction 1 Front Panel (Operator Interface) The standard 3000TA is housed in a rugged metal case with all controls and displays accessible from the front panel. See Figure 1-1. The front panel has thirteen buttons for operating the analyzer, a digital meter, an alphanumeric display, and a window for viewing the sample flowmeter.
1 Introduction Model 3000TA Data Entry Keys: Six touch-sensitive membrane switches are used to input data to the instrument via the alphanumeric VFD display: • Left & Right Arrows Select between functions currently displayed on the VFD screen. • Up & Down Arrows Increment or decrement values of functions currently displayed. • Enter • Escape Moves VFD display back to the previous screen in a series. If none remains, returns to the Analyze screen.
Trace Oxygen Analyzer 1.7 Introduction 1 Rear Panel (Equipment Interface) The rear panel, shown in Figure 1-2, contains the gas and electrical connectors for external inlets and outlets. Some of those depicted are optional and may not appear on your instrument. The connectors are described briefly here and in detail in chapter 3 Installation. Figure 1-2: Model 3000TA Rear Panel • Power Connection Universal AC power source.
1 Introduction Model 3000TA • Calibration Contact To notify external equipment that instrument is being calibrated and readings are not monitoring sample. • Range ID Contacts Four separate, dedicated, range relay contacts. Low, Medium, High, Cal. • Network I/O Serial digital communications for local network access. For future expansion. Not implemented at this printing.
Trace Oxygen Analyzer Operational Theory 2 Operational Theory 2.1 Introduction The analyzer is composed of three subsystems: 1. Micro-Fuel Cell Sensor 2. Sample System 3. Electronic Signal Processing, Display and Control The sample system is designed to accept the sample gas and transport it through the analyzer without contaminating or altering the sample prior to analysis.
2 Operational Theory Model 3000TA (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 externally in a true fuel cell.) 2.2.2 Anatomy of a Micro-Fuel Cell The Micro-Fuel Cell is a cylinder only 1¼ inches in diameter and 1¼ inches thick.
Trace Oxygen Analyzer Operational Theory 2 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 cm2. The cathode has many perforations to ensure sufficient wetting of the upper surface with electrolyte, and it is plated with an inert metal. The anode structure is below the cathode.
2 Operational Theory Model 3000TA The overall reaction for the fuel cell is the SUM of the half reactions above, or: 2Pb + O2 → 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 output of the fuel cell is limited by (1) the amount of oxygen in the cell at the time and (2) the amount of stored anode material. In the absence of oxygen, no current is generated. 2.2.
Trace Oxygen Analyzer Operational Theory 2 Figure 2-3. Characteristic Input/Output Curve for a Micro-Fuel Cell 2.3 Sample System The sample system delivers gases to the Micro-Fuel Cell sensor from the analyzer rear panel inlet. Depending on the mode of operation either sample or calibration gas is delivered. The Model 3000TA sample system is designed and fabricated to ensure that the oxygen concentration of the gas is not altered as it travels through the sample system.
2 Operational Theory Model 3000TA Figure 2-4: Piping Layout and Flow Diagram for Standard Model Figure 2-5 is the flow diagram for the sampling system. In the standard instrument, calibration gases (zero and span) can be connected directly to the Sample In port by teeing to the port with appropriate valves. The shaded portion of the diagram shows the components added when the –C option is ordered.
Trace Oxygen Analyzer Operational Theory 2 Figure 2-5: Flow Diagram 2.4 Electronics and Signal Processing The Model 3000TA Trace Oxygen Analyzer uses an 8031 microcontroller with 32 kB of RAM and 128 kB of ROM to control all signal processing, input/output, and display functions for the analyzer. System power is supplied from a universal power supply module designed to be compatible with any international power source. Figure 2-6 shows the location of the power supply and the main electronic PC boards.
2 Operational Theory Model 3000TA The signal processing electronics including the microprocessor, analog to digital, and digital to analog converters are located on the motherboard at the bottom of the case. The preamplifier board is mounted on top of the motherboard as shown in the figure. These boards are accessible after removing the back panel. Figure 2-7 is a block diagram of the Analyzer electronics.
Trace Oxygen Analyzer Operational Theory 2 In the presence of oxygen the cell generates a current. A current to voltage amplifier converts this current to a voltage, which is amplified in the second stage amplifier. The second stage amplifier also supplies temperature compensation for the oxygen sensor output. This amplifier circuit incorporates a thermistor, which is physically located in the cell block.
2 Operational Theory 2-10 Teledyne Analytical Instruments Model 3000TA
Trace Oxygen Analyzer Installation 3 Installation Installation of the Model 3000TA Analyzer includes: 1. 2. 3. 4. 5. 6. Unpacking Mounting Gas connections Electrical connections Installing the Micro-Fuel Cell Testing the system. 3.1 Unpacking the Analyzer The analyzer is shipped with all the materials you need to install and prepare the system for operation. Carefully unpack the analyzer and inspect it for damage. Immediately report any damage to the shipping agent. 3.
3 Installation Model 3000TA 6.7" 10" Figure 3-1: Front Panel of the Model 3000TA All operator controls are mounted on the control panel, which is hinged on the left edge and doubles as the door that provides access to the sensor and cell block inside the instrument. The door is spring loaded and will swing open when the button in the center of the latch (upper right corner) is pressed all the way in with a narrow gauge tool (less than 0.
Trace Oxygen Analyzer Installation 3 Figure 3-3: Rear Panel of the Model 3000TA 3.3.1 Gas Connections Before using this instrument, it should be determined if the unit will be used for pressurized service or vacuum service and low pressure applications. Inspect the restrictor kit that came with the unit. The kit consist of two restrictors and a union for 1/4” diameter tubing. Notice that the two 1 3/4” long, 1/4” diameter tubing are restrictors.
3 Installation Model 3000TA The unit is manufactured with 1/4 inch tube fittings, and 6 mm adapters are supplied for metric system installations. For a safe connection: 1. Insert the tube into the tube fitting, and finger-tighten the nut until the tubing cannot be rotated freely, by hand, in the fitting. (This may require an additional 1/8 turn beyond finger-tight.) 2. Hold the fitting body steady with a backup wrench, and with another wrench rotate the nut another 1-1/4 turns.
Trace Oxygen Analyzer Installation 3 Primary Input Power: The power cord receptacle and fuse block are located in the same assembly. Insert the female plug end of the power cord into the power cord receptacle. CAUTION: Power is applied to the instrument's circuitry as long as the instrument is connected to the power source. The switch on the front panel is for switching power on or off to the displays and outputs only. The universal power supply requires a 85–250 V ac, 47-63 Hz power source.
3 Installation Model 3000TA Alarm Relays: The three alarm-circuit connectors are spring terminals for making connections to internal alarm relay contacts. Each provides a set of Form C contacts for each type of alarm. Each has both normally open and normally closed contact connections. The contact connections are indicated by diagrams on the rear panel. They are capable of switching up to 3 amperes at 250 V ac into a resistive load. See Figure 3-5.
Trace Oxygen Analyzer Installation 3 Digital Remote Cal Inputs: Accept 0 V (off) or 24 V dc (on) inputs for remote calibration control. (See Remote Calibration Protocol below.) Zero: Floating input. 5 to 24 V input across the + and – terminals puts the analyzer into the Zero mode. Either side may be grounded at the source of the signal. 0 to 1 volt across the terminals allows Zero mode to terminate when done. A synchronous signal must open and close the external zero valve appropriately. See 3.3.
3 Installation Model 3000TA Note: The Remote Probe connector (paragraph 3.3.3) provides signals to ensure that the zero and span gas valves will be controlled synchronously. If you have the –C Internal valve option—which includes additional zero and span gas inputs— the 3000T automatically regulates the zero, span and sample gas flow. Range ID Relays: Four dedicated Range ID relay contacts.
Trace Oxygen Analyzer Installation 3 Table 3-2: Required RS-232 Options Parameter Baud Byte Parity Stop Bits Message Interval Setting 2400 8 bits none 1 2 seconds 3.3.3 Remote Probe Connector The 3000TA is a single-chassis instrument, which has no Remote Probe Unit. Instead, the Remote Probe connector is used as another method for controlling external sample/zero/span gas valves. See Figure 3-6.
3 Installation Model 3000TA Figure 3-7: FET Series Resistance 3.4 Installing the Micro-Fuel Cell The Micro-Fuel Cell is not installed in the cell block when the instrument is shipped. Install it before the analyzer is placed in service. Once it is expended, or if the cell is exposed to air for too long, the Micro-Fuel Cell will need to be replaced. The cell could also require replacement if the instrument has been idle for too long.
Trace Oxygen Analyzer Operation 4 Operation 4.1 Introduction Once the analyzer has been installed, it can be configured for your application. To do this you will: • • • • Set system parameters: • Establish a security password, if desired, requiring Operator to log in. • Establish and start an automatic calibration cycle, if desired. Calibrate the instrument. Define the three user selectable analysis ranges. Then choose autoranging or select a fixed range of analysis, as required.
4 Operation 4.2 Model 3000TA Using the Data Entry and Function Buttons Data Entry Buttons: The < > arrow buttons select options from the menu currently being displayed on the VFD screen. The selected option blinks. When the selected option includes a modifiable item, the Δ∇ arrow buttons can be used to increment or decrement that modifiable item. The Enter button is used to accept any new entries on the VFD screen.
Trace Oxygen Analyzer Operation 4 ANALYZE SYSTEM Perform Oxygen Analysis of the Sample SPAN TRAK/HLD ZERO Set Instrument Span Perform Self-Diagnostic Test ALARMS Set Instrument Zero Initiate Automatic Calibration RANGE Set Alarm Setpoints Confrigure Mode of Alarm Operation Set Password Define Analysis Ranges Logout Show Negative Figure 4-1: Hierarchy of Functions and Subfunctions 4.3 The System Function The subfuctions of the System function are described below.
4 Operation • • • • • • Model 3000TA After a password is assigned, the operator must log out to activate it. Until then, anyone can continue to operate the instrument without entering the new password. Only one password can be defined. Before a unique password is assigned, the system assigns TETAI by default. This allows access to anyone. After a unique password is assigned, to defeat the security, the password must be changed back to TETAI.
Trace Oxygen Analyzer Operation 4 In the first line, TRACK or HOLD should be blinking. The operator can toggle between TRACK and HOLD with the Up or Down keys. When TRACK is selected, the analog outputs (0-1 VDC and 4-20 ma) and the range ID contacts will track the instrument readings during calibration (either zero or span). TRACK is the factory default.
4 Operation Model 3000TA Use < > arrows to blink Auto—Cal, and press Enter. A new screen for Span/Zero set appears. Span OFF Nxt: 0d 0h Zero OFF Nxt: 0d 0h Press < > arrows to blink Span (or Zero), then press Enter again. (You won’t be able to set OFF to ON if a zero interval is entered.) A Span Every ... (or Zero Every ...) screen appears. Span Every 0 d Start 0 h from now Use Δ∇ arrows to set an interval value, then use < > arrows to move to the start-time value.
Trace Oxygen Analyzer Operation 4 Press System to enter the System mode. TRAK/HLD—Cal PSWD Logout More Use the < > arrow keys to scroll the blinking over to PSWD, and press Enter to select the password function. Either the default TETAI password or AAAAA place holders for an existing password will appear on screen depending on whether or not a password has been previously installed. T E T AI Enter PWD or AAAAA Enter PWD The screen prompts you to enter the current password.
4 Operation Model 3000TA Press Enter to change the password (either the default TBEAI or the previously assigned password), or press Escape to keep the existing password and move on. If you chose Enter to change the password, the password assignment screen appears. TE T AI To Proceed or AAAAA To Proceed Enter the password using the < > arrow keys to move back and forth between the existing password letters, and the Δ∇ arrow keys to change the letters to the new password.
Trace Oxygen Analyzer Operation 4 will immediately switch to the Analyze screen, and you now have access to all instrument functions. If all alarms are defeated, the Analyze screen appears as: 0.0 ppm Anlz Range: 0 — 100 If an alarm is tripped, the second line will change to show which alarm it is: 0.0 ppm Anlz AL—1 NOTE: If you log off the system using the logout function in the system menu, you will now be required to re-enter the password to gain access to Span, Zero, Alarm, and Range functions. 4.3.
4 Operation Model 3000TA Press the System button to start the System function. TRAK/HLD Auto—Cal PSWD Logout More Use the < > arrow keys to blink More, then press Enter. Version Self—Test Use the < > arrow keys again to move the blinking to the Self–Test function. The screen will follow the running of the diagnostic. RUNNING DIAGNOSTIC Testing Preamp — 83 During preamp testing there is a countdown in the lower right corner of the screen. When the testing is complete, the results are displayed.
Trace Oxygen Analyzer Operation 4 TRAK/HLD Auto-Cal PSWD Logout More - Use the Right or Left arrow keys and select More. Press Enter. Version Self-Test Show_Negative=NO - Use the Right or Left arrow keys and select “Show_Negative=NO”. - Use the Up or Down key to toggle from NO to YES. - Press the Escape key twice to return to the analyze mode. This preference is stored in non-volatile memory, so this configuration is remembered after a power shutdown.
4 Operation Model 3000TA Shut off the gas pressure before connecting it to the analyzer, and be sure to limit the pressure to 40 psig or less when turning it back on. Readjust the gas pressure into the analyzer until the flowrate (as read on the analyzer’s SLPM flowmeter) settles between 0.1 and 2.4 SLPM (approximately 0.2 - 5 SCFH). If you are using password protection, you will need to enter your password to gain access to either of these functions. Follow the instructions in sections 4.3.
Trace Oxygen Analyzer Operation 4 #### 4 Left=### PPM Zero ppm/s The zeroing process will automatically conclude when the output is within the acceptable range for a good zero. Then the analyzer automatically returns to the Analyze mode. 4.4.1.2 Manual Mode Zeroing Press Zero to enter the Zero function. The screen that appears allows you to select between automatic or manual zero calibration. Use the Δ∇ keys to toggle between AUTO and MAN zero settling. Stop when MAN appears, blinking, on the display.
4 Operation Model 3000TA CELL FAIL/ ZERO HIGH Before replacing the cell: a. Check your span gas to make sure it is within specifications. b. Check for leaks downstream from the cell, where oxygen may be leaking into the system. If there are no leaks and the span gas is OK, replace the cell as described in chapter 5, Maintenance. 4.4.2 Span Cal The Span button on the front panel is used to span calibrate the analyzer.
Trace Oxygen Analyzer Operation 4 Use the Δ∇ arrow keys to enter the oxygen-concentration mode. Use the < > arrow keys to blink the digit you are going to modify. Use the Δ∇ arrow keys again to change the value of the selected digit. When you have finished typing in the concentration of the span gas you are using (209000.00 if you are using air), press Enter to begin the Span calibration. #### ppm Span Slope=#### ppm/s The beginning span value is shown in the upper left corner of the display.
4 Operation Model 3000TA Once the span has begun, the microprocessor samples the output at a predetermined rate. It calculates the difference between successive samplings and displays this difference as Slope on the screen. It takes several seconds for the first Slope value to display. Slope indicates rate of change of the Span reading. It is a sensitive indicator of stability. #### Slope=#### % Span ppm/s When the Span value displayed on the screen is sufficiently stable, press Enter.
Trace Oxygen Analyzer Operation 4 Chapter 3, Installation and/or the Interconnection Diagram included at the back of this manual for relay terminal connections. The system failure alarm has a fixed configuration described in chapter 3 Installation. The concentration alarms can be configured from the front panel as either high or low alarms by the operator. The alarm modes can be set as latching or non-latching, and either failsafe or non-failsafe, or, they can be defeated altogether.
4 Operation Model 3000TA If you are using password protection, you will need to enter your password to access the alarm functions. Follow the instructions in section 4.3.3 to enter your password. Once you have clearance to proceed, enter the Alarm function. Press the Alarm button on the front panel to enter the Alarm function. Make sure that AL–1 is blinking. AL—1 AL—2 Choose Alarm Set up alarm 1 by moving the blinking over to AL–1 using the < > arrow keys. Then press Enter to move to the next screen.
Trace Oxygen Analyzer 4.6 Operation 4 The Range Function The Range function allows the operator to program up to three concentration ranges to correlate with the DC analog outputs. If no ranges are defined by the user, the instrument defaults to: Low = 0–100 ppm Med = 0–1,000 ppm High = 0–10,000 ppm. The Model 3000TA is set at the factory to default to autoranging. In this mode, the microprocessor automatically responds to concentration changes by switching ranges for optimum readout sensitivity.
4 Operation Note: Model 3000TA The ranges must be increasing from low to high, for example, if range 1 is set as 0–100 ppm and range 2 is set as 0–1,000 ppm, range 3 cannot be set as 0– 500 ppm since it is lower than range 2. Ranges, alarms, and spans are always set in ppm units (over the entire 0-250,000 ppm range), even though all concentration-data outputs change from ppm units to percent when the concentration is above 10,000 ppm. 4.6.
Trace Oxygen Analyzer Operation 4 lyze function. Alternatively, you can press the Analyze button at any time to return to analyzing your sample. 4.8 Signal Output The standard Model 3000TA Trace Oxygen Analyzer is equipped with two 0–1 V dc analog output terminals accessible on the back panel (one concentration and one range ID), and two isolated 4–20 mA dc current outputs (one concentration and one range ID). See Rear Panel in Chapter 3, Installation, for illustration.
4 Operation Model 3000TA Range LO Voltage (V) 0.25 Current (mA) 8 MED 0.50 12 HI 0.75 16 CAL (0-25%) 1.00 20 IMPORTANT: 4-22 In the event of loss of flow through the analyzer, if the vent is vented to a location of high oxygen content, oxygen will back diffuse through the vent line and in most cases quickly saturate the cell with oxygen which can then require a quite long purge down time for the sensor when then exposed to low oxygen concentrations.
Trace Oxygen Analyzer Maintenance 5 Maintenance 5.1 Routine Maintenance Aside from normal cleaning and checking for leaks at the gas connections, routine maintenance is limited to replacing Micro-Fuel cells and fuses, and recalibration. For recalibration, see Section 4.4 Calibration. WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS MANUAL. 5.2 Cell Replacement The L-2 Micro-Fuel Cell is a sealed electrochemical transducer with no electrolyte to change or electrodes to clean.
5 Maintenance Model 3000TA WARNING: THE SENSOR USED IN THE MODEL 3000TA TRACE OXYGEN ANALYZER USES ELECTROLYTES WHICH CONTAIN TOXIC SUBSTANCES, MAINLY LEAD AND POTASSIUM HYDROXIDE, THAT CAN BE HARMFUL IF TOUCHED, SWALLOWED, OR INHALED. AVOID CONTACT WITH ANY FLUID OR POWDER IN OR AROUND THE UNIT. WHAT MAY APPEAR TO BE PLAIN WATER COULD CONTAIN ONE OF THESE TOXIC SUBSTANCES. IN CASE OF EYE CONTACT, IMMEDIATELY FLUSH EYES WITH WATER FOR AT LEAST 15 MINUTES. CALL PHYSICIAN.
Trace Oxygen Analyzer Maintenance 5 1. Remove power to the instrument by unplugging the power cord at the power source. 2. Open the front panel door by pressing the release button on the top right corner of the door all the way in with a narrow gauge tool, such as a small screwdriver, and releasing it. 3. With one hand placed underneath the cell block ready to catch the Micro-Fuel cell , lift up on the stainless steel gate in front of the cell block. This releases the cell and cell holder from the block.
5 Maintenance Model 3000TA 5.2.4 Installing a New Micro-Fuel Cell It is important to minimize the amount of time that a Teledyne Trace Oxygen Sensor is exposed to air during the installation process. The quicker the sensor can be installed into the unit, the faster your TAI O2 sensor will recover to low O2 measurement levels. CAUTION: Do not touch the sensing surface of the cell. It is covered with a delicate Teflon membrane that can leak when punctured.
Trace Oxygen Analyzer Maintenance 5 5.2.5 Cell Warranty The Class L-2 Micro-Fuel cell is used in the Model 3000TA. This cell is a long life cell and is warranted for 1 year from the date of shipment. Note any Addenda attached to the front of this manual for special information applying to your instrument. With regard to spare cells, warranty period begins on the date of shipment. The customer should purchase only one spare cell (per section 5.2.1). Do not attempt to stockpile spare cells.
5 Maintenance Model 3000TA 2. To change between American and European fuses, remove the single retaining screw, flip Fuse Block over 180 degrees, and replace screw. 3. Replace fuse as shown in Figure 5-3. 4. Reassemble Housing as shown in Figure 5-2. American Fuses European Fuses Figure 5-3: Installing Fuses 5.4 System Self Diagnostic Test 1. Press the System button to enter the system mode. 2. Use the < > arrow keys to move to More, and press Enter. 3.
Trace Oxygen Analyzer 5.5 Maintenance 5 Major Internal Components The Micro-Fuel cell is accessed by unlatching and swinging open the front panel, as described earlier. Other internal components are accessed by removing the rear panel and sliding out the entire chassis. See Figure 5-4, below. The gas piping is illustrated in Figure 2-4, and the major electronic components locations are shown in Figure 2-5, in chapter 2. WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS MANUAL.
5 Maintenance 5.6 Model 3000TA Cleaning If instrument is unmounted at time of cleaning, disconnect the instrument from the power source. Close and latch the front-panel access door. Clean outside surfaces with a soft cloth dampened slightly with plain clean water. Do not use any harsh solvents such as paint thinner or benzene. For panel-mounted instruments, clean the front panel as prescribed in the above paragraph. DO NOT wipe front panel while the instrument is controlling your process. 5.
Trace Oxygen Analyzer Appendix Appendix A-1 Specifications Packaging: General Purpose • Flush panel mount (Standard). • Relay rack mount. Contains either one or two instruments in one 19" relay rack mountable plate (Optional). Sensor: Teledyne L-2 trace analysis Micro-Fuel Cell. Cell Block: 316 stainless steel. Sample System: All wetted parts of 316 stailess steel. 90 % Response Time: 65 seconds at 25 °C (77 °F).
Appendix Model 3000TA Accuracy: ±2% of full scale at constant temperature. ±5% of full scale over operating temperature range, except 0-10 ppm analysis range, once thermal equilibrium is reached. ±1 ppm on 0-10 ppm analysis range, once thermal equilibrium is reached. Analog outputs: 0-1 V dc percent-of-range, 0-1 V dc range ID. 4-20 mA dc—isolated—percent-of-range, 4-20 mA dc—isolated—range ID. Dimensions: 19 cm high, 24.9 cm wide, 31 cm deep (6.96 in high, 8.7 in wide, 12.2 in deep).
Trace Oxygen Analyzer Appendix A-2 Recommended 2-Year Spare Parts List QTY.
Appendix Model 3000TA A-3 Drawing List D-62928 Final Assembly/Outline Drawing A-4 19-inch Relay Rack Panel Mount Figure A-1: Single and Dual 19" Rack Mounts NOTE: A-4 The MSDS on this material is available upon request through the Teledyne Environmental, Health and Safety Coordinator.
Trace Oxygen Analyzer Appendix A-5 3000 SERIES ANALYZERS APPLICATION NOTES ON RESTRICTORS, PRESSURES, AND FLOW RECOMMENDATIONS 3000 series analyzers require reasonably regulated sample pressures. While the 3000 analyzers are not sensitive to variations of incoming pressure (provided they are properly vented to atmospheric pressure) the pressure must be maintained as to provide a useable flow rate trough the analyzer. Any line attached to sample vent should be 1/4 or larger in diameter.
Appendix Model 3000TA The second function that the restriction device provides is a pressure drop. This device is selected to provide the only significant pressure drop in the sample path. RESTRICTOR KIT The current revision of the 3000 series analyzers are supplied with a kit containing two restrictors and a union which are user installed. These parts supplied to give the end user more flexibility when installing the analyzer.
Trace Oxygen Analyzer Appendix CALIBRATION GAS: 3000 series analyzer requirements for units with Auto-Cal options. The customer must supply a control valves (or restrictors) for any SPAN or ZERO gas source which is attached to the Auto-Cal ports. The valve should be adjusted to the same flow rate as the sample gas . When restrictors are used, the gas pressure must be adjusted to achieve the proper flow rate.
Appendix A-8 Model 3000TA Teledyne Analytical Instruments
Trace Oxygen Analyzer Appendix A-6 Material Safety Data Sheet Section I – Product Identification Product Name: Micro-Fuel Cells and Super Cells, all classes except A-2C, A-3, and A-5. Electrochemical Oxygen Sensors, all classes except R-19. Mini-Micro-Fuel Cells, all classes.
Appendix Model 3000TA Section IV – Fire and Explosion Hazard Data Flash Point: na Flammable Limits: na LEL: na UEL: na Extinguishing Media: Use extinguishing media appropriate to surrounding fire conditions. No specific agents recommended. Special Fire Fighting Equipment: Wear NIOSH/OSHA approved self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes. Unusual Fire and Explosion Hazards: Emits toxic fumes under fire conditions.
Trace Oxygen Analyzer Appendix Signs and Symptoms of Exposure: Contact of electrolyte with skin or eyes will cause a burning sensation and/or feel soapy or slippery to touch. Other symptoms of exposure to lead include loss of sleep, loss of appetite, metallic taste and fatigue. Carcinogenicity: Lead is classified by the IARC as a class 2B carcinogen (possibly carcinogenic to humans) OSHA: Where airborne lead exposures exceed the OSHA action level, refer to OSHA Lead Standard 1910.1025.
Appendix Model 3000TA Section VIII – Control Measures Eye Protection: Chemical splash goggles Hand Protection: Rubber gloves Other Protective Clothing: Apron, face shield Ventilation: na Section IX – Disposal Both lead and potassium hydroxide are considered poisonous substances and are regulated under TSCA and SARA Title III. EPA Waste Number: D008 California Waste Number: 181 DOT Information: RQ Hazardous Waste Solid N.O.S.
Trace Oxygen Analyzer Appendix Teledyne Analytical Instruments A-13
